A Wide Electronically Tunable Cavity Filter Using Thin-Film Barium-Strontium-Titanate Varactors
A three-pole wide electronically tunable filter based on thin film barium-strontium-titanate varactors is presented. This filter has a wide tuning range about 120% with a low bias voltage of 25V, a stable operating performance and a firm structure. The frequencies of this filter tunes from 518MHz at 0V bias voltage to 1.14GHz at 25V bias voltage and the mid-band insertion loss is 4dB. The 1-dB bandwidth is 24MHz at 518MHz and increase to 52MHz at 1.14GHz. The filter has a high tuning speed.
Authors
- Shuwen Jiang (ORCID: https://orcid.org/0000-0002-9161-9647)
- Jie Yang (ORCID: https://orcid.org/0000-0003-0423-4157)
Institutions
- University of Electronic Science and Technology of China (CN)
Publication Details
- Published
- 2024-09-22
- DOI
- https://doi.org/10.1109/uffc-js60046.2024.10793529
- Primary Topic
- Photonic and Optical Devices
- Type
- article
- Field-Weighted Citation Impact
- 0.00