中波广播接收天线的小型化设计与高灵敏度实现技术  

Miniaturization Design and High Sensitivity Realization of Medium Wave Broadcast Receiving Antenna

作　　者：黄炀 HUANG Yang(Guizhou Provincial Radio and Television Bureau 501,Guiyang 550004,China)

机构地区：[1]贵州省广播电视局五〇一台,贵州贵阳550004

出　　处：《电声技术》2025年第2期169-171,共3页Audio Engineering

摘　　要：中波广播接收天线作为无线通信基础设施,其小型化与高灵敏度设计对提升通信质量具有关键意义。从材料、结构、信号处理3个维度出发,深入探讨小型化中波广播接收天线的设计技术。首先,引入高介电常数陶瓷复合材料、电磁场分布重构技术、精密的表面阻抗调控,压缩天线体积。其次,在低噪声前端电路设计方面,采用超低噪声放大器件和精密匹配网络,提升信号接收灵敏度,并借助数字信号处理算法,增强弱信号提取能力。最后,引入基于机器学习的频谱感知和自适应频率调节机制,提升天线在复杂电磁环境中的抗干扰性能。As the infrastructure of wireless communication,the miniaturization and high sensitivity design of medium-wave broadcast receiving antenna is of great significance to improve communication quality.Based on the three dimensions of material,structure and signal processing,the design technology of miniaturized medium-wave broadcasting receiving antenna is deeply discussed.Firstly,high dielectric constant ceramic composites,electromagnetic field distribution reconstruction technology and precise surface impedance regulation are introduced to reduce the antenna volume.Secondly,in the design of low noise front-end circuit,ultra-low noise amplifier and precision matching network are used to improve the sensitivity of signal reception,and digital signal processing algorithm is used to enhance the ability of weak signal extraction.Finally,the spectrum sensing and adaptive frequency adjustment mechanism based on machine learning are introduced to improve the anti-interference performance of the antenna in complex electromagnetic environment.

关 键 词：中波广播 接收天线 小型化 高灵敏度 电磁耦合 

分 类 号：TN934[电子电信—信号与信息处理]