Wideband bandstop filter with cross-coupling

Hussein Shaman; Jia Sheng Hong

doi:10.1109/TMTT.2007.901600

Wideband bandstop filter with cross-coupling

Hussein Shaman, Jia Sheng Hong

School of Engineering & Physical Sciences

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

88 Citations (Scopus)

Abstract

A general circuit configuration for cross-coupled wideband bandstop filters is proposed. The distinct filtering characteristics of this new type of transmission line filter are investigated theoretically and experimentally. It is shown that a ripple stopband can be created, leading to a quasi-elliptic function response that enhances the rejection bandwidth. A demonstrator with approximately 80% fractional bandwidth at a mid-stopband frequency of 4 GHz is developed and presented. The proposed filter is successfully realized in theory and verified by full-wave electromagnetic simulation and the experiment. Theoretical, simulated, and measured results are in excellent agreement. © 2007 IEEE.

Original language	English
Pages (from-to)	1780-1785
Number of pages	6
Journal	IEEE Transactions on Microwave Theory and Techniques
Volume	55
Issue number	8
DOIs	https://doi.org/10.1109/TMTT.2007.901600
Publication status	Published - Aug 2007

Keywords

Microstrip filters
Transmission line filters
Wide-band bandstop filters

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10.1109/TMTT.2007.901600

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abstract = "A general circuit configuration for cross-coupled wideband bandstop filters is proposed. The distinct filtering characteristics of this new type of transmission line filter are investigated theoretically and experimentally. It is shown that a ripple stopband can be created, leading to a quasi-elliptic function response that enhances the rejection bandwidth. A demonstrator with approximately 80% fractional bandwidth at a mid-stopband frequency of 4 GHz is developed and presented. The proposed filter is successfully realized in theory and verified by full-wave electromagnetic simulation and the experiment. Theoretical, simulated, and measured results are in excellent agreement. {\textcopyright} 2007 IEEE.",

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AB - A general circuit configuration for cross-coupled wideband bandstop filters is proposed. The distinct filtering characteristics of this new type of transmission line filter are investigated theoretically and experimentally. It is shown that a ripple stopband can be created, leading to a quasi-elliptic function response that enhances the rejection bandwidth. A demonstrator with approximately 80% fractional bandwidth at a mid-stopband frequency of 4 GHz is developed and presented. The proposed filter is successfully realized in theory and verified by full-wave electromagnetic simulation and the experiment. Theoretical, simulated, and measured results are in excellent agreement. © 2007 IEEE.

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ER -

Wideband bandstop filter with cross-coupling

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Keywords

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