Resonances in a semiinfinite waveguide with iris in relation to the excitation of higher-order modes

Usanov, D. A.; Gorbatov, S. S.; Orlov, V. E.; Wenig, S. B.

doi:10.1134/1.1315508

Cited by 8 publications

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“…In particular, in [1, 2], resonant phenomena in a waveguide system containing a capacitive iris and a short-circuit plunger were described. The appearance of resonances was observed for a distance of about λ W /100 between the iris and the short-circuit plunger, where λ W is the wavelength in a waveguide [1,2].The purpose of the present paper is to study possibilities of the appearance of such resonant reflection characteristics in a microstrip system. Figure 1 shows a sketch of the proposed microstrip analog of the waveguide systems described in [1,2] .…”

mentioning

confidence: 93%

“…The appearance of resonances was observed for a distance of about λ W /100 between the iris and the short-circuit plunger, where λ W is the wavelength in a waveguide [1,2].…”

mentioning

confidence: 95%

mentioning

confidence: 95%

“…Figure 1 shows a sketch of the proposed microstrip analog of the waveguide systems described in [1,2] . The dimensions of dielectric substrate 1 of the microstrip line are Fig.…”

mentioning

confidence: 99%

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Resonances in a Microstrip System with an Iris and a Short-Circuit Plunger

Усанов

Gorbatov

2005

Radiophys Quantum Electron

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We reveal resonant reflection in a microstrip system with an iris and a short-circuit plunger for distances between the iris and the plunger that are much less than the wavelength in the transmission line. It is shown that the studied system can be used for design of novel microwave devices, including semiconductor ones, with controllable characteristics and decreased sizes.When designing waveguide systems, it is usually assumed that they ensure propagation conditions only for the fundamental wave. The same assumption is used when designing devices with resonant characteristics (an inductive rod with a capacitive gap, a resonant iris, etc.). Such devices are widely used in practice, e.g., for designing semiconductor microwave devices intended for operation at high-power levels.Analyzing the physical features of operation of such devices, it is usually noted that the fundamental-wave field can significantly be distorted in the vicinity of a nonuniformity (a rod or an iris), which is related to excitation of rapidly attenuated higher-order waves. At the same time, the role of the near field in the vicinity of a nonuniformity can be significant if, e.g., a reflecting plate is located in the neighborhood of the nonuniformity. In particular, in [1, 2], resonant phenomena in a waveguide system containing a capacitive iris and a short-circuit plunger were described. The appearance of resonances was observed for a distance of about λ W /100 between the iris and the short-circuit plunger, where λ W is the wavelength in a waveguide [1,2].The purpose of the present paper is to study possibilities of the appearance of such resonant reflection characteristics in a microstrip system. Figure 1 shows a sketch of the proposed microstrip analog of the waveguide systems described in [1,2] . The dimensions of dielectric substrate 1 of the microstrip line are Fig. 1.

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mentioning

confidence: 93%

“…The appearance of resonances was observed for a distance of about λ W /100 between the iris and the short-circuit plunger, where λ W is the wavelength in a waveguide [1,2].…”

mentioning

confidence: 95%

mentioning

confidence: 95%

“…Figure 1 shows a sketch of the proposed microstrip analog of the waveguide systems described in [1,2] . The dimensions of dielectric substrate 1 of the microstrip line are Fig.…”

mentioning

confidence: 99%

See 2 more Smart Citations

Resonances in a Microstrip System with an Iris and a Short-Circuit Plunger

Усанов

Gorbatov

2005

Radiophys Quantum Electron

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“…However, the geometry of these layers is quite complicated (3D cells), and it is not possible to increase the surface inductance keeping the thickness small. Another possible cause for a resonance response can be local reactive fields generated at inhomogeneities [2] or cracks [3].…”

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Resonant Reflection From Dipole Arrays Located Very Near To Conducting Planes

Belov¹,

Tretyakov²

2002

Journal of Electromagnetic Waves and Applications

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Abstract-Plane-wave reflection from regular arrays of small particles positioned very near to an ideally conducting plane is theoretically studied. It is found that extremely thin (in wavelength) coverings with resonant properties can be realized if the array particles are small dipole antennas loaded by bulk inductances. This offers a possibility to realize an artificial magnetic conductor as a thin covering over conducting bodies. Dependencies of the resonance frequency and the resonant curve width on geometrical parameters are given. The theory is supported by numerical examples.

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Near-field microwave microscopy. Capabilities. Application areas

Усанов

Skripal

2012

2012 19th International Conference on Microwaves, Radar &Amp; Wireless Communications

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Resonances in a semiinfinite waveguide with iris in relation to the excitation of higher-order modes

Cited by 8 publications

References 0 publications

Resonances in a Microstrip System with an Iris and a Short-Circuit Plunger

Resonances in a Microstrip System with an Iris and a Short-Circuit Plunger

Resonant Reflection From Dipole Arrays Located Very Near To Conducting Planes

Near-field microwave microscopy. Capabilities. Application areas

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