@inproceedings{8ab84285097b43e988ef37a82f566ebd,
title = "UHF ceramic chip antenna designs for wildlife applications",
abstract = "In wildlife scenarios UHF transponder can be used to mark and localize animals over a large distance. Therefore, the size of the marking device has to be appropriate besides the wavelength is much bigger than it. Ceramic chip antennae enable a compact design in UHF applications. Due to the unknown position of the transponder in wildlife localization applications an omni-directional radiation pattern is desired in co- and cross-polarization to compensate polarization losses. For this investigation, several linear and circular ceramic chip antenna designs were established. A low co- to cross-polarization suppression show the circular antenna designs. The close proximity of the antenna to the animal body influences the electromagnetic characteristics significantly. A full sphere radiation measurement was performed in an anechoic chamber with and without muscle-like phantom model to characterize the effects of the animal body to the antenna properties. The reflected energy at the dielectric volume is more determent than the absorbed as the antenna was positioned in a cm distance to the phantom model.",
keywords = "Antenna measurements, Antenna radiation patterns, Ceramics, Impedance matching, Phantoms, Transponders",
author = "Markus Lehner and Michael Eberhardt and Alois Ascher and Erwin Biebl",
note = "Publisher Copyright: {\textcopyright} 2015 IEEE.; 6th IEEE International RF and Microwave Conference, RFM 2015 ; Conference date: 14-12-2015 Through 16-12-2015",
year = "2016",
month = oct,
day = "10",
doi = "10.1109/RFM.2015.7587734",
language = "English",
series = "RFM 2015 - 2015 IEEE International RF and Microwave Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "156--160",
booktitle = "RFM 2015 - 2015 IEEE International RF and Microwave Conference",
}