A capacitive SIW discontinuity for impedance matching
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Date
Authors
Smith, James Nathan
Stander, Tinus
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Electrical and Electronics Engineers
Abstract
We present a shunt capacitive substrate-integrated waveguide (SIW) discontinuity for the first time. The discontinuity is parametrically characterized in terms of its reactive impedance, and an equivalent circuit model is presented and validated. $C$ -band prototypes are manufactured and measured, confirming the simulated results. The utility of the discontinuity is then demonstrated as a part of a matching network for an $S$ -band amplifier. A simple synthesis method for the matching networks is presented, which requires minimal numerical optimization. The amplifier is prototyped and measured and found to be in good agreement with simulation.
Description
Keywords
Rectangular waveguides, Impedance matching, Waveguide discontinuities, Equivalent circuits, Manufacturing, Packaging, Integrated circuit modeling, Substrate-integrated waveguide (SIW), S-band, Radio frequency amplifiers, Circuit models, C-band
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Citation
Smith, J.N. & Stander, T. 2019, 'A capacitive SIW discontinuity for impedance matching', IEEE Transactions on Components, Packaging and Manufacturing Technology, vol. 9, no. 11, pp. 2257-2266.