A K-band CMOS low power modified colpitts VCO using transformer feedback

Autor:	Kun-You Lin, Jeffrey Ronald Tseng, Kun-Yao Kao, Chi-Kai Hsieh
Rok vydání:	2009
Předmět:	Materials science business.industry Linear variable differential transformer Electrical engineering law.invention Voltage-controlled oscillator CMOS law Low-power electronics K band Phase noise Electronic engineering Colpitts oscillator business Transformer
Zdroj:	2009 IEEE MTT-S International Microwave Symposium Digest.
DOI:	10.1109/mwsym.2009.5165941
Popis:	A K-band low-power, low phase noise modified Colpitts VCO was implemented in 0.13 µm CMOS process. The timed current switches of the conventional Colpitts VCO are replaced by a differential transformer, and thus the supply voltage of the proposed VCO can be reduced. The VCO has −100 and −109.5 dBc/Hz phase noises at 1 MHz offset under 4 and 10 mW dc power consumptions, respectively. The chip size is 570 × 570 µm2.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::b5b48ea40e9e860b9c2e645aac68eb5e https://doi.org/10.1109/mwsym.2009.5165941 Zobrazit plný text záznamu