24 GHz phase-tunable resistively-coupled VCO

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In this paper, a 24 GHz phase-tunable resistively-coupled VCO is presented. The proposed VCO consists of two identical VCOs which are coupled through resistors. By differentiating free-running frequencies of two VCOs by controlling variable capacitances of their respective resonators, continuous phase difference between the VCOs upto 90° could be established. This shows the phase noise of -95.3 dBc/Hz and tuning range of 11.8 % with 18 mW DC power consumption. This is fabricated using 0.13 um CMOS process with its chip area of 1×1 mm2. The phase difference tuning capability of coupled oscillators can be used in some applications.
Publisher
IEEE
Issue Date
2016-08
Language
English
Citation

2016 IEEE International Symposium on Radio-Frequency Integration Technology (RFIT)

DOI
10.1109/RFIT.2016.7578137
URI
http://hdl.handle.net/10203/227415
Appears in Collection
EE-Conference Papers(학술회의논문)
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