Design of a novel 3D circular Vivaldi antennas array for Ultra-wideband near-field radar imaging

Author

Alkhalifeh, K. ; Sarkis, R. ; Craeye, C.

Author_Institution

ICTEAM Inst., Univ. Catholique de Louvain, Louvain-la-Neuve, Belgium

fYear

2012

fDate

26-30 March 2012

Firstpage

898

Lastpage

901

Abstract

The design of a circular Vivaldi antenna array for Ultra wideband near-field radar imaging is presented. We first show a 3D single Vivaldi antenna with a 12:1 bandwidth without the need for complex microstrip transitions. A 3D circular array of 10 electrically connected elements is simulated using the Method of Moments, with 12:1 bandwidth. The 3D circular array is simulated using the Array Scanning Method (ASM) applied to the Method of Moments, where the ASM appears as a computationally efficient approach for simulating large circular antenna arrays. Near fields in E and H planes in the area of radiation exposure are depicted and exhibit smooth spreading over the whole field of view.

Keywords

antenna arrays; method of moments; radar imaging; ultra wideband antennas; 3D circular Vivaldi antennas array; 3D single Vivaldi antenna; ASM; E planes; H planes; array scanning method; computationally efficient approach; large circular antenna array simulation; method of moments; radiation exposure; ultrawideband near-field radar imaging; Antennas; Conferences; Europe;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EUCAP), 2012 6th European Conference on

Conference_Location

Prague

Print_ISBN

978-1-4577-0918-0

Electronic_ISBN

978-1-4577-0919-7

Type

conf

DOI

10.1109/EuCAP.2012.6205930

Filename

6205930