Title :
Nonlinear optimization extends the bandwidth of Yagi antenna
Author_Institution :
University of Mississippi, University, MS, USA
fDate :
3/1/1975 12:00:00 AM
Abstract :
A cost function is given for the optimization of the directivity of an antenna array while simultaneously achieving the flat behavior over the wide range of frequencies. The optimization of a six-element Yagi antenna resulted in a virtually flat directivity over the bandwidth of 33 percent. The allowable tolerances on element lengths of the optimized antenna are 0.25 percent or larger.
Keywords :
Optimization methods; Yagi - Uda arrays; Antenna theory; Arm; Bandwidth; Dipole antennas; Frequency measurement; Impedance; Resonance; Resonant frequency; Voltage; Yagi-Uda antennas;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
DOI :
10.1109/TAP.1975.1141027