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UWB stripline coupler with low loss and ripple

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conference contribution
posted on 18.06.2020, 01:00 by Ali Agharasuli, Mehdi Karimi Mehr, Omid Manoochehri, Danilo Erricolo
An asymmetric multi-section ultra-wide band
stripline coupler with two coupled parallel stripline is proposed.
The primary features of the coupler include operating frequency from 2 GHz to 18 GHz to cover S, C, X, Ka and Ku bands; coupling coefficient below -18 dB; return loss of -20 dB for all the ports; minimum directivity of 25 dB; small size and low losses, which make it appropriate for applications, where the available space is limited. The coupler parameter values are obtained after a two
step optimization process using i) a genetic algorithm with Matlab; and, ii) a particle swarm algorithm with HFSS software. The whole structure is simulated, fabricated and measured. There is an excellent agreement between measured and simulated results.



Ali Agharasuli, Mehdi Karimi Mehr, Omid Manoochehri, and Danilo Erricolo, “UWB asymmetric stripline coupler with low loss and ripple,” International Conference on Electromagnetics in Advanced Applications (ICEAA 2019), Granada, Spain, Sep. 9-13, 2019.






Electronic ISBN: 978-1-7281-0563-5 USB ISBN: 978-1-7281-0562-8 Print on Demand(PoD) ISBN: 978-1-7281-0564-2

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