Super broad band based on adaptive frequency selective surface for SAR

Author

Zhang, Chenggang ; Zhang, Qiang

Author_Institution

Nat. Key Lab. of Antenna & Microwave Technol., Nanjing Res. Inst. of Electron. Technol., Nanjing, China

fYear

2009

fDate

26-30 Oct. 2009

Firstpage

254

Lastpage

256

Abstract

Adaptive frequency selective surface(FSS) is a valuable technique for increasing the bandwidth of airborne radome. It can satisfy the rigorous bandwidth requirement of synthetic aperture radar (SAR). Adaptive FSS with cross slot units has been investigated in this paper. Cross slot FSS acts like bandpass filter. It can be used in antenna radomes. Lumped-element devices are loaded on the periodic units. Resonant frequency of the FSS depending on the lumped-element´ impedance could shift in a specified frequency band. The bandwidth of the adaptive FSS with reflection loss below -20 dB can get to 10 GHz.

Keywords

broadband antennas; frequency selective surfaces; radomes; synthetic aperture radar; FSS; SAR; adaptive frequency selective surface; airborne radome; antenna radomes; bandpass filter; frequency 10 GHz; lumped- element devices; synthetic aperture radar; Band pass filters; Bandwidth; Frequency selective surfaces; Impedance; Laboratories; Microwave technology; Periodic structures; Reflection; Resonant frequency; Synthetic aperture radar; adaptive; cross slot; frequency selective surface (FSS); lumped-element; synthetic aperture radar (SAR);

fLanguage

English

Publisher

ieee

Conference_Titel

Synthetic Aperture Radar, 2009. APSAR 2009. 2nd Asian-Pacific Conference on

Conference_Location

Xian, Shanxi

Print_ISBN

978-1-4244-2731-4

Electronic_ISBN

978-1-4244-2732-1

Type

conf

DOI

10.1109/APSAR.2009.5374093

Filename

5374093