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2024-11-20
Miniaturized Coplanar Waveguide to Rectangular Waveguide Transition Using Integrated Resonators and Variable Housing
By
Progress In Electromagnetics Research Letters, Vol. 123, 77-82, 2025
Abstract
In this paper, a miniaturized coplanar waveguide (CPW) to rectangular waveguide (RGW) transition using integrated resonators and variable housing is proposed. By properly designing the dimensions of the integrated resonators and variable housing, a compact and broadband transition can be accomplished. The -15-dB fractional bandwidth of the transition is as broad as 45.2%, which ranges from 8.21 GHz to 13 GHz, covering the whole X-band (8.2-12.4 GHz). Besides, the transition size is as small as 3.94 mm. To reduce the mechanical complexity, the housing height is from 24.5 mm to 22.86 mm, which is equal to the height of the rectangular waveguide. The -15-dB fractional bandwidth of the transition is as broad as 45.5%, which ranges from 8.18 GHz to 13 GHz, encompassing the whole X-band. Besides, the transition size is still as small as 3.94 mm. To verify the simulations, a back-to-back CPW-to-RWG transition is fabricated and measured. The simulation and measurement results are in good agreement.
Citation
Ting-Tzu Cho, and Chun-Long Wang, "Miniaturized Coplanar Waveguide to Rectangular Waveguide Transition Using Integrated Resonators and Variable Housing," Progress In Electromagnetics Research Letters, Vol. 123, 77-82, 2025.
doi:10.2528/PIERL24093001
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