On small antenna impedance in weakly dissipative media
Abstract
Based on antenna modeling theory, a simple formula is established relating antenna impedance in a dissipative medium to that in free space. The approximation is shown to be valid for small losses and is restricted to bare perfectly conducting small antennas. An application to a conical unipole is presented, and a simple graphical construction is proposed to derive the required impedance curve in the complex plane from that in free space.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- March 1978
- DOI:
- 10.1109/TAP.1978.1141837
- Bibcode:
- 1978ITAP...26..341A
- Keywords:
-
- Electrical Impedance;
- Energy Dissipation;
- Monopole Antennas;
- Dipole Antennas;
- Loop Antennas;
- Communications and Radar