| Fabry-Perot (FP) resonant antenna under resonance conditions, electromagnetic waves between the upper and lower cover repeated transmission antenna reflector, and finally with the overlay to achieve high gain and high aperture efficiency. FP resonant antenna in the microwave and millimeter wave band has a very bright future, but in the high-speed wireless communications and radar systems development today, due to the requirements of the antenna in the multi-functional, diverse, efficient direction, so I hope FP resonant antenna reconfigurable characteristics can be achieved.Based on the basic structure of FP resonant antenna beam focus on the design of reconfigurable FP resonant antenna. Varactor control using the resonance of the antenna ground plane FP HIS reflection phase by changing the reflection phase plate FP of the antenna to achieve a pen-shaped double-beam reconstruction beam. The ultimate combination of design on the cover of the antenna FSS, under cover HIS controlled phase composition and overall beam waveguide feed reconfigurable FP resonant antenna optimized simulation results when the pen-shaped beam can reach directivity of18.74dB, aperture efficiency of42.5%; changing the varactor capacitance, the directivity of dual-beam reconstructiont is10.3dB, beams angle of40°.Final processing and texting for physical,different capacitance corresponding pattern consistent with the simulation to verify the correctness of the design.. |
PDF Full Text Request