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In this paper, a new switchable absorptive bandstop to bandpass filter using dual mode ring resonator is presented. This switchable filter provides two modes of operation which is absorptive bandstop and bandpass response. The first part of this paper presents a theoretical analysis of the absorptive bandstop dual mode ring resonator based on two low-Q lossy resonators topology. The operating frequency...
This paper investigated the effect of two main parameters of patch antenna by using partial ground techniques and addition of modified double W-shaped split ring resonator (MDW-SRR). The results show that these two techniques can be improving the performance of the return loss and bandwidth result of the patch antenna. The proposed antenna covers the frequency range of 1821.1 MHz to 3117.1 MHz with...
This work presented the parametric studies work on the microstrip bow-tie patch antenna with split ring resonator structures. Firstly, a basic microstrip bow-tie patch antenna had been simulated using CST Microwave Studio. Then, the split ring resonator structure had been embedded to the patch part of the bow-tie antenna. Several parametric studies on the different dimension had been considered to...
A radio-over-fiber system capable of very spectrally efficient data transmission and based on multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) is presented here. Carrier generation is the basic building block for implementation of OFDM transmission, and multicarriers can be generated using the microring resonator (MRR) system. A series of MRRs incorporated...
This paper demonstrates a reconfigurable dual-mode ring resonator matched bandstop filter. The dual-mode ring resonator structure is composed by two degenerate modes or splitting resonant frequencies using a perturbing stub. The reconfigurable dual-mode ring resonator matched bandstop filter is realized by using PIN diodes as switching elements. This reconfigurable filter provides two states of operation;...
This paper had been comparing the performance of the normal patch antenna with single complimentary SRR patch antenna. Four different shapes of single complimentary split ring resonator structure had been incorporated into the microstrip patch antenna - square, circular, triangular, and rhombic. This simulation works had been done in CST Microwave Studio simulation software. The operating frequency...
This paper discusses on the effect of the spiral split ring resonator on the truncated pyramidal microwave absorber. Split ring resonator (SRR) structure can potentially be incorporated onto the truncated pyramidal microwave absorber to increase the reflection loss performance. There are many ways to increase the pyramidal microwave absorber performance. The ways are focusing the new hybrid shapes,...
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