標題: A Quadrature Voltage Controlled Oscillator with 9 Selective Bands for UWB Communication
作者: Chang, Po-Yang
Wu, Hui-I
Jou, Christina F.
電信工程研究所
Institute of Communications Engineering
關鍵字: CMOS;Quadrature voltage-controlled oscillator (QVCO);ultra-wideband (UWB)
公開日期: 2007
摘要: A 9 bands quadrature voltage-controlled oscillator (QVCO) for UWB communciation operating from 2 to 10 GHz is presented. The architecture consists of a wideband quadrature voltage-controlled oscillator (QVCO), 2-stage dividers, switch buffer and only one quadrature single-sideband (SSB) mixer. Fabricated in 0.18-mu m CMOS technology, this work achieves QVCO's measured phase noise less than -98 dBc/Hz at 1 MHz offset, and the simulated output powers of twelve bands have better than 35 dB sideband rejection while consuming 58.7mW of the core circuit and 48.7mW of the buffer from a 1.8-V supply. The simulated switching time for hopping frequency is about 1ns.
URI: http://hdl.handle.net/11536/10611
ISBN: 978-1-4244-0748-4
期刊: 2007 ASIA PACIFIC MICROWAVE CONFERENCE, VOLS 1-5
起始頁: 487
結束頁: 490
Appears in Collections:Conferences Paper