Realisation of Four Transmission Zeroes in a Four-Pole Superconducting Microstrip Using Cross-Shaped Spiral Resonators

Guoyong Zhang; Michael Lancaster; Frederick Huang

doi:10.1109/TASC.2005.859047

Realisation of Four Transmission Zeroes in a Four-Pole Superconducting Microstrip Using Cross-Shaped Spiral Resonators

Guoyong Zhang, Michael Lancaster, Frederick Huang

Electronic, Electrical and Systems Engineering

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The realization of four finite transmission zeros with high-temperature superconducting microstrip narrow-band bandpass filter using four cross-shaped spiral resonators is described for the fully canonical case. The approach is based on the "N + 2" transversal coupling matrix, which is composed of main direct coupling as well as source/load coupling. The filter, with 0.75% bandwidth, 3.25 MHz, at 408-MHz band, is to be used for a radio astronomy application at Jodrell Bank Observatory, U.K. The measured results match well with both theoretical results and simulated results, except for a small center frequency offset.

Original language	English
Pages (from-to)	3927-3931
Number of pages	5
Journal	IEEE Transactions on Applied Superconductivity
Volume	15
Issue number	4
DOIs	https://doi.org/10.1109/TASC.2005.859047
Publication status	Published - 1 Dec 2005

Keywords

coupling matrix
bandpass filter
canonical and source/load
superconducting
microstrip

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10.1109/TASC.2005.859047

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abstract = "The realization of four finite transmission zeros with high-temperature superconducting microstrip narrow-band bandpass filter using four cross-shaped spiral resonators is described for the fully canonical case. The approach is based on the {"}N + 2{"} transversal coupling matrix, which is composed of main direct coupling as well as source/load coupling. The filter, with 0.75% bandwidth, 3.25 MHz, at 408-MHz band, is to be used for a radio astronomy application at Jodrell Bank Observatory, U.K. The measured results match well with both theoretical results and simulated results, except for a small center frequency offset.",

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AU - Lancaster, Michael

AU - Huang, Frederick

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N2 - The realization of four finite transmission zeros with high-temperature superconducting microstrip narrow-band bandpass filter using four cross-shaped spiral resonators is described for the fully canonical case. The approach is based on the "N + 2" transversal coupling matrix, which is composed of main direct coupling as well as source/load coupling. The filter, with 0.75% bandwidth, 3.25 MHz, at 408-MHz band, is to be used for a radio astronomy application at Jodrell Bank Observatory, U.K. The measured results match well with both theoretical results and simulated results, except for a small center frequency offset.

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JO - IEEE Transactions on Applied Superconductivity

JF - IEEE Transactions on Applied Superconductivity

IS - 4

ER -

Realisation of Four Transmission Zeroes in a Four-Pole Superconducting Microstrip Using Cross-Shaped Spiral Resonators

Abstract

Keywords

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