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This paper presents a low phase noise 20 GHz signal source based on a voltage control oscillator(VCO) and a mixer integrated on a single MMIC. The mixer generates a third harmonic output by mixing the fundamental and the second harmonic signals of the VCO. Using a relatively low frequency VCO has the advantage of better Q factor and thus better phase noise. The MMIC-signal source is designed in a GaAs-InGaP HBT process. The VCO uses balanced Colpitts topology and the mixer is a high conversion-gain single-balanced mixer. The MMIC delivers signals in the frequency range 19.4-21.2 GHz with an excellent phase noise of -100 to -93 dBc/Hz at 100 kHz offset frequency. The output power ranges between -8 and -1 dBm.
Published in:
Compound Semiconductor Integrated Circuit Symposium (CSICS), 2012 IEEE
Date of Conference: 14-17 Oct. 2012
- Page(s):
- 1 - 4
- ISSN :
- 1550-8781
- Print ISBN:
- 978-1-4673-0928-8
- INSPEC Accession Number:
- 13101404
- Conference Location :
- La Jolla, CA
- Digital Object Identifier :
- 10.1109/CSICS.2012.6340056
- Product Type:
- Conference Publications
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