Abstract
A broadband dual-frequency antenna and a broadband dual-polarized antenna are proposed for GSM/3G/LTE mobile communication base stations. Both dual-frequency and dual-polarized antennas have a planar configuration. The dual-frequency antenna achieves a bandwidth of ∼21% (800–990 MHz) for the lower-frequency band and ∼68% (1.35–2.74 GHz) for the higher-frequency band. The broadband dual-polarized planar antenna has a bandwidth of ∼45.5% (1.7–2.7 GHz). Two antenna arrays for the broadband dual-frequency and dual-polarized antennas are developed.
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