Design of Broadband High Efficiency Power Amplifier Based on Simple Real Frequency Technology
In order to meet the requirements of bandwidth and efficiency of power amplifier in 5G communication system,based on CGH40010F transistor and simple real frequency technology,a broadband high-efficiency power amplifier working in n77 frequency band(3.3 GHz-4.2 GHz)is designed.Firstly,the load traction method is used to extract the optimal fundamental impedance value of each fre-quency point and the second harmonic impedance space,and the simple real frequency technology is adopted to design the broadband matching network.Under the premise of good simulation performance,the machining test is carried out.The test results show that the drain efficiency of the power amplifier is 58.1％-64.5％,the gain is 11.1 dB-12.9 dB,and the saturation output power is 39.6 dBm-41.3 dBm in the 3.3 GHz-4.2 GHz band.The performance of the power amplifier is good,and the bandwidth and efficiency of the power amplifier have certain advantages,which can provide a reference for the subsequent design of broadband high-efficiency power amplifier.
power amplifiersimple real frequency technologybroadbandhigh efficiency
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