This paper proposes a new coupling matrix synthesis technique called the coupling matrix compression technique, which focuses on reducing the dimension of the N+2 coupling matrix. The presented coupling matrices can be compressed, and this technique can be used to design dual-mode resonators for high-isolation dual-band filters. One dual-mode resonator is represented as two closely coupled resonators when using this technique. The formulae for resonant frequencies and ωm in dual-mode theory are also derived in this paper. A dual-mode embedded hairpin resonator is designed and analyzed using this technique, and a dual-band filter using the proposed resonators is designed and fabricated to validate the proposed technique.
|Number of pages
|IEEE Transactions on Microwave Theory and Techniques
|Early online date
|27 Mar 2018
|Published - Jun 2018
- Coupling matrix for filter synthesis
- Dual band
- microwave filters.
- Microwave theory and techniques
- Transmission line matrix methods
ASJC Scopus subject areas
- Condensed Matter Physics
- Electrical and Electronic Engineering