US 12,482,928 B2
Embedded antennas structures for wireless communications and radar
Debabani Choudhury, Thousand Oaks, CA (US); Jose Rodrigo Camacho Perez, Guadalajara (MX); Shuhei Yamada, Hillsboro, OR (US); Vida Ilderem Burger, Phoenix, AZ (US); Bryce D. Horine, Portland, OR (US); and Harry Skinner, Beaverton, OR (US)
Assigned to Intel Corporation, Santa Clara, CA (US)
Appl. No. 17/762,749
Filed by Intel Corporation, Santa Clara, CA (US)
PCT Filed Dec. 27, 2019, PCT No. PCT/US2019/068676
§ 371(c)(1), (2) Date Mar. 23, 2022,
PCT Pub. No. WO2021/133408, PCT Pub. Date Jul. 1, 2021.
Prior Publication US 2022/0352622 A1, Nov. 3, 2022
Int. Cl. H01Q 1/32 (2006.01); B60Q 1/00 (2006.01); H01Q 3/34 (2006.01)
CPC H01Q 1/3208 (2013.01) [B60Q 1/0017 (2013.01); H01Q 3/34 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A retro-directive antenna array system for wireless communications comprising:
an antenna array comprising one or more antenna elements;
a negative refractive-index engineered material (NIM) deposited over at least one of the one or more antenna elements; and
a controller configured to control a switch configured to connect the one or more antenna elements to a transmission path and to a reception path,
wherein the NIM has a tunable surface configured to be adjusted by the controller via application of a stimulus into a negative refraction mode when the one or more antenna elements are connected to the reception path and to be adjusted into a positive refraction mode when the one or more antenna elements are connected to the transmission path.