High power and immunity high Q PMC packaged dual notch high power suspended defected stripline filter

Ahmed F. Elshafey; Mahmoud A. Abdalla

doi:10.1515/freq-2020-0216

Article

High power and immunity high Q PMC packaged dual notch high power suspended defected stripline filter

Ahmed F. Elshafey and Mahmoud A. Abdalla

Published/Copyright: June 11, 2021

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From the journal Frequenz Volume 75 Issue 11-12

Abstract

In this paper, a novel high power high selective and high-Q packaged dual band air suspended stripline notch filter is presented. The notch frequencies, at 2.4 and 3.5 GHz, were designed using defected suspended stripline (DSS). Moreover, the filter was packaged and shielded using perfect magnetic conductor (PMC). The DSS were designed using two frequency independent non-coupled cascaded U shape resonators. It has been proved that the filter attenuation has a sharp rejection characteristic (measured) at the two resonance frequencies (27 dB at 2.4 GHz) and (30 dB at 3.5 GHz) with Quality factor = (18). So, the sharp measured filter attenuation performance was further enhanced to become 38 dB at the two frequencies. The achieved results are discussed and confirmed using different circuit, 3D EM and experimental measurements. The designed filter can find many medium powers up to 20 kW applications.

Keywords: artificial magnetic conductor (AMC); dual band notch filter; high power filter; suspended stripline structures

Corresponding author: Mahmoud A. Abdalla, Electronic Engineering Department, Electromagnetic Waves Group, Military Technical College, Cairo, Egypt, E-mail: maaabdalla@ieee.org

Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
Research funding: None declared.
Conflict of interest statement: The authors declare no conflicts of interest regarding this article.

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Received: 2020-12-23

Accepted: 2021-05-31

Published Online: 2021-06-11

Published in Print: 2021-12-20

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Articles in the same Issue

https://doi.org/10.1515/freq-2020-0216

Keywords for this article

artificial magnetic conductor (AMC); dual band notch filter; high power filter; suspended stripline structures