A novel broadband bionic Yagi-Uda antenna with low Radar Cross Section

Author

Jinyang Xue ; Ying Liu ; Wei Wang ; Hu Liu

Author_Institution

Nat. Key Lab. of Antennas & Microwave Technol., Xidian Univ., Xi´an, China

fYear

2013

fDate

14-16 April 2013

Firstpage

1

Lastpage

4

Abstract

A novel design of the bionic Yagi-Uda antenna with low RCS (Radar Cross Section) is proposed. Radiating elements are printed on the top and bottom surfaces of the substrate with dielectric permittivity of 2.65, respectively. Directors printed on the top surface are all composed of two leaf-shaped patches. The structure of the reflector is a rectangle patch with corrugate edges. Its radiation and scattering characteristics are studied and compared with a reference antenna. The results show that the proposed Yagi-Uda antenna has a better broadband performance (a 62.1% bandwidth for S₁₁ ≤ -10dB ) and lower RCS than the reference antenna. The designed antenna serves as a good candidate for the design of broadband end-fire antennas with a requirement of RCS control.

Keywords

Yagi antenna arrays; antenna radiation patterns; broadband antennas; microstrip antenna arrays; permittivity; radar cross-sections; RCS control; antenna radiation scattering characteristics; broadband bionic Yagi-Uda antenna; broadband end-fire antenna; dielectric permittivity; leaf-shaped patch; low radar cross section; rectangle patch; Yagi-Uda antenna; bionic; broadband; low RCS;

fLanguage

English

Publisher

iet

Conference_Titel

Radar Conference 2013, IET International

Conference_Location

Xi´an

Electronic_ISBN

978-1-84919-603-1

Type

conf

DOI

10.1049/cp.2013.0439

Filename

6624603