Back to results
US 5,844,524 AGranted
Antenna, in particular for an anti-theft system of a motor vehicle
AssigneeSiemens Aktiengesellschaft
InventorsJosef Kraiczyk, Johannes Kroitzsch
Life of this patent
Estimating the term…
Abstract
An antenna is constructed as an "on-board antenna" in the form of conductor tracks on a circuit board. A conductor track on the upper surface of the circuit board is electrically connected to a conductor track on the lower surface thereof through plated-through holes. This increases both the effective antenna surface area and thus the radiation power.
Claims8
An antenna assembly for an anti-theft system of a motor vehicle, comprising:
- a circuit board having upper and lower surfaces;
- an antenna constructed as conductor tracks disposed on both said upper surface and said lower surface of said circuit board for increasing radiation power to be broadcast or received by the antenna;
- and
- said circuit board having plated-through holes formed therein at short intervals along said conductor tracks, said conductor tracks connected to one another through said plated-through holes.
1 more element
Dependencies are inferred from the claim text.