本論文應用HFSS有限元素法套裝模擬軟體，來建構設計出三款隱藏式天線於PCIE外接卡中之分析模型並進行模擬與實測，其可應用於設計DVB-T頻段之接收天線。
我們亦進行詳細的天線特性如返回損失與遠場輻射場型之分析與實測，以及探討如何改善提升天線場型與增益值，其中包括了外接卡有無機構殼與外接卡置入筆記型電腦後對天線之效能影響。針對改善Type1和Type2兩款天線之輻射效能，我們加上阻抗匹配電路來有效降低天線之返回損失，也建立分析了未阻抗匹配前及匹配後的返回損失數據及5個頻率點的天線場型。最後並以Type2及Type3天線與外接卡附贈之單極天線作實際接收數位電視訊號之比較。

This thesis utilizes the software package HFSS to construct the models of three proposed embedded antennas for built-in PCIE card. We also do some measurement to verify the antenna’s performance of mobile applications for DVB-T frequency band.
The antenna characteristics including return losses, patterns and gains were measured and analyzed by NTUST’s chamber to advance the antenna performance. The antennas also can be embedded in mechanical PCIE structure and laptop to discuss the performance variation for various environments. In order to improve the radiation performance of Type1 and Type2 antennas, the matching circuit is used to improve return losses, gains and patterns. Finally, we compare the DTV signal variation of Type2, Type3 and general monopole antennas for built-in PCIE card.

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