调频(电视)与中波广播天线共用底部绝缘桅杆式铁塔

Shared Use of Bottom-insulated Steel Mast for FM(TV) and Medium Wave Broadcasting Antennas

本文对在中波广播底部绝缘的桅杆式铁塔天线上架设调频(电视)天线的必要性和可行性做了较详细的论述。对实现共用的各种耦合方式进行了比较。着重对开路线电磁耦合进行了理论上的分析,并导出了实用公式和参数图表。对工程中所关心的问题,也有所讨论。

The necessity and feasibility of mounting FM(TV)antenna on thebottom-insulated steel mast used for Medium Wave broadcasting are discussedin detail.Different ways of coupling for realizing the shared use are compared.Open-circuit line electro-magnetic coupling is analyzed theoretically in particu-lar,and the practical formulars and the diagrams and tables of parameters arederived.The problems concerned in engineering aspect are also discussed.