volume | PIER Journals

Abstract

In this paper, a novel stacked wideband differentially feed antenna with dual polarizations is designed for base station. The circular parasitic patch deepens the resonance depth by slotting. Two linear dipoles are placed at ±45° under the circular parasitic patch to reduce the overall size of the antenna. The antenna introduces a cross-shaped differential feed to achieve high port isolation. Finally, the designed antenna is fabricated and tested. The test results show that the differential reflection coefficient |Sdd11| is more than 15 dB. The antenna achieves a differential impedance bandwidth of 53.1% (1.63 GHz-2.8 GHz). The isolation is greater than 42 dB over the entire operating bandwidth. The antenna also has a stable gain of 8.2±0.4 dBi and a half-power beamwidth of 65°±4°.

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Dr. Hua Chen

Dr. Quan Wang

Dr. Mankang Xue

Dr. Xinhui Yang

Dr. Ning Huang

Dr. Qing Fang