Practical Circuit-Based Design Approach for Waveguide Lowpass Filter with Extremely Steep Skirt Response

This paper presents a practical circuit-based design approach for a waveguide lowpass filter with a steep skirt response. For efficient filter design, the proposed structure employs a cascade of troughs with the same physical dimensions. Having identical troughs in most parts of a filter structure g...

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Bibliographic Details
Published in:	IEEE access Vol. 12; p. 1
Main Authors:	Lee, Sanggu, Lee, Jongheun, Baek, Duccki, Lee, Pilyong, Lee, Juseop
Format:	Journal Article
Language:	English
Published:	Piscataway IEEE 01-01-2024 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects:	Analytical models Circuit Circuit design Circuit synthesis Electromagnetic waveguides Electromagnetics Equivalent circuits Filter design (mathematics) Information filters Integrated circuit modeling Low pass filters lowpass Passband trough waveguide Waveguide components Waveguides WR-75
Online Access:	Get full text
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Summary:	This paper presents a practical circuit-based design approach for a waveguide lowpass filter with a steep skirt response. For efficient filter design, the proposed structure employs a cascade of troughs with the same physical dimensions. Having identical troughs in most parts of a filter structure greatly alleviates the design difficulty. In addition, our filter design approach is largely based on circuit analysis rather than electromagnetic simulations, greatly expediting filter designs. A WR-75 waveguide lowpass filter example has been designed, fabricated, and measured for demonstration.
ISSN:	2169-3536 2169-3536
DOI:	10.1109/ACCESS.2024.3373611