A proposal for design of 2 – 4 GHz wideband bandpass filter using suspended substrate stripline for passive radar systems
DOI:
https://doi.org/10.54939/1859-1043.j.mst.99.2024.35-43Keywords:
Bandpass filters; Wideband; Low loss; Electronic warfare systems.Abstract
This article proposes a solution to design of front-end bandpass filters which finds application in wideband receivers for passive radar systems. The structure employs suspended substrate stripline as base transmission lines, dual-frequency resonators, and broad-side coupling patterns to render a wideband, steep cutoff and low-loss bandpass filter that aims at replacing lossy microstrip-based or bulky waveguide-based filters. The structure is able to scale to different operating frequency ranges in electronic warfare systems.
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