Abstract
This paper presents a compact varactor-tuned dual-band bandpass filter with independently tunable passbands and high selectivity. The filter consists of two varactor-loaded half-wavelength dual mode resonators, each of which features independent tunability of odd-and even-mode resonant frequencies by varying the capacitances of the corresponding loading varactor diodes. Benefiting from this feature, the filter offers two independently controllable passbands. In addition, hook-shape feed lines are utilized to create transmission zeros between the two passbands, which enhances the selectivity of the filter.
| Original language | English |
|---|---|
| Article number | 20190237 |
| Journal | IEICE Electronics Express |
| Volume | 16 |
| Issue number | 11 |
| DOIs | |
| Publication status | Published - 2019 |
Bibliographical note
Publisher Copyright:© 2019 The Institute of Electronics, Information and Communication Engineers.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
Keywords
- Compact
- Dual-band filter
- High selectivity
- Tunable
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
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