A dual-polarized small base station antenna having a high Tx/Rx isolation characteristics for 900 MHz small-cell MIMO systems

Jung-Nam Lee, Myung Don Kim and Tae Joong Kim

Journal of Electromagnetic Waves and Applications, 2018, vol. 32, issue 8, 1018-1028

Abstract: A dual-polarized base station (BS) antenna is proposed that has a spiral isolator, a T-shaped matching stub, and a metal cube. The antenna is composed of a metallic cube, micro-strip feed line board, metallic feeding cylinders, spiral isolator, isolator connecting pins, micro-strip patch, and T-shaped matching stubs. The measured frequency bandwidth is 898–970 MHz at ports-1 and 2. The measured isolation is 40 dB over the operating frequency band and the measured antenna peak gain is 7.5 dBi.

Date: 2018
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DOI: 10.1080/09205071.2017.1412359

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