The Design of a Dual-Polarized Small Base Station Antenna With High Isolation Having Dielectric Feeding Structure

Abstract

A dual-polarized small base station antenna with a dielectric feeding structure is presented. The proposed antenna is composed of a micro-strip feed line board, eight metallic shorting plates, four dielectric feed substrates, four metallic radiators, a metallic cube, and a radome. A wide impedance bandwidth of 20% (2.45 to 3.0 GHz) is achieved. The proposed antenna has an isolation of greater than 50 dB over the operating bandwidth. Details of the proposed antenna design, and the simulated and measured results are presented and discussed.

Design of a dual‐polarised small base station antenna with a metallic isolator for micro‐cell systems

“…The miniaturisation of a BS antenna is also of particular importance. We created a small BS antenna with a metallic cube [1–4], where the BS antenna is mounted inside the metallic cube, and has high gain and isolation. In [5–11], a dual‐polarised antenna using electric and magnetic fields is used.…”