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Pseudo-elliptic dual-band filters based on TM dual-mode cavities

  • Valeria Nocella (a1), Luca Pelliccia (a2), Hamza El Ghannudi (a2) (a3), Cristiano Tomassoni (a1) and Roberto Sorrentino (a1)...

Abstract

This paper presents possible configurations of dual band filters based on transverse magnetic (TM) Dual mode cavities. The concept is to use TM dual-mode cavities in order to design compact dual band filters. High flexibility is obtained in terms of transmission zero (TZ) positioning. By using this approach a number of TZs up to the number of poles is attainable. Zeros can be placed in both the lower and upper stop-bands as well as between the two pass-bands to increase their insulation. The use of TM cavities allows a dramatic reduction of the filter length without significantly reducing the RF performances. Two three-cavity TM dual-band filters with six symmetric and asymmetric TZs have been designed and manufactured to validate the proposed geometry.

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Corresponding author

Corresponding author: V. Nocella Email: valeria.nocella@studenti.unipg.it

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[9]Nocella, V.; Cacciamani, F.; Tomassoni, C.; Sorrentino, R.; Pelliccia, L.: Dual-band filters based on TM dual-mode cavities, in Microwave Conf. (EuMC), 2014 44th European, 6–9 October 2014, 179–182. doi: 10.1109/EuMC.2014.698639

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Pseudo-elliptic dual-band filters based on TM dual-mode cavities

  • Valeria Nocella (a1), Luca Pelliccia (a2), Hamza El Ghannudi (a2) (a3), Cristiano Tomassoni (a1) and Roberto Sorrentino (a1)...

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