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Fully integrated CMOS tunable power amplifier using reconfigurable input/interstage/output matching networks

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Abstract

This paper presents a two-stage tunable power amplifier (PA) fully-integrated in 130 nm CMOS process. This multi-band PA consists of reconfigurable input, interstage, and output matching networks in order to tune the center frequency in use. The proposed tunable power amplifier enables three different bands with center frequency of 900 MHz, 1450 MHz, and 1900 MHz. By switching these bands, the designed power amplifier covers frequency range of 700 MHz–2200 MHz known as Long-Term Evolution mobile network. As a result, the proposed tunable power amplifier obtains small-signal gain (S21) of 27.8 dB/29.4 dB/28.6 dB, saturated output power (Psat) of 22.4 dBm/23.0 dBm/23.2 dBm, and power added efficiency of 21.0%/23.7%/25.0% at three targeted frequency bands, respectively. The proposed fully-integrated triple-band power amplifier chip layout occupies an area of 2.25 mm2 including bond pads.

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Authors and Affiliations

  1. Department of Electrical and Computer Engineering, North Dakota State University, Fargo, ND, 58105, USA

    S. Babak Hamidi

  2. School of Engineering and Technology, University of Washington, Tacoma, WA, 98402, USA

    Debasis Dawn

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  1. S. Babak Hamidi
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  2. Debasis Dawn
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Correspondence to S. Babak Hamidi.

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Hamidi, S., Dawn, D. Fully integrated CMOS tunable power amplifier using reconfigurable input/interstage/output matching networks. Analog Integr Circ Sig Process 107, 73–82 (2021). https://doi.org/10.1007/s10470-020-01777-9

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  • DOI: https://doi.org/10.1007/s10470-020-01777-9

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