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http://dx.doi.org/10.5515/KJKIEES.2014.25.12.1300

Equivalent Circuit Analysis of a Rectangular Waveguide Probe with H-type Small Aperture  

Ko, Ji-Hwan (School of Electronics Engineering, Kumoh National University of Technology)
Cho, Young-Ki (School of Electronics Engineering, Kyungpook National University)
Publication Information
The Journal of Korean Institute of Electromagnetic Engineering and Science / v.25, no.12, 2014 , pp. 1300-1305 More about this Journal
Abstract
Equivalent circuits for the waveguide probe with H-shaped small aperture, as a key ingredient of near field microwave microscope, is described along with a working principle of the probe. Small rectangular or circular aperture in comparison with the wavelength behaves like the inductive element. So adding the ridged structure (corresponding to capacitive component) to the small aperture allows the transmission resonance to occur. For verification, we represents the equivalent circuit descriptions for the two types, ridged aperture and cavity types. The values of obtained by use of the equivalent circuit approaches are compared with those obtained by use of the available numerical software. The results are also experimentally verified.
Keywords
Near-Field Microwave Microscope; Small Aperture; Ridged Aperture; Aperture Resonance; Near-Field Resonator;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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