发明名称 |
MIMO antenna with elevation detection |
摘要 |
A multiple input multiple output (MIMO) antenna for a radar system includes a receive antenna, a first transmit-antenna-arrangement, and a second transmit-antenna-arrangement. The receive-antenna is configured to detect radar-signals reflected by a target toward the receive-antenna. The first transmit-antenna-arrangement includes a first vertical-array of radiator elements and a second vertical-array of radiator elements. The first transmit-antenna-arrangement is configured so the first vertical-array can be selectively coupled to a transmitter independent of the second vertical-array. The second transmit-antenna-arrangement includes a third vertical-array of radiator elements and a fourth vertical-array of radiator elements. The second transmit-antenna-arrangement is configured so the third vertical-array can be selectively coupled to a transmitter independent of the fourth vertical-array. The second transmit-antenna-arrangement is vertically offset from the first transmit-antenna-arrangement by a vertical offset distance selected so an elevation angle to the target can be determined by the receive-antenna. |
申请公布号 |
US9541639(B2) |
申请公布日期 |
2017.01.10 |
申请号 |
US201514880376 |
申请日期 |
2015.10.12 |
申请人 |
Delphi Technologies, Inc. |
发明人 |
Searcy James F.;Alland Stephen W. |
分类号 |
G01S13/44;H01Q21/08;G01S7/03;G01S7/28;G01S7/292;G01S7/35;G01S13/00;G01S13/42;G01S13/93;H01Q21/06;H01Q1/32 |
主分类号 |
G01S13/44 |
代理机构 |
|
代理人 |
Hazelton Lawrence D. |
主权项 |
1. A multiple input multiple output (MIMO) antenna for a radar system, said antenna consisting of:
a first transmit-antenna-arrangement that consists of a first vertical-array of radiator elements and a second vertical-array of radiator elements, said first transmit-antenna-arrangement configured so the first vertical-array can be selectively coupled to a transmitter independent of the second vertical-array; and a second transmit-antenna-arrangement that consists of a third vertical-array of radiator elements and a fourth vertical-array of radiator elements that match the first vertical-array and the second vertical-array, said second transmit-antenna-arrangement configured so the third vertical-array can be selectively coupled to a transmitter independent of the fourth vertical-array, wherein the second transmit-antenna-arrangement is vertically offset from the first transmit-antenna-arrangement by a vertical offset distance selected so the MIMO antenna can be used to determine an elevation angle to a target, wherein the vertical offset distance is such that a horizontal line passes through both the first transmit-antenna-arrangement and the second transmit-antenna-arrangement; and a receive-antenna configured to detect radar-signals transmitted by the first transmit-antenna-arrangement and the second transmit-antenna-arrangement and reflected by the target toward the receive-antenna, whereby the antenna can be used to determine the elevation angle based on a phase offset of radar-signals detected by the receive-antenna originating from the first transmit-antenna-arrangement and the second transmit-antenna-arrangement. |
地址 |
Troy MI US |