Design Method for Broadband Microwave Receiver Radio Frequency Front-End Based on 5G Communication
This paper proposes a new design approach for the radio frequency front-end of a wideband microwave receiver in 5G communication systems.The design employs a multi-stage amplification structure and a double-balanced mixer architecture,integrating a Low Noise Amplifier(LNA),mixer,filter,and power amplifier.By optimizing the matching network and using advanced GaN devices,the design achieves high gain,low noise,and high linearity performance within the 3.3 to 4.2 GHz frequency band.Experimental results indicate that the designed radio frequency front-end achieves a flat gain of 23.2 to 23.7 dB,a noise figure as low as 1.3 dB,an output power of 32.4 dBm,and a dynamic range of 64 dB within this frequency band,meeting the performance requirements of 5G communication systems.
5G communicationbroadband microwave receiverradio frequency front-end