A Dual-Mode Frequency Reconfigurable Waveguide Filter with a Constant Frequency Spacing between Transmission Zeros
| Autor: | B. Gowrish, Raafat R. Mansour |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Physics
Waveguide filter business.industry 020208 electrical & electronic engineering Bandwidth (signal processing) Dual mode 020206 networking & telecommunications 02 engineering and technology Transmission zeros Optics 0202 electrical engineering electronic engineering information engineering Constant frequency Prototype filter business |
| Zdroj: | 2020 IEEE/MTT-S International Microwave Symposium (IMS). |
| DOI: | 10.1109/ims30576.2020.9223839 |
| Popis: | This paper presents a novel frequency reconfigurable dual-mode waveguide filter with elliptic response. The proposed filter maintains a constant absolute bandwidth and a constant rejection bandwidth (frequency spacing between transmission zeros) over the tuning range. Furthermore, the filter can be tuned using a single tuning mechanism. A 4th order prototype filter at 11.5 GHz with 50 MHz bandwidth and 2 symmetric transmission zeros (± 45 MHz) is fabricated and measured. The measured tuning range of the filter is 390 MHz within which the absolute bandwidth variation is within ±1 MHz. In-addition, the measured frequency spacing between the transmission zeros varies well within ±2 MHz over the entire tuning range. The proposed filter promises to be useful for flexible payloads in aerospace applications. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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