Title :
Gain optimization for Yagi-Uda arrays
Author_Institution :
Dept. of Electr. & Comput. Eng., Syracuse Univ., NY, USA
fDate :
6/1/1991 12:00:00 AM
Abstract :
The author presents a personal account of the search for a design procedure for Yagi-Uda antenna arrays yielding a maximum gain, or directivity if element losses are neglected. Results on current distributions in the array are briefly reviewed. The analytical approach used to achieve gain optimization by means spacing and length perturbations is sketched. By using both spacing and length perturbations, it was possible to find the optimized array analytically in a systematic way, some examples having gain increases of nearly 80%. The effects of finite dipole radius and mutual coupling were included in the theoretical treatment.<>
Keywords :
amplification; antenna arrays; antenna theory; optimisation; Yagi-Uda antenna arrays; current distributions; design; directivity; finite dipole radius; gain optimization; length perturbations; maximum gain; mutual coupling; spacing perturbations; Antenna arrays; Art; Current distribution; Dipole antennas; Electromagnetic coupling; Integral equations; Modems; Resonance; Retirement; Signal to noise ratio;
Journal_Title :
Antennas and Propagation Magazine, IEEE