Title :
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
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;
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
