Design of Dual Stopband Filters for Interference Suppression

Sullca, Joaquin F. Valencia; Cogollos, S.; Boria, Vicente E.; Guglielmi, M.; Bastioli, Simone; Snyder, Richard V.

doi:10.1109/ims37964.2023.10188018

2023 IEEE/MTT-S International Microwave Symposium - IMS 2023 2023

DOI: 10.1109/ims37964.2023.10188018

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Design of Dual Stopband Filters for Interference Suppression

Joaquin F. Valencia Sullca¹,

S. Cogollos²,

Vicente E. Boria³

et al.

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2024

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Single and Multiple-Band Bandpass Filters Using Bandstop Resonator Sections

Lin,

Wong,

Qian

et al. 2024

IEEE J. Microw.

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In this paper, the design methodology and implementation of single-band and multiple-band elliptic function bandpass filters (BPFs) are presented, based on the concept of bandstop resonator (BSR) sections. One or more single-mode and multiple-mode BSRs can be dangled from a non-resonant node. Each BSR can generate one reflection zeroes (RZ) and one transmission zeroes (TZ). Multiple BSR sections are used to flexibly and independently control the location and bandwidth of the stop bands and therefore the same of the passbands. The method to design single-and multiple-band elliptic function BPFs has been detailed using a number of examples based on waveguide technology. For proof of concept, a 6th-order single-band BPF with six BSR = 2 sections and a 3 rd -order dual-band BPF using three BSR = 3 sections are designed and fabricated monolithically using a selective-laser-melting (SLM) 3-D printing technique. Excellent agreement between simulated and measured results verifies the proposed design methodology and its versatility as well as the additive-manufacture approach.INDEX TERMS Bandpass filter, bandstop resonator, e-plane stubs, multiple bands, transmission zeroes, waveguide filter.

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Single and Multiple-Band Bandpass Filters Using Bandstop Resonator Sections

Lin,

Wong,

Qian

et al. 2024

IEEE J. Microw.

View full text Add to dashboard Cite

show abstract

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Design of Dual Stopband Filters for Interference Suppression

Cited by 1 publication

References 5 publications

Single and Multiple-Band Bandpass Filters Using Bandstop Resonator Sections

Single and Multiple-Band Bandpass Filters Using Bandstop Resonator Sections

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