Design of Dual-Polarized Aperture-Coupled Microstrip Antenna with High Isolation at 28GHz

Abstract

Abstract In this paper, a dual-polarized antenna with high isolation working at millimeter wave(mmW) frequency band is attempted. The proposed antenna can provide two orthogonal ports fed by only one square radiation patch with more than 30 dB isolation. In addition, the antenna can obtain a peal gain level of around 8dB for two ports. A more simple structure, which consists of two substrates and one foam layer rather than traditional two substrates, a cover plate and two foam layers, makes it more suitable for arrays form and easier for fabrication.