Ka波段LTCC延迟组件
发布时间：2018-11-14 15:07
【摘要】：随着雷达在战争中的广泛应用,雷达系统正朝着小型化和多功能的方向发展。作为相控阵雷达系统最重要的部件之一,延迟线组件进一步的发展有助于实现收发模块中的瞬时技术。延迟线是用于将电信号延迟一段时间的元件或器件,它要求在通带内有平坦的幅频特性,小的衰减和色散,有良好的阻抗匹配以及一定相移特性。近期,低温共烧陶瓷(Low Temperature Co-fired Ceramic)技术因其低损耗、高可靠性、高集成度等优异的性能高速发展。与传统延迟线相比,利用LTCC技术研制的延迟线因其小型化、高集成度,更适用于现代雷达系统。本论文首先对LTCC延迟组件的无源结构进行了研究。通过理论推导和仿真软件建模对LTCC传输结构中的微带线、带状线、共面波导以及LTCC垂直互连结构中的层间通孔过渡结构进行了分析研究,得到在Ka波段最优的模型尺寸。还对Ka波段金丝键合技术进行了研究,通过增加金丝键合数量、改善端口阻抗匹配,显著提升了组件的传输性能。在上述工作的基础上,设计了一款工作在Ka波段的基于LTCC技术6路开关延迟线组件。每路延迟线单元由延迟线支路和等损耗直通支路组成,六路延迟线单元按顺序级联以后,通过驱动电路控制MMIC单刀双掷开关选择通路,可以产生最小1?,步进为1?,最大可达63?的延迟量。延迟支路选用了Ferro A6-M材料,延迟信号通过曲折带状线结构,可以实现组件小型化的同时显著减小色散特性。等损耗支路选用了陶瓷基片,为了在不影响驻波性能的前提下增大损耗量,等损耗支路还采用了一种增益均衡器的结构。最终实测延迟组件体积仅为84×47×153mm,并且有优良的驻波系数以及较小的色散效应。显著改善了传统的延迟线诸如体积大、损耗大、可调范围小的缺点。本文对微波传输式延迟组件的研究有重要的参考价值,同时对雷达系统的小型化打下了坚实的基础。
[Abstract]:With the wide application of radar in war, radar system is developing towards miniaturization and multifunction. As one of the most important components of phased array radar system, the further development of delay line module is helpful to realize the instantaneous technology in the transceiver module. Delay line is a component or device used to delay electrical signals for a period of time. It requires flat amplitude-frequency characteristics, small attenuation and dispersion, good impedance matching and certain phase-shifting characteristics in the passband. Recently, low temperature co-fired ceramics (Low Temperature Co-fired Ceramic) technology has been developed rapidly because of its low loss, high reliability and high integration. Compared with the traditional delay line, the delay line developed by LTCC technology is more suitable for modern radar system because of its miniaturization and high integration. In this paper, the passive structure of LTCC delay components is studied. The microstrip line, strip line, coplanar waveguide and interlayer through hole transition structure in LTCC vertical interconnect structure are analyzed by theoretical derivation and simulation software modeling. The optimal model size in Ka band is obtained. The Ka band gold wire bonding technology is also studied. By increasing the number of gold wire bonding and improving the port impedance matching, the transmission performance of the module is improved significantly. Based on the above work, a 6-way switch delay line module based on LTCC technology is designed for Ka band. Each delay line unit is composed of a delay line branch and an equal-loss straight through branch. After the six delay line units are cascaded in sequence, the MMIC single-pole double-throw switch is controlled by the drive circuit to select the path. Up to 63? The amount of delay. The Ferro A6-M material is used in the delay branch. The delay signal can be miniaturized and the dispersion characteristics can be significantly reduced by the zigzag strip structure. The ceramic substrate is used in the equal loss branch. In order to increase the loss without affecting the standing wave performance, the equal loss branch also adopts a gain equalizer structure. The measured volume of the delay module is only 84 脳 47 脳 153mm, and it has excellent standing wave coefficient and small dispersion effect. The disadvantages of traditional delay lines such as large volume, large loss and small adjustable range are greatly improved. This paper has important reference value for the research of microwave transmission delay module and lays a solid foundation for the miniaturization of radar system.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN958.92
本文编号：2331522
[Abstract]:With the wide application of radar in war, radar system is developing towards miniaturization and multifunction. As one of the most important components of phased array radar system, the further development of delay line module is helpful to realize the instantaneous technology in the transceiver module. Delay line is a component or device used to delay electrical signals for a period of time. It requires flat amplitude-frequency characteristics, small attenuation and dispersion, good impedance matching and certain phase-shifting characteristics in the passband. Recently, low temperature co-fired ceramics (Low Temperature Co-fired Ceramic) technology has been developed rapidly because of its low loss, high reliability and high integration. Compared with the traditional delay line, the delay line developed by LTCC technology is more suitable for modern radar system because of its miniaturization and high integration. In this paper, the passive structure of LTCC delay components is studied. The microstrip line, strip line, coplanar waveguide and interlayer through hole transition structure in LTCC vertical interconnect structure are analyzed by theoretical derivation and simulation software modeling. The optimal model size in Ka band is obtained. The Ka band gold wire bonding technology is also studied. By increasing the number of gold wire bonding and improving the port impedance matching, the transmission performance of the module is improved significantly. Based on the above work, a 6-way switch delay line module based on LTCC technology is designed for Ka band. Each delay line unit is composed of a delay line branch and an equal-loss straight through branch. After the six delay line units are cascaded in sequence, the MMIC single-pole double-throw switch is controlled by the drive circuit to select the path. Up to 63? The amount of delay. The Ferro A6-M material is used in the delay branch. The delay signal can be miniaturized and the dispersion characteristics can be significantly reduced by the zigzag strip structure. The ceramic substrate is used in the equal loss branch. In order to increase the loss without affecting the standing wave performance, the equal loss branch also adopts a gain equalizer structure. The measured volume of the delay module is only 84 脳 47 脳 153mm, and it has excellent standing wave coefficient and small dispersion effect. The disadvantages of traditional delay lines such as large volume, large loss and small adjustable range are greatly improved. This paper has important reference value for the research of microwave transmission delay module and lays a solid foundation for the miniaturization of radar system.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：TN958.92
【参考文献】
相关期刊论文 前1条
1 程翔;;11位数控延迟线组件的设计[J];微型机与应用;2013年06期
，本文编号：2331522
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