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首页> 外文会议>37~(th) IMAPS Nordic Annual Conference 10-13 September 2000 Helsingor, Denmark >An Investigation of the Properties of LTCC Materials and Compatible Conductors for their use in Wireless Applications
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An Investigation of the Properties of LTCC Materials and Compatible Conductors for their use in Wireless Applications

机译：用于无线应用的LTCC材料和兼容导体的性能研究

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There is a great increase in the application of LTCC technologies for constructing microwave circuits, both for operation in handheld (1 to 4 GHz) and fixed site (25 to 45 GHz) applications. Performance of the materials can be critical to the circuit and system performance. What is generally needed is a dielectric with well defined dielectric constant and low loss. Other factors such as temperature stability of resonant circuits is also important. At the same time, compatible conductors are needed which must be capable of precise geometry control and high conductivity when buried within the tape. This paper considers both the theoretical and practical aspects of the application of such materials. A theoretical analysis of the relative importance of dielectric loss and conductor loss has been carried out, in order to separate and more fully understand the importance of the two factors. Combined with this has been a major program of work to establish the real performance of materials. A full set of measurements on a range of alternative LTCC materials from different suppliers has been carried out to characterise them electrically and this data will be presented and linked to the theoretical analysis. Electrical tests use a variety of techniques and comparisons are drawn between these to indicate the most appropriate procedures for the various parameters involved. Work has been particularly focussed on a tape technology specifically for operation in the 1 to 4 GHz region, and this together with a compatible photosensitive buried silver conductor technology will also be discussed. This ability to pattern precise geometry conductors within a low loss tape is vital to the realisation of cost effective circuits.
机译：LTCC技术在构造微波电路方面的应用已大大增加，无论是在手持式（1至4 GHz）还是在固定位置（25至45 GHz）的应用中运行。材料的性能对于电路和系统性能至关重要。通常需要具有良好定义的介电常数和低损耗的电介质。诸如谐振电路的温度稳定性之类的其他因素也很重要。同时，需要兼容的导体，当它们埋在胶带中时，必须能够进行精确的几何形状控制和高导电性。本文考虑了此类材料应用的理论和实践方面。为了分离和更充分地理解这​​两个因素的重要性，已经对介电损耗和导体损耗的相对重要性进行了理论分析。与此相结合的是确定材料真实性能的主要工作方案。已经对来自不同供应商的一系列替代LTCC材料进行了全套测量，以对它们进行电学表征，并将呈现此数据并将其与理论分析联系起来。电气测试使用多种技术，并在这些技术之间进行比较，以表明所涉及各种参数的最适当程序。工作主要集中在专门用于1至4 GHz区域的胶带技术上，还将与兼容的光敏埋银导体技术一起进行讨论。在低损耗带内对精确几何形状的导体进行构图的能力对于实现经济高效的电路至关重要。

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