Abstract
A wide tuning range filter is proposed based on lumped-distributed capacitively-coupled transmission lines. The proposed structure maintains a constant inter-resonator coupling factor over a wide centre-frequency tuning range leading to a constant fractional bandwidth design. A bandpass filter with a two-octave tuning range has been designed, fabricated and measured
| Translated title of the contribution | Tunable lumped-distributed capacitively-coupled transmission-line filter |
|---|---|
| Original language | English |
| Pages (from-to) | 434 - 436 |
| Journal | Electronics Letters |
| Volume | 40 |
| Issue number | 7 |
| DOIs | |
| Publication status | Published - Apr 2004 |
Bibliographical note
Publisher: Institution of Electrical Engineers (IEE)Rose publication type: Journal article
Sponsorship: This work has been performed in the framework
of the IST project IST-2001–34091 SCOUT, which is partly funded by the European Union. The authors would like to acknowledge the contributions of their colleagues
Keywords
- band-pass filters
- coupled circuits
- coupled transmission lines
- resonator filters