DOCSLIB.ORG

Emi/Emc Analysis of Electronic Systems Subject to Near Zone Illuminations

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Emi/Emc Analysis of Electronic Systems Subject to Near Zone Illuminations EMI/EMC ANALYSIS OF ELECTRONIC SYSTEMS SUBJECT TO NEAR ZONE ILLUMINATIONS DISSERTATION Presented in Partial Fulfillment of the Requirements for the Degree Doctor of Philosophy in the Graduate School of The Ohio State University By Zulfiqar A. Khan, M.S., B.S. ***** The Ohio State University 2007 Dissertation Committee: Approved by Professor John L. Volakis, Adviser Professor Prabhakar H. Pathak Adviser Dr. Chi-Chih Chen Graduate Program in Electrical and Computer Engineering c Copyright by Zulfiqar A. Khan 2007 ABSTRACT There is an increasing interest to evaluate performance of electronic systems sub- ject to electromagnetic interference (EMI). To this end, an efficient technique for system level EMI/EMC analysis of electronic systems was recently proposed. This scheme, referred to as the hybrid S-matrix method, is based on introducing an ad- ditional port on the printed circuit board (PCB) and cable network to represent the plane wave excitation. The scattering matrix for the network (with the added port) is generated once the transmission line (TL) modes are extracted from the induced voltages. The resulting hybrid S-matrix allows for complete characterization of a mi- crowave network in presence of enclosures or other scatterers. It can then be ported into a circuit solver for complex EMI/EMC analysis of electronic devices. This dis- sertation extends the hybrid S-matrix approach to near zone sources. A key aspect of this generalization is the use of the FFT rather than the GPOF to identify the TL modes in presence of the continuous spectrum of forced modes introduced by the near zone sources. Examples are shown to validate the generalized hybrid S-matrix method. These include a multi-layered PCB in the presence of nearby cables and when enclosed by the metallic structures with openings. The final chapter of the dissertation contains numerous experimental examples that provide for the first time a set of realistic EMI/EMC reference data. Specifically, field penetration through apertures and coupling of penetrating wires onto the printed circuit boards (PCBs) ii enclosed by resonant structures are considered. In contrast to other measurements, we focus on multi-cavity enclosures in presence of cables and PCBs. The purpose of this experimental study is to provide accurate reference data for possible future validation of various computational tools and to test their accuracy and efficiency on realistic platforms. In particular, we validate the proposed hybrid S-matrix method. iii Dedicated to Laila iv ACKNOWLEDGMENTS I have so many reasons to thank Prof. Volakis that I can’t mention all of them here. He has not only guided me in my technical work, encouraged me to take risks in my research and helped me in improving my communication skills but also he also helped me resolve many personal challenges that I had to face during my PhD. For all these reasons and more, I will always remain grateful to him. I also want to thank Dr. Yakup Bayram for his guidance throughout my work and helping me understand very important details of the hybrid S-matrix approach. I am grateful to Prof. Prabhakar Pathak, Dr. Chi-Chih Chen and Professor Patrick Roblin for their valuable suggestions and agreeing to be on my PhD commit- tee. Throughout my stay in the Lab, I had a great time with fellow ESL students. I wish to thank all of them. Special thanks are to Brian Usner, Edwin Lim, Ming Lee, Ioannis Tzanidis, Tao Peng, Paul Chang, Salih Yarga, Gokhan Mumcu, Jae-Young Chung and Stylianos Dosopoulos; for the memorable time I spent with them. During these years, I had to face some very difficult challenges in my personal life. I could not have survived in these hardships if my wife, Laila, had not constantly supported me. I thank her for everything she did for me. Finally, I thank my parents who always supported and prayed for me. v VITA February 24, 1974 . Born - Sargodha, Pakistan December, 1997 . B.Sc. Electrical Engineering University of Engg. & Technology, Lahore, Pakistan December, 2001 . M.S. Electrical Engineering Oklahoma State University Stillwater, OK February, 1998 - July, 2001 . Assistant Manager R & D, Advanced Engineering Research Orga- nization - Pakistan January, 2002 - July, 2004 . Graduate Research Assistant, Oklahoma State University Stillwater, OK. October, 2004 - present . Graduate Research Assistant, Ohio State University Columbus, OH. PUBLICATIONS Research Publications Z. A. Khan, C. F. Bunting and M. D. Deshpande, “Shielding Effectiveness of Metallic Enclosures at Oblique Incidence and Arbitrary Polarizations.” IEEE Trans. Electro- magnet. Compat., vol. 47, no. 1, pp. 112-122, Feb. 2005. V. Rajamani, C. F. Bunting and M. D. Deshpande and Z. A. Khan, “Validation of Modal/MoM in Shielding Effectiveness Studies of Rectangular Enclosures with Apertures and a Preliminary Investigation of the Input Impedance of a Wire located inside the Cavity for Varying Positions.” IEEE Trans. Electromagnet. Compat., vol. 48, no. 2, pp 348-353, May 2006. vi Z. A. Khan, Y. Bayram and J. L. Volakis, “EMI/EMC Measurements and Simulations for Cables and PCBs enclosed within Metallic Enclosures,” submitted to IEEE Trans. Electromagnet. Compat., Z. A. Khan, Y. Bayram and J. L. Volakis, “Hybrid S-parameters Analysis of PCBs and Cables subject to Non-Plane Wave Illuminations.” IEEE APS International Symposium, 10-15 June 2007. Z. A. Khan, Y. Bayram and J. L. Volakis, “An Integrated Hybrid Solver and Mea- surements for EMI/EMC Analysis of Cables and PCBs Enclosed within Metallic Structures.” IEEE EMC International Symposium, vol. 2, pp. 534-538, 14-18 August 2006. Z. A. Khan, J. L. Volakis, “Experimental and Analytical Study of EMC/EMI effects on PCBs and Cables enclosed within Metallic Structures.” IEEE APS International Symposium, pp. 49-52, 9-14 July 2006. Z. A. Khan, Y. Bayram and J. L. Volakis, “Experimental Study of Electromagnetic Interference (EMI) on PCBs and Cables enclosed in Complex Structures.” National Radio Science Meeting, 4-7 January 2006. Y. Bayram, Z. A. Khan and J. L. Volakis, “Experimental and Theoretical Study of Digital Circuits Subject to Electromagnetic Interference,” URSI Boulder Meeting, January 2005 Z. A. Khan, C. F. Bunting, “Shielding Effectiveness Studies of Rectangular En- closures with Apertures against EM Fields with Arbitrary Angles of Incidence and Polarizations,” IEEE EMC International Symposium, vol. 1, pp. 209-212, 18-22 August 2003. Z. A. Khan, Shih-Pin Yu and C. F. Bunting, “Statistical Shielding Effectiveness - a Modal/Moment Method Approach to Characterize the Average Shielding Effective- ness Over a Wide Frequency Range including Resonances,” IEEE EMC International Symposium, vol. 2, pp. 532-536, 18-22 August 2003. vii FIELDS OF STUDY Major Field: Electrical and Computer Engineering Studies in: EMI/EMC Analysis of Mixed Signal Circuits Professor John L. Volakis EMI/EMC Analysis of Shielding Enclosures Dr. Charles F. Bunting viii TABLE OF CONTENTS Page Abstract . ii Dedication . iv Acknowledgments . v Vita . vi List of Figures . xii Chapters: 1. EMI/EMC Analysis of Electronic Systems . 1 1.1 Introduction and motivation . 1 1.2 Challenges in EMI/EMC analysis of electronic systems . 2 1.3 Mixed signal EMI/EMC analysis of complex electronic systems using a decomposition approach . 3 1.4 Hybrid S-matrix approach for concurrent on/off board EMI/EMC analysis of electronic systems . 4 1.5 Contributions of this dissertation . 6 1.6 Dissertation layout . 6 2. Hybrid S-Parameters for External Plane Wave Excitation of Electronic Circuits . 7 2.1 Hybrid S-matrix Approach . 9 2.2 Derivation of the hybrid S-matrix . 12 2.2.1 Decomposition of the induced transmission line voltage . 12 2.2.2 Extracting VTL and Vforced from Vtotal ............ 14 ix 2.2.3 Incorporating VTL into S-parameters . 15 2.2.4 Calculating the hybrid S-parameters {HS} ......... 16 2.2.5 Algorithm for calculating the hybrid S-matrix . 18 2.3 Plane wave coupling to non-uniform transmission lines . 22 2.3.1 Plane wave coupling to PCBs with connecting planar wires 24 2.3.2 Plane wave coupling to PCBs with connecting vertical wires 28 2.4 Hybrid S-matrix for PCBs and wires enclosed by cavities . 29 2.4.1 Rectangular cavity enclosing a PCB with connecting planar wires . 29 2.4.2 PCB connected with vertical wires and enclosed by a rectan- gular cavity . 36 2.4.3 PCB connected to oblique wires and enclosed by a rectangu- lar cavity . 38 2.5 Conclusions . 38 3. Hybrid S-matrix Approach for Non plane wave EMI Excitations . 42 3.1 A spectral domain approach for extracting TL and forced modes from the EMI induced voltages on a transmission line . 45 3.1.1 Bandwidth approximation of the induced forced modes . 48 3.1.2 Algorithm for extracting the hybrid S-matrix for near-zone EMI excitations . 49 3.2 Validation Study . 50 3.2.1 Multi-layered PCB exposed to EMI from a near zone wire . 51 3.2.2 Enclosed PCB exposed to EMI from a near zone source . 56 3.3 Conclusions . 57 4. Experimental Validation of the Hybrid S-matrix Approach for Complex Structures . 59 4.1 Measurement setup: Description of cavities, PCB and the field sens- ing probe . 61 4.2 EMI coupling onto enclosed cables via apertures and penetrating wires 64 4.2.1 Field penetration through apertures into the empty multi- section enclosure . 65 4.2.2 EMI coupling onto enclosed cables via apertures and pene- trating wires: . 65 4.3 Validation of the scattering matrix approach for EMI/EMC analysis of PCBs enclosed by multi-cavity structures . 70 4.3.1 EMI coupling to PCB traces enclosed by multi-cavity structures 70 4.4 Conclusions of the experimental study . 74 x 5. Conclusions and Future Work . 76 Appendices: A. Agrawal’s Coupling Method .
Load more

Recommended publications
  • Jim James - of My Morning Jacket - to Perform with Louisville Orchestra
    For Immediate Release Media Contact: Heather O'Mara 502.585.9408 | [email protected] JIM JAMES - OF MY MORNING JACKET - TO PERFORM WITH LOUISVILLE ORCHESTRA Louisville, KY (9.07.2017)…The Louisville Orchestra is delighted to announce that Jim James will perform with the Louisville Orchestra on Saturday, April 7, 2018 at 8PM at the Kentucky Center. Scheduled as part of the Orchestra's "Classics Series" sponsored by Brown-Forman, the concert, titled "Kentucky Classics," was already announced and is currently on sale. James will perform with the orchestra in his original songs orchestrated by LO Music Director, Teddy Abrams. The two have hoped to collaborate for years in an orchestral performance. The concert on April 7, 2018, also features the orchestra performing a Louisville premiere of "Natural History" by Michael Gordon under the direction of Teddy Abrams. The piece, written to commemorate the 100th Anniversary of the United States National Parks Service, honors the beauty and grandeur of the American National Parks. A selection from the 2017 Grawemeyer Composition First Place Award winning work "Play" by Andrew Norman will also be performed by the Orchestra. Tickets are $58 to $27 and are available at the only authorized LO ticket vendor: Kentucky Center Ticket Office (501 W. Main, Louisville) by calling 502.584.7777 or 800.775.7777 or online at KentuckyCenter.org. Concert details are available at LouisvilleOrchestra.org. LOUISVILLE ORCHESTRA :: PLAY: FESTIVAL OF AMERICAN MUSIC 1 SAT 07 APR 2018 | 8PM | Kentucky Center Jim James, guest artist Teddy Abrams, conductor JULIA WOLF: riSE and fly ANDREW NORMAN: Play, Level 1 JAMES/ABRAMS: Song Cycle with Jim James MICHAEL GORDON: Natural History JIM JAMES Native Louisvillian, Jim James has spent the better part of almost two decades as the lead singer, songwriter and multi-instrumentalist of My Morning Jacket.
    [Show full text]
  • MY MORNING JACKET the Whole Record Went
    JUNE 2011 ISSUE MMUSICMAG.COM JUNE 2011 ISSUE MMUSICMAG.COM Q&A if anything our friendship is stronger and had a lot of things going on in my personal a space work that isn’t normally used for musically we’re stronger. life at the time, so I didn’t have the emotional recording bands. He saw that as a challenge real estate to pressure myself to deliver the instead of a limitation to the process. So it How does Jim bring in songs? most amazing bass track ever. That gave was really like seven people at a Boy Scout Sometimes they come fully formed, other me some freedom, in a strange kind of way. camp or a lock-in where you’re just there times there’s just the sketch of a song. But “The Day Is Coming” was the toughest to kick back. “Circuital” was like that, with just a few for Patrick and me, because there’s so parts intact. The fi ve of us hammered it out much space in the song. It’s mostly drums, What surprised you about the results from there. His process is all over the map. bass and vocal, and it was the only song of the whole process? It can be completed songs or sketches or that took multiple days. While it wasn’t evident when we were just a riff. If there are 12 to 20 new song sequencing the album, I found that the ideas, we’ll listen to them on our own for What basses did you use? journey, the musical story arc played out a few months, then get together and discuss It was all Fender Precision bass, except for in the songs, was one that I desperately which ones we’re really excited about “Wonderful,” where I used an upright.
    [Show full text]
  • 2012 Twilight Concert Series Continues Tradition Of
    sUMMER 2012 VOLUME 28 NUMBER 3 ART BARN AND FINCH LANE GALLERY | THE NEWSLETTER OF THE SALT LAKE CITY ARTS COUNCIL 2012 TWILIGHT CONCERT SERIES TABLE OF CONTENTS Click story below to go directly to it. CONTINUES TRADITION OF MUSICAL EXCELLENCE The Salt Lake City Arts Council is pleased to announce the 2012 Twilight Concert Series as it returns to Pioneer Park with another amazing line up. This year marks the 25th Twilight Concert Series anniversary of the series, which will run Thursday evenings, July 5 through August 30. Mixed Media Exhibits in June Featured performing artists include Beach House, Raphael Saadiq, My Morning Jacket, Passion Pit, Iron and Wine and COMMON. New Exhibition Season Announced The Twilight concerts have become an iconic event shaping the cultural landscape of Baddley & Wing Exhibit in August Salt Lake City. Last year, each concert averaged 33,000 visitors and saw tremendous success in its second year at Pioneer Park. As the popularity of the Twilight Concert Art at Pioneer Precinct Series has grown, so has the cost associated with its production. In order to sustain success and continue making improvements to this popular event, the Salt Lake City City’s Public Art Program Arts Council will now be charging a small admission fee of $5 per concert. Season passes Artist-In-The-Classroom Spotlight and individual tickets will be available online starting June 1 at 10:00 a.m. via the local ticketing agency, www.24tix.com. Additionally, physical pre-sale tickets will be available Brown Bag Concert Series Begins at all Graywhale locations throughout the valley.
    [Show full text]
  • National Academy of Recording Arts & Sciences
    NATIONAL ACADEMY OF RECORDING ARTS & SCIENCES, INC.® FINAL NOMINATIONS LIST THE NATIONAL ACADEMY OF RECORDING ARTS & SCIENCES, INC. Final Nominations List 54th Annual GRAMMY® Awards For recordings released during the Eligibility Year October 1, 2010 through September 30, 2011 Note: More or less than 5 nominations in a category is the result of ties. General Field Category 1 Category 2 Record Of The Year Album Of The Year Award to the Artist and to the Producer(s), Recording Engineer(s) Award to the Artist(s) and to the Album Producer(s), Recording and/or Mixer(s), if other than the artist. Engineer(s) and/or Mixer(s) & Mastering Engineer(s), if other than the 1. ROLLING IN THE DEEP artist. Adele 1. 21 Paul Epworth, producer; Tom Elmhirst & Mark Rankin, Adele engineers/mixers Jim Abbiss, Adele, Paul Epworth, Rick Rubin, Fraser T. Smith, Track from: 21 Ryan Tedder & Dan Wilson, producers; Jim Abbiss, Philip Allen, [XL Recordings/Columbia Records] Beatriz Artola, Ian Dowling, Tom Elmhirst, Greg Fidelman, Dan 2. HOLOCENE Parry, Steve Price, Mark Rankin, Andrew Scheps, Fraser T. Smith Bon Iver & Ryan Tedder, engineers/mixers; Tom Coyne, mastering Justin Vernon, producer; Brian Joseph & Justin Vernon, engineer engineers/mixers [XL Recordings/Columbia Records] Track from: Bon Iver 2. WASTING LIGHT [Jagjaguwar] Foo Fighters 3. GRENADE Butch Vig, producer; James Brown & Alan Moulder, Bruno Mars engineers/mixers; Joe LaPorta & Emily Lazar, mastering The Smeezingtons, producers; Ari Levine & Manny Marroquin, engineers engineers/mixers [RCA Records/
    [Show full text]
  • My Morning Jacket
    For Immediate Release 13 March 2017 Contact: Jodi Joseph Director of Communications 413.664.4481 x8113 [email protected] My Morning Jacket Critically acclaimed rockers in North Adams, Mass. on August 12 With Pennsylvania rockers The Districts NORTH ADAMS, MASSACHUSETTS — My Morning Jacket has built a reputation as a group who consistently challenges the paradigms in which they are placed. From psychedelic to soul to classic rock and roll, My Morning Jacket’s range remains steadfast throughout the band’s 16 years. The Louisville quintet released the first of 7 albums in 1999 with their last three, 2008’s Evil Urges, 2011’s Circuital, and 2015’s The Waterfall, each receiving Grammy nominations — the latter debuting at number 5 on the Billboard 200 chart. The Waterfall, recorded in northern California’s Stinson Beach, is steeped in the spirit of where it was crafted. The band features Jim James (singer/songwriter, guitar), Tom Blankenship (bass), Patrick Hallahan (drums), Carl Broemel (guitar, pedal steel, saxophone, vox), and Bo Koster (keyboards, vox). Known as one of the most engaging, eclectic, and electric bands, in no small part due to Jim James’ other-worldly vocals, they’ve become legendary for their live performances. Joined by Pennsylvania rock outfit The Districts, My Morning Jacket brings it to the North Adams stage on Saturday, August 12, at 7:30pm. Throughout its almost two-decade-long career, My Morning Jacket has always had a healthy respect for living in the moment and the inherent mysteries of creativity. After spending almost four years apart, the band reunited at the California coast to record The Waterfall, which touches on aspects of the band’s celebrated past while pushing forward with a giddy assurance.
    [Show full text]
  • Record of the Year Album of the Year Song of the Year
    RECORD OF THE YEAR Doo-Wops & Hooligans Rolling In The Deep Bruno Mars Adele Adkins & Paul Epworth, Rolling In The Deep [Elektra] songwriters (Adele) Adele Track from: 21 Track from: 21 Loud [XL Recordings/Columbia Records] [XL Recordings/Columbia Records] Rihanna [Def Jam] BEST NEW ARTIST Holocene Bon Iver SONG OF THE YEAR The Band Perry Track from: Bon Iver [Jagjaguwar] All Of The Lights Bon Iver Jeff Bhasker, Stacy Ferguson, Malik Grenade Jones, Warren Trotter & Kanye West, J. Cole Bruno Mars songwriters (Kanye West, Rihanna, Track from: Doo-Wops & Hooligans Kid Cudi & Fergie) Nicki Minaj [Elektra] Track from: My Beautiful Dark Twisted Fantasy Skrillex The Cave [Roc-A-Fella] Mumford & Sons BEST POP SOLO Track from: Sigh No More The Cave PERFORMANCE [Glassnote Records] Ted Dwane, Ben Lovett, Marcus Mumford & Country Winston, Someone Like You Firework songwriters (Mumford & Sons) Adele Katy Perry Track from: Sigh No More Track from: 21 Track from: Teenage Dream [Glassnote Records] [XL Recordings/Columbia Records] [Capitol] Grenade Yoü And I ALBUM OF THE YEAR Brody Brown, Claude Kelly, Philip Lady Gaga Lawrence, Ari Levine, Bruno Mars & Track from: Born This Way 21 Andrew Wyatt, songwriters (Bruno [Streamline/Interscope/Kon Live] Adele Mars) [XL Recordings/Columbia Records] Track from: Doo-Wops & Hooligans Grenade [Elektra] Bruno Mars Wasting Light Track from: Doo-Wops & Hooligans Foo Fighters Holocene [Elektra] [RCA Records/Roswell Records] Justin Vernon, songwriter (Bon Iver) Track from: Bon Iver Born This Way [Jagjaguwar] Lady Gaga [Streamline/Interscope/Kon Live] page 1 Firework The Road From Memphis Call Your Girlfriend Katy Perry Booker T. Jones Robyn Track from: Teenage Dream [Anti Records] Track from: Body Talk Pt.
    [Show full text]
  • June 9, 2011 Dear Members of the Kentucky Congressional
    June 9, 2011 Dear Members of the Kentucky Congressional Delegation: We are writing to you as members of My Morning Jacket and as proud citizens of Kentucky. As musicians, we are concerned about a number of issues that we, and other contributors to Kentucky’s artistic economy, are currently confronting. In order to continue producing original creative work, our community requires access to the Internet and a supportive broadcast media. We are concerned with recent Congressional activity around these crucial platforms and urge you to consider the impact of your decisions on the creative sector. By way of introduction, we are a musical group formed in 1998 in Louisville, Kentucky. We released our first album the following year. In the ensuing years, our music has been featured in films and television and we have toured the world and played to crowds numbering in the tens of thousands. In May, we released our sixth full-length studio album, Circuital. We are happy to report we just learned the album debuted number 5 on the Billboard album charts. To celebrate the release, we have been playing a series of shows around the country and donating a portion of our ticket sales to local charities. We started as a small local band in Louisville and have grown into a successful small business that employs a dozens of people and allows us to tour and sell records throughout the world. Our ability to build a fan base at home and abroad was – and still is – dependent to a large degree on the Internet. The Internet has changed how musicians connect to their listeners – from online stores, to streaming sites like Pandora and Rhapsody, to social networking sites like Facebook and Twitter.
    [Show full text]
  • NSO Pops Collaborates with My Morning Jacket's Jim James in "The
    Updates on Our Temporary Closure NSO Pops collaborates with My Morning Jacket’s Jim James in "The Order of Nature: A Song Cycle" Wednesday September at pm at the Kennedy Center Concert Hall PDF WASHINGTONJim James founder and frontman of indierock band My Morning Jacket joins the National Symphony Orchestra NSO Pops for live performance of his upcoming new album Led by Music Director of the Louisville Orchestra Teddy Abrams the concert takes place on Wednesday September at pm in the Kennedy Center Concert Hall The concert features James and the NSO in The Order of Nature A Song Cycle along with local chorus The Capital Hearings The first half of the evening spotlights the NSO in Mason Bates’s “Warehouse Medicine” from The BSides Julia Wolfe’s Big Beautiful Dark and Scary and Copland’s Four Dance Episodes from Rodeo This concert coincides with the upcoming album release of James and Abrams’s collaboration on Decca Gold Ticket buyers to this performance will be offered an exclusive opportunity to prepurchase James’s new album and will also receive a signed poster with / their order Ticket Information Tickets from are available at the Kennedy Center Box Office online at kennedy centerorg and via phone through Instant Charge tollfree at For all other ticketrelated customer service inquires call the Advance Sales Box Office at ABOUT JIM JAMES Jim James has spent the better part of almost two decades as the lead singer songwriter and multiinstrumentalist of My Morning Jacket Through seven studio albums My Morning Jacket has grown into
    [Show full text]
  • Just Announced the Americanarama Festival of Music with Performances by Bob Dylan and His Band, Wilco, My Morning Jacket and Mo
    JUST ANNOUNCED THE AMERICANARAMA FESTIVAL OF MUSIC WITH PERFORMANCES BY BOB DYLAN AND HIS BAND, WILCO, MY MORNING JACKET AND MORE 26 Date Summer Tour Launches June 26 in West Palm Beach, FL Ryan Bingham, Richard Thompson Electric Trio to Appear on Select Dates LOS ANGELES, CA (April 22, 2013) Just announced on bobdylan.com, the AmericanaramA Festival of Music will feature performances by Bob Dylan and His Band , Wilco and My Morning Jacket, as well as Ryan Bingham, the Richard Thompson Electric Trio and more on select dates. The AmericanaramA Festival of Music will begin June 26 at Cruzan Amphitheatre in West Palm Beach, FL and will cross the country with 26 tour stops hitting everywhere from Chicago to Los Angeles, New York to San Francisco, Detroit to Philadelphia, and lots of stops in between. Tickets go on sale to the public in select market beginning April 27th. For tickets and additional information visit Ticketmaster.com and band websites - BobDylan.com, WilcoWorld.net, MyMorningJacket.com Members of the Bob Dylan, Wilco, and My Morning Jacket fanclubs will have first access to presale tickets beginning at least three days prior to the public on sale for each tour date. For more information on the fanclubs and presale tickets, visit BobDylan.com, WilcoWorld.net, and MyMorningJacket.com . Citi® cardmembers will have access to presale tickets beginning Thursday, April 25 at 10AM local time through Citi's Private Pass® Program. For complete presale details visit www.citiprivatepass.com. Tempest, Bob Dylan's 35th studio album , was released by Columbia Records in September 2012.
    [Show full text]
  • Play Sampler Cd
    ADVERTORIAL APRIL_MAY 2015 RELIX CD SAMPLER / LISTEN AT RELIX.COM/APRIL_MAY2015CD My Morning Jacket Walsher Clemons The Sleeperz “Circuital” “The Funk” “Crossfire” 1 From the live album One Big Holiday 6 From the album Dancing & Praying 12 From the EP The Sleeperz ATO Self-released Shopjamz Music Publishing My Morning Jacket formed at the tail end of the 1990s, Walsher Clemons is a powerful rock-funk-jamband based Formed in early 2014, this Canadian-blues-inspired rock when Jim James’ group Month Of Sundays folded. He began in Chicago. The group formed in 2012 and has since melted band has a fresh-yet-nostalgic sound. Coming off of their recording new songs with ex-members of local rockers Win- many faces at some of Chicago’s premiere venues, including first independently released EP, The Sleeperz have already ter Death Club and the group took shape, drawing on their Double Door and House of Blues. graced many legendary stages in Toronto with much bigger rich knowledge of classic rock, country, soul and psychede- www.walsherclemons.com aspirations for the future. Download The Sleeperz debut EP lia, and spinning these influences into fresh, life-affirming on iTunes today! You won’t be disappointed. rock ‘n’ roll and aching, haunting balladry. Their brand new www.reverbnation.com/thesleeperz. album, The Waterfall (ATO), takes their music one step CBDB further in a brilliant follow up to 2011’s Circuital. “Stuffed Avocados” www.mymorningjacket.com 7 Driftwood Gypsy From the album Joyfunk Is Dead Self-released “Love Games” 13 From the album Driftwood Gypsy CBDB is a progressive-rock jamband from Tuscaloosa, The Ballroom Thieves Self-released Ala., whose stock is rising fast.
    [Show full text]
  • Backtracks $9.99
    Wooden Nickel -----------------------------------------Spins --------------------------------------- CD of the Week My Morning Jacket $9.99 Circuital BACKTRACKS Steve Miller Band $11.99 To be honest with you, dear reader, I feel it necessary to admit that I had Sailor (1968) to look up the exact definition of the word “circuital,” the title of Louisville Forget all of the Steve Miller Band rockers My Morning Jacket’s sixth that you hear in heavy rotation on local studio album and first since 2008’s radio stations. Sailor, the band’s second ballsy misstep, Evil Urges. The word album, is a real treasure. means, basically, “a circle form,” or I know you’ve heard “Living in the in this case, “to come full circle.” The implication is that, with this U.S.A.,” as it is packaged on a couple record, the band is returning to where it came from – back to the of Miller’s greatest hits releases (he has seven of them). But this light-as-a-feather folk rock that feels as if it may have been recorded album has nine other remarkable tracks. in heaven, with angels plucking strings and God spilling vocals. As Opening with “Song for Our Ancestors,” the album imme- good as that last sentence fragment may sound, Circuital isn’t quite diately transports you back to 1968. If you told someone they’re the return-to-roots sound of The Tennessee Fire and At Dawn that not hearing Pink Floyd, you might get into an argument. It’s not 311 the MMJ crew has implied. I suppose that, when compared to the the best way to open an album, but the psychedelic vibe will at Universal Pulse strange, scattershot sound of the above-mentioned Evil Urges, it may least grab your attention.
    [Show full text]
  • The Kelvin - Helmholtz Instability on the Kronian Magnetopause
    The Kelvin - Helmholtz Instability On The Kronian Magnetopause Thesis submitted for the degree of Doctor of Philosophy at Imperial College London ~2014~ Jack Cutler Space and Atmospheric Physics research group, Department of Physics, Imperial College London Supervisors: Dr Elizabeth Lucek Prof. Michele Dougherty Abstract It is widely accepted that magnetic reconnection is the most efficient means of transporting solar wind plasma across the terrestrial magnetopause. However, at Saturn’s magnetopause, conditions for reconnection are consideraBly different to those at the Earth, and reconnection seems to play a much less important role in energy transport across the magnetopause at Saturn than at the Earth. Therefore, other transport mechanisms, such as diffusion and ‘viscous’ mechanisms Become relatively more important. The Kelvin-Helmholtz (K-H) instaBility is a prime candidate for such an alternative mechanism, as first suggested By Dungey (1955). The K-H instaBility has Been the suBject of numerous studies at the Earth, But its operation and impact at Saturn is much less well understood. This thesis Builds on work undertaken by previous authors to identify K-H waves on the Kronian magnetopause. These waves were found to exist on the dusk flank magnetopause, which has previously Been thought to Be staBle to the instaBility due to a reduced flow shear Between magnetospheric and magnetosheath plasma compared to the dawn flank. This asymmetry is due to the sense of magnetospheric (sub)corotation with the planet. The frequency with which the magnetopause is seen to Become K-H unstaBle as a function of local time is then investigated, and surprisingly, the dusk flank is found to Be as unstaBle as the dawn flank.
    [Show full text]