SENSITIVITY CONSIDERATIONS FOR INLINE FULLY CANONICAL FILTERS AT KU-BAND

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 (mainlin...

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Veröffentlicht in:Progress in electromagnetics research M Pier M 2020-01, Vol.95, p.125-133
Hauptverfasser: Tirado, Jordi Verdu, Baro, Ivan, Guerrero, Eloi, Silveira, Patricia, Triano, Angel, Junkin, Gary, Paco, Pedro de
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container_title Progress in electromagnetics research M Pier M
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creator Tirado, Jordi Verdu
Baro, Ivan
Guerrero, Eloi
Silveira, Patricia
Triano, Angel
Junkin, Gary
Paco, Pedro de
description 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 (mainline) 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 =--1.6dB, RL below--18dB, and out-of-band rejection higher than--50 dB.
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subjects Design and construction
Electric filters
Resonators
Satellite communications
title SENSITIVITY CONSIDERATIONS FOR INLINE FULLY CANONICAL FILTERS AT KU-BAND
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