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The design of Log Periodic Fractal Koch antennas at four different series of iterations are discussed in this paper. This technique is used to reduce the size of the antenna. In this works 0th iteration, 1st iteration, 2nd, 3rd and 4th series iteration have been applied to the antenna and the performance of the antenna on reflection coefficient, current distribution, radiation pattern and gain are...
A dual-band textile Artificial Magnetic Conductor (AMC) sheet-like waveguide with two single-band textile diamond dipole antennas made of fleece fabric have been designed and presented in the report. The AMC structure is designed to have zero reflection phase at 2.45 GHz and 5.8 GHz with the aim to improve the transmission between antennas. The performances of two antennas with textile AMC sheet have...
This paper describe the design simulation and fabrication of wideband textile antenna. A rectangular monopole planar antenna with h slot is proposed in this paper. The antenna is made from Fleece fabric as a substrate and Shieldit fabric material as conductive element of the antenna. The optimization of the design has been done using CST Software simulation. The simulated results show that the antenna...
A wideband metamaterial antenna employing SRR loading is presented. Two designs were simulated, fabricated and measured. The bandwidth enhancement is achieved by loading SRR resonator onto a conventional monopole antenna. The SRR excited a lower resonance frequency mode which matches with the resonance frequency of the monopole antenna thereby extending the overall impedance bandwidth from 26% to...
A frequency reconfigurable microstrip patch antenna is proposed. Three switches are used to produce six reconfigurable frequencies. Those switches are positioned in the slot places underneath the patch. A reflector is placed behind the antenna. It was found that, at all frequencies, directional radiation patterns are obtained. Simulated results are used to demonstrate the performance of the antenna...
This paper describe the analysis and design for a double layer unit cell X-Band reflectarray. In this design, a novel minkowski shape structure has been developed as an auxiliary unit cell element for the dual layer X- bands reflectarray to achieve wider reflection phase. A progressive phase range wider than 360 degree has been achieved by modifies the square patch into a minkowski shape and printed...
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