Title :
Disk-loaded monopoles with parallel strip elements
Author :
Foltz, H.D. ; McLean, J.S. ; Crook, G.
Author_Institution :
Texas Univ., Edinburg, TX, USA
fDate :
12/1/1998 12:00:00 AM
Abstract :
Design considerations and experimental performance data are presented for disk-loaded folded monopoles in which the vertical elements consist of flat parallel strips separated by a dielectric. The presence of the dielectric and the flat strip geometry permit control of resonance frequency, susceptance slope, and impedance step-up ratio over ranges suitable for the design of electrically small antennas with a broad double-tuned response. Graphs are presented giving the impedance step-up ratio due to folding for various strip dimensions derived from static calculations. Experimental results are shown for antennas with heights in the range of one-eighth to one-tenth wavelength
Keywords :
electric admittance; electric impedance; monopole antennas; resonance; antenna height; broad double-tuned response; dielectric; disk-loaded monopoles; electrically small antenna design; experimental performance data; experimental results; flat parallel strips; graphs; impedance step-up ratio; parallel strip elements; resonance frequency control; susceptance slope; vertical elements; wavelength; Bandwidth; Dielectrics; Electric resistance; Geometry; Impedance; Loaded antennas; Resonance; Resonant frequency; Strips; Transmission line antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
