A Miniaturized Very Low-Power Vector Modulated CMOS Phase Shifter for Wireless Receivers

Kastenhuber T, Röber J, Bänisch A, Fischer G, Weigel R (2015)

Publication Type: Conference contribution

Publication year: 2015

Publisher: IEEE

Pages Range: 343-346

Conference Proceedings Title: German Microwave Conference

Event location: Nürnberg

DOI: 10.1109/GEMIC.2015.7107823

Abstract

This paper presents and analyses a phase shifter for diversity receivers, which modulates the I-/Q-vector in the constellation diagram. The system consists of a three stage programmable gain amplifier (PGA) chain in both branches. The design covers the full phase range of 360◦. Each stage can be programmed to amplify the incoming signal between 19 dB and 63 dB with a centre frequency of 3MHz. The radio frequency (RF) signal is down-converted to an intermediate frequency (IF) of 5MHz, where phase shifting is done. The circuit is intended for an automotive satellite radio receiver in S- and L-band. Thus, demand automotive requirements have to be fulfilled. The supply voltage is 1.8V. Compared to other phase shifters, the power consumption of 2.7mW is highly energyefficient. This system includes a constant gm-source and a biasing circuit. All requirements are verified in post-layout Corner and Monte−Carlo analysis using Virtuoso and WiCkeD. The design only takes 0.116 mm2 of silicon area in a 150- nm CMOS technology.

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How to cite

APA:

Kastenhuber, T., Röber, J., Bänisch, A., Fischer, G., & Weigel, R. (2015). A Miniaturized Very Low-Power Vector Modulated CMOS Phase Shifter for Wireless Receivers. In German Microwave Conference (pp. 343-346). Nürnberg: IEEE.

MLA:

Kastenhuber, Tina, et al. "A Miniaturized Very Low-Power Vector Modulated CMOS Phase Shifter for Wireless Receivers." Proceedings of the German Microwave Conference, Nürnberg IEEE, 2015. 343-346.

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