Title :
Two types of near-field microwave imaging probes
Author :
Hyeok-Woo Son ; Young-Ki Cho
Author_Institution :
Sch. of Electron. Eng., Kyungpook Nat. Univ., Daegu, South Korea
Abstract :
We consider two types of near-field microwave imaging probes. One employs the small circular ridged aperture and the other employs unsymmetrical transmission cavity whose closed ends comprise the small circular aperture with no ridge and capacitive iris of double ridge type which is placed half waveguide wavelength apart from the circular aperture. The relationship between working principles of the two types of probes is discussed in both transmission efficiency through a small aperture and spatial confinement of the electromagnetic energy.
Keywords :
circular waveguides; microwave imaging; probes; aperture confinement; capacitive iris; double ridge type; electromagnetic energy; half waveguide wavelength; near-field microwave imaging probe; small circular ridged aperture; spatial confinement; unsymmetrical transmission cavity; Apertures; Cavity resonators; Couplings; Electromagnetic waveguides; Iris; Microwave theory and techniques; Probes;
Conference_Titel :
General Assembly and Scientific Symposium (URSI GASS), 2014 XXXIth URSI
Conference_Location :
Beijing
DOI :
10.1109/URSIGASS.2014.6929095
