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This paper presents microstrip antennas (MSAs) for multiband operation fed by an L-probe. The proposed antennas consist of a double-layered dielectric substrate. Patch elements are on the top surface of the upper substrate and the L-shaped probe is in the lower substrate. V-shaped slots on a rhombic MSA and multiple-ring MSAs are effective for multiple resonances. In order to realize wideband impedance...
This paper demonstrates a novel multiband rhombic microstrip antenna (MSA) with multiple slots printed on a single-layer PTFE substrate. The antenna is fed by a coplanar gap coupled with a V-shaped patch. Three inverted V-shaped slots are assumed on the rhombic patch and hence four resonant frequencies are obtained. Broadside radiation patterns and gain of over 5.0 dBi are also obtained. Experiments...
This paper demonstrates a novel multiband rhombic microstrip antenna (MSA) with multiple slots printed on a single-layer PTFE substrate. The antenna is fed by a coplanar gap coupled with a V-shaped patch. Three inverted V-shaped slots are assumed on the rhombic patch and hence four resonant frequencies are obtained. Broadside radiation patterns and gain of over 5.0 dBi are also obtained. Experiments...
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