Wideband isolation-improved substrate-integrated waveguide power dividers/combiners
Published online by Cambridge University Press: 04 October 2018
Abstract
In this paper, a 3 dB H-plane substrate-integrated waveguide (SIW) power divider/combiner with improved isolation is reported. By adding two isolated ports into the Y-junction, it will perform like a multi-port coupler, so that the isolation between its dividing ports can be effectively improved as the newly-added ports are properly matched. To verify the availability and effectiveness of this concept, two prototypes, one is terminated by coaxial terminations and the other is loaded with lumped resistors, are developed. Their measured results are separately in good agreement with their corresponding simulations. Meanwhile, isolations better than 16 dB with fractional bandwidth (FBW) of 35 and 25% are achieved, respectively, as well as low phase and amplitude imbalances. Compared with some reported similar SIW power dividers, the proposed ones exhibit wider FBW with similar isolation, insertion loss, phase, and amplitude balance performance.
- Type
- Research Papers
- Information
- International Journal of Microwave and Wireless Technologies , Volume 10 , Issue 9 , November 2018 , pp. 1019 - 1027
- Copyright
- Copyright © Cambridge University Press and the European Microwave Association 2018
References
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