TITLE:
Antenna Array Pattern Synthesis via Coordinate Descent Method
AUTHORS:
Yuanhao Wang, Xiaoxi He, Jiangning Wang, Sergey Berezin, Wolfgang Mathis
KEYWORDS:
Antenna, Phased Array, Optimization, Pattern Synthesis, Coordinate Descent Method
JOURNAL NAME:
Journal of Electromagnetic Analysis and Applications,
Vol.7 No.5,
May
19,
2015
ABSTRACT: This
paper presents an array pattern synthesis algorithm for arbitrary arrays based
on coordinate descent method (CDM). With this algorithm, the complex element
weights are found to minimize a weighted L2 norm of the difference between desired and achieved pattern. Compared with
traditional optimization techniques, CDM is easy to implement and efficient to
reach the optimum solutions. Main advantage is the flexibility. CDM is suitable
for linear and planar array with arbitrary array elements on arbitrary
positions. With this method, we can configure arbitrary beam pattern, which
gives it the ability to solve variety of beam forming problem, e.g. focused
beam, shaped beam, nulls at arbitrary direction and with arbitrary beam width.
CDM is applicable for phase-only and amplitude-only arrays as well, and
furthermore, it is a suitable method to treat the problem of array with element
failures.