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An absorptive Single Pole Double Throw (SPDT) switch using cascaded switchable parallel-coupled stub resonator and switchable radial stub resonator is proposed in this paper. By using mathematical model, theories of the switchable resonators are discussed. The switchable resonators are reconfigured between bandstop and allpass response in the absorptive SPDT switch design. The allpass response is...
This paper discusses the potential application of switchable matched parallel-coupled stub resonator for isolation improvement of Single Pole Double Throw (SPDT) discrete switch in wireless communication system. In addition, an absorptive SPDT switch also can be obtained by the use of the matched resonator. Frequency spectrum at 2.010–2.025 GHz band for TD-SCDMA is chosen to demonstrate this technique...
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