Summary
International Symposium on Antennas and Propagation
2015
Session Number:S2.4
Session:
Number:S2.4.4
Semi-Elliptical DipoleAntenna for RF Energy Scavenging
Kashka Irani, James Scott, Kamran Ghorbani,
pp.-
Publication Date:2015/11/9
Online ISSN:2188-5079
Summary:
A method to miniaturize a planar semi-elliptical dipole antenna in the FM band (88-108 MHz), is presented. The proposed method modifies the antenna’s structure, having dimensions of a roof tile(L = 432 mmx W = 345 mm), so that an array can be created. The first step was to use slots to meander the surface current path of the antenna lowering the resonating frequency and size. The second step involved using a passive matching network to further reduce the overall dimensions of the antenna with minimal loss. It was shown by using both slots and a matching circuit a size reduction of 0.31λ x 0.25λ was achieved with a bandwidth of 6% and a gain of 0 dBi at 100 MHz. This antenna can be used for RF energy scavenging applications.