Title :
The application of a biquadratic programming method to phase only optimization of antenna arrays
Author_Institution :
Inst. of Appl. Phys., Tsukuba Univ., Ibaraki
fDate :
11/1/1988 12:00:00 AM
Abstract :
Antenna array optimization by a biquadratic programming method is formulated with variable-phase (analog and digital) and constant amplitude excitation. The method can optimize an antenna performance index expressible as a ratio of Hermitian quadratic forms. Power gain optimization and least-squares pattern synthesis with a specified gain are illustrated. Linear, planar, and circular arrays with dipole or circular loop elements are optimized, taking mutual coupling effects between antenna elements into account. The method shows much more rapid convergence characteristics than the Rosenbrock (1960) and Fletcher-Power (1963) methods
Keywords :
antenna arrays; antenna radiation patterns; quadratic programming; Hermitian quadratic forms; antenna arrays; biquadratic programming; circular arrays; circular loop elements; constant amplitude excitation; convergence characteristics; dipole elements; least-squares pattern synthesis; linear arrays; mutual coupling effects; phase only optimization; planar arrays; power gain optimisation; variable phase excitation; Antenna arrays; Convergence; Dipole antennas; Linear antenna arrays; Mutual coupling; Optimization methods; Performance analysis; Phase shifters; Phased arrays; Quantization;
Journal_Title :
Antennas and Propagation, IEEE Transactions on
