A Novel Single-Negative Metamaterial Isolator For Compact Wideband Circular Polarization Antenna Array

摘要

In this paper, a new type of single-negative material structure isolator with a wide band gap of ` 4.3 ~ 5.9 GHz is designed, and it is loaded into a broadband circularly polarized array antenna[1] to reduce the mutual coupling between the antenna elements. Compared to the unloaded array, the results show that the coupling of the antenna array with single negative material isolator is reduced by 9.5dB ~ 32dB in the working frequency band. The isolator has the advantages of easy processing, simple structure and small space.