Rect. waveguide H-plane filter synthesis and simulation

Version 1.1.0 (9.57 KB) by Marcis Bleiders
Synthesis and simulation of H-plane inductive iris rectangular waveguide BPF filter based on Chebyshev prototype and mode matching method
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324 Downloads
Updated 13 Feb 2023

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Main function is 'h_plane_bpf.m' with parameters explained at the beginning.
The code generates all required dimensions of filter structure as well as X,Y points suitable for importing in CST or other sofware for further verification.
Give the sythesis step some time.
Comparison of simulation results obtained by this code and CST Frequency domain solver is shown in following pictures. To obtain a good match, sufficiently tight adaptive meshing settings must be used in CST, thereby it takes some time to calculate. In case of this code, it takes only a few seconds due to analytic mode matching method.
Tested only with MATLAB 2015a.

Cite As

Marcis Bleiders (2026). Rect. waveguide H-plane filter synthesis and simulation (https://www.mathworks.com/matlabcentral/fileexchange/96697-rect-waveguide-h-plane-filter-synthesis-and-simulation), MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R2015a
Compatible with any release
Platform Compatibility
Windows macOS Linux
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Version Published Release Notes
1.1.0

*greatly improved synthesis speed by implementing use of fminbnd()
*added option so synthesize filters with rounded corners for better manufacturability. See parameter 'r_fillet'.
*fixed a few bugs in MM solver code
1.0.0