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This letter presents a novel approach for providing
substrate-integrated waveguide tunable resonators by means of
placing an additional metalized via-hole on the waveguide cavity.
The via-hole contains an open-loop slot on the top metallic wall.
The dimensions, position and orientation of the open-loop slot
defines the tuning range. Fabrication of some designs reveals good
agreement between simulation and measurements. Additionally,
a preliminary prototype which sets the open-loop slot orientation
manually is also presented, achieving a continuous tuning range
CitationMira, F., Mateu, J., Collado, J. Mechanical tuning of substrate integrated waveguide resonators. "IEEE microwave and wireless components letters", 2012, vol. 22, núm. 9, p. 447-449.
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