Using a pair of phased antennas to improve UHF reception transmission in tunnels.

UHF propagation inside tunnels improves considerably if a pair of phased antennas is used as a fixed antenna system, instead of a single antenna. In this article, we have analyzed the causes of signal deterioration in a tunnel due to slow fading and fast fading. We obtained simple relations for thei...

Mô tả đầy đủ

Chi tiết về thư mục

Xuất bản năm:	IEEE Antennas & propagation magazine. 42, 5 (2000).
Tác giả chính:	Coraiola, Alessandro
Tác giả khác:	Sturani, Bruno
Định dạng:	Bài viết
Ngôn ngữ:	English
Những chủ đề:	Land mobile radio propagation factors. Underground electromagnetic propagation. Tunnels. Antenna arrays. Phased arrays. Mobile communication.