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A Dual-Path Transformer-Based Multiband Power Amplifier for mm-Wave 5G Applicati
基于双路径变压器的毫米波5G双频段功率放大器设计
28/39 GHz频段饱和输出功率15.3/14.0 dBm，峰值效率34.1%/30.2%
毫米波5G功率放大器双频段双路径变压器
▸采用新型双路径变压器(DPT)实现双频段匹配
▸无需开关电路即可为不同频段提供最佳电感值
▸通过分离宽带为两个窄带优化输入输出匹配
Abstract
This article presents a dual-band power amplifier
for 28 and 39 GHz frequency bands based on a new dual-path
transformer (DPT). This DPT can provide two optimum inductive
values at two different frequency bands to optimally design
the matching networks for each band without using any switch
circuitries. It operates as the output and input matching networks
in a parallel power combiner and divider, respectively. DPT-based
PA breaks the trade-off between bandwidth and performance in
conventional w