Patent AU-2016102459-A4 (AU)
Title: An antenna
Inventor: PRETORIUS ALBERTUS JACOBUS
IPC: H01Q1/04
Filed: 2016-11-16
Granted: 2021-04-29
Abstract: An antenna for a communication device, and a number of RFID reader configurations incorporating the 
antenna, are disclosed. The antenna has a structure comprising a circular radiating base plate, a radiating 
cone, a solid frusto-conical body. The cone has an apex that points towards the center of the circular 
base plate, and the apex is positioned on or near the base plate on one side of the base plate. The cone 
opens/expands away from the base plate. The solid frusto-conical body has an encompassing side (i.e. a 
side that goes all the way around the circumference of the antenna structure) which extends from the 
base plate to near an edge on the widest point on the cone, and the material of the body substantially 
fills the space inside the encompassing side and between the base plate and the cone.
WO 2017/096420 PCT/AU2016/051099 
24/26 
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Figure 17 - side-on and partially exploded pictorial view of another slight alternative or variant on 
the proposed antenna structure and other reader equipment intended for use in an in-road 
application