US 12,066,517 B2
Radar apparatus, system, and method
Naftali Landsberg, Kiryat Ono (IL); Woorim Shin, Portland, OR (US); Dan Ohev Zion, Ra'anana (IL); Meir Gordon, Holon (IL); Omer Asaf, Oranit (IL); Danniel Nahmanny, Givat Shapira (IL); Mustafijur Rahman, Hillsboro, OR (US); and Stefano Pellerano, Beaverton, OR (US)
Assigned to INTEL CORPORATION, Santa Clara, CA (US)
Filed by Intel Corporation, Santa Clara, CA (US)
Filed on May 20, 2021, as Appl. No. 17/326,133.
Application 17/326,133 is a continuation of application No. PCT/US2020/052423, filed on Sep. 24, 2020.
Claims priority of provisional application 63/027,970, filed on May 21, 2020.
Claims priority of provisional application 63/027,983, filed on May 21, 2020.
Claims priority of provisional application 63/029,515, filed on May 24, 2020.
Prior Publication US 2021/0364619 A1, Nov. 25, 2021
Int. Cl. G01S 13/34 (2006.01); G01S 13/88 (2006.01); H03F 3/21 (2006.01); H04B 1/04 (2006.01); G01S 13/931 (2020.01)
CPC G01S 13/342 (2013.01) [G01S 13/881 (2013.01); H04B 1/0483 (2013.01); G01S 13/931 (2013.01); G01S 2013/93271 (2020.01); H04B 2001/0408 (2013.01)] 25 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a plurality of Transmit (Tx) chains to transmit radar Tx signals; and
a plurality of Receive (Rx) chains to process radar Rx signals, the radar Rx signals based on the radar Tx signals, wherein an Rx chain of the plurality of Rx chains comprises a multi-core Low Noise Amplifier (LNA) configured to provide an amplified Radio-Frequency (RF) signal at an output node based on an input RF signal at an input node, the multi-core LNA comprising a plurality of LNA cores connected in parallel between the input node and the output node, the plurality of LNA cores comprising:
a first LNA core comprising a first LNA core input connected to the input node and a first LNA core output connected to the output node, the first LNA core biased by a first bias voltage; and
a second LNA core comprising a second LNA core input connected to the input node and a second LNA core output connected to the output node, the second LNA core biased by a second bias voltage different from the first bias voltage, wherein at least one of the first bias voltage or the second bias voltage is based on a Baseband (BB) signal, the BB signal is based on the amplified RF signal, wherein the first bias voltage and the second bias voltage are configured such that a total Output Intercept Point of an n-th order (OIPn) of a plurality of Rx chain elements of the Rx chain, which comprises the multi-core LNA, a mixer, and BB circuitry, is greater than an OIPn of the plurality of Rx chain elements excluding the multi-core LNA.