一种利用天波覆盖的中波夜间广播系统

By combining horizontally polarized and vertically polarized medium-wave transmitting antennas in the medium-wave broadcasting system, and utilizing coaxial switching switches and antenna feeder modulation and conversion networks, skywave coverage for medium-wave broadcasting was achieved. This solved the problems of fading and interference in the skywave service area, reduced investment costs, and improved system flexibility and coverage accuracy.

CN116937134BActive Publication Date: 2026-07-17BEIJING SINO SKY HI TECH
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Patent Information

Application Number
CN202210357267.0
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-04-06
Publication Date
2026-07-17
Estimated Expiration
2042-04-06

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Abstract

本发明提供了一种利用天波覆盖的中波夜间广播系统，其中，主用发射机和备用发射机分别与同轴切换系统连接，所述同轴切换系统连接有两条传输馈线，两条所述传输馈线各连接有一个天馈线调配转换网络，一个所述天馈线调配转换网络连接水平极化中波发射天线，另一个所述天馈线调配转换网络连接垂直极化中波发射天线；天馈线调配转换网络包括至少由第一元器件、第二元器件和第三元器件构成的阻抗调配网络，以及至少由第四元器件、第五元器件、第六元器件和第七元器件构成的调配转换网络。本发明完成了从电缆端非平衡式馈电形式转换至天线端平衡式的馈电方式。
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Citation Information

Patent Citations

  • Outdoor broadband TV MIMO dual-polarization double-channel broadband transmitting system

    CN107196688A

  • Medium wave night broadcasting system covered by sky waves

    CN217485697U