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In this paper, an electrically small square loop antenna with a capacitive SRR cover structure is built and tested. The size of the proposed antenna (ka 0.34) is much smaller than the corresponding Chu limit value. The experimental result shows that the resonant frequency and impedance bandwidth (VSWRles2) are 906 MHz and 5.8 MHz (901.7 - 907.5 MHz) respectively. The proposed antenna has maximum gain...
In this paper, the high gain electrically small loop antenna which is satisfied with the small antenna condition ka <1 and MNG MTM condition kreles0.5 is proposed. The proposed antenna is designed with the MNG MTM ground structure in order to match a high inductive reactance. Although it has a compact size, the high efficiency and gain are achieved. It will be available to apply to mobile UMTS...
In this paper, the high gain and broadband antenna operating for SDMB (Satellite Digital Multimedia Broadcasting) system is proposed. The proposed antenna consists of the SAP (Shorted Annular Patch) structure, which inhibits surface-wave and the parasitic SAP element with spacing of 0.25 lambda0 in order to improve gain, bandwidth and directivity. The RHCP (Right Hand Circular Polarization) is generated...
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