Analysis of a tubular monopole loaded with a shielded helical coil

Author

Pisano, Frank A., III ; Butler, Chalmers M. ; Rudbeck, Jeremy P.

Author_Institution

Holcombe Dept. of Electr. & Comput. Eng., Clemson Univ., SC, USA

Volume

52

Issue

4

fYear

2004

fDate

4/1/2004 12:00:00 AM

Firstpage

969

Lastpage

977

Abstract

An analysis of a shielded helical coil in a cylindrical tubular antenna is presented, based on a combination of aperture theory and a network model containing lumped RLC components, which is motivated by the desire to use this analysis in antenna-optimization routines. Measured input admittance data for an antenna loaded with a shielded helical coil are presented for comparison with computed data. Also, an experimental procedure by means of which one may measure the transverse electro-magnetic (TEM) input impedance of a coaxial guide loaded with helical coil is described.

Keywords

RLC circuits; coils; electric admittance; lumped parameter networks; monopole antennas; optimisation; TEM input impedance; antenna-optimization routines; aperture theory; cylindrical tubular antenna; input admittance data; load modeling; loaded antennas; lumped RLC components; shielded helical coil; transverse electro-magnetic; tuning circuits; Admittance measurement; Antenna accessories; Antenna measurements; Antenna theory; Aperture antennas; Coaxial components; Coils; Helical antennas; Impedance measurement; Loaded antennas;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2004.825624

Filename

1291759