Near-field wideband frequency invariant beamformer design for circular antenna arrays based on convex optimization

Author

Liao, Yanping ; Raza, Ahsan ; Wang, Huiqiang ; Yang, Shenyuan

Volume

2

fYear

2011

Firstpage

1360

Lastpage

1365

Abstract

In this paper, a convex-optimization based design method is proposed to solve the near-field wideband beam former design problem with frequency invariant response. The objective is to find the weight vectors required for a uniform circular array capable of forming a beam with a pre defined side lobe attenuation level with desired frequency invariant response over a frequency band of interest against a particular target frequency for an arbitrary focal point within a given scanning area. Design examples have been provided for simulated results.

Keywords

antenna arrays; array signal processing; convex programming; circular antenna arrays; convex optimization; frequency invariant response; near-field wideband beam former design problem; near-field wideband frequency invariant beamformer design; side lobe attenuation level; uniform circular array; weight vectors; Wideband; Convex Optimization; Frequency Invariant Beam forming; Near-field beam pattern; Spatial Response Variation; Tapped Delay Line; Wideband beam forming;

fLanguage

English

Publisher

ieee

Conference_Titel

Cross Strait Quad-Regional Radio Science and Wireless Technology Conference (CSQRWC), 2011

Conference_Location

Harbin

Print_ISBN

978-1-4244-9792-8

Type

conf

DOI

10.1109/CSQRWC.2011.6037216

Filename

6037216