標題: 應用於IEEE 802.11A之射頻前端發射器設計
RF Transmitter Front-End Design for IEEE 802.11A
作者: 陳聯興
溫瓌岸
電機學院電子與光電學程
關鍵字: 802.11a;發射器;混波器;前置放大器;802.11a;transmitter;mixer;preampilifier
公開日期: 2003
摘要: 在本篇論文中完成了適用於IEEE 802.11a之前端發射器設計,本設計採用聯電0.18-μm 1P6M CMOS製程完成晶片製作,並以矽品QFN20完成封裝,。此顆IC的特點有二點,一是工作的頻寬相當寬(5G~6GHz), 可包含U-NII (5.15G~5.825 GHz)內的所有頻帶。二是所需的外部元件非常少,不再需要balun跟 SAW 濾波器。IC中包含了兩個balun、直接升頻混波器以及三級的前置放大器。模擬的結果可以達到輸出1-dB點為10.5dBm(在5.5GHz),其旁波抑制為38.7dB,轉換增益為13.8 dB。在實際的封裝量測中,輸出1-dB點為3.8dBm(在5.5GHz),旁波抑制有34.3dB,轉換增益為10.5 dB。
In this thesis, a direct-conversion transmitter front-end for IEEE 802.11a has been designed and fabricated in UMC 0.18-μm 1P6M CMOS technology and packaged in SPIL QFN20. There are two features in this chip. First, it operates in the 5 to 6 GHz which covers the U-NII frequency band (5.15 to 5.825GHz). Secondly, it reduces the needs for external component. No external baluns and SAW filters are required. The transmitter front-end contains two baluns, an up-conversion mixer and a three-stage pre-amplifier. The simulation achieves an output 1-dB compression of 10.5 dBm at 5.5GHz with 38.7 dB sideband rejection and 13.8 dB conversion gain. The result of measurement exhibits an output 1-dB compression of 3.8 dBm at 5.5GHz with 34.3dB sideband rejection and 10.5dB conversion gain.
URI: http://140.113.39.130/cdrfb3/record/nctu/#GT009167501
http://hdl.handle.net/11536/63279
Appears in Collections:Thesis


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