A True Inline Coaxial-Cavity Filter with Two Symmetric Zeros

Stefano Tamiazzo (1) , Giuseppe Macchiarella (2) , Fabien Seyfert (3)

1 Commscope
2 Dipartimento di Elettronica e Informazione [Milanio]
3 FACTAS - Analyse fonctionnelle pour la conception et l'analyse de systèmes

This work deals with the design of true inline filters with two symmetric transmission zeros. A new filters category named "path filters" is introduced (including the considered filters), his general features are discussed and analyzed and a general method for the synthesis of the low-pass prototype network is proposed. To validate the proposed design approach, a coaxial-cavity filter with a true inline topology exhibiting two symmetrical transmission zeros has been designed and fabricated. The realized prototype shows a response in good agreement with the theory.

Mots clés: inline filters; coaxial resonators; transmission zeros; prototype synthesis

Domaines: Sciences de l'ingénieur [physics]; Variables complexes [math.CV]; Electronique

Stefano Tamiazzo, Giuseppe Macchiarella, Fabien Seyfert. A True Inline Coaxial-Cavity Filter with Two Symmetric Zeros. IEEE Microwave and Wireless Components Letters, 2021, pp.4. ⟨10.1109/LMWC.2021.3064201⟩. ⟨hal-03221364⟩