Spectral characteristics of an open cavity with a metal-dielectric inhomogeneity

Brovenko, A. V.; Melezhik, P. N.; Poedinchuk, A. E.

doi:10.1007/bf02676459

Cited by 5 publications

(6 citation statements)

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“…The mathematically rigorous electrodynamical model of a cell with a dielectric insert [5,6] offers its spectral characteristics (resonant frequencies, Q-factors) with any preassigned accuracy.…”

Section: Resultsmentioning

confidence: 99%

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An Open Resonance Cell for Millimeter Wave Dielectrometer Applications

Miroshnichenko¹,

Melezhik²,

Senkevich³

2008

PIER M

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Abstract-An open resonance cell (ORC) with finite-length cylindrical mirrors is suggested for making absolute measurements of complex permittivity in the case of stretched cylindrical specimens or liquid dielectrics in cylindrical containers. For H-polarization, we report ORC features simulated in rigorous electromagnetic terms using a twodimensional (2-D) model of an open resonator with cylindrical mirrors and a dielectric test rod inserted. On this basis, the ORC laboratory prototype with finite-length mirrors was built. The measurements of dielectric test rods were performed in the 10 mm wave band. In the studies of dielectric materials, E-polarized modes of the cylindricalmirror ORC demonstrate some specific features, which are discussed, too.

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Section: Resultsmentioning

confidence: 99%

“…For stretched test rods, a barrel-shaped ORC was proposed [4], the rod accommodation axially symmetric. The excitation problem has been rigorously solved for a two-dimensional (2-D) OR with inserts, dielectric [5] or metal-dielectric [6], and a method was suggested [7] for dielectric parameter determination of the specimen.…”

Section: Introductionmentioning

confidence: 99%

An Open Resonance Cell for Millimeter Wave Dielectrometer Applications

Miroshnichenko¹,

Melezhik²,

Senkevich³

2008

PIER M

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“…For certain modes in an OR with a cylindrical dielectric insert, resonant behavior of the Q-factor as a function of the diameter of a dielectric insert and its location between the resonator mirrors was observed [1,6,7].…”

Section: Introductionmentioning

confidence: 99%

“…To analyze the phenomena occurring in ORs with metal and dielectric inclusions, the methods of rigorous theory of wave diffraction by perfectly conducting nonclosed screens and the spectral theory of electromagnetic modes in an OR with metal and metal-dielectric inclusions were developed [6,7].…”

Section: Introductionmentioning

confidence: 99%

Open Resonators with Conducting Cylindrical Inserts. 1. Two-Dimensional Model

Melezhik

Miroshnichenko

Senkevich

2005

Radiophys Quantum Electron

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We present the results of computer simulation of the properties of modes in a two-dimensional open resonator with a conducting cylindrical insert. An increase in the diffraction Q-factor of the fundamental mode by 2-3 orders of magnitude due to the conducting cylindrical insert is found and studied. The prospects of using this phenomenon for controlling the spectrum, frequencies, and Q-factors of excited modes are discussed. The tunability of the open resonator with a conducting cylindrical insert for one (fundamental) mode in a wide frequency range is shown.

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“…The correction term p x can be determined from the rigorous solution of the spectral problem for twodimensional ORs with cylindrical mirrors [5], while the correction term p y is estimated from the well-known results for an OR with plane mirrors [4]:…”

Section: Introductionmentioning

confidence: 99%

Open Resonators with Conducting Cylindrical Inserts. 2. Resonators with Finite-Length Mirrors

Melezhik

Miroshnichenko

Senkevich

2005

Radiophys Quantum Electron

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We present the results of experimental studies of controlling the spectrum and Q-factors of modes in an open resonator with a conducting cylindrical insert. The phenomenon of an increase in the diffraction Q-factor is experimentally observed for the fundamental TEM 00q mode for two resonant diameters of the conducting cylindrical insert located inside the open resonator. The features of excitation of modes in an open resonator with smooth cylindrical finite-length mirrors and in an open resonator with cutoff bevels at the mirror edges are studied. Prospects for using open resonators with conducting inserts in quasi-optical devices in the millimeter-wave range are discussed.

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Spectral characteristics of an open cavity with a metal-dielectric inhomogeneity

Cited by 5 publications

References 0 publications

An Open Resonance Cell for Millimeter Wave Dielectrometer Applications

An Open Resonance Cell for Millimeter Wave Dielectrometer Applications

Open Resonators with Conducting Cylindrical Inserts. 1. Two-Dimensional Model

Open Resonators with Conducting Cylindrical Inserts. 2. Resonators with Finite-Length Mirrors

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