尚未登入 請由此登入
 
 
 










知識分享平台Eshare檢視資訊View
返回前一頁Back
      [檢舉]

標題Title: Develop an Implantable CPW-fed Antenna on the MgTa1.5Nb0.5O6 Ceramic Substrate
作者Authors: 鄭建民,Hung-Chi Yang..等
上傳單位Department: 電子工程系
上傳時間Date: 2009-11-22
上傳者Author: 鄭建民
審核單位Department: 電子工程系
審核老師Teacher: 鄭建民
檔案類型Categories: 論文Thesis
關鍵詞Keyword: Implantable, CPW-fed, Ceramic substrate
摘要Abstract: An implantable antenna for the applications of biomedical telemetry has been widely studied in the modern medical science. The purpose of this study is to design and fabricate an implantable antenna which exhibits enhanced bandwidth (25%) and miniaturization for the use of implantation. In this letter, the microwave dielectric ceramic (MgTa1.5Nb0.5O6) substrate which possesses high dielectric constant (εr=28) and high quality factor is used as the substrate of the implantable antenna, a CPW-fed monopole dual spiral structure is adopted as the antenna pattern and fabricated by the print-screening technique. The effects of shape, length, size, and thicknesses of the proposed antenna would be evaluated and investigated in this letter. In addition, the center frequency is required to conform to the band (402 ~ 405 MHz) provided by Medical Implant Communication Services (MICS). From the experimental results of the proposed antenna immersed in phantom fluid, the optimum antenna exhibits a miniaturized volume of 288 mm3, bandwidth of 134 MHz (33%), return loss 16.32 db at 404 MHz, the SAR of 142 W/Kg, and gain of 16 db, respectively.

檔案名稱
FileName
檔案大小
Size
檔案格式
Format
瀏覽次數
Browses
下載次數
Downloads
2009_11_a64920bf.pdf 272Kb pdf 997 354
文件中檔案:
 

開啟檔案Download
 
 
返回前一頁