tag:blogger.com,1999:blog-8179300626400831624.post-49326455420656352172007-08-01T14:57:00.001-07:002007-08-01T14:57:42.894-07:00<DIV><FONT size=2> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-FAMILY: Times-Roman; mso-bidi-font-family: Times-Roman"><?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p><FONT face="Times New Roman" size=3></FONT></o:p></SPAN></P><FONT size=3><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: Times-Roman; mso-ascii-font-family: Times-Roman; mso-hansi-font-family: Times-Roman">論文發表人</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Times-Roman; mso-bidi-font-family: Times-Roman"><FONT face="Times New Roman">: </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: Times-Roman; mso-ascii-font-family: Times-Roman; mso-hansi-font-family: Times-Roman">李振榮</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Times-Roman; mso-bidi-font-family: Times-Roman"><FONT face="Times New Roman">(</FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: Times-Roman; mso-ascii-font-family: Times-Roman; mso-hansi-font-family: Times-Roman">加州大學洛杉磯分校電機工程博士班</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Times-Roman; mso-bidi-font-family: Times-Roman"><FONT face="Times New Roman">)<o:p></o:p></FONT></SPAN></FONT></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-FAMILY: Times-Roman; mso-bidi-font-family: Times-Roman"><o:p><FONT face="Times New Roman" size=3>&nbsp;</FONT></o:p></SPAN></P> <P class=MsoNormal style="MARGIN: 0cm 0cm 0pt; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-FAMILY: Times-Roman; mso-bidi-font-family: Times-Roman"><A href="http://www.ims2007.org/"><FONT face="Times New Roman" size=3>http://www.ims2007.org/</FONT></A><o:p></o:p></SPAN></P> <P class=MsoNormal style="TEXT-JUSTIFY: inter-ideograph; MARGIN: 0cm 0cm 0pt; TEXT-ALIGN: justify; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-FAMILY: Times-Roman; mso-bidi-font-family: Times-Roman"><o:p><FONT face="Times New Roman" size=3>&nbsp;</FONT></o:p></SPAN></P> <P class=MsoNormal style="TEXT-JUSTIFY: inter-ideograph; MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: justify; mso-layout-grid-align: none"><FONT size=3><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">本篇論文主要是討掄一個寬頻正交混合器的設計</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">. </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">此設計最主要是利用寬頻威爾金森功率分配器和利用超穎物質傳輸線來達成的寬頻相差去完成</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">. </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">將威爾金功率分配器和超穎物質分配器結合後</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">, </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">對於相差</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">90°±5°</FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">和</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">0.48</FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">功率差的公差來說</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">, </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">其成效可以達到</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">67%</FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">的頻寬</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">. </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">除此之外</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">, </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">完整的四端寬頻證交耦合器需要再利用一個功率合成器</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">. </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">在此</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">, </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">對於相差</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">90°±5°</FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">和</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">0.48</FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">功率差的公差來說</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">, </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">其效果也可以達到</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">67%</FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">的頻寬</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">. </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">為了證明所提出的正交寬頻混合器的可應用性</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">, </FONT></SPAN><SPAN style="FONT-FAMILY: 新細明體; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-ascii-font-family: 'TimesNewRoman,Bold'; mso-hansi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">我們用一個利用向量加法的連續相移器去證明其潛力</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><FONT face="Times New Roman">.<o:p></o:p></FONT></SPAN></FONT></P> <P class=MsoNormal style="TEXT-JUSTIFY: inter-ideograph; MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: justify; mso-layout-grid-align: none"><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold"><o:p><FONT face="Times New Roman" size=3>&nbsp;</FONT></o:p></SPAN></P> <P class=MsoNormal style="TEXT-JUSTIFY: inter-ideograph; MARGIN: 0cm 0cm 0pt; LINE-HEIGHT: 150%; TEXT-ALIGN: justify; mso-layout-grid-align: none"><FONT size=3><FONT face="Times New Roman"><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">This paper presents a broadband quadrature hybrid which makes use of the broadband power division properties of conventional Wilkinson power splitters along with broadband phase difference achieved using metamaterial based delay lines. The bandwidth of the 90°±5° </SPAN><SPAN lang=EN-US style="FONT-FAMILY: Times-Bold; mso-bidi-font-family: Times-Bold; mso-bidi-font-weight: bold">phase difference and 0.48dB power difference between the outputs of the Wilkinson power splitter and metamaterial delay line combination is 67%. The full four-port coupler is formed employing an additional combiner. A phase/power difference between the hybrid outputs of </SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">90</SPAN><SPAN lang=EN-US style="FONT-FAMILY: Times-Bold; mso-bidi-font-family: Times-Bold; mso-bidi-font-weight: bold">°</SPAN><SPAN lang=EN-US style="FONT-FAMILY: TimesNewRoman,Bold; mso-bidi-font-family: 'TimesNewRoman,Bold'; mso-bidi-font-weight: bold">±10° </SPAN><SPAN lang=EN-US style="FONT-FAMILY: Times-Bold; mso-bidi-font-family: Times-Bold; mso-bidi-font-weight: bold">and 1.2dB, respectively, are observed over the same 67% bandwidth. To demonstrate the applicability of the proposed broadband quadrature hybrid, a continuous phase shifter which is based on the vector sum method is tested.</SPAN></FONT></FONT></P></FONT></DIV>駐洛杉磯辦事處文化組http://www.blogger.com/profile/03064362193399203939noreply@blogger.com