Patent ID: 9553372
Date: 2017-01-24
CPC Classifications: H01Q

Claim:
1. A locating device, comprising: a guide unit configured to move the locating device in a direction of movement relative to a surface; and an LCR (large current radiator) antenna apparatus operably associated and moveable with said guide unit, said apparatus including a ground plane element and an antenna unit mounted thereon having a first polarization direction and configured to transmit and/or receive a measurement signal having the first polarization direction, wherein the antenna unit has at least one different second polarization direction for transmitting and/or receiving the measurement signal, the first and second polarization directions defined in a common plane that is parallel to the ground plane element wherein the LCR antenna apparatus has a sheath at least partially formed of an electrically conductive material and configured to surround the antenna unit in at least one polarization direction and to form a cavity surrounding the antenna unit; and wherein the LCR antenna apparatus is arranged relative to the guide unit so that the first and second polarization directions of the antenna unit are each at an angle of approximately 45° with respect to the direction of movement.