Mushroom-like EBG structures for reducing RCS of patch antenna arrays

Author

Panda, Prakash Kumar ; Ghosh, Debashis

Author_Institution

Sch. of Electr. Sci., Indian Inst. of Technol., Bhubaneswar, Bhubaneswar, India

fYear

2013

fDate

13-15 Dec. 2013

Firstpage

1

Lastpage

4

Abstract

This paper proposes a novel method for reduction of radar cross section (RCS) of systems equipped with arrays of patch antennas. A mushroom like electromagnetic band gap (EBG) structure can be designed to partially cover the array substrate, resulting in RCS reduction at the design frequency. Such RCS reduction may be achieved either at in-band or at out-band frequencies depending on the parameters of the EBG unit cell. It is seen that by proper design the RCS is reduced by around 30 dB as compared to the conventional array antenna without degrading the antenna performance.

Keywords

energy gap; microstrip antenna arrays; radar antennas; radar cross-sections; EBG unit cell; RCS reduction; antenna performance; array substrate; design frequency; in-band frequencies; mushroom like electromagnetic band gap structure; mushroom-like EBG structures; out-band frequencies; patch antenna arrays; radar cross section reduction; Antenna arrays; Metamaterials; Patch antennas; Periodic structures; Radar cross-sections; Substrates; dispersion diagram; electromagnetic band gap (EBG); patch antenna arrays; radar absorbing material (RAM); radar cross section;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave and Photonics (ICMAP), 2013 International Conference on

Conference_Location

Dhanbad

Print_ISBN

978-1-4799-2176-8

Type

conf

DOI

10.1109/ICMAP.2013.6733487

Filename

6733487