Novel superconductive self-equalized planar filter configuration for C-band input multiplexers

• Published in: International journal of RF and microwave computer-aided engineering Vol. 17; no. 1; pp. 29 - 33
• Main Authors: Seaux, Jean-François, Courreges, Stanis, Bila, Stéphane, Madrangeas, Valérie, Maignan, Michel, Zanchi, Christine
• Format: Journal Article
• Language: English
• Published: Hoboken Wiley Subscription Services, Inc., A Wiley Company 01.01.2007; Wiley
• Subjects: coupling matrix; high temperature superconductor; microstrip filter
• ISSN: 1096-4290; 1099-047X
• DOI: 10.1002/mmce.20193

The objective of this paper is to present the synthesis, the design, and the measured results of an eight‐pole self‐equalized quasi‐elliptic superconductive planar filter for a satellite input multiplexer. These filters placed at the entry of the amplifying channels allow to select a part of the total band. They are narrow‐band filters (<<1.7%) around 4 GHz with a high selectivity in order to optimize the exploitation useful band. A new design is developed using cross‐loop resonators and a square patch, to annihilate the undesired couplings between the various elements. © 2006 Wiley Periodicals, Inc. Int J RF and Microwave CAE, 2007.