A Digitally Controlled D-Band Phase Shifter for FMCW Radar and RadCom in SiGe BiCMOS
- Resource Type
- Conference
- Authors
- Schrotz, Albert-Marcel; Breun, Sascha; Schonharl, Stefan; Weigel, Robert
- Source
- 2024 IEEE Wireless and Microwave Technology Conference (WAMICON) Wireless and Microwave Technology Conference (WAMICON), 2024 IEEE. :1-4 Apr, 2024
- Subject
- Aerospace
Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Wireless communication
Multiplexing
Power demand
Phase measurement
Phase modulation
Phase shifters
BiCMOS integrated circuits
D-band
millimeter-wave integrated circuits
phase shifter
vector modulator (VM)
- Language
This paper presents an integrated vector modulator-based phase shifter operating in the frequency range of 140 GHz to 170GHz (D-band). A 360° phase and amplitude control is realized by four 7-bit SPI-controllable current sources controlling the I and Q branches of the vector modulator. Measurements at a phase resolution of 11.25° show a gain of 5.4 dB with an RMS phase error of < 1.80° and remarkable < 1.0° in the range of 150GHz to 170 GHz. It shows an RMS amplitude error of < 3.4 dB (< 1.9 dB from 144 GHz to 170 GHz). This phase shifter is suitable, e.g., for Doppler multiplexing in FMCW radar or modulation of communication signals for RadCom applications. The circuit is manufactured using Infineon’s 130nm B11HFC BiCMOS (f t /f max of 250GHz/370GHz) technology. The die area is 0.111mm 2 (with I/Q generation), and the maximum power consumption is 151mW.