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In this paper, a novel factor is used to cater for fringing field effect in triangular resonators. This factor is valid for both equilateral (symmetric) and non-equilateral (non-symmetric) triangular resonators. The problem of obtaining the resonant modes of the resonator is solved using the finite element method. Finally, the procedure is used to obtain the resonant frequencies of shapes other than...
A new ultra wideband bandpass filter (UWB-BPF) using arrow coupled lines and U-slot defected ground structures (U-DGS) is proposed. The input and output feeding lines are connected to the coupled lines placed on the conductor side of the substrate while the U-slot DGS was etched from the ground side below. The effect of U-DGS slot dimensions on the operating bandpass of the filter was studied. The...
In this paper a novel design of a printed ultra-wideband (UWB) circular slot antenna with 5.5 GHz band-notched characteristics is presented. A metallic-type split ring resonator (MTSRR) is inserted inside a circular slot underneath of a circular radiating patch at the opposite side of the dielectric substrate, to obtain the band??notched function. The proposed antenna satisfies the VSWR requirement...
A novel proximity-fed UWB printed annular slot antenna with dual frequency band-notched performance is presented. By attaching a parasitic arc??strip to the microstrip feed line and etching an arc??slot in the ground plane of the antenna, dual frequency band??notched characteristics are achieved. Details of the antenna design are given. The proposed antenna is simulated, fabricated and measured. The...
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