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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 陳昭宏(Jau-Horng Chen) | |
| dc.contributor.author | Tzu-Han Wang | en |
| dc.contributor.author | 王子函 | zh_TW |
| dc.date.accessioned | 2021-06-17T02:11:45Z | - |
| dc.date.available | 2022-01-27 | |
| dc.date.copyright | 2018-01-27 | |
| dc.date.issued | 2017 | |
| dc.date.submitted | 2018-01-05 | |
| dc.identifier.citation | [1] T. Rapaport, Wireless Communication, Prentice Hall, 1996
[2] F. H. Raab, P. Asbeck, S. Cripps, P. B. Kenington, Z. B. Popovic, N. Pothecary, J. F. Sevic, N. O. Sokal, 'Power amplifiers and transmitters for RF and microwave', IEEE Trans. Microw. Theory Tech., vol. 50, no. 3, pp. 814-826, Mar. 2002 [3] R. Langridge, T. Thornton, P. M. Asbeck and L. E. Larson, 'A power re-use technique for improved efficiency of outphasing microwave power amplifiers,' in IEEE Trans. Microw. Theory Tech., vol. 47, no. 8, pp. 1467-1470, Aug 1999. [4] X. Zhang, L. Larson, P. Asbeck, R. Langridge, “Analysis of power recycling techniques for rf and microwave outphasing power amplifiers”, IEEE Trans. Circuits Syst. II: Ana and Digi Sig Processing, vol. 49, no. 5, pp. 312-320, 2002 [5] P. A. Godoy, D. J. Perreault and J. L. Dawson, 'Outphasing Energy Recovery Amplifier With Resistance Compression for Improved Efficiency,' in IEEE Trans. Microw. Theory Tech., vol. 57, no. 12, pp. 2895-2906, Dec. 2009. [6] P. A. Godoy, D. J. Perreault, and J. L. Dawson, “Outphasing energy recovery amplifier with resistance compression for improved efficiency,” IEEE MTT-S Int. Microw. Symp. Dig., June 2012. [7] Y. Wang, “An improved Kahn transmitter architecture based on delta–sigma modulation,” in Proc. IEEE MTT-S Int. Microw. Symp. Dig., Jun. 2003, vol. 3, pp. 1327–1330. [8] 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 Proc. IEEE Int. Symp. PIMRC, Sep. 2007, pp. 1–5. [9] C. Berland, I. Hibon, J. F. Bercher,M. Villegas, D. Belot, D. Pache, and V. Le Goascoz, “A transmitter architecture for nonconstant envelope modulation,” IEEE Trans. Circuits Syst. II, Exp. Briefs, vol. 53, no. 1, pp. 13–17, Jan. 2006. [10] M. Nielsen and T. Larsen, “A transmitter architecture based on delta–sigma modulation and switch-mode power amplification,” IEEE Trans. Circuits Syst. II, Exp. Briefs, vol. 54, no. 8, pp. 735–739, Aug. 2007. [11] J. H. Chen, H. S. Yang, and Y. J. E. Chen, 'A Multi-Level Pulse Modulated Polar Transmitter Using Digital Pulse-Width Modulation,' IEEE Microw. Wireless Comp. Lett., vol. 20, no. 5, pp. 295-297, 2010. [12] J.-H. Chen, H.-S. Yang, H.-C. Lin, Y.-J. E. Chen, 'A polar-transmitter architecture using multiphase pulse width modulation', IEEE Trans. Circuits Syst., vol. 58, pp. 244-252, Feb. 2011. [13] T. H. Wang and J. H. Chen, 'Power recycling using Wilkinson power combiner with pulsewidth modulation,' in 2017 IEEE MTT-S Int. Microw. Symp. RFIT. (RFIT), 2017, pp. 223-225. [14] Holmes, D.G., Lipo, T.A, Pulse Width Modulation for Power Converters—Principles and Practice, 1st ed. Wiley & Sons [15] F. H. Raab, “Radio frequency pulse width modulation,” IEEE Trans. Commun., vol., no., pp. 958-966, Aug. 1973 [16] S.W. Smith, The Complex Fourier Transform: The Scientist and Engineer's Guide to Digital Signal Processing, California Technical Publishing, 1997-2007, pp. 567-580 [17] R. L. Kirlin, M. M. Bech and A. M. Trzynadlowski, 'Analysis of power and power spectral density in PWM inverters with randomized switching frequency,' in IEEE Trans. Industrial Electronics, vol. 49, no. 2, pp. 486-499, Apr 2002. [18] M. M. Bech, J. K. Pedersen, F. Blaabjerg, and A. M. Trzynadlowski, “A methodology for true comparison of analytical and measured frequency domain spectra in random PWM converters,” IEEE Trans. Power Electronics, vol. 14, pp. 578-586, May 1999. [19] H. S. Yang, C. W. Chang, and J. H. Chen, 'A Highly Efficient LTE Pulse-Modulated Polar Transmitter Using Wideband Power Recycling,' IEEE Trans. Microw. Theory Tech., vol. 63, no. 12, pp. 4437-4443, 2015. [20] D.M. Pozar, Microwave Engineering, John Wiley & Sons, 1998 [21] R. Ludwing and P. Bretchko, RF Circuit Design, Prentice Hall, 2000 [22] Q.-W. Lin and X.-Y. Zhang, “Differential rectifier using resistance compression network for improving efficiency over extended input power range,” IEEE Trans. Microw. Theory Techn., vol. 64, no. 9, pp. 2943-2954, Sep. 2016 [23] M. D. Wei, Y. T. Chang, D. Wang, C. H. Tseng and R. Negra, “Balanced RF Rectifier for Energy Recovery With Minimized Input Impedance Variation,” IEEE Trans. Microw. Theory Techn., vol. 65, no. 5, pp. 1598-1604, 2017. [24] C. W. Chang, Y. J. Emery Chen and J. H. Chen, 'A Power-Recycling Technique for Improving Power Amplifier Efficiency Under Load Mismatch,' in IEEE Microw. Wireless Comp. Lett., vol. 21, no. 10, pp. 571-573, Oct. 2011. [25] “HSMS-286x Surface Mount Microwave Schottky diodes,” Avago Technologies, San Jose, CA, Datasheet, 2009. [26] “Schottky diode voltage doubler,” Application note 956-4, Agilent Inc. [27] W. Bakalski, W. Simburger, H. Knapp, H. D. Wohlmuth and A. L. Scholtz, 'Lumped and distributed lattice-type LC-baluns,' 2002 IEEE MTT-S Int.Microw. Symp. (Cat. No.02CH37278), Seattle, WA, USA, 2002, pp. 209-212 vol.1. [28] “ATF-511P8 High Linearity Enhancement Mode Pseudomorphic HEMT,” Avago Technologies, San Jose, CA, Datasheet, 2009. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/68047 | - |
| dc.description.abstract | 本論文的主旨是提出一個具有提升功率放大器之效率的改良式威金森功率結合器。將兩路兩相的功率放大器組織成雙相位脈衝調變極化發射機並利用改良式威金森功率結合器對輸出進行整合，藉此有脈衝產生的頻帶外諧波項次可以被抑制。再者，改良式威金森功率結合器具有可以回收損失在雙相位脈衝調變極化發射機上的發散功率。利用這個被提出的架構，在使用中心頻率為836.5-MHz 與10-MHz 脈衝調變信號的情況下，整體發射機系統的效率達到43%同時系統的輸出功率為24.2 dBm 。在使用中心頻率為836.5-MHz 與脈衝調變LTE手機信號的情況下，整體發射機系統的效率達到41.2%同時系統的輸出功率為23.5 dBm 。本論文主要於驗證改良式威金森功率結合器對功率放大器的回收效能。 | zh_TW |
| dc.description.abstract | This dissertation presents a method for improving the efficiency of a power amplifier (PA) using a modified Wilkinson power combiner (WPC). By configuring the PA into a dual-phase pulse modulated polar transmitter (PMPT) and combing with a modified Wilkinson power combiner, the out-of-band harmonics created by the pulses can be reduced. Moreover, the modified Wilkinson power combiner recycles the power when the input signals of the dual-phase PMPT are not turned on concurrently. Using the proposed architecture, the prototype system transmitter system achieved a 43% drain efficiency at an output channel power of 24.2 dBm using a 10-MHz dual-phase pulsewidth modulation (PWM) signal with carrier frequency at 836.5 MHz. Using a 10-MHz bandwidth long-term evolution (LTE) PWM signal at 836.5 MHz the system achieved a drain efficiency of 41.2% with a channel output power of 23.5dBm while passing the spectral requirements of the LTE standard for mobile handset devices. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-17T02:11:45Z (GMT). No. of bitstreams: 1 ntu-106-R05525032-1.pdf: 1471699 bytes, checksum: cafbbd7ed0f59ab96ad3f6f489e01961 (MD5) Previous issue date: 2017 | en |
| dc.description.tableofcontents | ACKNOWLEDGEMENT i
中文摘要 ii ABSTRACT iii CONTENTS iv LIST OF FIGURES vi LIST OF TABLES ix Chapter 1 Introduction 1 1.1 Motivation 1 1.2 Objectives and Reviews of power recycling techniques 2 1.2.1 Objectives 2 1.2.2 Reviews of Power recycling techniques in PAs 2 1.3 Outlines 5 Chapter 2 Theory of PMPT with RF-PWM Signal 7 2.1 Pulse modulated polar transmitters 7 2.2 Spectrum analysis of pulsewidth modulated signal 9 2.2.1 The spectral analysis of random duty cycle PWM signal (RPWM) 11 Chapter 3 Design of the Power Recycling Circuit 15 3.1 Polar transmitter efficiency enhancement 15 3.2 Wilkinson power combiner 17 3.2.1 Common three ports power combiner architecture 17 3.2.2 Characteristics of 3-dBWilkinson power combiner 19 3.2.3 The design of lumped Wilkinson power combiner 21 3.3 Power recycling network 23 3.3.1 The nonlinear model of Schottky barrier diode 24 3.3.2 The design of RF-dc rectifier 25 3.3.3 Balun transformer 27 Chapter 4 Implementation of PMPT with Recycling 31 4.1 Implementing Modified Wilkinson power combiner 31 4.1.1 The simulation and measurement of the Wilkinson combiner 31 4.2 Implementation of PMPT with power recycling techniques 37 4.2.1 The simulation and measurement of power recycling network 40 4.2.2 The simulation and measurement of the overall system 43 Chapter 5 Conclusions and Future Works 46 5.1 Conclusions 46 5.2 Future works 46 REFERENCE 49 CONFERENCE PRESENT 53 | |
| dc.language.iso | en | |
| dc.subject | 脈衝調變信號 | zh_TW |
| dc.subject | 極化發射機 | zh_TW |
| dc.subject | 功率放大器 | zh_TW |
| dc.subject | 威爾金森功率結合器 | zh_TW |
| dc.subject | 射頻直流整流器 | zh_TW |
| dc.subject | Polar transmitter | en |
| dc.subject | Pulse modulated signal | en |
| dc.subject | RF-dc rectifier | en |
| dc.subject | Wilkinson power combiner | en |
| dc.subject | Power amplifier | en |
| dc.title | 利用改良式威爾金森功率結合器提升脈衝調變極化發射機之效率 | zh_TW |
| dc.title | An Efficiency Enhanced Pulse Modulated Polar Transmitter Using a Modified Wilkinson Power Combiner | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 106-1 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 陳怡然(Yi-Jan Chen),李佳翰(Jia-Han Lee) | |
| dc.subject.keyword | 極化發射機,功率放大器,威爾金森功率結合器,射頻直流整流器,脈衝調變信號, | zh_TW |
| dc.subject.keyword | Polar transmitter,Power amplifier,Wilkinson power combiner,RF-dc rectifier,Pulse modulated signal, | en |
| dc.relation.page | 53 | |
| dc.identifier.doi | 10.6342/NTU201800020 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2018-01-08 | |
| dc.contributor.author-college | 工學院 | zh_TW |
| dc.contributor.author-dept | 工程科學及海洋工程學研究所 | zh_TW |
| 顯示於系所單位： | 工程科學及海洋工程學系 | |
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|---|---|---|---|
| ntu-106-1.pdf 未授權公開取用 | 1.44 MB | Adobe PDF |
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