A new coupling matrix extracting method from the frequency response

Fei Li; Xueqiang Zhang; Chunguang Li; Qiang Zhang; Liang Sun; Hong Li; Aisheng He; Yusheng He

doi:10.1109/TMTT.2007.892815

A new coupling matrix extracting method from the frequency response

Fei Li^*, Xueqiang Zhang, Chunguang Li, Qiang Zhang, Liang Sun, Hong Li, Aisheng He, Yusheng He

^*Corresponding author for this work

Chinese Academy of Sciences

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

5 Citations (Scopus)

Abstract

Coupled resonators are widely used in many applications, especially for filters. It is necessary to know the coupling matrix of those resonators in order to further modify and/or optimize the existing design. In recent years, many efforts have been made to generate a coupling matrix. In this paper, a new method is proposed, which can be applied for both the synchronous and asynchronous coupled resonators. With this method, the eigenvalues and eigenvectors of the coupling matrix can be generated directly from the simulated frequency responses, and the coupling matrix can then be determined. Typical examples are illustrated for the cases such as a quadruplet with an image, real, or complex transmission zeros. The impact of loss is also discussed. As a matter of fact, this method has been successfully used in the design of high-temperature superconducting filters.

Original language	English
Pages (from-to)	760-767
Number of pages	8
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	55
Issue number	4
DOIs	https://doi.org/10.1109/TMTT.2007.892815
Publication status	Published - Apr 2007
Externally published	Yes

Keywords

Complex transmission zeros
Computer-aided analysis
Coupling matrix
Poles and zeros
Resonator filters

Access to Document

10.1109/TMTT.2007.892815

Cite this

@article{f8f7fb66c4474c42bd3f919f847a5a3c,

title = "A new coupling matrix extracting method from the frequency response",

abstract = "Coupled resonators are widely used in many applications, especially for filters. It is necessary to know the coupling matrix of those resonators in order to further modify and/or optimize the existing design. In recent years, many efforts have been made to generate a coupling matrix. In this paper, a new method is proposed, which can be applied for both the synchronous and asynchronous coupled resonators. With this method, the eigenvalues and eigenvectors of the coupling matrix can be generated directly from the simulated frequency responses, and the coupling matrix can then be determined. Typical examples are illustrated for the cases such as a quadruplet with an image, real, or complex transmission zeros. The impact of loss is also discussed. As a matter of fact, this method has been successfully used in the design of high-temperature superconducting filters.",

keywords = "Complex transmission zeros, Computer-aided analysis, Coupling matrix, Poles and zeros, Resonator filters",

author = "Fei Li and Xueqiang Zhang and Chunguang Li and Qiang Zhang and Liang Sun and Hong Li and Aisheng He and Yusheng He",

year = "2007",

month = apr,

doi = "10.1109/TMTT.2007.892815",

language = "English",

volume = "55",

pages = "760--767",

journal = "IEEE Transactions on Microwave Theory and Techniques",

issn = "0018-9480",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

number = "4",

}

TY - JOUR

T1 - A new coupling matrix extracting method from the frequency response

AU - Li, Fei

AU - Zhang, Xueqiang

AU - Li, Chunguang

AU - Zhang, Qiang

AU - Sun, Liang

AU - Li, Hong

AU - He, Aisheng

AU - He, Yusheng

PY - 2007/4

Y1 - 2007/4

N2 - Coupled resonators are widely used in many applications, especially for filters. It is necessary to know the coupling matrix of those resonators in order to further modify and/or optimize the existing design. In recent years, many efforts have been made to generate a coupling matrix. In this paper, a new method is proposed, which can be applied for both the synchronous and asynchronous coupled resonators. With this method, the eigenvalues and eigenvectors of the coupling matrix can be generated directly from the simulated frequency responses, and the coupling matrix can then be determined. Typical examples are illustrated for the cases such as a quadruplet with an image, real, or complex transmission zeros. The impact of loss is also discussed. As a matter of fact, this method has been successfully used in the design of high-temperature superconducting filters.

AB - Coupled resonators are widely used in many applications, especially for filters. It is necessary to know the coupling matrix of those resonators in order to further modify and/or optimize the existing design. In recent years, many efforts have been made to generate a coupling matrix. In this paper, a new method is proposed, which can be applied for both the synchronous and asynchronous coupled resonators. With this method, the eigenvalues and eigenvectors of the coupling matrix can be generated directly from the simulated frequency responses, and the coupling matrix can then be determined. Typical examples are illustrated for the cases such as a quadruplet with an image, real, or complex transmission zeros. The impact of loss is also discussed. As a matter of fact, this method has been successfully used in the design of high-temperature superconducting filters.

KW - Complex transmission zeros

KW - Computer-aided analysis

KW - Coupling matrix

KW - Poles and zeros

KW - Resonator filters

UR - http://www.scopus.com/inward/record.url?scp=34147100103&partnerID=8YFLogxK

U2 - 10.1109/TMTT.2007.892815

DO - 10.1109/TMTT.2007.892815

M3 - Article

AN - SCOPUS:34147100103

SN - 0018-9480

VL - 55

SP - 760

EP - 767

JO - IEEE Transactions on Microwave Theory and Techniques

JF - IEEE Transactions on Microwave Theory and Techniques

IS - 4

ER -

A new coupling matrix extracting method from the frequency response

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this