PROJECT TITLE :
A Quasi-Planar Waveguide Tuner
ABSTRACT:
In this letter, a quasi-planar waveguide tuner is proposed, which is comprised of a main waveguide, three waveguide shorting stubs, and three ridged waveguide shorting stubs. All waveguide stubs are connected to the E-plane of the main waveguide. It can be used to replace the well-known E-H waveguide tuners with a easier structure, smaller size, and lower fabrication cost. The matching ability is verified by using the quasi-planar tuner to match the discontinuities from an inductive iris and a capacitive iris. The matching results are shown to be the most effective compared with that of 3 other typical tuners, an E-plane tuner, an H-plane tuner, and an E-H tuner. Tested results also are presented.
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