US 11,747,437 B2
Device and method for transmitting a radar signal
Ernst Seler, Munich (DE); Ulrich Moeller, Holzkirchen (DE); and Markus Treml, Altmuenster (AT)
Assigned to Infineon Technologies AG, Neubiberg (DE)
Filed by Infineon Technologies AG, Neubiberg (DE)
Filed on Aug. 10, 2020, as Appl. No. 16/947,605.
Claims priority of application No. 102019122156.0 (DE), filed on Aug. 19, 2019.
Prior Publication US 2021/0055376 A1, Feb. 25, 2021
Int. Cl. G01S 7/35 (2006.01); G01S 13/34 (2006.01); H03F 1/00 (2006.01); G01S 13/02 (2006.01); G01S 13/931 (2020.01); G01S 7/03 (2006.01)
CPC G01S 7/35 (2013.01) [G01S 13/34 (2013.01); H03F 1/00 (2013.01); G01S 7/03 (2013.01); G01S 7/032 (2013.01); G01S 7/034 (2013.01); G01S 13/02 (2013.01); G01S 13/931 (2013.01); G01S 2013/0254 (2013.01); H03F 2200/255 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radar transmitting device, comprising:
a Complementary Metal-Oxide Semiconductor (CMOS) transceiver chip configured to provide at least one local oscillator signal at an output of the CMOS transceiver chip,
wherein the CMOS transceiver chip includes transmission functionality and reception functionality; and
a Bipolar Complementary Metal-Oxide Semiconductor (BiCMOS) transmitter chip coupled to the CMOS transceiver chip,
wherein the BiCMOS transmitter chip does not include functionalities to receive one or more reflected radar signals,
wherein the CMOS transceiver chip is configured to generate a local oscillator signal, of the at least one local oscillator signal, for the BiCMOS transmitter chip, and
wherein the BiCMOS transmitter chip includes:
an input for the local oscillator signal,
at least one amplifier coupled to the input,
a plurality of outputs for outputting a radar transmission signal based on the local oscillator signal, and
a plurality of transmission paths between the input and the plurality of outputs,
wherein each of the transmission paths has a controllable analog phase shifter for controllable beam scanning during emission of the radar transmission signal.