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http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/34525
標題: | 利用低溫共燒陶瓷製程設計應用於802.11a/b/g 無線區域網路系統之差動發射/接收切換開關 The Design of Differential T/R Switches for 802.11a/b/g WLAN System using LTCC |
作者: | Chiao-chieh Chang 張喬傑 |
指導教授: | 盧信嘉(Hsin-chia Lu) |
關鍵字: | 低溫共燒陶瓷,802.11,差動發射/接收切換開關, LTCC,802.11,differential T/R switch, |
出版年 : | 2006 |
學位: | 碩士 |
摘要: | 在本論文提出應用於雙頻無線區域網路頻段差動傳送/接收切換開關之設計。假若在電路中使用平衡式架構,則可省去baluns,並且對於平衡式架構具有使用虛擬接地以改善較差的實際接地,並降低共模雜訊干擾等優點。此外,本論文所提出之電路架構具有在接收時不消耗功率之特性,特別適用於無線通訊的相關應用。
在設計新的傳送接收開關中,採用LTCC (low-temperature co-fired ceramics)的製程,可相較於一般如FR4的板材,此基材在微波頻具有較低之正切損失,並具有多層結構有利於平衡式傳輸線的設計。本論文並提出基於此架構兩個分別操作於2.4GHz及5.2GHz的開關及其量測結果。 In this thesis, we present a new architecture of differential T/R switches for wireless local-area network (WLAN). If we use the balanced-type circuit, the number of the devices, such as a balun, can be reduced. The balanced circuit can also improve the poor ground and suppress the common-mode interference. In addiction, the proposed architecture consumes no DC power at the receiving mode, which is especially suitable for portable wireless applications. The LTCC (low temperature co-fired ceramic) is chosen for its low loss and multi-layer structure, which will give better insertion loss and give more freedom in balanced-type device design. The design procedure and measurement results of two differential switches operating at 2.4GHz and 5.2GHz are presented in this thesis. |
URI: | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/34525 |
全文授權: | 有償授權 |
顯示於系所單位: | 電子工程學研究所 |
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