Design of a dual-band shared-aperture antenna based on frequency selective surface

Author

Bo Yan ; Yuanming Zhang ; Long Li

Author_Institution

Sch. of Electron. Eng., Xidian Univ., Xi´an, China

Volume

01

fYear

2013

fDate

23-25 Oct. 2013

Firstpage

496

Lastpage

499

Abstract

A new design of a dual-band shared-aperture antenna based on frequency selective surface (FSS) for synthetic aperture radar (SAR) applications is presented. Bow-tie patches are used as the radiating elements both at L-band and C-band. The centre frequency of the L-band antenna is 1.3 GHz and the centre frequency of the C-band antenna is 5.2 GHz. The simulated impedance bandwidth (S₁₁ ≤ -10dB) of the antenna reaches 16.2% for L- band and 26.8% for C-band. The simulated cross-polarization levels are all less than -48 dB for both L-band and C-band. The work confirms the practicability of the dual-band shared-aperture antenna based on frequency selective surface (FSS) design, and good bandwidth and cross-polarization performance of the antenna has been achieved.

Keywords

antenna radiation patterns; bow-tie antennas; frequency selective surfaces; microstrip antennas; multifrequency antennas; polarisation; synthetic aperture radar; C-band antenna; FSS design; L-band antenna; SAR applications; bow-tie patches; cross-polarization levels; dual-band shared-aperture antenna design; frequency 1.3 GHz; frequency 5.2 GHz; frequency selective surface; radiating elements; synthetic aperture radar applications; Antenna radiation patterns; Dual band; Frequency selective surfaces; L-band; Microstrip antenna arrays; Synthetic aperture radar;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas & Propagation (ISAP), 2013 Proceedings of the International Symposium on

Conference_Location

Nanjing

Print_ISBN

978-7-5641-4279-7

Type

conf

Filename

6717500