A Ka-Band Dual-Polarized Microstrip Antenna Array with High Isolation and Low Cross-Polarization

摘要

In this paper, a novel design of dual-polarized microstrip antenna array for Ka band is presented. A single layer mirostrip antenna is excited by coplanar coupled method, which can increase the isolation between the two ports. From the measurement results, a steep isolation better than -33dB and cross polarization level less than -30dB are achieved with the presented design. Furthermore, the proposed antenna structure takes good features of simplicity and high integration.