Modeling pulse driven antenna systems with finite differences
We have developed a capability of modeling the performance of general, pulse driven, antenna systems. Our approach is to use TSAR, a three dimensional finite difference time domain (FDTD) code, to model the antenna structure and the surrounding near field environment. We then use a far field projection algorithm to obtain its far field response. Specifically, this algorithm utilizes the tangential electric and magnetic fields at a specified surface of the TSAR FDTD computational volume and calculates the resulting fields far from the equivalent magnetic and electric sources. This approach will be illustrated by considering the TEB antenna system. The system is modeled with the code and the results are compared with anechoic chamber data. 10 figs., 2 tabs.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- Sponsoring Organization:
- DOE/DP
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 6923987
- Report Number(s):
- UCRL-JC-103302; CONF-9003128--3; ON: DE90010682
- Country of Publication:
- United States
- Language:
- English
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ANTENNAS
COMPARATIVE EVALUATIONS
COMPUTER CODES
COMPUTERIZED SIMULATION
CONTROL SYSTEMS
DIFFERENTIAL EQUATIONS
ELECTRICAL EQUIPMENT
ELECTROMAGNETIC FIELDS
EQUATIONS
EQUIPMENT
F CODES
FILTERS
FINITE DIFFERENCE METHOD
FREQUENCY ANALYSIS
ITERATIVE METHODS
MAXWELL EQUATIONS
NOISE
NUMERICAL SOLUTION
PARTIAL DIFFERENTIAL EQUATIONS
PULSE TECHNIQUES
SIMULATION
THREE-DIMENSIONAL CALCULATIONS