A 76-Gbit/s 265-GHz CMOS Receiver With WR-3.4 Waveguide Interface
- Resource Type
- Periodical
- Authors
- Hara, S.; Dong, R.; Lee, S.; Takano, K.; Toshida, N.; Kasamatsu, A.; Sakakibara, K.; Yoshida, T.; Amakawa, S.; Fujishima, M.
- Source
- IEEE Journal of Solid-State Circuits IEEE J. Solid-State Circuits Solid-State Circuits, IEEE Journal of. 57(10):2988-2998 Oct, 2022
- Subject
- Components, Circuits, Devices and Systems
Engineered Materials, Dielectrics and Plasmas
Computing and Processing
Mixers
Layout
Inductors
Wireless communication
Receivers
Metals
Noise measurement
6G
beyond 5G
low-noise design
near- fmax circuits
terahertz wireless communication
waveguide transition
- Language
- ISSN
- 0018-9200
1558-173X
A 76-Gbit/s 265-GHz CMOS receiver (RX) modularized with a WR-3.4 waveguide interface is presented. It is a mixer-first RX fabricated using a 40-nm CMOS technology. The primary design focus is simplicity and the resulting low noise and loss and high conversion gain (CG). To allow for both on-wafer and packaged measurements, ON-chip transmission lines are designed such that their characteristics are relatively insensitive to the presence or absence of adhesive covering the chip. The RX chip is flip-chip-mounted on a multilayer printed circuit board (PCB). Built into the PCB is a waveguide transition using double-resonant stacked patches for wideband operation. The CMOS RX module achieves the highest wireless data rate of 76 Gbit/s with 16 QAM, which is comparable to 80 Gbit/s reported previously for a CMOS RX with on-wafer probing measurement.