Title :
A method for matching an antenna having a small radiation resistance to a 50-ohm coaxial line
Author :
Altshuler, Edward E.
Author_Institution :
Air Force Res. Lab., Hanscom AFB, MA, USA
Abstract :
It is shown that it is possible to match an antenna having a very low radiation resistance to a 50-ohm coaxial line using an inductive matching post near the base of the antenna. This technique is illustrated using two electrically small self-resonant genetic antennas. The input admittances of these antennas are simulated with and without the matching posts; the antennas are then fabricated and these results are verified experimentally.
Keywords :
antenna radiation patterns; coaxial cables; electric admittance; genetic algorithms; impedance matching; wire antennas; GA; antenna matching method; coaxial line; electrically small self-resonant antenna; genetic algorithm; genetic antenna; inductive matching; radiation resistance; Admittance; Algorithm design and analysis; Antenna feeds; Antenna measurements; Antennas and propagation; Coaxial components; Electric resistance; Genetic algorithms; Impedance matching; Inductance; Electrically small antennas; genetic algorithm (GA); impedance matching;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.2005.854543
