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This letter introduces a wideband conformal log-periodic dipole array (LPDA) antenna array mounted on a foam cone for direction finding application. To miniaturize this conformal LPDA antenna array, the LPDA antenna with curvilinear dipoles is used. Simulated and measured results show the LPDA antenna with curvilinear dipoles has good radiation performances. Mounting on a ROHACELL foam cone, the LPDA...
A tripolarization rectangle dielectric resonator antenna (DRA) is presented in this paper. Three ports are used to excite TEδ11, TE1δ1 and quasi-TM01δ modes similar to cylindrical DRA. Two modes of TEδ11 and TE1δ1 give two orthogonal horizontal polarizations with broadside radiation patterns, and quasi-TM01δ mode obtains vertical omnidirectional radiation pattern. The isolations among the three ports...
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