NDLI: K-band low-power dual-hybrid-coupling quadrature voltage-controlled oscillator

Content Provider	IET Digital Library
Author	Weng, Ro Min Huang, Ren Yuan Chiang, Yao Chang
Abstract	A low-power and low phase noise quadrature voltage-controlled oscillator (QVCO) is presented for short range radar systems here. A dual-hybrid coupling (DHC) technique is adopted to increase the output voltage swing. The second harmonic filters are applied to eliminate the phase noise as well as to suppress the phase error. The proposed DHC-QVCO was implemented with a low cost standard 0.18 μm complementary metal-oxide-semiconductor (CMOS) process technology. The oscillation frequency is operated between 19.8 and 21.5 GHz. The tuning range is 8.5%. The phase noise achieves −100.1 dBc/Hz at 1 MHz offset from a carrier frequency of 20.6 GHz. The phase error and gain error are 4.29° and 3.2 dBm, respectively. The core circuit consumes only 5.15 mW from a power supply of 1.5 V. The designed DHC-QVCO has demonstrated the advantages of low-power, low phase noise, and wide tuning range for K-band applications.
Starting Page	75
Ending Page	81
Page Count	7
ISSN	17518725
Volume Number	14
e-ISSN	17518733
Issue Number	Issue 1, Jan (2020)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-map/14/1
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-map.2019.0265
Journal	IET Microwaves, Antennas & Propagation
Publisher Date	2019-09-03
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	CMOS Integrated Circuit CMOS Process Technology Core Circuit DHC-QVCO Dual-hybrid Coupling Technique Electrical/electronic Equipment Energy Utilisation Field Effect MIMIC Frequency 1.0 MHz Frequency 19.8 GHz to 21.5 GHz K-band Low Phase Noise Low Power Electronics Low-power Dual-hybrid-coupling Microwave IC Microwave Oscillator Millimetre Wave Oscillator Millimetre Wave Radar Oscillation Frequency Oscillator Output Voltage Swing Phase Error Phase Noise Power 5.15 MW Power Supply Quadrature Voltage-controlled Oscillator Radar Equipment Radar Theory Second Harmonic Filter Short Range Radar System Size 0.18 Mum System And Application Voltage 1.5 V Voltage-controlled Oscillator
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering

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