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W波段高集成多通道多功能封装模块研究
电子技术应用
顾江川,范冲
南京国博电子股份有限公司
摘要: 针对W波段射频前端需求,设计了一组基于陶瓷封装工艺的W波段四通道上变频发射和下变频接收模块。该对模组均采用一次变频架构,上变频发射模块将78~80 GHz的信号经混频、放大、滤波传输后,传输到天线端口实现上变频至92~94 GHz频段;下变频接收模块将92~94 GHz频段信号经过低噪声放大、混频、滤波传输后,进入后端实现下变频至78~80 GHz。该前端本振信号为X波段,实现功率分配和信号放大功能,为多通道提供中频信号。为提高模块射频性能和可靠性和降低成本,设计了一种基于封装上装载技术(LOP)的滤波传输结构。模块实物测试结果表明:研发的W波段上变频发射模块在工作频带(92~94 GHz)内输出功率均大于12 dBm,输出功率增益大于6 dB;W波段下变频前端各通道在工作频带内的噪声小于9dB,增益大于10 dB。
中圖分類(lèi)號(hào):TN42 文獻(xiàn)標(biāo)志碼:A DOI: 10.16157/j.issn.0258-7998.256748
中文引用格式: 顧江川,范沖. W波段高集成多通道多功能封裝模塊研究[J]. 電子技術(shù)應(yīng)用,2025,51(8):103-107.
英文引用格式: Gu Jiangchuan,F(xiàn)an Chong. Study of W-band high-integrated multi-functional package modules[J]. Application of Electronic Technique,2025,51(8):103-107.
Study of W-band high-integrated multi-functional package modules
Gu Jiangchuan,Fan Chong
NanJing Guobo Electronics Co., Ltd.
Abstract: According to the requirements of W-band radio frequency (RF) front-ends, a couple of W-band four-channel up-conversion transmitter and down-conversion receiver modules based on ceramic packaging technology are designed . Both modules employ a single-conversion architecture. Through mixing, amplification, and filtering, the input intermediate frequency (IF) signal at the bandwidth of 78~80 GHz transforms into the output signal at the bandwidth of 92~94 GHz, and then the output signal transmits into the antenna port. The down-conversion receiver module processes W-band signals through low-noise amplification, mixing, and filtering, and then converts the signal to the bandwidth of 78~80 GHz for further processing at the back-end. The local oscillator (LO) signal for the front-end operates in the X-band, providing power division and signal amplification functions to supply LO signals for multiple channels. In order to realize the high performances,high stability and low cost of the RF modules, a filtering and transmission structure based on the load on package (LOP) technology is studied. The measured results of prototype show that the W-band up-conversion transmitter module achieves an output power over 12 dBm, the power gain is greater than 6 dB at the frequency of 92~94 GHz. The W-band down-conversion receiver module exhibits a noise factor less than 9 dB and a gain greater than 10 dB within the operating bandwidth.
Key words : W-band;package module;filter transmission structure

引言

W波段作為“大氣窗口”的重要組成部分,在大氣傳輸過(guò)程中,具有低損耗的傳輸特性,另外,W頻段具有帶寬寬、精度高、波長(zhǎng)短、抗干擾能力強(qiáng)等特點(diǎn),因此在通信、雷達(dá)、成像、電子對(duì)抗等多領(lǐng)域獲得廣泛應(yīng)用[1]。例如,W波段雷達(dá)系統(tǒng)具備小型化、高集成度的特點(diǎn),使得雷達(dá)設(shè)備能夠方便地安裝在車(chē)輛或交通基礎(chǔ)設(shè)施中[2];同時(shí),W波段雷達(dá)能夠適應(yīng)復(fù)雜的天氣條件,如雨、霧等,保持穩(wěn)定的探測(cè)性能[3]。這使其在智慧交通中能夠提供可靠的交通監(jiān)控和預(yù)警服務(wù);另外,W波段雷達(dá)具有較強(qiáng)的抗干擾能力,能夠在復(fù)雜的電磁環(huán)境中平穩(wěn)工作[4],這對(duì)于智慧交通系統(tǒng)中的多傳感器融合應(yīng)用尤為重要??紤]到W波段在電子對(duì)抗、成像、雷達(dá)、通信等諸多領(lǐng)域的優(yōu)勢(shì)與應(yīng)用前景,W波段射頻模組作為射頻系統(tǒng)的的核心部件,開(kāi)展相關(guān)技術(shù)的研究很有必要。

本文提出了一組W波段四通道上變頻發(fā)射和下變頻接收模組,通過(guò)陶瓷封裝技術(shù),實(shí)現(xiàn)了W波段混頻、W波段放大、X波段中頻和W波段射頻濾波傳輸、本振信號(hào)放大以及功分鏈路的一體化集成。測(cè)試結(jié)果表明:W波段上變頻發(fā)射前端在工作頻帶(92~94 GHz)內(nèi)輸出功率均大于12 dB,功率增益大于6 dB;W波段下變頻前端在92~94 GHz頻帶內(nèi)的噪聲小于9 dB,增益大于10 dB。


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作者信息:

顧江川,范沖

(南京國(guó)博電子股份有限公司 ,江蘇 南京 211100)


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