Title :
A study of the CTHA based on analytical models
Author :
Miron, Douglas B.
Author_Institution :
Siouxland Sci. Comput. Co., Solway, MN, USA
fDate :
8/1/2001 12:00:00 AM
Abstract :
The first electromagnetic analysis of the contra-wound toroidal helix antenna (CTHA) is presented. This very-low-profile antenna is seen to have characteristics derivable from a transmission line with a standing current wave and an array of small loops. Formulas for the far-field radiation and efficiency are given. These are used, in conjunction with a numerical model, to develop some trends relating performance and design parameters
Keywords :
VHF antennas; antenna radiation patterns; helical antennas; 89 to 100 GHz; CTHA; contra-wound toroidal helix antenna; design; electromagnetic analysis; far-field radiation; performance; small loops; standing current wave; transmission line; very-low-profile antenna; Analytical models; Antenna arrays; Electromagnetic analysis; Helical antennas; Numerical models; Power transmission lines; Transmission line antennas; Transmission line theory; Vectors; Wire;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
