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This paper presents a novel wideband differentially driven circularly polarized antenna. It consists of a ground plane, a half loop and a dipole. Circularly polarized radiation is realized by overlapping the far field of the half loop and dipole. The overall bandwidth of the antenna, restricted by its 3dB axial ratio and 3dB gain bandwidths, is from 5 to 6.9GHz or 32%. The peak gain within the bandwidth...
A single-fed miniaturized circularly polarized (CP) microstrip patch antenna is designed and experimentally demonstrated for biomedical applications. The proposed antenna is designed utilizing the capacitive loading on the radiator. Compared with a square patch antenna, the proposed antenna has achieved a significant size-reduction of ∼72%. The footprint of proposed antenna is 10×10×1.27 mm3. The...
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