共查询到20条相似文献,搜索用时 203 毫秒
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同轴接触件在射频连接器、混装连接器中有应用,用于射频信号的传输.现有同轴接触件导线压接组装工艺基础薄弱,相关标准规定不具体,开展同轴接触件导线压接工艺技术研究,对提升同轴接触件导线压接组装质量和效率具有重要意义. 相似文献
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本文针对目前我国射频连接器市场上SMA型射频同轴连接器存在的薄壁、单一环氧树脂灌封和两槽插孔问题进行具体分析,指出其中不足,并提出具体的改进建议,以利于提高我国SMA型射频同轴连接器的质量和整体水平。 相似文献
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本文主要介绍SMA反极性气密封射频同轴微带连接器的设计,在满足射频同轴连接器气密封和电性能指标的前提下,避免微放电效应的发生. 相似文献
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降低射频同轴连接器电压驻波比的方法探讨 总被引:1,自引:0,他引:1
本文从分析影响射频同轴连接器电压驻波比(VSWR)的因素入手,对在新产品设计,老产品改造和生产过程中如何降低射频同轴连接器的VSWR的途径和措施进行了探讨,以期取得用户满意. 相似文献
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射频同轴连接器在长时间使用,经过了高低温环境以后,会产生内外导体之间的相对转动,使电气指标发生变化,从而影响整机的性能。常用的设计方法很难克服这一问题。本文给出了防止射频同轴连接器在严酷的温度冲击后,内外导体之间转动的结构设计方法。该方法已经成功地应用于7/16型射频同轴连接器产品中。 相似文献
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本文阐述了微波器件的电压驻波比和反射系数,测量射频同轴连接器电压驻波比的意义。介绍了测量射频同轴连接器电压驻波比的测量方法。 相似文献
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本文通过对国内、国际和国外射频同轴连接器的标准,品种系列、结构尺寸、性能指标的对比分析,找出差距和问题,指明射频同轴连接器采用国际标准和国外先进标准的开发方向,并确定采用国际标准的措施。 相似文献
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本文主要对射频同轴连接器、电缆组件的失效模式和机理进行了分析,并对如何提高射频同轴连接器、电缆组件的可靠性进行了较详细的讨论。 相似文献
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The RG220/U cable connector has been used very successfully for 20 years under difficult conditions. Its design principle can be applied to a wide variety of other cable types and voltages. The principle of the tool for machining the cable can be adapted to many different cable types. The main manufacturing difficulty is the execution of the finger contacts to tight tolerances. These contacts must be handled with care and checked individually before assembly. The radiation resistance of ScotchcastR 815 is better compared to polyethylene and therefore does not limit the use of this connector design. Finally, the design was successfully adapted to mass production and the price can be compared favorably with a commercial 30 kV connector. For the Large Hadron Collider, two large injection systems and two extraction systems are under construction requiring more than 800 coaxial high-voltage connectors. In view of our very positive experience and the excellent long-term behavior, we conclude that the design of these connectors is also perfectly adapted for the new project 相似文献
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本文介绍了常用于电磁兼容自动测试系统中的带GPIB接口的可程控射频同轴开关转换仪。该转换仪主要通过大规模集成电路来实现GPIB接口功能,并在软硬件和结构设计的过程中考虑了射频效应及其潜在的干扰,因而具有很高的可靠性。如果所用的同轴开关的射频性能足够好,那么,本射频同轴开关转换仪将在从DC直到射频的整个频率范围内具有很好的驻波比和插入损耗等特点。本文具体给出硬件的设计原理及其有关干扰问题的解决方案。 相似文献
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Feray Hac?velio?lu Alinur B��y��kaksoy 《Electrical Engineering (Archiv fur Elektrotechnik)》2010,92(4-5):165-171
In the present work, a rigorous Wiener?CHopf approach is used to investigate the radiation characteristics of a two-part coaxial waveguide, whose left part is perfectly conducting while the surface impedances of the inner and outer cylinders of the right part are different from each other. The representation of the solution to the boundary-value problem in terms of Fourier integrals leads to two simultaneous modified Wiener?CHopf equations whose formal solution is obtained by using the factorization and decomposition procedures. The solution involves two infinite sets of unknown coefficients satisfying two infinite systems of linear algebraic equations. These systems are solved numerically, and some graphical results showing the influence of the spacing between the coaxial cylinders and the surface impedances on the reflection coefficient are presented. 相似文献
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本文介绍了同轴连接器表面镀银发生氧化的原因以及相关的预防措施和替代方案.银的氧化是空气中的硫化物、氯化物等氧化物质与银离子发生的化学反应,银氧化后会改变原本光亮的色泽,出现黄色、褐色,甚至是黑色斑点.但实际上,反应生成的物质拥有与纯银等同的导热和导电性能.为了避免发生变色可以采取相应的保护措施,甚至使用新型的电镀材料来替代银电镀. 相似文献
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新型漏泄同轴电缆的性能及制造 总被引:1,自引:0,他引:1
漏泄同轴电缆是一种新型馈线,广泛用于电磁波被覆盖的盲区。新型漏泄同轴电缆的研制需要有先进的自动化设备、特殊的测试手段,以及新型材料与结构,使其具备优异电气性能;产品特殊设计可使其适应无线通信的不同工作频段,并解决了场强的离散性和长距离传输的问题。 相似文献
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The emergence of quick lock connectors, particularly quick lock versions of the SMA and N connectors (QMA and QN, respectively), was an inevitable development in the RF connector industry and is of significant importance in that nearly 50% of all practical applications for RF connectors are currently supported by either SMA or N. Once QMA and QN can achieve similarity in cost and performance to the present SMA and N connectors, they will take the place of their predecessors in most applications, creating a huge new market. Our RF team has long been dedicated to research and development of these two connector types in the hopes of creating an optimal design. In this article, we will show some of the results of our research. 相似文献
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讨论了开口同轴探头技术测量液体复介电常数的理论和实验。在仅考虑同轴线横电磁波(TEM)主模反射波的情况下,用被测液复波数的多项式逼近同轴开口端输入导纳值,简化了复介电常数的求解。以用醇在频率1~18 GHz的导纳测量值求解复介电常数,验证了随多项式项数目增加计算的收敛性。在实验中,为了确定法兰直径最小值和被测液样品最小用量,提出了用被测液边界面与同轴开口面的两项功率比(辐射功率与入射功率比以及无功功率比)作为指标描述边界面电磁场的衰减程度。以1%浓度和3.5%浓度食盐水介电特性测量为例,使用孔径3.20 mm探头,验证了TEM模型法得出的测量结果在0.6~4.5 GHz频率上相比参考值的偏差小于5%。 相似文献