Abstract
A compact and independently switchable dual-band bandpass filter is presented. To achieve high selectivity response, transmission zeros beside the two passbands are generated due to crossed coupling. On the other hand, the use of quarter-wavelength stepped-impedance resonators can not only miniaturise circuit size but also widen the stopband by arranging the resonant frequencies in a stagger with the same fundamental frequency. The pin diodes are loaded at the end of the resonators as the switching devices to independently control each passband.
| Original language | English |
|---|---|
| Pages (from-to) | 1275-1277 |
| Number of pages | 3 |
| Journal | Electronics Letters |
| Volume | 49 |
| Issue number | 20 |
| DOIs | |
| State | Published - 26 Sep 2013 |