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Electronically switchable microwave filters are significant in increasing the capability of wireless communication and cognitive radios which is making them highly considerable for research and development. This paper describes and delves into the design of novel microwave switchable band-stop to bandpass filters. The filter is composed of stepped impedance resonators and can be switched to exhibit...
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;...
A new class of reconfigurable bandpass filter based on parallel-coupled switched delay line approach is presented in this paper. The approach allows both center frequency and passband bandwidth to be reconfigured electronically. In contrast to conventional approach, the effects of the switch losses are relatively insignificant and can be treated as an auxiliary effect and therefore the filter has...
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