DIN EN 300631-1-1998 传输和多路复用.数字无线电中继系统(DRRS).第1部分:在1GHz至3GHz频带中点对点无线电通信链路用天线
Transmission and Multiplexing (TM) - Digitale Radio Relay Systems (DRRS) - Part 1: Antennas for point-to-point (P-P) radio links in the 1 GHz to 3 GHz bands; English version EN 300631-1 V 1.1.1:1997-11