Research and Design of One New Type of Satellite Antenna Unit

摘要

Antenna unit is the front end of the vehicle satellite, whether to the effective protection of the signal is received, the paper presents a novel microstrip antenna as a photonic crystal cyclical contour cylindrical air gap, and the shape of the radiation patch cut Notching of the ladder-type shape and has a good base slotted for a large number of experiments, simulation and optimization of the antenna with HFSS V12, results showed that the patch was "Asian" font, the highest performance antenna and the structure of the antenna the broadband resonant characteristics, the return loss is less than a 10 dB, impedance relative bandwidth of up to 47.1%, in a KU-band frequency range of the voltage standing wave ratio (less than VSWR ＜2), the relative bandwidth ratio reached 68.9%, significantly improved antenna the indicators.