A 12 Gbps Analog QPSK baseband receiver based on Injection-locked VCO
Paper in proceedings, 2015

Injection locking based QPSK demodulation have been reported in several publication, however the data rate is less than Gbps. In this paper, the theory of an oscillator injection locks to a wideband modulated signal is studied. Based on the principle study, a proof of concept QPSK coherent baseband receiver is designed and verified. The receiver is able to demodulator QPSK signal with data rate up to at least 12 Gbps, which is limited by the mixer bandwidth. The receiver has a power consumption of 210 mW. It consists of a novel injection-locked VCO (ILVCO) based carrier recovery block, which can be used for even higher data rates if the theoretical condition proposed in this paper is met.

millimeter wave radio

Coherent detection

Injection lock

Baseband receiver

QPSK

Author

Zhongxia Simon He

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Dan Kuylenstierna

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Szhau Lai

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

IEEE International Microwave Symposium

0149-645X (ISSN)

Areas of Advance

Information and Communication Technology

Subject Categories

Communication Systems

ISBN

978-1-4799-8275-2

More information

Created

10/8/2017