TELECOMMUNICATIONS AND RADIO ENGINEERING - 2011 Vol. 70,
No 5 		 

 

 

 

A SLOT RADIATOR IN A COAXIAL LINE


V.A. Katrich, V.A. Lyaschenko & N.V. Medvedev
V. Karazin National University of Kharkiv,
4, Svoboda Square, Kharkiv 61077, Ukraine
Address all correspondence to N.V. Medvedev E-mail: Med.Nick.science@rambler.ru

Abstract
The method of magnetomotive forces is applied to determine characteristics of a transverse slot cut in the external conductor of a coaxial line which provides an analysis within a broad range of wavelengths including the multimode regime. Amplitudes of spatial harmonics in the distribution function of the tangential electric field component across the slot surface are investigated. The radiation and reflection factors of the slot are analyzed in dependence on the slot sizes, geometrical parameters of the coaxial line and permittivities of the dielectric materials filling the interior and exterior regions of the coaxial line

KEY WORDS:transverse slot, coaxial line, fundamental mode, multimode regime, power coefficients

References

  1. Breynbart, A.Ya., (1976), Radio communication with mobile facilities in underground tunnels by means of radiating cables, Zarubezhnaya Radioelektronika. 1:110-130 (in Russian).
  2. Delogne, P.P. and Deryck, L., (1980), Underground Use of a Coaxial Cable with Leaky Sections, IRE Trans. on Antennas and Propagation. 28(6):875-883.
  3. Kiang, J.F., (1997), Radiation Properties of Circumferential Slots on a Coaxial Cable, IEEE Trans. on Antennas and Propagation. 45(1):102-107.
  4. Kiang, J.F., (1998), Analysis of Linear Coaxial Antennas, IEEE Trans. on Antennas and Propagation. 46(5):636-642.
  5. Wang, J.H. and Mei, K.K., (2001), Theory and Analysis of Leaky Coaxial Cables with Periodic Slots, IEEE Trans. on Antennas and Propagation. 49(12):1723-1732.
  6. Saito, K., Hayashi, Y., Yoshimura, H., and Ito, K., (2000), Heating Characteristics of Array Applicator Composed of two Coaxial Slot Antennas for Microwave Coagulation Therapy, IEEE Transactions on Microwave Theory and Techniques. 48(11):1800-1806.
  7. Pogarsky, S.A. and Chumachenko, V.A., (2002), Diffraction of the T-mode of a coaxial waveguide by a periodic structure of azimuthal slots, Visn. KhNU. Radiofizika ta Elektronika. 544(1):117-120 (in Russian).
  8. Mishustin, B.A., Redkina, E.A., and Slezkin, V.G., (2005), Coaxial collinear antennas of improved manufacturability, CryMiKo-05, Sevastopol, pp. 406-407 (in Russian).
  9. Kim, D.H. and Eom, H.J., (2007), Radiation of a Leaky Coaxial Cable with Narrow Transverse Slots, IEEE Trans. on Antennas and Propagation. 55(1):107-110.
  10. Feld, Ya.N. and Benenson, L.S., (1959), Antenna feeder devices, Izd-vo VVIA, Moscow: 551 p. (in Russian).
  11. Kisunko, G.V., (1949), Electrodynamics of hollow structures, Izd-vo VKAS, Leningrad: 426 p. (in Russian).
  12. Kogan, N.L., Mashkovtsev, B.M., and Tsibizov, K.N., (1963), Waveguiding, Sudpromgiz, Leningrad: 3567 p. (in Russian).
  13. Panchenko, B.A., (1967), Intrinsic and mutual conductivities of transverse slots on a cylinder, Radiotekhnika. 22(11):61-66.


pages 395-411

Back