A 19-GHz low-phase-noise frequency synthesizer for a K-band FMCW radar sensor of detecting micro unmanned aerial vehicles

被引：0

作者：

Lee, Jayol ^{[1
]}

Park, Kyung Hwan ^{[1
]}

Koo, Bon Tae ^{[1
]}

机构：

[1] Elect & Telecommun Res Inst, AI Soc Div, Artificial Intelligence Comp Res Lab, Daejeon, South Korea

来源：

ELECTRONICS LETTERS | 2024年 / 60卷 / 02期

关键词：

complementary metal-oxide-semiconductor (CMOS); frequency-modulated continuous wave (FMCW); frequency synthesizers; oscillators; phase-locked loop (PLL); radar; silicon germanium (SiGe); voltage-controlled oscillators (VCO);

D O I：

10.1049/ell2.13094

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A 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 (integral trans) 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.

引用

页数：3

共 14 条

[1] A 40 Gb/s Monolithically Integrated Linear Photonic Receiver in a 0.25 μm BiCMOS SiGe:C Technology [J].