Electromagnetic field-to-wire coupling in the SHF frequency range and beyond
Abstract
Methods have been developed for the treatment of field-to-wire coupling at SHF frequencies and beyond. In this reigon, transmission line lengths and wire separations become very large electrically, and field-to-wire coupling problems become intractable. Several types of transmission lines have been examined in the SHF range, including uniform and nonuniform transmission lines, coaxial transmission lines, and multiconductor transmission lines. Current distributions are found to be predominantly of a standing-wave or traveling-wave form. The higher order modes are not significant for those cases examined. Bounds may be obtained for induced currents in the field-to-wire problem by considering the transmission line as a receiving antenna. The behavior of the elements of the equivalent circuits is examined and found to be predictable from computations or measurement at relatively low frequencies. The maximum value of induced current under conditions of maximum susceptibility is shown to vary little with frequency.
- Publication:
-
1986 IEEE International Symposium on Electromagnetic Compatibility
- Pub Date:
- 1986
- Bibcode:
- 1986emco.symp..213A
- Keywords:
-
- Electromagnetic Compatibility;
- Electromagnetic Coupling;
- Electromagnetic Fields;
- Extremely High Frequencies;
- Superhigh Frequencies;
- Transmission Lines;
- Coaxial Cables;
- Current Distribution;
- Electric Fields;
- Equivalent Circuits;
- Open Circuit Voltage;
- Short Circuit Currents;
- Standing Waves;
- Traveling Waves;
- Communications and Radar