Title :
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
fDate :
4/1/2004 12:00:00 AM
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;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2004.825624
