Novel High-Linearity VCO Accepted for Publication by IEEE Microwave Wireless Components Letters
- 发布时间：
- 2020-01-13
- 文章标题：
- Novel High-Linearity VCO Accepted for Publication by IEEE Microwave Wireless Components Letters
- 内容：
"A Voltage-Controlled Ring Oscillator with VCO-Gain Variation Compensation" has been accept for publication in the IEEE Microwave and Wireless Components Letters.
Abstract—A voltage-controlled oscillator (VCO) with VCO-gain (KVCO) variation compensation is proposed to reduce KVCO variation in a current-mode logic (CML) ring oscillator by introducing a cross-coupled pair with capacitive degeneration that mitigates the nonlinearity of KVCO. Designed and fabricated in a standard 0.18-μm CMOS process, the proposed VCO can be tuned from 1.78 GHz to 2.53 GHz, with the VCO gain variation less than 14.01%, while occupying a core area of 0.185 x 0.081 mm2 and consuming 20 mA including the bias circuitry, from a 1.8-V supply voltage. The phase noise is measured to be -92.68 dBc/Hz at 1MHz offset and -114.97 dBc/Hz at 10 MHz offset from the high-band carrier frequency, respectively.
