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In this paper, a new cap structure of monopole antenna with a switched feeding structure is investigated. This antenna provides a wide input impedance bandwidth, and a small size for handset co-integration. The measured results show that the return loss and antenna input impedance of the cap type monopole antenna provides a considerably large bandwidth even with a radiating area. It is found that...
A novel and simple structure for a CPW-fed half-loop antenna is presented. The proposed antenna covers the Ultra-Wideband (UWB) bandwidth (3.1~10.6 GHz) to even higher band (~20 GHz) for VSWR<2. Tapered slot structure and half-loop antenna exhibits highband and lowband, respectively. The measured results are in fairly good agreements with those simulation ones. Index Terms slot antenna.
The semi-rigid cable for microwave band as a feeding network structure that effectively excited tapered TEM horn antenna geometry is proposed. The semi-rigid cable to parallel waveguide transition then to fed tapered TEM horn antenna. The designed tapered TEM horn antenna has the merits such as wideband, simple feeding network, low profile compact size with fairly good antenna performances such as...
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