Abstract
This paper presents a novel frequency reconfigurable microstrip bandpass filter (BPF) with wide tuning range based on parallel-coupled dual-mode resonator. The addition of the dual-mode resonator substantially suppresses the unwanted passband close to 2f0. In particular, each of the unequal width parallel coupled lines has a varactor diode connected to one end of the coupled-line while the other end is connected to a dual-mode resonator. A two-pole BPF was designed and fabricated and tested demonstrating 1.37:1 center frequency tuning. Furthermore the insertion loss within the frequency tuning range is 1.3 to 1.7 dB and the return loss greater than 20 dB.
Original language | English |
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Title of host publication | 12th International Conference on Modern Circuits and Systems Technologies 2023 |
Publisher | IEEE |
ISBN (Electronic) | 9798350321074 |
DOIs | |
Publication status | Published - 17 Jul 2023 |
Event | 12th International Conference on Modern Circuits and Systems Technologies 2023 - Athens, Greece Duration: 28 Jun 2023 → 30 Jun 2023 |
Conference
Conference | 12th International Conference on Modern Circuits and Systems Technologies 2023 |
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Abbreviated title | MOCAST 2023 |
Country/Territory | Greece |
City | Athens |
Period | 28/06/23 → 30/06/23 |
Keywords
- bandpass filter (BPF)
- dual- mode resonator
- varactor diode
ASJC Scopus subject areas
- Computer Networks and Communications
- Hardware and Architecture
- Information Systems
- Energy Engineering and Power Technology
- Electrical and Electronic Engineering