Vol. 95

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2020-08-17

Sensitivity Considerations for Inline Fully Canonical Filters at Ku-Band

By Jordi Verdú Tirado, Ivan Baro, Eloi Guerrero, Patricia Silveira, Angel Triano, Gary Junkin, and Pedro de Paco
Progress In Electromagnetics Research M, Vol. 95, 125-133, 2020
doi:10.2528/PIERM20070102

Abstract

In this paper, a planar inline fully-canonical topology is proposed to reduce sensitivity to fabrication tolerances compared to conventional inline all-pole configurations. Major concerns are related with errors in the absolute positioning of via-holes to ground which affect inter-resonator (main-line) couplings. The total expanded sensitivity considering variations of the main-line couplings have been obtained for fully and non-fully canonical configurations. The result shows that sensitivity is lower in the case of fully-canonical topologies. Moreover, the allocation of the transmission zeros plays a key role in terms of sensitivity. A prototype has been designed for the Ku-band based on asymmetrical coupled lines obtaining IL=-1.6 dB, RL below -18 dB, and out-of-band rejection higher than -50 dB.

Citation


Jordi Verdú Tirado, Ivan Baro, Eloi Guerrero, Patricia Silveira, Angel Triano, Gary Junkin, and Pedro de Paco, "Sensitivity Considerations for Inline Fully Canonical Filters at Ku-Band," Progress In Electromagnetics Research M, Vol. 95, 125-133, 2020.
doi:10.2528/PIERM20070102
http://www.jpier.org/PIERM/pier.php?paper=20070102

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