A 20 GHz Low Phase Noise Signal Source Using VCO and Mixer in InGaP/GaAs HBT
Paper in proceedings, 2012

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 100kHz offset frequency. The output power ranges between -8 and -1 dBm.

mixer

VCO

InGaP HBT

third harmonic

Author

Szhau Lai

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

GigaHertz Centre

Mingquang Bao

GigaHertz Centre

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

Dan Kuylenstierna

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

GigaHertz Centre

Herbert Zirath

Chalmers, Microtechnology and Nanoscience (MC2), Microwave Electronics

GigaHertz Centre

2012 IEEE Compound Semiconductor Integrated Circuit Symposium, CSICS 2012, La Jolla, CA, 14 - 17 October 2012

1550-8781 (ISSN)

Art. no. 6340056-

Areas of Advance

Information and Communication Technology

Nanoscience and Nanotechnology (2010-2017)

Subject Categories

Other Electrical Engineering, Electronic Engineering, Information Engineering

DOI

10.1109/CSICS.2012.6340056

ISBN

978-1-4673-0929-5

More information

Created

10/8/2017