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The strip-fed wideband notched rectangular dielectric resonator antenna is investigated in this paper. By simultaneously exciting the TE111y and TE113y modes of the DRA, a wide impedance bandwidth of 56% can be obtained, which entirely covers the WLAN (2.4-2.48 GHz) and WiMAX (3.4-3.7 GHz) bands. The reflection coefficient, radiation patterns, antenna gain and efficiency of the antenna were studied...
A compact wideband circularly polarized (CP) cylindrical dielectric resonator antenna (DRA) with an underlaid 90° couplers is presented. The HEM11Δ (1<; Δ <;1) and HEM11Δ (1<; Δ <;2) modes of the cylindrical DRA are utilized to design the wideband CP DRA. The underlaid coupler is used to generate two quadrature signals, which are fed to two vertical excitation strips stuck on the side...
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