Generalized TM Dual-Mode Cavity Filters
- 18 November 2011
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Microwave Theory and Techniques
- Vol. 59 (12), 3338-3346
- https://doi.org/10.1109/tmtt.2011.2172622
Abstract
A new cavity arrangement, namely, the generalized TM dual-mode cavity, is presented in this paper. In contrast with the previous contributions on TM dual-mode filters, the generalized TM dual-mode cavity allows the realization of both symmetric and asymmetric filtering functions, simultaneously exploiting the maximum number of finite frequency transmission zeros. The high design flexibility in terms of number and position of transmission zeros is obtained by exciting and exploiting a set of nonresonating modes. Five structure parameters are used to fully control its equivalent transversal topology. The relationship between structure parameters and filtering function realized is extensively discussed. The design of multiple cavity filters is presented along with the experimental results of a sixth-order filter having six asymmetrically located transmission zeros.Keywords
This publication has 11 references indexed in Scilit:
- Nonresonating Mode Waveguide FiltersIEEE Microwave Magazine, 2011
- TM dual-mode filters with asymmetric filtering functionsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2011
- Singlets, cascaded singlets, and the nonresonating node model for advanced modular design of elliptic filtersIEEE Microwave and Wireless Components Letters, 2004
- Advanced coupling matrix synthesis techniques for microwave filtersIEEE Transactions on Microwave Theory and Techniques, 2003
- Accurate CAD for dual mode filters in circular waveguide including tuning elementsPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- A new family of all-inductive dual-mode filtersIEEE Transactions on Microwave Theory and Techniques, 2001
- Dual mode coupling by square corner cut in resonators and filtersIEEE Transactions on Microwave Theory and Techniques, 1992
- Nonminimum-Phase Optimum-Amplitude Bandpass Waveguide FiltersIEEE Transactions on Microwave Theory and Techniques, 1974
- Narrow-Bandpass Waveguide FiltersIEEE Transactions on Microwave Theory and Techniques, 1972
- A Four-Cavity Elliptic Waveguide FilterIEEE Transactions on Microwave Theory and Techniques, 1970