Patent ID: 11860294
Assignee: GOOGLE LLC
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 0:
1. A radar system for a smart device, the radar system comprising:
a transmit electromagnetic vector sensor comprising:
two coplanar linear strip antennas comprising:
a first horizontal antenna configured to have a first linear polarization along a first axis; and
a first vertical antenna configured to have a second linear polarization along a second axis that is orthogonal to the first axis;

a receive electromagnetic vector sensor comprising:
two other coplanar linear strip antennas comprising:
a second horizontal antenna configured to have the first linear polarization along the first axis; and
a second vertical antenna configured to have the second linear polarization along the second axis; and

a loop antenna configured to have a third polarization that is different than the first linear polarization and the second linear polarization, wherein:
the loop antenna is positioned between the first vertical antenna and the second vertical antenna such that a third axis that is parallel to the first axis intersects the loop antenna, the first vertical antenna, and the second vertical antenna; and
the loop antenna is positioned between the first horizontal antenna and the second horizontal antenna such that a fourth axis that is parallel to the second axis intersects the loop antenna, the first horizontal antenna, and the second horizontal antenna.