Vehicular traffic sensor
USRE48781E1 · kind E1 · reissue
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2017 |
| Grant date | Oct 19, 2021 |
| Priority date | — |
| Expiry date | Apr 13, 2037 |
Classification
- Technology area (CPC —)General
Abstract
A vehicle traffic sensor for detecting and monitoring vehicular targets is presented. The sensor employs a planar design resulting in a reduced profile sensor. The sensor includes a multi-layer radio frequency board with RF components on one of the sides and both isolation and planar array antennas on the opposing side. The antennas are preferably tapered planar array antennas which include one transmit antenna and one receive antenna. The sensor also includes at least one logic or signal processing board populated with components on a first side and a ground plane on a second side positioned toward the RF componentry of the RF board to form an RF shield. The boards are housed within a housing that is permeable, at least on the side through which the antenna structures propagate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.