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高幅相一致性超短波宽带放大组件研制
电子技术应用
马天,朱小伟
中国电子科技集团公司第十六研究所
摘要: 随着电子技术的快速发展,电子侦察设备对超短波宽带放大组件的需求日益增加。基于实际需要,研制了一款高幅相一致性超短波宽带放大组件。采用阻抗变换方案,实现放大组件两个输入端阻抗由200 Ω变换至50 Ω。通过放大电路、平衡—不平衡的转化,实现小信号放大及一路射频输出。此外,采用气体放电管及TVS管实现防雷设计。测试结果表明,工作电压15 V时,该放大组件在570 MHz工作带宽下,可实现增益≥15 dB、噪声系数≤2.9 dB,通过工艺过程控制,该放大组件批产后,批次相位一致性≤±3°、批次幅度一致性≤±0.5 dB,且具有体积小、重量轻、故障返修率低等特点,在国内同类产品中处于技术领先地位,已成功应用于电子侦察设备。
中圖分類號:TN722 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.257081
中文引用格式: 馬天,朱小偉. 高幅相一致性超短波寬帶放大組件研制[J]. 電子技術(shù)應(yīng)用,2026,52(2):87-90.
英文引用格式: Ma Tian,Zhu Xiaowei. Design of high amplitude phase consistency ultrashort wave and wideband amplifier module[J]. Application of Electronic Technique,2026,52(2):87-90.
Design of high amplitude phase consistency ultrashort wave and wideband amplifier module
Ma Tian,Zhu Xiaowei
The 16th Institute of CETC
Abstract: With the rapid development of electronic technology, the demand for ultrashort wave and wideband amplifier module in electronic surveillance equipment is increasing day by day. This article designs a high amplitude phase consistency ultrashort wave and wideband amplifier module based on practical needs. Impedance transformation scheme is adopted to achieve the impedance of two input terminals from 200 Ω to 50 Ω. Small signal amplification and one channel RF output are achieved through amplification circuits and balanced to unbalanced conversion. In addition, gas discharge tubes and TVS tubes are used to achieve lightning protection design. The test results show that the gain of this amplifier module is more than 15 dB and the noise figure is less than 2.9 dB in the band of 570 MHz under the conditions of 15 V working voltage. Through the process control, this amplifier module's phase consistency is less than ±3°, amplitude consistency is less than ±0.5 dB, and has the advantages of small size, light weight, low failure repair rate, etc. It is in the leading position of technology in the domestic similar products, and widely used in the detection equipment already.
Key words : high amplitude phase consistency;ultrashort wave;wideband;impedance transformation;amplifier module

引言

近年來,隨著我國電子裝備和通信系統(tǒng)等領(lǐng)域的飛速發(fā)展,對超短波、超寬帶、多功能放大組件類產(chǎn)品的需求持續(xù)上升。尤其是電子偵察類設(shè)備中,其抗燒毀能力、噪聲系數(shù)、批次相位一致性、批次幅度一致性等指標(biāo)直接決定了整機(jī)設(shè)備的核心指標(biāo),且作為天線后端的第一個組件設(shè)備,需具備特性阻抗變換及較強(qiáng)的防雷和抗干擾要求。因此,該組件的研制具有十分重要的軍事應(yīng)用價(jià)值[1-2]。

根據(jù)某系統(tǒng)實(shí)際需求,需研制一款高幅相一致性超短波寬帶放大組件,采用阻抗變換方案,實(shí)現(xiàn)放大組件輸入阻抗由200 Ω變換至50 Ω。通過放大電路、平衡—不平衡的轉(zhuǎn)化,實(shí)現(xiàn)小信號放大及一路射頻輸出。并具備防雷功能。

由于組件需求功能較多、外形尺寸固定,市面上無合適產(chǎn)品可直接使用,因此需定制化設(shè)計(jì)。組件主要指標(biāo)如下:

(1)工作頻段:VHF-P波段;

(2)工作帶寬:570 MHz;

(3)增益:≥15 dB;

(4)噪聲系數(shù):≤2.9 dB;

(5)限幅功率:≤10 W連續(xù)波;

(6)輸出三階截點(diǎn)值:30 dBm;

(7)射頻輸入:2路(200 Ω);

(8)射頻輸出:1路(50 Ω);

(9)射頻輸入端進(jìn)行防雷設(shè)計(jì);

(10)批次相位一致性≤±3°;

(11)批次幅度一致性≤±0.5 dB;

(12)外形尺寸:110mm×28 mm×18 mm(不含連接器)。


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作者信息:

馬天,朱小偉

(中國電子科技集團(tuán)公司第十六研究所, 安徽 合肥 230043)

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