Design and adaptation of a folded split ring resonator antenna for use in an animal-borne sensor

IEEE Radio and Antenna Days of the Indian Ocean 2017

无线电电子学

Dodson, S.C.^1 ; Wiid, P.G.^1 ; Niesler, T.R.^1

Electrical and Electronic Engineering Department, University of Stellenbosch, Western Cape, South Africa^1

关键词: Electrically small antennas;    High radiation efficiency;    Quasi-isotropic radiation patterns;    Radiation efficiency;    Rectangular shapes;    Simulated results;    Split ring resonator;    Thinner substrates;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/321/1/012007/pdf
DOI  :  10.1088/1757-899X/321/1/012007

来源: IOP

【 摘 要 】

We present the design, optimisation and practical evaluation of a folded split ring resonator (FSRR) antenna for the purpose of radio communication with an animal-borne sensor. We show that the measurements agree with the simulated results and that we are able to produce an electrically small antenna with low mismatch, high radiation efficiency and a quasi-isotropic radiation pattern. We then adapt the topology of the design from a circular to a rectangular shape, to completely fit inside the sensor enclosure. A quasi-isotropic pattern is maintained as well as low mismatch by appropriate tuning. There is a decrease in radiation efficiency which may be countered by a thinner substrate and retuning. We conclude that the adapted FSRR antenna is a suitable design for our application.