A Novel Design of Antenna Array with Two K-Band Circularly Polarized燗ntenna

As an important part of phased array system, the research on antenna is very necessary. The achieves scanning beam adaptively by regulating phase difference between each element. In this paper, a dual K-band circularly polarized with high broadband, broadband beam, wide axial ratio bandwidth and radiation efficiency designed. We combine advantages slot aperture antenna, use multimode waveguide cavity structure to design which fed circular polarizer coupling in order realize polarization radiation. Meanwhile, it has characteristics efficiency. A slit designed using feed used achieve consists two units, spacing units 9.5 mm, T/R module (Transmitter/Receiver module). study performance pattern case group, 2-unit established. simulation results frequency–axial are given, result shown. practical test also given.