Superdirective metamaterial-inspired electrically small antenna arrays

Author

Sentucq, B. ; Sharaiha, A. ; Collardey, Sylvain

Author_Institution

Inst. of Electron. & Telecommun. of Rennes (IETR), Rennes, France

fYear

2013

fDate

8-12 April 2013

Firstpage

151

Lastpage

155

Abstract

A new electrically small antenna design based on a metamaterial-inspired structure driven by an electrically small monopole antenna is presented. This antenna of λ₀/19×λ₀/19 size works in the UHF band and offers a simulated efficiency of 75%, with an average maximum gain of 0.86dB and a directivity of 2.12dB in the matched bandwidth of 5.2MHz. This antenna is then used in a compact array of two identical elements in order to achieve a higher directivity. Two arrays are compared: one with two driven elements and a parasitic array with only one of the two elements driven. The design details, simulated and measured radiation characteristics of the antenna system and antenna arrays are reported.

Keywords

antenna radiation patterns; metamaterial antennas; monopole antenna arrays; UHF band; antenna directivity; antenna system; bandwidth 5.2 MHz; compact array; driven elements; efficiency 75 percent; gain 0.86 dB; identical elements; monopole antenna; parasitic array; simulated radiation characteristics; superdirective metamaterial-inspired electrically small antenna arrays; Antenna arrays; Antenna measurements; Electrical resistance measurement; Gain measurement; Resistance; Resonant frequency; electrically small antenna; metamaterials; parasitic antenna; superdirective antenna;

fLanguage

English

Publisher

ieee

Conference_Titel

Antennas and Propagation (EuCAP), 2013 7th European Conference on

Conference_Location

Gothenburg

Print_ISBN

978-1-4673-2187-7

Electronic_ISBN

978-88-907018-1-8

Type

conf

Filename

6546236