Affiliation:
1. AI Soc Division, Artificial Intelligence Computing Research Laboratory Electronics & Telecommunications Research Institute Daejeon Republic of Korea
Abstract
AbstractA 19‐GHz low‐phase‐noise PLL‐frequency synthesizer is presented in this letter that is intended to be used in a K‐band FMCW radar which requires strict phase noise for detecting a small unmanned aerial vehicle. The 17.9 to 19.5‐GHz PLL includes a Darlington cross‐coupled capacitive‐degeneration VCO which presents higher maximum attainable oscillation frequency (ƒtrans) and larger negative transconductance (gm), thus resulting in low phase noise. Manufactured using the SiGe BiCMOS process, the K‐band synthesizer demonstrates −114 dBc/Hz at 1 MHz offset and −138 dBc/Hz at 10 MHz offset from 19.456 GHz locking carrier frequency.
Funder
Electronics and Telecommunications Research Institute
Publisher
Institution of Engineering and Technology (IET)
Subject
Electrical and Electronic Engineering
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