Title :
Sidelobe reduction of antenna arrays by deterministic subarray feed line adjustment method
Author :
Takemura, N. ; Miyashita, H. ; Makino, S. ; Udagawa, S. ; Chiba, I.
Author_Institution :
Mitsubishi Electr. Corp., Kanagawa, Japan
Abstract :
We describe the optimization theory of a subarray feed line that determines the lengths of the fine-tuning cables with the least-square method by using the S-parameters of array antenna components. In this way, we can determine the optimal lengths at once and can reduce the sidelobe of antenna arrays with the multiple reflections of subarray feed circuits taken into consideration. We confirm the validity of this theory by simulation and measurement results.
Keywords :
S-parameters; antenna arrays; antenna feeds; antenna radiation patterns; least squares approximations; optimisation; tuning; S-parameters; antenna arrays; array antenna components; deterministic subarray; feed line adjustment; fine-tuning cables; least-square method; multiple reflections; optimization theory; sidelobe reduction; subarray feed circuits; Antenna accessories; Antenna arrays; Antenna feeds; Antenna theory; Cables; Circuits; Optimization methods; Reflection; Reflector antennas; Scattering parameters;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2004. IEEE
Print_ISBN :
0-7803-8302-8
DOI :
10.1109/APS.2004.1331934
