LTCC均衡器及延迟线电路研究
发布时间：2018-07-27 19:42
【摘要】：LTCC(Low Temperature Co-fired Ceramic)技术是于1982年由休斯公司开发的新型材料技术。该技术能将无源元件集成在基片内部,并且在其表面可贴装IC和有源芯片,制成无源和有源的集成功能模块。均衡器主要用于和放大器一起构成固态驱动放大模块去驱动行波管放大器,保证行波管的输出曲线比较平坦。较高的均衡精度、足够大的均衡量、较小的插入损耗和回波损耗是设计均衡器时需要着重考虑的指标。LTCC的多层布线能力有利于均衡器的小型化设计。延迟组件作为相控阵雷达的重要部件之一,其进一步的发展将有助于提高整个相控阵雷达的性能。用于将电信号延迟一段时间的器件叫做延迟线,当将延迟线与开关结合在一起能够实现具体的延迟功能的器件就叫延迟组件。延迟组件要求具有较小的色散和插入损耗、较高的相位精度和比较平坦的幅频特性。本文在针对均衡器的理论做了详细分析之后,根据LTCC技术的工艺特点,设计出了一种新型的基于LTCC技术的三维的复合左右手传输线谐振枝节,详细的分析了该谐振枝节对谐振频率、均衡量和带宽等指标的控制。采用该谐振枝节设计制作的均衡器的尺寸得到了很大的缩小,对均衡器的小型化研究具有重要意义,并且由于可调参数较多,使得均衡器的可调性大大增强。最后设计制作了两个频带的均衡器,分别工作在2~6GHz和6~18GHz,测试结果与仿真结果基本一致。接着对LTCC延迟组件的无源结构进行了研究,分析了切角对相位的影响,研究了平行双线之间的耦合,最后对LTCC中的隔离孔做了分析研究,针对延迟组件设计了相应的直流控制电路。在上述工作的基础上,仿真设计了基于LTCC技术的延迟段和直通段。最后结合开关芯片设计了一款工作在Ka波段的6位延迟组件,该延迟组件具体尺寸为68mm×48mm×15mm,测试结果为:插入损耗小于等于35.3dB,驻波小于等于1.93,带内波动小于等于2.6dB,相位线性度小于等于17?,满足指标要求。
[Abstract]:LTCC (Low Temperature Co-fired Ceramic) is a new material technology developed by Hughes in 1982. The technology can integrate passive components into the substrate and mount IC and active chip on its surface to make passive and active integrated function modules. The equalizer is mainly used to drive the TWT amplifier with the solid-state driving amplifier to ensure that the TWT output curve is relatively flat. Higher equalization accuracy, large enough equalization quantity, small insertion loss and echo loss are important indexes to be considered in the design of equalizer. The multilayer cabling ability of LTCC is beneficial to the miniaturization design of equalizer. As one of the important components of phased array radar, the further development of delay module will help to improve the performance of the whole phased array radar. A device used to delay an electrical signal for a period of time is called a delay line. When a delay line is combined with a switch to achieve a specific delay function, it is called a delay component. Delay components require smaller dispersion and insertion loss, higher phase accuracy and flat amplitude-frequency characteristics. After the detailed analysis of the theory of equalizer and according to the technological characteristics of LTCC technology, a new three-dimension resonant branch of compound left-hand transmission line based on LTCC technology is designed in this paper. The control of resonance frequency, equalization and bandwidth is analyzed in detail. The size of the equalizer designed with the resonant branch is greatly reduced, which is of great significance to the study of the miniaturization of the equalizer, and the tunability of the equalizer is greatly enhanced because of the large number of adjustable parameters. Finally, two band equalizers are designed and fabricated, which work in 2~6GHz and 61GHz, respectively. The test results are in good agreement with the simulation results. Then, the passive structure of LTCC delay module is studied, the influence of tangent angle on phase is analyzed, and the coupling between parallel two lines is studied. Finally, the isolation hole in LTCC is analyzed and studied. The DC control circuit is designed for the delay module. Based on the above work, the delay section and through section based on LTCC technology are simulated and designed. Finally, a 6-bit delay module working in Ka band is designed based on switch chip. The specific size of the delay module is 68mm 脳 48mm 脳 15mm. The test results show that the insertion loss is less than or equal to 35.3dB, the standing wave is less than or equal to 1.93, the in-band fluctuation is less than or equal to 2.6dB, and the phase linearity is less than or equal to 17db.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN715
本文编号：2148933
[Abstract]:LTCC (Low Temperature Co-fired Ceramic) is a new material technology developed by Hughes in 1982. The technology can integrate passive components into the substrate and mount IC and active chip on its surface to make passive and active integrated function modules. The equalizer is mainly used to drive the TWT amplifier with the solid-state driving amplifier to ensure that the TWT output curve is relatively flat. Higher equalization accuracy, large enough equalization quantity, small insertion loss and echo loss are important indexes to be considered in the design of equalizer. The multilayer cabling ability of LTCC is beneficial to the miniaturization design of equalizer. As one of the important components of phased array radar, the further development of delay module will help to improve the performance of the whole phased array radar. A device used to delay an electrical signal for a period of time is called a delay line. When a delay line is combined with a switch to achieve a specific delay function, it is called a delay component. Delay components require smaller dispersion and insertion loss, higher phase accuracy and flat amplitude-frequency characteristics. After the detailed analysis of the theory of equalizer and according to the technological characteristics of LTCC technology, a new three-dimension resonant branch of compound left-hand transmission line based on LTCC technology is designed in this paper. The control of resonance frequency, equalization and bandwidth is analyzed in detail. The size of the equalizer designed with the resonant branch is greatly reduced, which is of great significance to the study of the miniaturization of the equalizer, and the tunability of the equalizer is greatly enhanced because of the large number of adjustable parameters. Finally, two band equalizers are designed and fabricated, which work in 2~6GHz and 61GHz, respectively. The test results are in good agreement with the simulation results. Then, the passive structure of LTCC delay module is studied, the influence of tangent angle on phase is analyzed, and the coupling between parallel two lines is studied. Finally, the isolation hole in LTCC is analyzed and studied. The DC control circuit is designed for the delay module. Based on the above work, the delay section and through section based on LTCC technology are simulated and designed. Finally, a 6-bit delay module working in Ka band is designed based on switch chip. The specific size of the delay module is 68mm 脳 48mm 脳 15mm. The test results show that the insertion loss is less than or equal to 35.3dB, the standing wave is less than or equal to 1.93, the in-band fluctuation is less than or equal to 2.6dB, and the phase linearity is less than or equal to 17db.
【学位授予单位】：电子科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TN715
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