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In this letter, a novel Ultra-Wideband wearable antenna with dual-notched-band is proposed. Firstly, an original UWB characteristic is achieved by using a modified microstrip-fed monopole hexagonal antenna. Secondly, a defected microstrip (DMS) slot is etched on the microstrip feed line to produce a notch band for WiMAX system. Thirdly, a defected ground structure (DGS) is etched upright down of the...
In this paper, a novel diplexer with a common square ring resonator for WCDMA system is proposed. A square ring resonator is perturbed by a square patch, and two degenerated modes are excited. Each mode is designed for an individual channel of the diplexer. Then two hairpin resonator is designed and coupled to the common dual-mode resonator. In order to improve the coupling between common resonator...
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