122 GHz single-chip dual-channel SMD radar sensor with on-chip antennas for distance and angle measurements

Abstract

This paper describes the design considerations, integration issues, packaging, and experimental performance of recently developed D-Band dual-channel transceiver with on-chip antennas fabricated in a SiGe-BiCMOS technology. The design comprises a fully integrated transceiver circuit with quasi-monostatic architecture that operates between 114 and 124 GHz. All analog building blocks are controllable via a serial peripheral interface to reduce the number of connections and facilitate the communication between digital processor and analog building blocks. The two electromagnetically coupled patch antennas are placed on the top of the die with 8.6 dBi gain and have a simulated efficiency of 60%. The chip consumes 450 mW and is wire-bonded into an open-lid 5 × 5 mm 2 quad-flat no-leads package. Measurement results for the estimation of range, and azimuth angle in single object situation are presented.

Ultracompact Monostatic MIMO Radar With Nonredundant Aperture

“…The coupling network elements G C and B C are not present for the conventional antenna array, i.e., G C =B C =0. Inserting into (14), rearranging, and introducing the variable z as…”

“…The placement of the antennas off the MMIC on the printed circuit board (PCB), such as it is done in [12] and [13], should be avoided for frequencies well above 100 GHz since the bond connections introduce high losses and parasitic radiation. If, on the other hand, the antennas are integrated directly on the MMIC, this results in a large chip area [14], [15].…”