Abstract
A broadband dual-polarized antenna with second-order band-notched characteristics is discussed in this letter for base station applications. The proposed antenna consists of three parts: main radiator, feed structures, and reflector. By arranging a short-ended quarter-wavelength U-sharped stubs next to the feeding lines and slitting the short-ended half-wavelength split-ring slots on the main radiators, a second-order notched band is achieved. The simulated results show that it has a bandwidth of 54.3% along with a sharp notch band from 1.8 to 1.93 GHz. Having the advantages of dual polarization, wide bandwidth, and good radiation performance, the proposed antenna can find its application in the next-generation wireless communication systems.
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