US 12,451,595 B2
Radar antenna for vehicle bumper fascia
Tae Young Yang, Portland, OR (US); Arnaud Amadjikpe, Beaverton, OR (US); Ofer Markish, Ra'anana (IL); Baruch Schiffmann, Shoham (IL); and Hila Hazenshprung, Tirat Yehuda (IL)
Assigned to INTEL CORPORATION, Santa Clara, CA (US)
Filed by INTEL CORPORATION, Santa Clara, CA (US)
Filed on Sep. 23, 2021, as Appl. No. 17/483,370.
Prior Publication US 2022/0013885 A1, Jan. 13, 2022
Int. Cl. H01Q 1/32 (2006.01); B60R 19/48 (2006.01); G01S 7/02 (2006.01); G01S 13/931 (2020.01); H01Q 1/42 (2006.01); H01Q 1/52 (2006.01)
CPC H01Q 1/3233 (2013.01) [B60R 19/483 (2013.01); G01S 7/027 (2021.05); H01Q 1/42 (2013.01); H01Q 1/525 (2013.01); G01S 2013/93271 (2020.01)] 23 Claims
OG exemplary drawing
 
1. A radar apparatus comprising:
a radome;
an antenna array on a Printed Circuit Board (PCB), the antenna array is between the PCB and the radome, the antenna array comprising a Transmit (Tx) antenna configured to transmit Tx radar signals via the radome and a vehicle bumper fascia, and a receive (Rx) antenna configured to receive Rx radar signals based on the Tx radar signals; and
an absorbing spacer in a spacer area between the PCB and the radome, the spacer area separating the Tx antenna from the Rx antenna, the spacer area surrounds the Tx antenna, the spacer area surrounds the Rx antenna, wherein the absorbing spacer is configured to absorb reflected signals formed by reflection of the Tx radar signals from the vehicle bumper fascia,
wherein the absorbing spacer and the radome are integrated by an integrated radome-spacer formed by a plastic layer, wherein the absorbing spacer comprises a carbon-loaded part of the plastic layer.