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2020•IEEE Microwave and Wireless Components LettersRequires access

A Novel Waveguide-Below-Cutoff Structure With an Extended Cutoff Frequency

Hyun Ho Park

Open publisher page 3 citations

Abstract

In this letter, a novel waveguide-below-cutoff (WBC) structure with electromagnetic bandgap (EBG) surfaces is proposed to increase the cutoff frequency without sacrificing the waveguide size. To implement the proposed WBC structure, EBG arrays with various via patterns are fabricated and attached to the wide walls inside a normal rectangular waveguide. Transmission loss of the WBC structure is measured in terms of different EBG arrays, and it is confirmed that the cutoff frequency could be extended to higher frequencies accordingly.

About this research paper

What this paper is about

In this letter, a novel waveguide-below-cutoff (WBC) structure with electromagnetic bandgap (EBG) surfaces is proposed to increase the cutoff frequency without sacrificing the waveguide size. To implement the proposed WBC structure, EBG arrays with various via patterns are fabricated and attached to the wide walls inside a normal rectangular waveguide. Transmission loss of the WBC structure is measured in terms of different EBG arrays, and it is confirmed that the cutoff frequency could be extended to higher frequencies accordingly.

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Available abstract

In this letter, a novel waveguide-below-cutoff (WBC) structure with electromagnetic bandgap (EBG) surfaces is proposed to increase the cutoff frequency without sacrificing the waveguide size. To implement the proposed WBC structure, EBG arrays with various via patterns are fabricated and attached to the wide walls inside a normal rectangular waveguide. Transmission loss of the WBC structure is measured in terms of different EBG arrays, and it is confirmed that the cutoff frequency could be extended to higher frequencies accordingly.

Key concepts: Cutoff frequency, Cutoff, Waveguide, Materials science, Frequency band, Optics, Band gap, Optoelectronics

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