(12) United States Patent (10) Patent No.: US 9,000,985 B2 Puente Baliarda Et Al
USOO9000985B2 (12) United States Patent (10) Patent No.: US 9,000,985 B2 Puente Baliarda et al. (45) Date of Patent: *Apr. 7, 2015 (54) MULTILEVELANTENNAE (56) References Cited (71) Applicant: Fractus, S.A., Barcelona (ES) U.S. PATENT DOCUMENTS (72) Inventors: Carles Puente Baliarda, Sant Cugat del Valles (ES); Carmen Borja Borau. 621,455 A 3, 1899 Hess Barcelona (ES); Jaume Anguera Pros, 646,850 A 4/1900 Lindemyer Vinaros (ES); Jordi Soler Castany, (Continued) Mataro (ES) FOREIGN PATENT DOCUMENTS (73) Assignee: Fractus, S.A., Barcelona (ES) (*) Notice: Subject to any disclaimer, the term of this AU 24381.99 9, 1999 patent is extended or adjusted under 35 CA 2416437 1, 2002 U.S.C. 154(b) by 156 days. (Continued) This patent is Subject to a terminal dis OTHER PUBLICATIONS claimer. The Glenn L. Martin Company Antennas for USAF B-57 series (21) Appl. No.: 13/732,750 bombers. Symposium on the USAF antenna research and develop ment program, 2nd. Oct. 19, 1952. Filed: Jan. 2, 2013 (22) (Continued) (65) Prior Publication Data US 2013/O187827 A1 Jul. 25, 2013 Primary Examiner — Tho G Phan (74) Attorney, Agent, or Firm — Edell, Shapiro and Finnan Related U.S. Application Data LLC (63) Continuation of application No. 13/669,916, filed on (57) ABSTRACT Nov. 6, 2012, now abandoned, which is a continuation An apparatus includes a multi-band antenna element that of application No. 13/411,212, filed on Mar. 2, 2012, operates in at least three frequency bands and includes geo now Pat. No. 8.330,659, which is a continuation of metric elements arranged to define empty spaces in the antenna element to provide at least three winding current (Continued) paths through the antenna element which circumvent the empty spaces, the at least three winding current paths respec (51) Int.
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