Horizontally polarized wide-angle radar object detection
AssigneeDelphi Technologies, Inc.
InventorsGreg J. Sapletal, Shawn Shi, Kirk E. McClure
Life of this patent
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Abstract
A radar includes fixed beam radar transmitter and receiver antennae that utilize mixed polarization to optimize the object detection field-of-view through an intervening plastic fascia. The transmitter antenna transmits radar energy with slant polarization, a first receiver antenna designed for short-range wide-angle object detection passes only horizontally polarized radar energy, and a second receiver antenna designed for long-range narrow-angle object detection passes only vertically polarized radar energy.
Claims8
Radar apparatus for detecting objects through an intervening plastic fascia, comprising:
- a radar transmitter including a transmit antenna for directing radar energy through the fascia over a wide-angle field of view, said transmitter having a slant polarization feature that slant polarizes the directed radar energy;
- and
- a first receiver antenna including a horizontal polarization feature for admitting only horizontally polarized components of said radar energy reflected through said fascia from objects in said wide-angle field of view.
A method of utilizing radar for object detection through an intervening plastic fascia, comprising the steps of:
- transmitting slant polarized radar energy through the fascia over a wide-angle field of view;
- and
- receiving horizontally polarized components of said radar energy reflected through said fascia from objects in said wide-angle field of view.
Dependencies are inferred from the claim text.