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A compact broadband dual-polarized patch antenna operating from 1.71 to 2.69 GHz for multi-functional services is presented. It has the total size of 100×100×22 mm3 (0.74λ0×0.74λ0×0.16λ0). Four fork-shaped probes are used to feed a square patch antenna to enhance the impedance bandwidth. A pair of broadband 180°-baluns designed using metamaterial transmission lines (MM TLs) is used in the feeding...
A wideband circularly polarized (CP) antenna with a compact size of 0.64λ0×0.64λ0×0.27λ0 operating at the frequency of 2 GHz is presented. The antenna consists of a 4-way power divider, a patch antenna and a metasurface (MS). The input signal is fed to the 4-way power divider and the signals at the outputs of the 4-way power divider are coupled to a patch antenna using 4 orthogonally oriented L-shape...
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