Abstract
This paper reports an investigation of performance enhancement for electronically tunable microstrip filter. Based on the effects of lossy components on passband response of a bandpass filter, a new concept to improve the performance (passband flatness and selectivity) is proposed. Unlike other techniques published, this new concept results in nonuniform Q distribution by loading lumped elements to reduce the unloaded Q of the resonator. As examples, fixed and tunable microstrip combline filters with narrow band are simulated and fabricated to validate the proposed concept.
| Original language | English |
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| Title of host publication | 41st European Microwave Week 2011 |
| Publisher | IEEE |
| Pages | 472-475 |
| Number of pages | 4 |
| ISBN (Electronic) | 9782874870224 |
| ISBN (Print) | 9781612842356 |
| DOIs | |
| Publication status | Published - 15 Dec 2011 |
| Event | 41st European Microwave Conference 2011 - Manchester, United Kingdom Duration: 10 Oct 2011 → 13 Oct 2011 |
Conference
| Conference | 41st European Microwave Conference 2011 |
|---|---|
| Country/Territory | United Kingdom |
| City | Manchester |
| Period | 10/10/11 → 13/10/11 |
Keywords
- Filter predistortion
- lossy circuit
- nonuniform Q distribution
- tunable microstrip filter
ASJC Scopus subject areas
- Electrical and Electronic Engineering