US 11,973,270 B2
Flat lens antenna
John W. Schultz, Alpharetta, GA (US); Brian L Petrie, Cumming, GA (US); Crystal L Bethards, Cumming, GA (US); and James G. Maloney, Marietta, GA (US)
Assigned to COMPASS TECHNOLOGY GROUP LLC, Alpharetta, GA (US)
Appl. No. 17/635,206
Filed by Compass Technology Group, LLC, Alpharetta, GA (US)
PCT Filed Aug. 14, 2020, PCT No. PCT/US2020/046528
§ 371(c)(1), (2) Date Feb. 14, 2022,
PCT Pub. No. WO2021/030758, PCT Pub. Date Feb. 18, 2021.
Claims priority of provisional application 62/886,617, filed on Aug. 14, 2019.
Prior Publication US 2022/0278459 A1, Sep. 1, 2022
Int. Cl. H01Q 19/08 (2006.01); H01Q 1/38 (2006.01); H01Q 1/52 (2006.01); H01Q 13/02 (2006.01); H01Q 13/08 (2006.01); H01Q 15/04 (2006.01)
CPC H01Q 19/08 (2013.01) [H01Q 1/38 (2013.01); H01Q 1/525 (2013.01); H01Q 13/02 (2013.01); H01Q 13/085 (2013.01); H01Q 15/04 (2013.01)] 26 Claims
OG exemplary drawing
 
1. An antenna, comprising:
electrically thin (W<<λhigh), highly conducting, TEM mode antenna arms fed at a first end by a balun, where the TEM mode antenna arms are embedded in a spatially varied anisotropic dielectric material, and a separation between the TEM mode antenna arms increases from the first end to a second end where the TEM mode antenna arms transition to resistive card (Rcard) terminations when the TEM mode antenna arms are separated by a distance Hr, where a ratio of Hr to a height (H) of the antenna is in a range from about 0.2 to about 0.8.