Patent ID: 8907760

Claim:
A portable passive keyless entry device antenna assembly comprising: a surface mount package that includes a first coil antenna oriented parallel to an X plane and configured to receive a low frequency (LF) signal having a carrier frequency between 30 kHz to 300 kHz; a second coil antenna oriented parallel to a Y plane and configured to receive a low frequency (LF) signal having a carrier frequency between 30 kHz to 300 kHz; a third coil antenna having a plurality of windings and oriented parallel to a Z plane and configured to receive a low frequency (LF) signal having a carrier frequency between 30 kHz to 300 kHz; a fourth coil antenna having a plurality of windings and oriented parallel to a Z plane and configured to receive a high frequency (HF) signal having a carrier frequency between 3 MHz and 30 MHz, the windings of the third coil antenna are separated from one another by the windings of the fourth coil antenna; and wherein, viewed from above, the first coil and the second coil define a “+” shape, and the third coil has a rectangular shape surrounding the “+” shape and the fourth coil antenna has a rectangular shape surrounding the “+” shape.