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Triangle TCAS Antenna, Revision 1.
| 题名： | Triangle TCAS Antenna, Revision 1. |
| 作者： | L. L., Wood; W. H., Harman |
| 关键词： | Accuracy; Aircraft Antennas; Antennas; Azimuth; Collision Avoidance; Monopoles; Noises; Rotary Wing Aircraft; Traffic Alert And Collision Avoidance(tcas); Transmitters |
| 摘要： | The Traffic Alert and Collision Avoidance (TCAS) provides a pilot showing the range and bearing of nearby aircraft. TCAS obtains the bearing information by using an angle-of-arrival antenna. In the development of TCAS at Lincoln Laboratory, the first airborne tests were conducted using an Adcock antenna, which is a small square array of four monopole elements. This report describes an alternative antennas for TCAS, using three elements in the shape of a triangle. It is shown that the triangle antenna is less sensitive to receiver noise, and that improvement factor is about 10 dB. |
| 报告类型： | 科技报告 |
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