Title :
A 79-GHz radar transceiver with switchable TX and LO feedthrough in a Silicon-Germanium technology
Author :
Wagner, Christoph ; Forstner, Hans-Peter ; Haider, Günter ; Stelzer, Andreas ; Jäger, Herbert
Author_Institution :
Christian Doppler Lab. for Integrated Radar Sensors, Johannes Kepler Univ., Linz
Abstract :
This contribution shows the successful implementation of a fully-differential single-chip radar transceiver with switchable transmit path. The chip facilitates cascading of multiple modules via daisy-chaining using the integrated LO power splitter and LO output on the chip edge opposite to the LO input (LO feedthrough). An on-chip differential rat-race coupler provides for separation of transmit (TX) and receive (RX) paths, therefore only a single antenna port is required. The circuit performance is demonstrated in on-board measurements.
Keywords :
Ge-Si alloys; radar; semiconductor materials; transceivers; voltage-controlled oscillators; SiGe; frequency 79 GHz; fully-differential single-chip radar transceiver; on-board measurement; on-chip differential rat-race coupler; receive path; single antenna port; switchable transmit path; the integrated LO power splitter; transmit path; Antenna measurements; Circuit optimization; Coupling circuits; Germanium silicon alloys; Radar; Receiving antennas; Semiconductor device measurement; Silicon germanium; Transceivers; Transmitting antennas; 77GHz; radar; switchable TX; transceiver;
Conference_Titel :
Bipolar/BiCMOS Circuits and Technology Meeting, 2008. BCTM 2008. IEEE
Conference_Location :
Monteray, CA
Print_ISBN :
978-1-4244-2725-3
Electronic_ISBN :
1088-9299
DOI :
10.1109/BIPOL.2008.4662723
