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Cutoff Wavenumbers of Goubau Lines
IEEE Transactions on Microwave Theory and Techniques, 1979The cutoff wavenumbers k/sub nm/ of the surface wavemodes in a Goubau line are determined by a procedure that leads directly to the eigenvalue equation in the limit of zero values for the wavenumber of the infinite exterior medium. The same result has been obtained by a much longer procedure based on an extension of previous methods used in correction ...
J.G. Fikioris, J.A. Roumeliotis
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2016 10th European Conference on Antennas and Propagation (EuCAP), 2016
We consider a homogeneous Goubau line (GL) with a lossy cover. We analyze the dispersion equation for symmetric waves with respect to the problem parameters, find radially symmetric complex waves, and examine their behavior. We show that longitudinal wavenumbers of complex waves are regular perturbations of the propagation constants of eigenwaves of ...
Ekaterina Kuzmina, Yury Shestopalov
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We consider a homogeneous Goubau line (GL) with a lossy cover. We analyze the dispersion equation for symmetric waves with respect to the problem parameters, find radially symmetric complex waves, and examine their behavior. We show that longitudinal wavenumbers of complex waves are regular perturbations of the propagation constants of eigenwaves of ...
Ekaterina Kuzmina, Yury Shestopalov
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Microvawe Discharge Properties in Goubau Line
2007 International Kharkiv Symposium Physics and Engrg. of Millimeter and Sub-Millimeter Waves (MSMW), 2007In this paper, analysis from experimental results showed some regularity in microwave discharge behavior and in signal propagation along transmission line. Microwave discharge in thin (conductor diameter three times less then oscillator wave length) single conductor transmission line represents erosion discharge of torch type.
B.P. Yefimov +2 more
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Goubau Ice Sensor Transitions for Electric Power Lines
Sensing and Imaging: An International Journal, 2009In this paper, 50 Ohm coaxial line transitions required for sensing dielectric (or ice) coatings on power transmission lines (Goubau lines) at microwave frequencies (below 10 GHz) are proposed, designed and simulated. Two different types of transitions are needed: uni- and bi-directional. Computer simulations are performed using finite element methods (
Yansheng Xu, Renato G. Bosisio
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Planar excitation of Goubau Transmission Lines for THz BioMEMS
IEEE Microwave and Wireless Components Letters, 2005We propose and demonstrate an original planar excitation of a single wire transmission line also known as Goubau-Line (G-Line). The excitation is based on an electromagnetic transition between a coplanar waveguide and the desired G-line in a planar configuration.
Treizebre, A. +2 more
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Mode spectrum of the modified Goubau line
Proceedings of the Institution of Electrical Engineers, 1979The problem of surface-wave propagation over the modified Goubau line, which consists of a Goubau line with an airgap between the conductor and dielectric, is formulated by the boundary-value method. The various modes which exist on the line as well as their cutoff conditions and the specific effects of the airgap are obtained from a solution of the ...
T.C.K. Rao, M. Hamid
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Leaky mode dispersions of Goubau lines
Microwave and Optical Technology Letters, 2007AbstractThe leaky dispersion characteristics of a Goubau line were numerically investigated for three lower‐order transverse magnetic (TM) modes by determining a complex propagation constant using Davidenko's method. As a result, physically meaningful spectral ranges of leaky modes were found to exist below the cutoff frequency of the Goubau line ...
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A Reconfigurable Goubau-Line-Based Leaky Wave Antenna
2018 2nd URSI Atlantic Radio Science Meeting (AT-RASC), 2018A periodically-modulated leaky-wave antenna based on Goubau transmission line with an electronically steerable main beam is presented. Binary switches are connected between the conductive patches along the Goubau line antenna, allowing to vary the phase constant of the propagating wave and to make the antenna reconfigurable.
Qingfeng Zhang +3 more
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Goubau Line Beam Instrumentation Testing, The Benefits
2014At JLab and Bergoz Instrumentation Goubau lines are used for beam instrumentation testing. A Goubau line differs fundamentally from standard bench testing techniques in the way it produces the electromagnetic fields which interact with the DUT. This allows to acquire complementary information about DUT characteristics.
Stulle, Frank +2 more
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Measurement of Coupling Impedances using a Goubau Line
2017Longitudinal coupling impedances can be deduced from S-Parameter measurements performed on a Goubau Line. The Goubau Line, also known as single wire line, is a variant of the coaxial wire method. Both setups use a wire for mimicking the particle beam. Coaxial tapers at the wire ends adapt wave impedance to the 50ohm impedance of coaxial cables, sources
Stulle, Frank +2 more
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