Selecting the Right Wifi Antenna for Your Application
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Array Designs for Long-Distance Wireless Power Transmission: State
INVITED PAPER Array Designs for Long-Distance Wireless Power Transmission: State-of-the-Art and Innovative Solutions A review of long-range WPT array techniques is provided with recent advances and future trends. Design techniques for transmitting antennas are developed for optimized array architectures, and synthesis issues of rectenna arrays are detailed with examples and discussions. By Andrea Massa, Member IEEE, Giacomo Oliveri, Member IEEE, Federico Viani, Member IEEE,andPaoloRocca,Member IEEE ABSTRACT | The concept of long-range wireless power trans- the state of the art for long-range wireless power transmis- mission (WPT) has been formulated shortly after the invention sion, highlighting the latest advances and innovative solutions of high power microwave amplifiers. The promise of WPT, as well as envisaging possible future trends of the research in energy transfer over large distances without the need to deploy this area. a wired electrical network, led to the development of landmark successful experiments, and provided the incentive for further KEYWORDS | Array antennas; solar power satellites; wireless research to increase the performances, efficiency, and robust- power transmission (WPT) ness of these technological solutions. In this framework, the key-role and challenges in designing transmitting and receiving antenna arrays able to guarantee high-efficiency power trans- I. INTRODUCTION fer and cost-effective deployment for the WPT system has been Long-range wireless power transmission (WPT) systems soon acknowledged. Nevertheless, owing to its intrinsic com- working in the radio-frequency (RF) range [1]–[5] are plexity, the design of WPT arrays is still an open research field currently gathering a considerable interest (Fig. -
High Gain Isotropic Rectenna Erika Vandelle, Phi Long Doan, Do Hanh Ngan Bui, T.-P
High gain isotropic rectenna Erika Vandelle, Phi Long Doan, Do Hanh Ngan Bui, T.-P. Vuong, Gustavo Ardila, Ke Wu, Simon Hemour To cite this version: Erika Vandelle, Phi Long Doan, Do Hanh Ngan Bui, T.-P. Vuong, Gustavo Ardila, et al.. High gain isotropic rectenna. 2017 IEEE Wireless Power Transfer Conference (WPTC), May 2017, Taipei, Taiwan. pp.54-57, 10.1109/WPT.2017.7953880. hal-01722690 HAL Id: hal-01722690 https://hal.archives-ouvertes.fr/hal-01722690 Submitted on 29 Aug 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. High Gain Isotropic Rectenna E. Vandelle1, P. L. Doan1, D.H.N. Bui1, T.P. Vuong1, G. Ardila1, K. Wu2, S. Hemour3 1 Université Grenoble Alpes, CNRS, Grenoble INP*, IMEP–LAHC, Grenoble, France 2 Polytechnique Montréal, Poly-Grames, Montreal, Quebec, Canada 3 Université de Bordeaux, IMS Bordeaux, Bordeaux Aquitaine INP, Bordeaux, France *Institute of Engineering University of Grenoble Alpes {vandeler, buido, vuongt, ardilarg}@minatec.inpg.fr [email protected] [email protected] [email protected] Abstract— This paper introduces an original strategy to step up the capacity of ambient RF energy harvesters. -
Arrays: the Two-Element Array
LECTURE 13: LINEAR ARRAY THEORY - PART I (Linear arrays: the two-element array. N-element array with uniform amplitude and spacing. Broad-side array. End-fire array. Phased array.) 1. Introduction Usually the radiation patterns of single-element antennas are relatively wide, i.e., they have relatively low directivity. In long distance communications, antennas with high directivity are often required. Such antennas are possible to construct by enlarging the dimensions of the radiating aperture (size much larger than ). This approach, however, may lead to the appearance of multiple side lobes. Besides, the antenna is usually large and difficult to fabricate. Another way to increase the electrical size of an antenna is to construct it as an assembly of radiating elements in a proper electrical and geometrical configuration – antenna array. Usually, the array elements are identical. This is not necessary but it is practical and simpler for design and fabrication. The individual elements may be of any type (wire dipoles, loops, apertures, etc.) The total field of an array is a vector superposition of the fields radiated by the individual elements. To provide very directive pattern, it is necessary that the partial fields (generated by the individual elements) interfere constructively in the desired direction and interfere destructively in the remaining space. There are six factors that impact the overall antenna pattern: a) the shape of the array (linear, circular, spherical, rectangular, etc.), b) the size of the array, c) the relative placement of the elements, d) the excitation amplitude of the individual elements, e) the excitation phase of each element, f) the individual pattern of each element. -
Directional Or Omnidirectional Antenna?
TECHNOTE No. 1 Joe Carr's Radio Tech-Notes Directional or Omnidirectional Antenna? Joseph J. Carr Universal Radio Research 6830 Americana Parkway Reynoldsburg, Ohio 43068 1 Directional or Omnidirectional Antenna? Joseph J. Carr Do you need a directional antenna or an omnidirectional antenna? That question is basic for amateur radio operators, shortwave listeners and scanner operators. The answer is simple: It depends. I would like to give you a simple rule for all situations, but that is not possible. With radio antennas, the "global solution" is rarely the correct solution for all users. In this paper you will find a discussion of the issues involved so that you can make an informed decision on the antenna type that meets most of your needs. But first, let's take a look at what we mean by "directional" and "omnidirectional." Antenna Patterns Radio antennas produce a three dimensional radiation pattern, but for purposes of this discussion we will consider only the azimuthal pattern. This pattern is as seen from a "bird's eye" view above the antenna. In the discussions below we will assume four different signals (A, B, C, D) arriving from different directions. In actual situations, of course, the signals will arrive from any direction, but we need to keep our discussion simplified. Omnidirectional Antennas. The omnidirectional antenna radiates or receives equally well in all directions. It is also called the "non-directional" antenna because it does not favor any particular direction. Figure 1 shows the pattern for an omnidirectional antenna, with the four cardinal signals. This type of pattern is commonly associated with verticals, ground planes and other antenna types in which the radiator element is vertical with respect to the Earth's surface. -
Antenna Characteristics
Antenna Characteristics Team Cygnus Shivam Garg Sheena Agarwal Prince Tiwari Gunjan Bansal Adikeshav C. Outline • Introduction • Characteristics • Methodology • Observations • Inferences Antenna • An antenna is a device designed to radiate and/or receive electromagnetic waves in a prescribed manner. A Yagi Uda antenna meant for home use Schematic diagram of a antenna The current distributions on the antennas produce the radiation. Usually, these current distributions are excited by transmission lines or waveguides. Types Of Antennas Wire Antennas Aperture antennas Micro strip Antennas Reflector antennas Antenna Basics Radiation Pattern • The distribution of radiated energy from an antenna over a surface of constant radius centered upon the antenna as a function of directional angles from antenna . Reciprocity Theorem • The reception pattern of an antenna is identical to its radiation (transmission) pattern. This is a general rule, known as the reciprocity theorem. • A complete radiation pattern is three dimensional function. • a pair of two-dimensional patterns are usually sufficient to characterize the directional properties of an antenna. • In most cases, the two radiation patterns are measured in planes which are perpendicular to each other. • A plane parallel to the electric field is chosen as one plane and the plane parallel to the magnetic field as the other. The two planes are called the E-plane and the H-plane, respectively. 15 E-plane (y-z or θ) and H-plane (x-y or φ) of a Dipole Antenna Gain • Some antennas are highly directional • Directional antenna is an antenna, which radiates (or receives) much more power in (or from) some directions than in (or from) others. -
Antennacraft Hookup
The Antennacraft Mini-State Directional, Rotating Antenna provides excellent reception of VHF/UHF TV channels in most viewing locations. The UV protective housing is made of impact-resistant filled co-polymer, making the exterior resistant to weathering. It features both AC and DC operation and is excellent for use on recreational vehicles 5/5(1). AntennaCraft 5MS RV Home Marine Amplified Antenna OMNIDIRECTIONAL UHF VHF. $ +$ shipping. Make Offer - AntennaCraft 5MS RV Home Marine Amplified Antenna OMNIDIRECTIONAL UHF VHF. Antennacraft HDTV Indoor Ultrathin Amplified Omniidirectional Antenna $ Product Reviews for AntennaCraft High Gain VHF/UHF TV Antenna Pre-Amp (10G) Product reviews help other customers decide which product to purchase, where the best deals are, and your get a sense of what to expect with the product.5/5(4). Manufacturers of TV antennas, amplifiers, and related electronic accessories. Includes product listing, support and contact information. Nov 16, · How to Hook Up a TV Antenna. This wikiHow teaches you how to select and set up an antenna for your TV. Determine your television's antenna connector type. Virtually every TV has an antenna input on the back or side; this is where you'll Views: M. Jun 01, · THE HAPPY SATELLITE NERD EPISODE The Antenna I use! It had 16 position settings it is amplified and works well. I can receive channels from . Related Manuals for Antennacraft Antenna AntennaCraft Mini State 5MS Manual. Amplified uhf/vhf indoor/outdoor tv antenna (8 pages) Antenna AntennaCraft HDX Quick Start Manual. Indoor/outdoor hdtv directional antenna (4 pages) Antenna AntennaCraft . Antennacraft Specification Sheet Model Number:5MS General Channels/Frequency:2 - 69 75 pHYPhysical Maximum Width (in) V ( w/ mast bracket) Turning Radius (in) 22 x 21 x 3 Antenna Performance Average Gain Over Reference Dipole (dB): Low Band: Half-Power Beamwidth. -
Design and Analysis of Microstrip Patch Antenna Arrays
Design and Analysis of Microstrip Patch Antenna Arrays Ahmed Fatthi Alsager This thesis comprises 30 ECTS credits and is a compulsory part in the Master of Science with a Major in Electrical Engineering– Communication and Signal processing. Thesis No. 1/2011 Design and Analysis of Microstrip Patch Antenna Arrays Ahmed Fatthi Alsager, [email protected] Master thesis Subject Category: Electrical Engineering– Communication and Signal processing University College of Borås School of Engineering SE‐501 90 BORÅS Telephone +46 033 435 4640 Examiner: Samir Al‐mulla, Samir.al‐[email protected] Supervisor: Samir Al‐mulla Supervisor, address: University College of Borås SE‐501 90 BORÅS Date: 2011 January Keywords: Antenna, Microstrip Antenna, Array 2 To My Parents 3 ACKNOWLEGEMENTS I would like to express my sincere gratitude to the School of Engineering in the University of Borås for the effective contribution in carrying out this thesis. My deepest appreciation is due to my teacher and supervisor Dr. Samir Al-Mulla. I would like also to thank Mr. Tomas Södergren for the assistance and support he offered to me. I would like to mention the significant help I have got from: Holders Technology Cogra Pro AB Technical Research Institute of Sweden SP I am very grateful to them for supplying the materials, manufacturing the antennas, and testing them. My heartiest thanks and deepest appreciation is due to my parents, my wife, and my brothers and sisters for standing beside me, encouraging and supporting me all the time I have been working on this thesis. Thanks to all those who assisted me in all terms and helped me to bring out this work. -
Proceedings, ITC/USA
International Telemetering Conference Proceedings, Volume 18 (1982) Item Type text; Proceedings Publisher International Foundation for Telemetering Journal International Telemetering Conference Proceedings Rights Copyright © International Foundation for Telemetering Download date 09/10/2021 04:34:04 Link to Item http://hdl.handle.net/10150/582013 INTERNATIONAL TELEMETERING CONFERENCE SEPTEMBER 28, 29, 30, 1982 SPONSORED BY INTERNATIONAL FOUNDATION FOR TELEMETERING CO-TECHNICAL SPONSOR INSTRUMENT SOCIETY OF AMERICA Sheraton Harbor Island Hotel and Convention Center San Diego, California VOLUME XVIII 1982 1982 INTERNATIONAL TELEMETERING CONFERENCE Ed Bejarano, General Chairman Robert Klessig, Vice Chairman Norman F. Lantz, Technical Program Chairman Gary Davis, Vice Technical Chairman Alain Hackstaff, Exhibits Chairman Warren Price, Publicity Chairman Burton E. Norman, Finance Chairman Francis X. Byrnes, Local Arrangements Chairman Fran LaPierre, Registration Chairman Bruce Thyden, Golf Tournament Technical Program Committee: Lee H. Glass Karen L. Billings BOARD, INTERNATIONAL FOUNDATION FOR TELEMETERING H. F. Pruss, President W. W. Hammond, Vice-President D. R. Andelin, Asst. Secretary & Treasurer R. D. Bently, Secretary B. Chin, Director F. R. Gerardi, Director T. J. Hoban, Director R. Klessig, Director W. A. Richardson, Director C. Weaver, Director 1982 ITC/USA Program Chairman Norman F. Lantz Program Chairman The conference theme this year is “Systems and Technology in the ’80’s: Expanding Horizons.” It was selected to continue the theme which began with ITC/USA ’80. The technological advances that have occurred over the past decade have, and continue to have, a profound affect on the nature and applications of telemetry systems. It is felt that the papers and tutorials which make up this year’s conference will provide you with some insight into these “Expanding Horizons.” The technical exhibits compliment the technical sessions. -
The Development of HF Broadcast Antennas
Development of HF Broadcast Antennas FEATURES FEATURES Development of HF Broadcast Antennas the 50% power loss, but made the Rhombic fre - Free Europe and Radio Liberty sites. quency-sensitive, consequently losing the wide- Rhombic antennas are no longer recommend - The Development of HF bandwidth feature. The available bandwidth ed for HF broadcasting as the main lobe is nar - depends on the length of the wire and, using dif - row in both horizontal and vertical planes which ferent lengths of transmission line, it is possible to can result in the required service area not being Broadcast Antennas access two or three different broadcast bands. reliably covered because of the variations in the A typical rhombic antenna design uses side ionosphere. There are also a large number of lengths of several wavelengths and is at a height side lobes of a size sufficient to cause interfer - Former BBC Senior Transmitter Engineer Dave Porter G4OYX continues the story of the of between 0.5-1.0 λ at the middle of the operat - ence to other broadcasters, and a significant pro - development of HF broadcast antennas from curtain arrays to Allis antennas ing frequency range. portion of the transmitter power is dissipated in the terminating resistance. THE CORNER QUADRANT ANTENNA Post War it was found that if the Rhombic Antenna was stripped down and, instead of the four elements, had just two end-fed half-wave dipoles placed at a right angle to each other (as shown in Fig. 1) the result was a simple cost- effective antenna which had properties similar to the re-entrant Rhombic but with a much smaller footprint. -
Design of a Novel Flat Array Antenna for Radio Communications
MEE10:121 Design of a Novel Flat Array Antenna for Radio Communications Tahir Mehmood Yu Yun This thesis is presented as part of degree of Master of Science in Electrical Engineering Blekinge Institute of Technology Blekinge Institute of Technology School of Electrical Engineering Radio Communication Group. External Supervisor: Jun Cao, Blekinge Antenna Technology Sweden AB. Internal Supervisor: Prof. Dr. Hans-Jürgen Zepernick Examiner: Prof. Dr. Hans-Jürgen Zepernick ABSTRACT In mobile microwave communication, reflector antennas have widely been used for very long time. Flat array antennas which have very rigid structure are being used in satellite communication, radar and airborne applications. These antennas are relatively smart in size and have more rigid structure than reflector antennas. The 32×32 elements vertical polarized slotted waveguide flat array antenna is presented in this thesis, The sub-array and feed waveguide network are set up and simulated by 3D-Electromagnetic Software HFSS. This array can have over 4.3% reflection and radiation bandwidth, low side lobe and back lobe. So it has potential application value in radio communication. 0 ACKNOWLEDGMENTS All praises to ALLAH, the cherisher and the sustainer of the universe, the most gracious and the most merciful, who bestowed us with health and abilities to complete this project successfully. This project means to us far more than a Master degree requirement as our knowledge was significantly enhanced during the course of its research and implementation. We are especially thankful to the Faculty and Staff of School of Engineering at the Blekinge Institute of Technology (BTH) Karlskrona, Sweden, who have always been a source of motivation for us and supported us tremendously during this research. -
Manual De Antena Yagi Para Wifi Usb
Manual De Antena Yagi Para Wifi Usb Rebuilt DIY 15 element USB Wifi Yagi antenna vs Cantenna (29). by insAneTunA ANTENA YAGI CASERA PARA WIFI FACIL DE HACER. by marioyrafa. Yagi 2.4GHz 25dbi WiFi RP- SMA Antenna For Wireless Router Outdoor 07:31:11, He comparado esta antena direccional de 25 dbi con una omnidireccional de 9 dbi, M1 Portable 3G WiFi Hotspot IEEE802.11b/g/n 150Mbps RJ45 USB Router Tracking Points & Coupons New User Guide Frequently Asked Questions. ¿Qué necesito para enviar la Red WiFi de mi Casa a otro punto con Garantías Tenda W311M Nano Adaptador USB Inalámbrico N150 2.4GHz Oferta. Tablet WOO Mejorar el WIFI de Android Usando antena USB Internet: consejos para cmo. I'm extremely grateful that I saw a tutorial how to making this type of antenna. no se si. El panel trasero contiene un puerto Ethernet y un USB para grabación(PVR) y MP3, ENVIO GRATIS + WIFI VONETS + FUENTE Receptor Satelite Alta Definicion Entrada de antena, doble euroconector, búsqueda automática y manual de Yagi Triax ofrecen un sólido rendimiento y han sido fabricadas de aluminio. Manual De Antena Yagi Para Wifi Usb Read/Download I tired the pringle can antenna and the Yagi beats it hands down in performance. USB WIFI, preferably with an antenna extension OR a 2.4 GHz device DIY Long Range Directional WiFi USB Antenna Tutorial (AKA Wok Fi) 12:45 My 1.1 Usb Wifi Antenna 'yagi' Wifi Hunter Antena Wifi Motorizada 01:02 Ante wifi creada para antenaswifi.es voipspa. For more de. Wifi Antena Yagi popular é fornecido por fornecedores de sucesso de vendas da El0314 $number dbi 2.4 GHz Wifi antena Yagi WLAN N fêmea para USB. -
Review of Recent Phased Arrays for Millimeter-Wave Wireless Communication
sensors Review Review of Recent Phased Arrays for Millimeter-Wave Wireless Communication Aqeel Hussain Naqvi and Sungjoon Lim * School of Electrical and Electronics Engineering, College of Engineering, Chung-Ang University, 221, Heukseok-Dong, Dongjak-Gu, Seoul 156-756, Korea; [email protected] * Correspondence: [email protected]; Tel.: +82-2-820-5827; Fax: +82-2-812-7431 Received: 27 July 2018; Accepted: 18 September 2018; Published: 21 September 2018 Abstract: Owing to the rapid growth in wireless data traffic, millimeter-wave (mm-wave) communications have shown tremendous promise and are considered an attractive technique in fifth-generation (5G) wireless communication systems. However, to design robust communication systems, it is important to understand the channel dynamics with respect to space and time at these frequencies. Millimeter-wave signals are highly susceptible to blocking, and they have communication limitations owing to their poor signal attenuation compared with microwave signals. Therefore, by employing highly directional antennas, co-channel interference to or from other systems can be alleviated using line-of-sight (LOS) propagation. Because of the ability to shape, switch, or scan the propagating beam, phased arrays play an important role in advanced wireless communication systems. Beam-switching, beam-scanning, and multibeam arrays can be realized at mm-wave frequencies using analog or digital system architectures. This review article presents state-of-the-art phased arrays for mm-wave mobile terminals (MSs) and base stations (BSs), with an emphasis on beamforming arrays. We also discuss challenges and strategies used to address unfavorable path loss and blockage issues related to mm-wave applications, which sets future directions.