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In this paper, the simulation and measurement results of dual-band planar inverted-F antenna for application in ISM, HIPERLAN, and UNII bands are presented. The dualband planar inverted-F antenna is fabricated on a FR4 substrate. The lower band is associated with the longer open strips while the upper band is associated with the shorter open strip of the proposed dual-band planar inverted-F antenna...
In this paper, the simulation and measurement results of triple-band planar monopole antenna for application in WLAN and WiMAX bands were presented. The triple-band planar monopole antenna was fabricated on a FR4 substrate. The proposed planar monopole antenna comprised three radiating elements with a longer, middle, and shorter radiating strips. The longer strip controls the lower band of the proposed...
In this study, a new branch-line resonator is presented for dual-band filter design. By reducing one open stub of the conventional branch-line resonator, the filter structure will be simplified. Besides, since the external quality factor and center frequencies of two passbands can also be designed individually, the design procedure is therefore simplified. For demonstration, two dual-band filters...
In this study, a wideband diplexer is proposed and the associated design concepts are also briefly discussed. First, two broadside-coupled bandpass filters are employed in the design phase so as to broaden the passband bandwidths of proposed diplexer. Next by adopting the stepped-impedance resonators in the design of the bandpass filter (BPF A) for the low-band channel, one may shift its spurious...
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