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中波广播多频共塔带宽拓展的一种设计方法

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本文基于我台所取得的《一种天线匹配网络及其匹配设计方法》专利,对天线匹配网络及其匹配设计方法进行了深入探讨.首先,通过预调网络对工作频点在发射天线塔底的阻抗进行预调,实现了工作频点的低Q值.其次,讨论了如何通过高Q值滤波网络,有效阻塞干扰频率,并通过校正网络维持通道的低Q值,从而实现发射频率的宽带宽.这一研究对于提高天线匹配网络的性能和稳定性具有重要意义.
Design Method for Medium-wave Broadcasting Multi-frequency Common Tower and Bandwidth Expansion
Based on the patent"An Antenna Matching Network and its Matching Design Method"obtained by our station,this article delves into the antenna matching network and its matching design method.Firstly,the impedance of the working frequency point at the bottom of the transmitting antenna tower is pretuned through a pretuning network,achieving a low Q value at the working frequency point.Secondly,it is discussed how to effectively block the interference frequency through a high Q value filtering network,and maintain the low Q value of the channel through a correction network,thereby achieving broadband transmission frequency.This study is of great significance for improving the performance and stability of antenna matching networks.

Pretuning networkBlocking networkCorrection networkLow Q-value

刘国伟

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广东省909台,广东 519085

预调网络 阻塞网络 校正网络 低Q值

2024

广播与电视技术
国家广播电视总局广播电视规划院

广播与电视技术

影响因子:0.337
ISSN:1002-4522
年,卷(期):2024.51(1)
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