SMALL PRINTED MEANDER ANTENNA PERFORMANCES IN 315MHz FREQUENCY BAND INCLUDING RF CABLE EFFECT

摘要

The present disclosure pertains to a compact antenna assembly adapted to be used with a remote key entry system for an associated vehicle that is configured to receive radio waves within the 200 MHz to 450 MHz frequency band or more particularly within about the 315 MHz band. The antenna assembly includes a meander line antenna trace of a desired geometry having a plurality of bends and strips that is configured to reduce the effect of electromagnetic interference. A dielectric substrate is configured to receive the antenna trace along a surface thereon wherein the dielectric substrate and antenna trace is installed within an associated housing that is generally compact and configured to be installed within the associated vehicle. The geometry of the meander line antenna trace is configured in either a symmetrical dipole antenna or an asymmetrical antenna. An RF cable can be attached to the antenna.

主权项

1. A compact antenna assembly for a remote key entry system for an associated vehicle that is adapted to receive radio waves within the 200 MHz-450 Mhz frequency band, the antenna assembly comprising:
a meander line antenna trace of a desired geometry having a plurality of bends and strips that is configured to reduce the effect of electromagnetic interference; and a dielectric substrate includes a length (L) and a width (W) that is configured to receive the antenna trace along a surface thereon; wherein the dielectric substrate and antenna trace is can be installed within an associated housing that is generally compact and configured to be installed within the associated vehicle.