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In this paper, a 10-GHz MMIC power amplifier (PA) using a lossless feedback (FB) technique for unilateralized device to achieve optimal output power and improve return loss at the same time is implemented in 2μm GaAs HBT. Compared with the conventional common emitter (CE) PA, the gain of the FB PA is improved from 8 to 12.7 dB, and the PAE is improved from 35.6% to 41%. This FB power amplifier has...
This paper presents a 27–34 GHz medium power amplifier in 65-nm CMOS technology. The amplifier is designed to amplify the LO signals from the 30-GHz VCO in a 60-GHz sub-harmonic direct-conversion system. The proposed amplifier achieves a measured gain of higher than 22.8 dB from 27 to 34 GHz, and the gain deviation is within 1 dB. The measured results show a PAE up to 13% at 1-dB compression power...
This letter presents a broadband medium power amplifier in 0.18-μm CMOS technology. The Darlington cascode topology is used to achieve wide bandwidth, flat gain and power frequency response. For wideband matching consideration, an interstage inductor and series peaking RL circuit are adopted. An output high pass matching circuit is used to maintain gain and power flatness at high frequency. The measured...
A balanced PA covering 68-83 GHz is developed in 90 nm CMOS. Using wideband power matching topology, the PA achieves power gain of greater than 18.1 dB from 68 to 83 GHz and gain flatness within 0.2 dB from 68 to 78 GHz. The PA has a maximum saturation output power of 14 dBm at 70 GHz, and greater than 11.8 dBm from 68 to 83 GHz. The best P1dB is 12 dBm at 68 GHz, and greater than 8.3 dBm from 68...
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