US 12,244,062 B2
Antenna gain enhancement using frequency selective surface
Mahmoud Shirazi, San Diego, CA (US); Guining Shi, San Diego, CA (US); Allen Minh-Triet Tran, Rancho Santa Fe, CA (US); and Derek Punch, Escondido, CA (US)
Assigned to QUALCOMM Incorporated, San Diego, CA (US)
Filed by QUALCOMM Incorporated, San Diego, CA (US)
Filed on Sep. 23, 2022, as Appl. No. 17/952,071.
Prior Publication US 2024/0106130 A1, Mar. 28, 2024
Int. Cl. H01Q 15/00 (2006.01); H01Q 1/38 (2006.01); H01Q 5/392 (2015.01)
CPC H01Q 15/0013 (2013.01) [H01Q 1/38 (2013.01)] 29 Claims
OG exemplary drawing
 
1. An antenna system comprising:
a transducer comprising one or more antenna elements; and
a gain enhancement structure comprising a frequency selective surface and a ground conductor;
wherein the transducer is disposed between the ground conductor and the frequency selective surface; and
wherein the gain enhancement structure is configured to:
provide constructive interference between a first signal of a first frequency and a reflected first signal comprising a reflection of a portion of the first signal by the frequency selective surface and the ground conductor; and
provide constructive interference between a second signal of a second frequency, different from the first frequency, and a reflected second signal comprising a reflection of a portion of the second signal by the frequency selective surface and the ground conductor.