圓形極化介電質共振器天線(二)
  ‧ 專利名稱 圓形極化介電質共振器天線(二)
  ‧ 專利證書號 I338975
US 7,782,266 B2
  ‧ 專利權人 國立臺灣大學
  ‧ 專利國家
    (申請日)
中華民國 (2007/12/14)
美國 (2008/01/14)
  ‧ 發明人 張子軒 , 江簡富 ,
 
技術摘要:
本發明係一種圓形極化介電質共振器天線,該天線包括:一基板;一威金森功率分配器;一相位偏移器,連接於該威金森功率分配器;一接地層;以及一介電質共振結構,該共振結構設於該基板上方,包含一介電質本體與一空腔,且該空腔設於該本體中;本發明之圓形極化介電質共振器天線係利用該空腔的設計,增加該天線之線性極化傳輸頻寬,再藉由配置該威金森功率分配器,使該天線可發射及接收圓形極化電磁波,而可適用於衛星通訊、全球互通微波存取(Worldwide Interoperability for Microwave Access,WiMAX)及無線通訊等網路相關產品。
The present invention relates to a circularly-polarized dielectric resonator antenna (DRA). The antenna comprises a substrate, a Wilkinson power divider, a phase shifter, a ground plane and a dielectric resonator, wherein the phase shifter is connected to the Wilkinson power divider. Besides, the dielectric resonator is disposed on the ground plane, and includes a dielectric main body and a well disposed above the substrate. Additionally, the antenna is adopted to increase the linear radiation bandwidth by utilizing the well, and transceives a circularly-polarized electromagnetic wave by utilizing the Wilkinson power divider. Consequently, the circularly-polarized dielectric resonator antenna can be applied in the fields of satellite communication, Worldwide Interoperability for Microwave Access (WiMAX), and wireless communication.




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