應用於WLAN/WiMAX雙模系統之收發機前端射頻積體電路設計

The Design of a Dual-band Transceiver RF front-end integrated circuit for WLAN/WiMAX Applications

江岳庭(Yueh-Ting Chiang)

指導教授 ： 楊正任

元智大學/電機通訊學院/通訊工程學系/碩士(2009年)

https://doi.org/10.6838/YZU.2009.00074

摘要

本論文因應未來WLAN與WiMAX雙系統整合與CMOS製程之兩大主流趨勢，研究使用於雙頻帶之收發機設計，論文中分別完成雙頻帶射頻接收機與發射機設計，兩設計皆使用TSMC 0.18μm 1P6M CMOS製程技術。
接收機設計題目為應用於WiMAX/WLAN雙頻帶低電壓小面積射頻接收機前端積體電路，電路設計包含1.低雜訊放大器2.混頻器3.增益可調中頻巴倫器。整體電路採用低偏壓設計，達成低消耗功率的目標，並設計變壓器架構低雜訊放大器，簡化不同區塊間所需之匹配網路，最後設計增益可調中頻巴倫器，利用增益可變功能來提升整體接收機線性度表現。
發射機設計題目為應用於WiMAX/WLAN雙頻帶小面積射頻發射機前端積體電路，電路架構包含1.雙頻帶功率放大器2.升頻混頻器。使用CMOS製程設計功率放大器，配合雙頻帶匹配網路達成雙頻帶功率輸出，並使用變壓器架構設計高線性混頻器，以此減少晶片面積與射頻放大器串聯數量。

關鍵字

射頻發射機 ； 射頻接收機 ； 雙模 ； 阻抗轉換器

並列摘要

ABSTRACT
In order to conform to the trends which are WLAN/WiMAX dual-band system and CMOS technology, we study in dual-band CMOS transceiver. This thesis presents and implementation of a receiver and a transmitter in TSMC 0.18um RF CMOS process. Both of them are designed to meet the requirement of specifications which are WiMAX 802.16e mobile and WLAN 802.11a.
The compact dual-band low voltage receiver RF front-end integrated circuit is consisting of broad-band LNA, down mixer and variable gain IF balun. This design achieves low power consumption with low supply voltage and compact size by employing a transformer structure LNA. Finally, we design a variable gain IF balun to improve the linearity of this receiver.
The compact dual-band transmitter RF front-end integrated circuit is consisting of dual-band PA and high linearity up-mixer. The CMOS PA is using a dual-band matching network to supply high output power at two bands. Finally, we design a high linearity mixer base on transformer in order to reduce the number of RF cascade amplifiers and chip size.

並列關鍵字

RF Transmitter ； RF Receiver ； dual-band ； WiMAX ； transformer

參考文獻

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