中波三頻共塔帶通耦合網(wǎng)絡(luò)的實(shí)現(xiàn)

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摘要：文章介紹了設(shè)計(jì)全固態(tài)中波廣播發(fā)射機(jī)三頻共塔網(wǎng)絡(luò)的關(guān)鍵部分——預(yù)調(diào)網(wǎng)絡(luò)和阻塞網(wǎng)絡(luò)，并結(jié)合實(shí)際介紹了江門中波臺(tái)的三頻共塔的設(shè)計(jì)思路，同時(shí)分析了采用帶通耦合網(wǎng)絡(luò)作為匹配網(wǎng)絡(luò)的優(yōu)越性。

關(guān)鍵詞：三頻共塔；預(yù)調(diào)網(wǎng)絡(luò)；阻塞網(wǎng)絡(luò)；視在功率；帶通耦合

doi：10.3969/J.ISSN.1672-7274.2023.11.038

中圖分類號(hào)：TN 934.1            文獻(xiàn)標(biāo)志碼：B            文章編碼：1672-7274（2023）11-0-04

Realization of Triple Frequency Common Tower Bandpass Coupling Network in Jiangmen Mediumwave Broadcasting Station

LI Muqing

（Guangdong Province Jiangmen Medium Wave Station， Jiangmen 529100， China）

Abstract： This paper introduces the key elements of the design of the three frequency common tower network of all solid state medium wave broadcasting transmitter - premodulation network and blocking network， and introduces the design idea of the triple frequency common tower in this platform. At the same time， it introduces the superiority of adopting the band-pass coupled cooperative matching network.

Key words： Triple frequency common tower; premodulation network; blocking network; apparent power; bandpass coupling

1   研究背景

隨著城市規(guī)模不斷擴(kuò)大，大多數(shù)中波發(fā)射臺(tái)往郊區(qū)遷移。（剩余4245字）