Coupling gain computation between antennas on circular cylinders at SHF/EHF frequencies
Abstract
In analysis of electromagnetic compatibility of collocated avionics systems, aircraft fuselages are modeled by circular cylinders and antennas by a set of keyhole gains at their individual locations. When the antennas are completely hidden from each other by the fuselage, the unwanted signal reaching the receiver antenna travels round the fuselage in a creeping wave. The creeping wave shading loss between a pair of isotropic sources is simulated using half-wave, magnetic type, axial dipoles on a circular cylinder via the basic scattering code (NECBSC2). The results presented were obtained without modifying the NECBSC2 code and compare fairly well with previously published data. This simulation technique and a probable cause for the discrepancies between the NECBSC2 and AAPG codes are discussed.
- Publication:
-
Electrical and Computer Engineering, Volumes 1 and 2 4 p (SEE N93-30215 11-31)
- Pub Date:
- 1990
- Bibcode:
- 1990ecev.confR....C
- Keywords:
-
- Aircraft Antennas;
- Computerized Simulation;
- Dipole Antennas;
- Electromagnetic Compatibility;
- Microwave Coupling;
- Amplification;
- Transmission Loss;
- Wave Equations;
- Wave Propagation;
- Communications and Radar