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A Transformer-Coupling Current-Reuse SiGe HBT Power Amplifier for 77-GHz Automotive Radar.
- Source :
-
IEEE Transactions on Microwave Theory & Techniques . Jun2012 Part 1 Part 1, Vol. 60 Issue 6, p1676-1683. 8p. - Publication Year :
- 2012
-
Abstract
- This paper presents a pseudodifferential power amplifier for 77-GHz automotive radar. The circuit is fabricated in a SiGe HBT BiCMOS technology featuring bipolar transistors with fT/f\max of 230/280 GHz. The amplifier adopts a transformer-coupling current-reuse approach to improve both gain and efficiency. An interstacked transformer is also profitably adopted to reduce output losses due to the differential-to-single-ended conversion. The amplifier exhibits a saturated power, a peak power-added efficiency, and a gain of 14.5 dBm, 9%, and 25 dB, respectively, thus achieving a first-rate figure-of-merit as high as 4755. [ABSTRACT FROM PUBLISHER]
Details
- Language :
- English
- ISSN :
- 00189480
- Volume :
- 60
- Issue :
- 6
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Microwave Theory & Techniques
- Publication Type :
- Academic Journal
- Accession number :
- 76329409
- Full Text :
- https://doi.org/10.1109/TMTT.2012.2189243