Title :
A wideband 60 GHz VCO with linear tuning range
Author :
Qiong Zou ; Kaixue Ma ; Kiat Seng Yeo
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore, Singapore
Abstract :
A wideband 60 GHz VCO with linear tuning range is proposed in this paper. The transformer-based differential tuning scheme is proposed for the fine frequency tuning, and the varactor pairs are used for the coarse frequency tuning. The VCO demonstrated 22.2 % tuning range from 56.43 to 69.79 GHz. By using the differentially tuned scheme, the proposed VCO has a linear tuning range, which can be used in wide band frequency synthesizer where a constant loop gain is desired.
Keywords :
frequency synthesizers; millimetre wave oscillators; transformers; varactors; voltage-controlled oscillators; coarse frequency tuning; fine frequency tuning; frequency 56.43 GHz to 69.79 GHz; linear tuning range; transformer-based differential tuning scheme; varactor pairs; wide band frequency synthesizer; wideband VCO; Phase noise; Q-factor; Switches; Transformer cores; Tuning; Varactors; Voltage-controlled oscillators;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929461
