2.49–4.91 GHz wideband VCO with optimised 8‐shaped inductor. Issue 1 (1st January 2019)

• Record Type: Journal Article
• Authors: Zou, Wei; Zou, Xuecheng; Ren, Daming; Zhang, Kefeng; Liu, Dongsheng; Ren, Zhixiong
• Is Part Of: Electronics letters. Volume 55:Issue 1(2019)
• Page Start: 55
• Page End: 57
• Publication Date: 2019-01-01
• Subjects: circuit tuning -- phase noise -- inductors -- voltage‐controlled oscillators -- CMOS analogue integrated circuits -- UHF oscillators -- MMIC oscillators -- field effect MMIC; wideband low‐phase noise VCO -- multistandard wireless communication system -- frequency pulling -- wide tuning range -- CMOS process -- optimised 8‐shaped inductor -- 8‐shaped high‐Q inductor -- performance enhancement -- 8‐shaped coil -- frequency 2.49 GHz to 4.91 GHz -- size 180.0 nm; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2018.6012
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : A wideband low‐phase noise VCO is proposed for multi‐standard wireless communication system. An 8‐shaped high‐Q inductor is employed to enhance the performance of the VCO. The frequency pulling is reduced by using the 8‐shaped coil. Implemented in a 180 nm CMOS process, the VCO can provide a very wide tuning range of 65.4% from 2.49 to 4.91 GHz. A phase noise lower than −121.25 dBc/Hz is obtained at 1 MHz offset over the whole working band while the current consumed varies from 3.5 to 8.7 mA.