本篇論文主要研究藍芽主動天線模組中接收天線與濾波器、低雜訊放大器。首先在印刷電路板上實現各個獨立式電路，而在設計低雜訊放大器電路時，藉由電容等效電路與基板傳輸線代入模擬，使模擬結果更趨近於實作量測。接著再利用LTCC技術整合為小型化主動天線模組。而在3D化設計上使用立體堆疊方法縮小電路面積，將天線、濾波器、以及低雜訊放大器匹配電路內埋入LTCC基板內，最後實作獨立式電路模組面積為14cm x 2cm，而LTCC主動天線模組則為2.5cm x 0.9cm x 0.1cm，大幅縮小了電路面積，且主動天線模組增益仍維持在8dB以上，返回損耗也有14dB以上，有相當的不錯的特性，因此成功達成利用LTCC技術小型化藍芽主動天線模組的概念。

The main research of about this study is 2.4GHz Bluetooth active antenna module, which consists of receiving antenna, filter and low noise amplifier. First of all, we carry out the function of the isolated circuits on the printed circuit board; secondly, by using LTTC technology, the isolated circuits can be integrated into miniature of active antenna module. And the miniatures of antenna, filter and low noise amplifier circuits can be buried in the LTCC substrate by using method of 3D stack. On the final aspect, the active antenna module size is 2.5cm x 0.9cm x 0.1cm, which is much smaller than the size of isolated circuits (14cm x 2cm). Due to the distinctive performance of the module, we can reach the best way to miniaturize Bluetooth active antenna module by LTCC technology.

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