Experimental Study on Leaky Cable for Propagation Constants

Sinha, M. P.; Jha, Rohit Kumar

doi:10.1109/temc.1987.304337

Cited by 2 publications

(2 citation statements)

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“…During recent decades leaky coaxial cables have generated increasing interest as tools of intrusion detection in guided radar systems [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. A buried leaky coaxial cable can support two TEM-like modes.…”

Section: Introductionmentioning

confidence: 99%

“…Such a construction enables the signals to be coupled into immediately adjacent objects and the temporal variations of these signals can be used in the intrusion detection systems. The radiation properties of leaky coaxial cables were investigated in a number of works [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16], but in most of them, with exception of [3-5, 8, 1 1], only the open installation of the cable was considered. At the same time, it is known that the radiation pattern of the buried cable differs essentially from that of the open installation.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

<title>Prediction of radiation pattern of a buried leaky coaxial cable</title>

Blaunstein

Dank²,

Zilbershtein³

1999

SPIE Proceedings

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Theoretical and experimental investigations of the radiation properties of a buried leaky coaxial cable (LCC), as a guarding radar system, are presented for various.artificial and natural local inhomogeneous conditions along the cable system. The theoretical model of two coupling coaxial lines, outside which consists a sub-soil medium, is introduced to describe interactions of two modes, external and internal, which determine the working characteristics of such a leaky coaxial cable. The vertical and the horizontal distribution of radiation along and across the cable at height h above the ground are examined experimentally by means of a loop of the LCC buried in the sub-soil medium. The comparison between experimental data and theoretical predictions of radiation directivity of the LCC for the guarding radar system is presented. The possibilities of generating a complicated interference picture of such a radar pattern caused by different kinds of local inhomogeneities are discussed theoretically and studied experimentally.

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