緊密之雙頻傳送/接收開關與低雜訊放大器設計與實作

Design and Implementation of the Compact Dual-Band T/R Switch and Low-Noise Amplifier

林岳勳(Yueh-Hsun Lin)

指導教授 ： 陳中平

國立臺灣大學/電機資訊學院/電子工程學研究所/碩士(2011年)

https://doi.org/10.6342/NTU.2011.10791

摘要

近年來，隨著人們依賴通訊系統的程度提高，使得通訊速度以及製作成本成為很重要的課題。所以，我們期待多頻操作來增進通訊效率，以及多頻整合的硬體來降低製作成本。然而，目前金氧半場效電晶體的特性，依然受制於許多製程上先天的缺陷，像是寄生效應。因此，金氧半導體電路設計，仍是一深具挑戰的研究課題。
本篇論文，為達到多頻操作，及節省面積的目的，提出了一系列創新的電路架構。在第三章中，利用共用電感的概念，提出一個節省面積的雙頻傳送/接收開關。在第四章中，藉由切換匹配方法的技巧，可使雙頻低雜訊放大器在節省面積的情況下，雜訊指數獲得改善。

關鍵字

接收器 ； 無線 ； 前端電路 ； 傳送/接收開關 ； 低雜訊放大器 ； 緊密 ； 雙頻

並列摘要

Recently, with raises of communication system demand, communication speed and production cost turn out to be vital issues. As a result, multi-band operation to enhance the communication efficiency and multi-band combination to lower the production costs are expected. Unfortunately, the development of CMOS circuits has been long impeded by inherent shortcomings such as parasitic components. It is still a challenging task for designers to realize CMOS circuits near the transistor cutoff frequency.
In this thesis, to operate in multi-band in an effective chip area, novel circuit topologies are developed for dual-band operations. In Chapter 3, an inductor-reconfiguration technique is introduced to the dual-band T/R switch, thus the single inductor can be reused in the transmitting and receiving modes. In Chapter 4, by switching the matching circuit, the noise figure of the dual-band LNA can be improved in a small chip area.

並列關鍵字

receiver ； wireless ； front-end ； T/R switch ； LNA ； compact ； dual-band

參考文獻

[1] Adiseno, M. Ismail, and H. Olsson, “A wide-band RF front-end for multi-band multi-standard high-linearity low-IF wireless receivers,” IEEE Journal of Solid-State Circuits, vol. 37, pp. 1162-1168, Sept. 2002.

[2] Stephen Wu and Behzad Razavi, “A 900-MHz/1.8-GHz CMOS Receiver for Dual-Band Applications,” IEEE JOURNAL OF SOLID-STATE CIRCUITS, VOL. 33, NO. 12, DECEMBER 1998.

[3] Z. Li and K. K. O, " A Dual Band CMOS Front end With Two Gain Mode for Wireless LAN Applications, " IEEE JOURNAL OF SOLID-STATE CIRCUITS, Vol. 39,pp.2069-2073.NOV .2004.

[5] Ehsan Kargaran and Bahman Madadi, “Design of a Novel Dual-Band Concurrent CMOS LNA With Current Reuse Topology,” 2010 International Conference on Networking and Information Technology.

[6] Hossein Hashemi and Ali Hajimiri, “Concurrent Multiband Low-Noise Amplifiers—Theory, Design and Applications” IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 50, NO. 1, Jan. 2002