Lens antennas with beam shaping capabilities at the feed level

Author

Nguyen, N.T. ; Sauleau, R. ; Le Coq, L.

Author_Institution

IETR, Univ. of Rennes 1, Rennes

fYear

2008

fDate

16-20 Dec. 2008

Firstpage

1

Lastpage

4

Abstract

The performances of focal array fed lenses have been studied for beam diversity applications. We have shown that optimizing the feed sub-arrays enables one to achieve very attractive radiation characteristics without using sophisticated techniques based on shape optimization. A specific and powerful design methodology based on FDTD and GA has been proposed to synthesize reconfigurable integrated lens antenna. It has been validated numerically through the design of several extended hemispherical ILAs producing flat-top and multiple shaped beams.

Keywords

antenna arrays; antenna feeds; diversity reception; finite difference time-domain analysis; genetic algorithms; lens antennas; FDTD; GA; beam diversity; beam shaping; feed sub-array; flat-top beams; focal array fed lenses; hemispherical ILA design; multiple shaped beams; reconfigurable integrated lens antenna; Antenna feeds; Design methodology; Finite difference methods; Lenses; Linear antenna arrays; Microstrip antenna arrays; Microstrip antennas; Optical design; Phased arrays; Time domain analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 2008. APMC 2008. Asia-Pacific

Conference_Location

Macau

Print_ISBN

978-1-4244-2641-6

Electronic_ISBN

978-1-4244-2642-3

Type

conf

DOI

10.1109/APMC.2008.4958571

Filename

4958571