亚洲欧美第一页_禁久久精品乱码_粉嫩av一区二区三区免费野_久草精品视频

蟲蟲首頁| 資源下載| 資源專輯| 精品軟件
登錄| 注冊

您現在的位置是:蟲蟲下載站 > 資源下載 > 書籍 > Radio Wave Propagation

Radio Wave Propagation

  • 資源大小:5063 K
  • 上傳時間: 2020-06-01
  • 上傳用戶:shancjb
  • 資源積分:2 下載積分
  • 標      簽: Propagation Radio Wave

資 源 簡 介

One of the prerequisites for the development of telecommunication services is the
understanding of the propagation of the waves, either acoustic, electromagnetic,
radio or light waves, which are used for the transmission of information.
In this work, we shall limit ourselves to the study of radio waves: this term
apply to the electromagnetic waves used in radio communications. Their
frequency spectrum is very broad, and is divided into the following frequency
bands : ELF waves (f < 3 kHz), VLF (3-30 kHz), LF waves (30-300 kHz), MF
waves (300-3000 kHz), HF (3-30 MHz), VHF waves (30-300 MHz), UHF waves
(300-3000 MHz), SHF waves (3-30 GHz), EHF waves (30-300 GHz) and sub-
EHF waves (300-3000 GHz).

相 關 資 源

主站蜘蛛池模板: 神农架林区| 舞钢市| 蒙自县| 绥芬河市| 海原县| 周口市| 阳泉市| 任丘市| 师宗县| 合川市| 广水市| 顺平县| 丽江市| 田林县| 惠安县| 赣州市| 平陆县| 平谷区| 台前县| 尉氏县| 图木舒克市| 祁阳县| 新建县| 新龙县| 班玛县| 怀柔区| 铜陵市| 文登市| 堆龙德庆县| 荣成市| 德令哈市| 普定县| 陵川县| 鹤峰县| 黎川县| 瓮安县| 佳木斯市| 博湖县| 石城县| 扬中市| 精河县|