A SiGe BiCMOS double-balanced mixer with active balun for X-band Doppler radar

Rasmus S. Michaelsen, Tom K. Johansen, Kjeld M. Tamborg, Vitaliy Zhurbenko

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

685 Downloads (Pure)

Abstract

In this paper, we present an X-band doublebalanced mixer in SiGe BiCMOS technology. The mixer core consists of a LO Matched quad diode ring using diode-connected Heterojunction Bipolar Transistors (HBTs). The mixer is integrated with a low-noise, high-linearity active balun on the RF port and a miniaturized Marchand balun on the LO port. Experimental results shows a conversion gain of +4 dB at 10.5 GHz with an LO drive level of 15 dBm. The LO-IF and RF-IF isolation is better than 36 dB and 26 dB, respectively, in the entire band of operation. The input referred 1 dB compression point is better than -11 dBm. The IIP2 is +13 dBm at a supply voltage of 3 V and +16.5 dBm at a supply voltage of 6 V. The measured noise figure is found to be ~6.5 dB at 10.5 GHz.
Original languageEnglish
Title of host publicationProceedings. 2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)
Number of pages5
PublisherIEEE
Publication date2015
ISBN (Print)978-1-5090-0431-7
DOIs
Publication statusPublished - 2015
Event2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) - Porto de Galinhas, Brazil
Duration: 3 Nov 20156 Nov 2015
http://www.imoc2015.com/

Conference

Conference2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC)
CountryBrazil
CityPorto de Galinhas
Period03/11/201506/11/2015
Internet address

Cite this

Michaelsen, R. S., Johansen, T. K., Tamborg, K. M., & Zhurbenko, V. (2015). A SiGe BiCMOS double-balanced mixer with active balun for X-band Doppler radar. In Proceedings. 2015 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) IEEE. https://doi.org/10.1109/IMOC.2015.7369090