針對射頻辨識系統（RFID）應用於智慧型建築方面，本論文係提出兩款UHF標籤天線。第一款設計為微型化偶極天線標籤，其搭配束帶來綁附於建築物內部的管線，以應用於物品定位及方便日後管線維修，進而降低成本。第二款設計乃利用微帶天線來研製出具備高增益與圓極化特性之金屬標籤，其可內嵌於住家的金屬門牌，來節省戶籍管理的人力與時間。另外，本論文亦設計出一款具備遠近場輻射特性之S型式偶極天線，其可搭配讀取器於特定範圍內來有效辨識遠場標籤與近場標籤，故適用於供應鏈之輸送帶系統，以提高盤點效率。
另一方面，為了滿足筆記型電腦之無線通訊需求，本論文乃提出一款應用於WWAN頻段之微型化倒F天線，其利用多分枝結構的設計，來有效增加操作頻寬，且搭配複合式陶瓷基板來提高輻射效率。由於此款天線僅有7mm之設計高度，並具備近似全向性場型及良好的輻射效能，因此適合內建於筆記型電腦中。

This thesis first proposes two UHF RFID tag antennas to tackle various building applications. A planar dipole-like tag with a compact size is designed to be fixed with a pipe or other rod structures inside a building, so that the material locations can be exactly detected as well as the maintenances may be performed more efficiently. The cost is thus reduced significantly. To well manage the census data, a metal tag using circular polarization patch antenna is also presented, which is suitable for integration into a doorplate due to its high gain property. Furthermore, this thesis develops an S-shaped dipole antenna with good near-far field characteristic for reader application. For a specific region, the near-filed and far-field tags can be simultaneously detected by our antenna design, so that the management efficiency of transportation system can be improved.
To meet the requirements about wireless communication for the laptop computer, on the other side, a miniaturized inverted-F antenna (IFA) is proposed for WWAN application. This antenna with a multi-branch structure is implemented with a Direct Bond Copper (DBC) substrate, so a wider operating bandwidth and good radiation performance can be both obtained. With a design height of only 7mm, the proposed antenna is well satisfactory to be integrated within the laptop computer for WWAN operation.

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