公开(公告)号：US20150236400A1

公开(公告)日：2015-08-20

申请号：US14185720

申请日：2014-02-20

Applicant: RAYTHEON COMPANY

Inventor： Robert G. Yaccarino ,  Fangchou Yang ,  Stan W. Livingston ,  Tim Gehle ,  Jose I. Valdez

IPC: H01Q1/22 ,  G07B15/06 ,  G06K7/10 ,  H01Q3/24 ,  H01Q21/00

CPC classification number: H01Q1/2216 ,  G06K7/10089 ,  G06K7/10356 ,  G06K7/10425 ,  G07B15/063 ,  H01Q3/24 ,  H01Q3/36 ,  H01Q21/0006 ,  H01Q21/065

Abstract: A system for properly illuminating a toll collection zone without illuminating any areas outside the toll collection zone in which vehicles may be found, while minimizing lost tolls due to shadowing of shorter vehicles by taller vehicles. In one embodiment, a linear array antenna is configured to illuminate a rectangular collection zone from a point offset from the center of the roadway. The linear array antenna is configured to produce an asymmetric antenna pattern providing RF illumination over the rectangular collection zone sufficient for reliable reading of vehicle RF tags in the collection zone, and which also minimizes spillover of RF power outside the collection zone.

Abstract translation: 一种适当照明收费区的系统，而不会照亮可能发现车辆的收费区外的任何区域，同时尽可能减少由较高车辆遮蔽较短车辆造成的损失。 在一个实施例中，线性阵列天线被配置为从与道路中心偏离的点照亮矩形收集区。 线性阵列天线被配置为产生不对称天线图案，其在矩形收集区域上提供RF照明，足以可靠地读取收集区域中的车辆RF标签，并且还使收集区域外的RF功率的溢出最小化。

公开(公告)号：US09666932B2

公开(公告)日：2017-05-30

申请号：US14185720

申请日：2014-02-20

Applicant: RAYTHEON COMPANY

Inventor： Robert G. Yaccarino ,  Fangchou Yang ,  Stan W. Livingston ,  Tim Gehle ,  Jose I. Valdez

IPC: H01Q1/22 ,  H01Q3/24 ,  H01Q21/00 ,  G06K7/10 ,  G07B15/06

CPC classification number: H01Q1/2216 ,  G06K7/10089 ,  G06K7/10356 ,  G06K7/10425 ,  G07B15/063 ,  H01Q3/24 ,  H01Q3/36 ,  H01Q21/0006 ,  H01Q21/065

Abstract: A system for properly illuminating a toll collection zone without illuminating any areas outside the toll collection zone in which vehicles may be found, while minimizing lost tolls due to shadowing of shorter vehicles by taller vehicles. In one embodiment, a linear array antenna is configured to illuminate a rectangular collection zone from a point offset from the center of the roadway. The linear array antenna is configured to produce an asymmetric antenna pattern providing RF illumination over the rectangular collection zone sufficient for reliable reading of vehicle RF tags in the collection zone, and which also minimizes spillover of RF power outside the collection zone.