Abstract
In this letter, the application of a variable characteristic impedance transmission line that can be used to design a dual-band bandpass filter (BPF) is presented. The proposed filter offers a fixed first passband and a controllable second passband. The tuning of the second passband is achieved by varying the characteristic impedance of the shunt open stub of stub loaded resonator (SLR) with the help of a defected ground structure (DGS) transmission line and varactor diodes. In order to validate the theoretical predictions and simulated results, a two stage dual-band BPF with three transmission zeros was implemented and experimentally verified.
| Original language | English |
|---|---|
| Article number | 6035998 |
| Pages (from-to) | 589-591 |
| Number of pages | 3 |
| Journal | IEEE Microwave and Wireless Components Letters |
| Volume | 21 |
| Issue number | 11 |
| DOIs | |
| State | Published - 2011.11 |
Keywords
- Bandpass filter (BPF)
- defected ground structure
- dual-band filter
- stub loaded resonator
Quacquarelli Symonds(QS) Subject Topics
- Engineering - Electrical & Electronic
- Engineering - Petroleum
- Physics & Astronomy
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