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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 黃天偉 | |
| dc.contributor.author | Wei-Lun Chang | en |
| dc.contributor.author | 張維倫 | zh_TW |
| dc.date.accessioned | 2021-06-13T01:12:51Z | - |
| dc.date.available | 2008-07-26 | |
| dc.date.copyright | 2007-07-26 | |
| dc.date.issued | 2007 | |
| dc.date.submitted | 2007-07-20 | |
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[29]Shoji Otaka, Takafumi Yamaji, Ryuichi Fujimoto, Chikau Takahashi and Hiroshi Tanimoto, “A low local input 1.9GHz Si-bipolar quadrature modulator with no adjustment,” IEEE Journal of Solid-State Circuits, vol. 31, no. 1, pp. 30-37, January 1996. [30]H. Y. Chang, T. W. Huang, H. Wang, Y. C. Wang, P. C. Chao, C. H. Chen, “Broad-Band HBT BPSK and IQ Modulator MMICs and Millimeter-Wave Vector Signal Characterization,” IEEE Transactions on Microwave Theory and Techniques, vol. 52, no. 3, pp. 908-919, March 2004. [31] H. Y. Chang, P. S. Wu, T. W. Huang, H. Wang, C. L. Chang, G. J. Chern, “Design and Analysis of CMOS Broad-Band Compact High-Linearity Modulators for Gigabit Microwave/Millimeter-Wave Applications,” IEEE Transactions on Microwave Theory and Techniques, vol. 54, no. 1, pp. 20-30, January 2006. [32]Behzad Razavi, RF Microelectronics, Prentice Hall, 1998 [33]David M. Pozar, Microwave Engineering, Third Edition, Wiley, 2005. [34]Stephen A. Mass, Microwave Mixers, Second Edition, Artech House, 1993. [35]P. S. Wu, C. H. Wang, T. W. Huang, H. Wang, “Compact and Broad-Band Millimeter-Wave Monolithic Transformer Balanced Mixers,” IEEE Transactions on Microwave Theory and Techniques, vol. 53, no. 10, pp. 3106-3114, Oct. 2005. [36]Hong-Yeh Chang, “毫米波反射式調變器之研究及其應用 Research on Millimeter-wave Reflection-type Modulators and Their Applications” 國立台灣大學電信工程研究所博士論文, 民國九十三年六月. [37]Jeng-Han Tsai, “毫米波發射器線性化及十億位元無線通信系統 Millimeter-wave Transmitter Linearization and Gigabit Wireless Communication Systems” 國立台灣大學電信工程研究所博士論文, 民國九十六年一月. | |
| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/29631 | - |
| dc.description.abstract | 近年來隨著無線通訊產業的蓬勃發展，微波頻帶已經趨近於飽和，為了追求更寬的頻譜來達到更快傳輸速率及高資料容量的傳輸，寬頻的毫米波頻段提供了解決此問題的途徑，毫米波無線通訊系統提供了相對於微波通訊系統寬頻的優點，且為了更有效的使用頻譜，各種不同且複雜的數位調變方式及方法被發表出來，越複雜的調變方式其所需的線性度越高，且需要更多不同的相位訊號來完成調變的過程，因此高線性度及四相位的調變及解調器將是此篇論文的研究重點，為了達到高整合性，高效能，及低成本的電路設計，我門利用互補式金氧半導體(CMOS)製程來完成此電路設計，因此一小面積的直接降頻(Direct down-conversion)及直接升頻(direct up-conversion)電路將在文中介紹。
近來毫米波十億位元(Gigabit)無線通訊系統是很熱門的一個話題，為了達成此傳輸速率，除了毫米波頻譜的利用是必須的之外，基頻頻譜的頻寬也扮演了很重要的角色，已發表的許多研究中，基頻頻寬(調變頻寬)多受限於1GHz以下，少數能達到1~3GHz，但相對於毫米波頻段所開放的頻帶，似乎較窄頻且有些浪費，因此提高基頻頻寬至6~7GHz，甚至10GHz以上也將於文中描述，因此基頻頻譜的頻寬也將可以大大的改善，不僅十億位元(Gigabit)的資料傳輸速率可以達到，甚至連百億位元(10Gigabit)的資料傳輸速率都有機會達成，將可解決將來對無線通訊系統速率的需求。 | zh_TW |
| dc.description.abstract | In the last new years , as the demands of wireless communication system grows rapidly , the bands of microwave frequency had been saturated with various communication applications . To achieve wider spectrum for high-speed and high-capacity transmission , bands of millimeter-wave frequency are the solution of this problem . The advantage of MMW wireless communication systems is wider bandwidth comparing with microwave communication systems . To utilize the spectrum efficiently , many methods of complexly digital modulation is proposed . The more complex modulation , the higher linearity is required , and more various phase of signals are required to accomplish process of modulation . Therefore high-linearity and quadrature-phase modulator and demodulator are the emphasis of this thesis . For high level of integration , high performance and low cost , this chip is fabricated by the complementary oxide semi-conductor(CMOS) 0.13um process . A compact size of direct down-conversion and direct up conversion circuits will be presented in this thesis .
Gigabit wireless communication system is a popular topic recently . Except the use of millimeter-wave spectrums , base-band bandwidth is also an important role for high-speed transmission . In many proposed papers , the base-band bandwidth is limited below 1GHz , but there are still some papers which demonstrates the base-band bandwidth of 1 to 3 GHz . It seems narrower than the unlicensed millimeter-wave bands . The method of extending base-band bandwidth to 6-7GHz or even higher than 10GHz will be demonstrated in this thesis . Therefore the bandwidth of base-band spectrum is improved . Not only data rate of gigabit per second , but also data rate of 10 gigabit per second will be achieved . It is a solution for speed of wireless communication systems . | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T01:12:51Z (GMT). No. of bitstreams: 1 ntu-96-R94942076-1.pdf: 2803529 bytes, checksum: 3b7d1b02d6c238ec02ff7f66b76e60ba (MD5) Previous issue date: 2007 | en |
| dc.description.tableofcontents | Contents
Abstract Chapter 1 Introduction 1 1.1 Motivation 1 1.2 Literature Survey 3 1.3 Contributions 4 1.4 Thesis Organization 5 Chapter 2 Principles of IQ Modulators 7 2.1 Modulation Technology 8 2.1.1 Analog Modulation 8 2.1.2 Digital Modulation 9 2.2 Principle of IQ Modem 12 2.3 Choice of Passive Element 15 2.3.1 Power Divider 15 2.3.2 90o hybrid 17 2.3.3 180o hybrid 19 2.4 Summary 20 Chapter 3 Modem for Gigabits Communication 23 3.1 Receiver Architecture 24 3.1.1 Heterodyne Receivers 24 3.1.2 Homodyne Receivers 28 3.2 BPSK Mixer 32 3.2.1 Choice of Mixer Topology 32 3.2.2 Simulation Result of Single Mixer Core 34 3.3 IQ Demodulator 40 3.4 Experimental Results 45 3.4.1 MMW Sub-harmonic IQ Modulator 45 3.4.2 MMW Sub-harmonic IQ Demodulator 52 3.5 Summary 57 Chapter 4 Baseband Bandwidth Analysis 61 4.1 Baseband Bandwidth Research 62 4.1.1 Resistive Mixer 62 4.1.2 Anti-parallel Diode Mixer 63 4.1.3 Circuit Design and Simulation Results 66 4.1.4 The Limitation of Base-band Bandwidth 69 4.2 Improvement of Bandwidth 74 4.2.1 The Method of Extending Base-band Bandwidth 74 4.2.2 Mixer for Gigabits Communication 76 4.3 Summary 82 Chapter 5 Conclusion 85 Reference 87 | |
| dc.language.iso | en | |
| dc.subject | 調變器 | zh_TW |
| dc.subject | 基頻頻寬 | zh_TW |
| dc.subject | 混頻器 | zh_TW |
| dc.subject | 解調器 | zh_TW |
| dc.subject | modulator | en |
| dc.subject | demodulator | en |
| dc.subject | base-band bandwidth | en |
| dc.subject | mixer | en |
| dc.title | 直接降頻可雙向工作的調變器及解調器之設計及基頻頻寬之研究 | zh_TW |
| dc.title | Design of the Bi-direction Modulator and Demodulator with Direct-conversion Architecture and Base-band Bandwidth Analysis | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 95-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 張鴻埜,蔡政翰 | |
| dc.subject.keyword | 調變器,解調器,混頻器,基頻頻寬, | zh_TW |
| dc.subject.keyword | modulator,demodulator,mixer,base-band bandwidth, | en |
| dc.relation.page | 90 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2007-07-20 | |
| dc.contributor.author-college | 電機資訊學院 | zh_TW |
| dc.contributor.author-dept | 電信工程學研究所 | zh_TW |
| 顯示於系所單位： | 電信工程學研究所 | |
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