Design And Simulation Of UHF Wireless Transceiverr

In the field of wireless communication,wireless transceiver is a system that receives and transmits radio waves.Among them,the filter and antenna are important components of the transceiver.Their performance determines the sensitivity,anti-interference and other performance indicators of the transceiver system.UHF frequency band(300 mhz-3 GHz)is located in the low-frequency area of microwave frequency band,and TV,radio and other signals are concentrated in this frequency band,so the electromagnetic environment is very bad,so it is very meaningful and necessary to carry out the research on UHF filter and antenna.In this paper,the design and Simulation of the microstrip filter and the microstrip patch antenna in UHF band are presented.The main work of this paper is as follows:1.Design and Simulation of octave narrowband filter.Based on the research of the theory and design method of microstrip filter,an eighth order microstrip filter with a center frequency of 600MHz is designed with the help of sonnet and ADS software simulation platform.First,the coupling coefficient and external quality factor of the filter are calculated according to the design parameters,and the ideal frequency response curve is drawn in ADS software;then the simulation of the order by order resonator is carried out in Sonnet software and compared with the ideal curve;finally,the filter that meets the design requirements is obtained.2.Design and Simulation of microstrip patch antenna with resonant frequency of 3 GHz.Based on the brief introduction of the design principle of the antenna,the physical size of the patch unit is calculated according to the design parameters,and the impedance is matched by Smith's circle chart and ads's own optimization simulation.A microstrip patch antenna with resonant frequency of 3 GHz is simulated by ADS software.Figure[54]table[3]reference[62]...