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研究生:蕭昱辰
研究生(外文):Yu-Chen Hsiao
論文名稱:利用封包消除與重建降低諧波雜訊
論文名稱(外文):Spur Suppression Using Envelope Elimination and Restoration
指導教授:陳昭宏陳昭宏引用關係
口試委員:李坤彥余帝穀
口試日期:2019-07-30
學位類別:碩士
校院名稱:國立臺灣大學
系所名稱:工程科學及海洋工程學研究所
學門:工程學門
學類:綜合工程學類
論文種類:學術論文
論文出版年:2019
畢業學年度:107
語文別:中文
論文頁數:60
中文關鍵詞:封包放大器封包消除與重建modified EER
DOI:10.6342/NTU201903227
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近年來行動通訊裝置越來越普及,使得提升射頻發射機效率成為重要的議題,其中功率放大器是影響的主因之一,相較於傳統的固定偏壓功率放大器,動態偏壓功率放大器能有更高的效率,而動態偏壓需要使用封包放大器,動態偏壓放大器的發射機有三種架構,分別為封包追蹤、封包消除與重建以及混合封包消除與重建,本論文設計之封包放大器將應用封包消除與重建發射機當中。
本論文設計的封包放大器採用封包消除與重建的方式以及modified EER,將封包訊號分為封包振幅和相位,高頻訊號由線性放大器處理,低頻訊號則是由切換式放大器,並使用EER的技術將脈衝調變產生的諧波雜訊降低。
With the blooming of wireless communication, mobile communication devices have become quite significant in recent years, so enhancing the efficiency of radio frequency transmitter becomes an important issue. The power amplifier (PA) is one of the main factors affecting the efficiency of the transmitter. The PA with dynamic bias voltage has higher efficiency comparing to the PA with fixed bias voltage. There are three structures of transmitter using the PA with dynamic bias voltage, including envelope tracking (ET), envelope elimination and restoration (EER), and hybrid envelope elimination and restoration (Hybrid EER). The envelope amplifier designed in the thesis will be used in EER.
In this thesis, EER and modified EER are used. EER means to separate the envelope signal into amplitude information and phase information. The high frequency signal is processed by the linear amplifier, and the low frequency signal is processed by the switching amplifier. Furthermore, EER is used to reduce the out-of-band spurs caused by pulse width modulation.
誌謝 i
中文摘要 ii
ABSTRACT iii
目錄 iv
圖目錄 vi
表目錄 x
第 1 章 緒論 1
1.1 研究背景與動機 1
第 2 章 封包放大器 4
2.1 切換式電源轉換器 4
2.1.1 Buck轉換器 4
2.1.2 Boost轉換器 7
2.2 發射機系統架構 10
2.3 封包放大器回顧 13
2.3.1 線性式放大器 13
2.3.2 切換式放大器 15
2.3.3 串聯混合式放大器 16
2.3.4 並聯混合式放大器 18
2.3.5 串並聯混合式放大器 19
第 3 章 並聯混合型放大器 20
3.1 並聯混合型放大器控制方法 20
3.2 輸入訊號 22
第 4 章 電路設計 23
4.1 設計考量 24
4.2 線性級設計 28
4.3 控制級設計 29
4.4 切換級設計 29
第 5 章 量測 31
5.1 量測環境 31
5.2 量測結果 36
5.2.1 封包放大器量測 36
5.2.2 EER發射機和改良式EER發射機量測 39
5.2.3 k值量測 44
第 6 章 結論與未來展望 57
6.1 結論 57
6.2 未來展望 57
參考文獻 58
[1]F. Wang, D. F. Kimball, J. D. Popp, A. Yang, D. Lie, P. Asbeck and Larson, "An Improved Power-Added Efficiency 19-dBm Hybrid Envelope Elimination and Restoration Power Amplifier for 802.11g WLAN Applications," in IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 12, pp. 4086-4099, Dec. 2006.
[2]D. Rudolph, "Out-of-band emissions of digital transmissions using Kahn EER technique," in IEEE Transactions on Microwave Theory and Techniques, vol. 50, no. 8, pp. 1979-1983, Aug. 2002.
[3]Y. Wang, "An improved Kahn transmitter architecture based on delta-sigma modulation," in IEEE MTT-S Int. Dig., vol. 3, pp. 1327-1330, Jun. 2003.
[4]M. Taromaru, N. Ando, T. Kodera and K. Yano, "An EER Transmitter Architecture with Burst-Width Envelope Modulation based on Triangle-Wave Comparison PWM," in IEEE 18th International Symposium on Personal, Indoor and Mobile Radio Communications, pp. 1-5, Sep. 2007.
[5]C. Berland et al., "A transmitter architecture for nonconstant envelope modulation," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 53, no. 1, pp. 13-17, Jan. 2006.
[6]M. Nielsen and T. Larsen, "A Transmitter Architecture Based on Delta–Sigma Modulation and Switch-Mode Power Amplification," in IEEE Transactions on Circuits and Systems II: Express Briefs, vol. 54, no. 8, pp. 735-739, Aug. 2007.
[7]J. Chen, H. Yang and Y. E. Chen, "A Multi-Level Pulse Modulated Polar Transmitter Using Digital Pulse-Width Modulation," in IEEE Microwave and Wireless Components Letters, vol. 20, no. 5, pp. 295-297, May 2010.
[8]J. Chen, "An Efficiency-Improved Outphasing Power Amplifier Using RF Pulse Modulation," in IEEE Microwave and Wireless Components Letters, vol. 20, no. 12, pp. 684-686, Dec. 2010.
[9]M. Hassan, L. E. Larson, V. W. Leung and P. M. Asbeck, "A Combined Series-Parallel Hybrid Envelope Amplifier for Envelope Tracking Mobile Terminal RF Power Amplifier Applications," in IEEE Journal of Solid-State Circuits, vol. 47, no. 5, pp. 1185-1198, May 2012.
[10]J. Guan and R. Negra, "A linear supply modulator with high dynamic range for polar transmitters in LTE application,“ in IEEE 2012 Asia Pacific Microwave Conference Proceedings, pp. 394-396, Dec. 2012.
[11]J. S. Walling, S. S. Taylor and D. J. Allstot, "A Class-G Supply Modulator and Class-E PA in 130 nm CMOS," in IEEE Journal of Solid-State Circuits, vol. 44, no. 9, pp. 2339-2347, Sept. 2009.
[12]J. Sebastián, P. Fernández-Miaja, F. J. Ortega-González, M. Patiño and M. Rodríguez, "Design of a Two-Phase Buck Converter With Fourth-Order Output Filter for Envelope Amplifiers of Limited Bandwidth," in IEEE Transactions on Power Electronics, vol. 29, no. 11, pp. 5933-5948, Nov. 2014.
[13]M. Liu, D. Zhang and Z. Zhou, "Linear Regulator Design Considerations of the Serial Linear-Assisted Switching Converter Used as Envelope Amplifier," in IEEE Transactions on Power Electronics, vol. 31, no. 5, pp. 3673-3689, May 2016.
[14]P. M. Cheng, M. Vasić, O. Garcia, J. A. Oliver, P. Alou and J. A. Cobos, "Design of envelope amplifier based on interleaved multiphase buck converter with minimum time control for RF application," in 2011 IEEE Energy Conversion Congress and Exposition, pp. 1279-1283, Sept. 2011.
[15]S. Hietakangas, M. Hietanen and T. Rahkonen, "1.8 W, 19 MHz envelope amplifier for envelope tracking and envelope elimination and restoration," in IEEE 2013 NORCHIP, pp. 1-4, Nov. 2013
[16]P. F. Miaja, M. Rodriguez, A. Rodriguez and J. Sebastian, "A Linear Assisted DC/DC Converter for Envelope Tracking and Envelope Elimination and Restoration Applications," in IEEE Transactions on Power Electronics, vol. 27, no. 7, pp. 3302-3309, July 2012.
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