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Periodically Slotted Coupled Mode Leaky Coaxial Cable With Enhanced Radiation Performance [PDF]

IEEE Transactions on Antennas and Propagation, 2020
A novel technique to periodically modulate the aperture of a coupled mode leaky coaxial cable (LCX) is presented in this communication. The surface wave (monofilar mode) over the cable is modulated by periodically slotted aperture, converting it to a ...
Zeeshan Siddiqui, Sami Myllymäki, Marko Sonkki   +2 more
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Behavioral feature of the space-wave leaky mode, the surface-wave leaky mode and the bound mode

2000 IEEE MTT-S International Microwave Symposium Digest (Cat. No.00CH37017), 2002
We report here our recent discoveries relating to the dispersion behaviors of printed-circuit transmission lines. Such behaviors relate to those of both the bound dominant mode and the space-wave leaky modes propagating at rather low frequencies. The discovered behaviors affect significantly the performance of microwave and millimeter-wave integrated ...
M. Tsuji, H. Shigesawa
openaire   +1 more source

Leaky Modes of Symmetrical Groove Guide

MTT-S International Microwave Symposium Digest, 2005
Both the odd and even higher modes of groove guide, a low-loss waveguide proposed some years ago for millimeter wavelengths and of interest again today, are investigated quantitatively. We verified an early prediction that all the odd higher modes leak, and we find that all even higher modes do also.
A. A. OLINER, LAMPARIELLO, Paolo
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Leaky modes on circular optical waveguides

Applied Optics, 1976
A nonabsorbing optical waveguide of circular cross section supports leaky modes in addition to the well-known bound modes. The detailed properties of these leaky modes are determined by solving the eigenvalue equation for the modes of a circular dielectric cylinder below their cutoff frequency.
R, Sammut, A W, Snyder
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Leaky modes on W-fibers: mode structure and attenuation

Applied Optics, 1977
The mode structure of a W-fiber has been discussed in conjunction with that of an SC-fiber using the WKB approximation, and the leaky mode attenuation coefficient has been derived using Poynting's vector theorem. Furthermore, a simplified expression for the attenuation coefficient of the W-fiber has been obtained and compared with that of the SC-fiber.
M, Maeda, S, Yamada
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Quantized mode of a leaky cavity

Physical Review A, 2000
We use Thomson's classical concept of mode of a leaky cavity to develop a quantum theory of cavity damping. This theory generalizes the conventional system-reservoir theory of high-$Q$ cavity damping to arbitrary Q. The small system now consists of damped oscillators corresponding to the natural modes of the leaky cavity rather than undamped ...
S. M. Dutra, G. Nienhuis
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Failure of the leaky-mode representation near the waveguide mode cutoff

Optics Letters, 1995
Improper eigenmodes of the planar waveguide dispersion relation, or leaky modes, are often used to represent the nonbound optical field in planar waveguides. Here we show that the improper leaky solutions give an inadequate description of the nonbound field for the important case of a waveguide just below cutoff.
R E, Smith, S N, Houde-Walter
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Asymptotic solutions of the leaky modes and PML modes in a Pekeris waveguide

Wave Motion, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhu, Jianxin, Lu, Ya Yan
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Effect of periodic strain on the leaky modes in single-mode fiber

Applied Optics, 1988
The effect of periodic strain on the beat wavelength between the guided LP(01) and the leaky LP(11) modes is approximated around the LP(11) mode cutoff. An abrupt change of the beat wavelength as a function of optical wavelength signifies the onset of the cutoff region.
H, Grebel, M, Mezhoudi
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Leaky-mode resonant reflectors with extreme bandwidths

Optics Letters, 2010
We present ultrawide flat-band reflectors enabled with multilevel resonant leaky-mode structures. The reflectors are designed using particle swarm optimization. We show that three-level silicon-on-insulator structures provide bandwidths of approximately 840 nm for TE polarization and approximately 835 nm for TM polarization, across which reflectance is
Mehrdad, Shokooh-Saremi, Robert, Magnusson   +1 more
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