A Compact Dual-Polarized Double E-Shaped Patch Antenna With High Isolation

作者:Gou, Yanshan*; Yang, Shiwen; Zhu, Quanjiang; Nie, Zaiping
来源:IEEE Transactions on Antennas and Propagation, 2013, 61(8): 4349-4353.
DOI:10.1109/TAP.2013.2262664

摘要

A compact dual-polarized double E-shaped patch antenna with high isolation for pico base station applications is presented in this communication. The proposed antenna employs a stacked configuration composed of two layers of substrate. Two modified E-shaped patches are printed orthogonally on both sides of the upper substrate. Two probes are used to excite the E-shaped patches, and each probe is connected to one patch separately. A circular patch is printed on the lower substrate to broaden the impedance bandwidth. Both simulated and measured results show that the proposed antenna has a port isolation higher than 30 dB over the frequency band of 2.5 GHz -2.7 GHz, while the return loss is less than within the band. Moreover, stable radiation pattern with a peak gain of 6.8 dBi - 7.4 dBi is obtained within the band.