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This paper presents a broadband Doherty power amplifier (DPA) design with two continuous Class-F-1 matching circuit eliminating offset line in carrier way to increase the bandwidth and efficiency. By employing this compact and highly efficient design method, a DPA working at 2.0 GHz∼2.6 GHz is designed and implemented for verification. With continuous wave (CW) measurements, the experimental results...
This letter proposes a two-path mixed coupling tunable bandpass filter with constant bandwidth. This compact configuration can achieve little bandwidth variation in a large tuning range. Presented with the equivalent circuit of the coupling structure, the analytical formulas of the two-path mixed coupling structure are derived to determine the initial dimensions of the resonator quickly. Furthermore,...
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