A 60-GHz Dual-Vector Doherty Beamformer
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2017.2661980
Abstract: In this paper, we demonstrate a 60-GHz transmit beamformer implemented in 130-nm SiGe BiCMOS technology which includes a Doherty amplifier driven by a dual-vector phase rotator (DVR). In addition, a benchmarking circuit comprising another DVR… read more here.
Keywords: vector doherty; beamformer; doherty; dual vector ... See more keywords
A 44–64-GHz mmWave Broadband Linear Doherty PA in Silicon With Quadrature Hybrid Combiner and Non-Foster Impedance Tuner
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2022.3171570
Abstract: The proliferation of millimeter-wave (mmWave) bands across 24–90 GHz and the strict spectral efficiency requirements demand future transmitter front ends to operate across multiple bands with simultaneously back-off efficiency and high linearity—characteristics that typically trade… read more here.
Keywords: quadrature hybrid; doherty; non foster; efficiency ... See more keywords
Efficient Millimeter Wave Doherty PA Design Based on a Low-Loss Combiner Synthesis Technique
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2017.2763739
Abstract: We report on a record-efficient 30-GHz 21-dBm differential Doherty PA designed in a 130-nm SiGe process. The output network is designed using a recently developed combiner synthesis technique. This technique enables impedance inversion and parasitic… read more here.
Keywords: technique; combiner synthesis; synthesis technique; doherty ... See more keywords
Broadband Highly Efficient Doherty Power Amplifiers
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Circuits and Systems Magazine"
DOI: 10.1109/mcas.2020.3027221
Abstract: Modern wireless communication systems with large bandwidth and high peak-to-average power ratios (PAPRs) have been and will continue to be in high demand. This puts a strain on the transmitter, which has to operate with… read more here.
Keywords: doherty pas; power; doherty power; doherty ... See more keywords
Impact of Nonideal Auxiliary Current Profile on Linearity of Microwave Doherty Amplifiers: Theory and Experiments
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2022.3152589
Abstract: A new nonlinear effect of Doherty power amplifier (DPA) caused by the nonideal auxiliary current is disclosed. In contrary to traditional assumption, the auxiliary current profile is found to be a nonlinear function of input… read more here.
Keywords: auxiliary current; doherty; current profile; linearity ... See more keywords
Triple-Mode Reciprocal Doherty Power Amplifier With Multi-Band Operation and Extended High Efficiency Range
Sign Up to like & getrecommendations! Published in 2023 at "IEEE Transactions on Circuits and Systems I: Regular Papers"
DOI: 10.1109/tcsi.2023.3242693
Abstract: This article presents the methodology for designing triple-mode Doherty power amplifier (DPA) with multi-band operation and extended high efficiency range. It is illustrated that three different Doherty operation modes can be realized by simply re-setting… read more here.
Keywords: operation; high efficiency; doherty; power ... See more keywords