A narrow beam low sidelobe level planar monopulse antenna design using pattern search algorithm

Author

Vahidpoor, Z. ; Atlasbaf, Z.

Author_Institution

Tarbiat Modares Univ., Tehran

fYear

2007

fDate

9-12 Oct. 2007

Firstpage

1688

Lastpage

1691

Abstract

A narrow beam low side lobe level monopulse antenna for the application of tracking radars is designed using pattern search (PS) algorithm. Using pattern search as an effective method for high number of variable problems in a 16 X 16 planar monopulse antenna with equal amplitude isotropic elements resulted in a low side lobe level (SLL) of -18.7 dB for sum and -10.9 dB for difference, a sum half power beamwidth (HPBW) of 3.8 and 3.5 degree in E and H plane and a difference HPBW of 1.1 and 1.5 degree, only by changing phases of 29 elements, regarding the zero-phase array. This will result in a simple and compact structure with low cost implementation process.

Keywords

antenna phased arrays; antenna radiation patterns; linear antenna arrays; optimisation; planar antenna arrays; radar tracking; amplitude isotropic elements; narrow beam low side lobe level antenna; pattern search algorithm; planar monopulse antenna design; sum half power beamwidth; tracking radar application; zero-phase array; Algorithm design and analysis; Cost function; Feeds; Linear antenna arrays; Microwave antennas; Phased arrays; Radar antennas; Radar applications; Radar tracking; Time measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2007. European

Conference_Location

Munich

Print_ISBN

978-2-87487-001-9

Type

conf

DOI

10.1109/EUMC.2007.4405538

Filename

4405538