Metamaterial-based wideband shorting-wall loaded mushroom array antenna

Author

Wei Liu ; Xianming Qing ; Zhi Ning Chen

Author_Institution

Dept. of Electr. & Comput. Eng., Nat. Univ. of Singapore, Singapore, Singapore

fYear

2015

fDate

13-17 April 2015

Firstpage

1

Lastpage

4

Abstract

A shorting-wall loaded metamaterial mushroom array antenna is proposed for bandwidth enhancement and compact design. Owing to the shorting-wall loading, the lower frequency region of the right-handed branch of the composite right/left-handed (CRLH) mushroom structure is exploited. The operating modes of the antenna are investigated. The antenna prototype at 5-GHz band exhibits 26% impedance bandwidth (|S₁₁|<;-10 dB) with a compact size of 0.65λ₀ × 0.61λ₀ × 0.06λ₀ (λ₀ is the center operating wavelength in free space).

Keywords

dielectric-loaded antennas; metamaterial antennas; microstrip antenna arrays; microwave antenna arrays; bandwidth enhancement; compact antenna; composite right-handed/left-handed mushroom structure; frequency 5 GHz; metamaterial based wideband shorting wall loaded array antenna; mushroom array antenna; shorting wall loading; Antenna arrays; Antenna measurements; Arrays; Bandwidth; Broadband antennas; Loaded antennas; CRLH mushroom; Wideband antenna; compact antenna; low profile; metamaterial antenna; metamaterials; shorted boundary;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2015 9th European Conference on

Conference_Location

Lisbon

Type

conf

Filename

7228344