Title :
Finite-difference time-domain of HF antennas
Author :
Andrew, William V. ; Balanis, Constantine A. ; Birtcher, Craig ; Tirkas, Panayiotis A.
Author_Institution :
Telecommun. Res. Center, Arizona State Univ., Tempe, AZ, USA
Abstract :
The FDTD method with higher-order absorbing boundary conditions is used to model and predict the input impedance and the far-field radiation of electrically short antennas. Far-field radiation results are presented and compared with measurement for HF loop (towel bar) and inverted-L antenna elements used at 10 MHz mounted on a helicopter-like body. Wideband input impedance predictions and measurements are also presented. The computed radiation patterns and input impedance compare well with measurements
Keywords :
aircraft communication; antenna radiation patterns; electric impedance; finite difference time-domain analysis; helicopters; loop antennas; mobile antennas; 10 MHz; FDTD method; HF antennas; HF loop; electrically short antennas; far-field radiation; finite-difference time-domain; helicopter-like body; higher-order absorbing boundary conditions; input impedance; inverted-L antenna; radiation patterns; towel bar; wideband input impedance predictions; Antenna measurements; Boundary conditions; Electromagnetic measurements; Finite difference methods; Frequency; Hafnium; Helicopters; Impedance measurement; Predictive models; Time domain analysis;
Conference_Titel :
Military Communications Conference, 1994. MILCOM '94. Conference Record, 1994 IEEE
Conference_Location :
Fort Monmouth, NJ
Print_ISBN :
0-7803-1828-5
DOI :
10.1109/MILCOM.1994.473847
