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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
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dc.contributor.advisor | 陳士元 | |
dc.contributor.author | Tzu-Heng Cheng | en |
dc.contributor.author | 程子恆 | zh_TW |
dc.date.accessioned | 2021-06-15T11:14:01Z | - |
dc.date.available | 2021-08-26 | |
dc.date.copyright | 2016-08-26 | |
dc.date.issued | 2016 | |
dc.date.submitted | 2016-08-21 | |
dc.identifier.citation | [1] J. Butler, and R. Howe, 'Beamforming matrix simplifies design of electronically scanned antennas,' Electronic Design, no. 9, pp. 170–173,Apr. 1961.
[2] C. W. Wang, T. G. Ma, and C. F. Yang, “A new planar artificial transmission line and its applications to a miniaturized butler matrix,” IEEE Trans. Microw. Theory Tech., vol. 55, no. 12, pp. 2792–2801, Dec. 2007. [3] E. Gandini, M. Ettorre, R. Sauleau, and A. Grbic, “A lumped-element unit cell for beam-forming networks and its application to a miniaturized Butler matrix,” IEEE Trans. Microw. Theory Tech., vol. 61, no. 4, pp. 1477–1487, Apr. 2013. [4] Tian, G., Yang, J.-P., Wu, W.: ‘A novel compact butler matrix without phase shifter’, IEEE Microw. Wirel. Compon. Lett., 2014, 24, (5), pp. 306–308. [5] K. Wincza, A. Rydosz, I. Slomian, and S. Gruszczynski, “Reduced sidelobe multibeam antenna array with broadside beam fed by 4×8 Butler Matrix,” IEEE Int. Symp. Antennas and Propag. (ISAP), Nov. 2015. [6] C.-I. Shie, J.-C. Cheng, S.-C. Chou, and Y.-C. Chiang, “Transdirectional coupled-line couplers implemented by periodical shunt capacitors,” IEEE Trans. Microw. Theory Tech., vol. 57, no. 12, pp. 2981–2988, Dec. 2009. [7] H. Liu, S. Fang, Z. Wang, Y. Zhou, “Miniaturization of trans-directional coupled line couplers using series inductors,” in Proc. Progress in Electromagnetics Research C, vol. 46, pp. 171–177, 2014. [8] T. Noro, Y. Kazama, M. Takahashi, and K. Ito, “A study on the mechanism of wideband characteristics for single-fed stacked circularly polarization patch antenna,” in Proc. IEEE Antennas and Propagation Int. Symp., Jun. 2007, pp. 733–736. [9] J. S. Row, “The design of a squarer-ring slot antenna for circular polarization,” IEEE Trans. Antennas Propag., vol. 53, pp. 1967–1972, Jun. 2005. [10] L. Y. Tseng and T. Y. Han, “Microstrip-fed circular slot antenna for circular polarization,” Microwave Opt. Technol. Lett., vol. 50, pp. 1056–1058, Apr. 2008. [11] J.-S. Row and S.-W. Wu, “Circularly-polarized wide slot antenna loaded with a parasitic patch,” IEEE Trans. Antennas Propag., vol. 56, no. 9, pp. 2826–2832, Sep. 2008. [12] Y. J. Hu, W. P. Ding, W. M. Ni, and W. Q. Cao, “Broadband circularly polarized cavity-backed slot antenna array with four linearly polarized disks located in a single circular slot,” IEEE Antennas Wireless Propag. Lett., vol. 11, pp. 496–499, 2012. [13] K. F. Hung and Y. C. Lin, “Novel broadband circularly polarized cavity-backed aperture antenna with traveling wave excitation,” IEEE Trans. Antennas Propag., vol. 58, no. 1, pp. 35–42, Jan. 2010 [14] W. Yang and J. Zhou, “Wideband circularly polarized cavity-backed aperture antenna with a parasitic square patch,” IEEE Anetennas Wireless Propag. Lett., vol. 13, pp. 197–200, Feb. 2014. [15] D. M. Pozar, Microwave Engineering, 3rd ed. Hoboken, NJ: Wiley, 2005, chapter. 8. [16] Kurokawa, K.: ‘Power waves and the scattering matrix’, IEEE Trans. Microw. Theory Tech., 1965, MTT-13, (3), pp. 194–202. [17] Technical Data Sheet, Impinj Monza X-2k Dura Datasheet, 2013. [18] K. V. S. Rao, P. V. Nikitin, and S. F. Lam, “Antenna Design for UHF RFID Tags: A Review and a Practical Application,” IEEE Trans. Antennas Propag., vol. 53, no. 12, pp. 3870-3876, Dec. 2005. [19] A. E. Abdulhadi and R. Abhari, 'Dual printed meander monopole antennas for passive UHF RFID tags,' in Antennas and Propagation (APSURSI), 2011 IEEE International Symposium on, 2011, pp. 988-991. [20] A.E. Abdulhadi, R. Abhari, “Passive UHF RFID printed monopole tag antenna for identification of metallic objects,” in Proc. IEEE AP-S/URSI Int. Symp., 8-14 July 2012. [21] K.H. Lee and Y.C. Chung, “High gain Yagi-Uda UHF RFID tag antennas,” IEEE AP-S International Symposium, pp.1753-1756, Jun. 2007. [22] K.H. Lee and Y.C. Chung, “Long Range Yagi-Uda UHF RFID Tag Antennas with Very Small Back-lobe,” IEEE AP-S International Symposium, Singapore, Nov. 1~4, 2006 [23] Qian, Y., W. R. Deal, N. Kaneda, and T. Itoh, 'Microstrip- fed quasi-Yagi antenna with broadband characteristics,' Electron. Lett., Vol. 34, No. 23, 2194-2196, 1998. [24] Ma, T. G., C. W. Wang, R. C. Hua, and J. W. Tsai, “A modified Quasi-Yagi antenna with a new compact microstrip-to-coplanar strip transition using artificial transmission lines,” IEEE Trans. Antennas Propag., Vol. 57, No. 8, 2469–2474, 2009. [25] H. Wang, P. Li, T. Wu, and X. Wei Shi, “A compact wideband planar microstrip-fed quasi-yagi antenna with a C-shaped reflector,” in Microwave Opt. Tech. Lett., vol. 56 (2014), pp.241-244. [26] J.P. Chen, P. Hsu, “A compact strip dipole coupled split-ring resonator antenna for RFID tags,” IEEE Trans. Antennas Propag., vol. 61, no. 12, pp. 5372–5376, Nov. 2013. [27] D. De Donno, L. Catarinucci, and L. Tarricone, “RAMSES: RFID augmented module for smart environmental sensing,” IEEE Trans. Instrum. Meas., vol. 63, no. 7, pp. 1701–1708, Jul. 2014. [28] Technical Data Sheet, Texas Instrument, Troubleshooting I2C-busprotocol, Oct., 2009. [29] Technical Data Sheet, NXP Semiconductors, UM10204 I2C-bus specification and user manual, rev. 6-4, Apr., 2014. [30] Technical Data Sheet, Alien Technology, ALR-9680 Hardware setup guide, Feb. 2013. [31] Technical Data Sheet, Monza X Antenna Design Note, rev. 3.0, Dec. 9, 2014. [32] S. K. Kuo, S. L. Chen, and C. T. Lin, “An accurate method for impedance measurement of RFID tag antenna,” Progr. Electromagn. Res., vol. 83, pp. 93–106, 2008. [33] Technical Data Sheet, Impinj Monza X-2K Dura datasheet, rev. 1.51, Mar. 24, 2014 [34] Technical Data Sheet, SILICON LABS Si7021-A10 I2C humidity and temperature sensor datasheet. [35] Technical Data Sheet, TAOS TSL4531 digital ambient light sensor datasheet. | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/49027 | - |
dc.description.abstract | 在本論文中,吾人建構了用於收集溫室環境資訊之無線感測系統。所開發之硬體主要包含無線感測模組以及應用於讀取器之波束可切換之圓極化天線陣列兩大部分。
感測器模組主要採用德州儀器公司提供之MSP430G2553微控制器、Impinj Monza X-2k RFID雙介面晶片、Silicon Lab Si-7021溫濕度感測器、TAOS TSL-45315照度感測器, 以及自製之RFID標籤天線。微控制器控制所有感測電路模組的運作流程,包含感測、寫入及無線讀取。吾人所採用的感測器皆支援用於此類單一電路板內之短程訊息傳遞之I2C介面,並藉由I2C介面接收微控制器之指令,量測環境資訊,接著微控制器可將之寫入RFID晶片之記憶體內。利用RFID之Class 1 Gen 2無線介面,讀取器可在RFID晶片之記憶體未被I2C介面存取之任意時間點讀取前一次所測得之環境資訊。吾人亦提出兩款RFID標籤天線,其特色分別為微小化及高增益。兩款天線皆與感測模組電路整合,其特性亦透過量測結果和模擬結果之比較驗證。 讀取器之波束可切換天線陣列可細分為天線陣列本體及饋入網路兩部分。天線陣列部分。吾人採用L型殘段結構饋入正方形槽孔天線來產生圓極化輻射,配合金屬共振腔之包覆將波束集中在單一方向,並降低相鄰天線單元間之耦合。陣列尺寸受限於操作頻率與實驗室製作限制,本論文中僅實現一維陣列。其效能可達10 dBi以上之圓極化增益。饋入網路部分則由微帶線架構實現之十字形接面與兩個反射式相移器所組成。藉由調整十字形接面各分支線之特徵阻抗,輸出端之震幅大小可任意設計以改善陣列場型之旁波瓣位準。其中,反射式相移器由週期性附載之耦合線方向耦合器及二位元數位可調之負載電路所組成。德州儀器之MSP430G2553微控制器亦用於控制該饋入電路,使天線陣列之主波束能在四個選定方向間自動依序切換,以讀取不同方位之感測器模組之感測資料。 | zh_TW |
dc.description.abstract | In this thesis, a novel wireless environmental sensor system for use in advanced greenhouses is presented. The major contribution of this thesis includes the development of RFID sensor tags and the switched-beam circularly polarized (CP) antenna array as the reader antenna, both of which operate in the 902-928 MHz band.
The sensor tag module consists of a Texas Instrument MSP430G2553 microcontroller (MCU), Impinj Monza X-2k RFID tag chip with dual interfaces, Silicon Lab Si-7021 integrated temperature and relative humidity sensor, TAOS TSL-45315 light sensor, and RFID tag antenna designed by ourselves. The MCU manages the whole operation procedure, including sensing, data writing, and wireless reading. All the devices in the sensor tag module are compatible with the I2C interface, commonly used in short range communication on PCB board. All the sensors can receive and follow the commands from MCU via I2C interface to measure the environmental information and then send back the data to MCU for it to write the sensing data into the nonvolatile memory (NVM) of the RFID tag chip. Through the RFID Class 1 Gen 2 air interface, RFID reader can wirelessly access the data stored in the tag chip whenever the NVM is not accessed by MCU via I2C interface. Besides, we also proposed two types of RFID tag antennas, one with a compact size and the other having a higher gain. These two antennas are integrated respectively with the sensor tag module, and their performances are verified by comparing the simulated and measured results. The proposed switched-beam CP cavity-backed slot antenna array for use as the RFID reader antenna consists of two parts: the array of radiators and its feeding network. The element radiator is a square slot backed by a metallic cavity and fed by an L-shaped strip to obtain uni-directional CP radiation and lower mutual coupling between adjacent elements. In this thesis, an one dimensional array is implemented considering the limitations imposed by our in-house fabrication process and the operating frequency of the system. The peak gain achieved is about 10 dBi. Our proposed feeding network consists of a microstrip cross junction and two reflection-type phase shifters (RTPSs). By properly choosing the characteristic impedances of the four branches of the cross junction, arbitrary current distribution at the three outputs branches can be obtained to feed into the array elements. The side-lobe level (SLL) of the switched-beam antenna array can readily be improved by implementing a tapered current distribution. The novel RTPS consists of a periodically loaded coupled-line coupler and two identical 2-bit switchable termination circuits, which is also controlled by the TI MSP430G2553 MCU. The RTPS is the key for the automatic sequential beam switching of the array between four predetermined directions. | en |
dc.description.provenance | Made available in DSpace on 2021-06-15T11:14:01Z (GMT). No. of bitstreams: 1 ntu-105-R03942013-1.pdf: 4982541 bytes, checksum: ff7afbce3fc2c2a021c3125cc289a315 (MD5) Previous issue date: 2016 | en |
dc.description.tableofcontents | 口試委員會審定書 #
致謝 ii 中文摘要 iii ABSTRACT iv CONTENTS vi LIST OF FIGURES ix LIST OF TABLES xv Chapter 1 Introduction 1 1.1 Motivation 1 1.2 Preliminary Project Appraisal 2 1.3 Contribution 6 1.4 Chapter Outline 7 Chapter 2 Switched-Beam Circularly Polarized Antenna Array Based on Cavity-Backed Square Slot Antenna Element 9 2.1 Introduction 9 2.2 Design and Analysis of Building Block Circuits 12 2.2.1 Trans-directional Coupler 12 2.2.2 Periodically Loaded Coupled Lines 14 2.2.3 Reflection-Type Phase Shifter (RTPS) 17 2.2.4 Microstrip Cross Junction 19 2.3 Cavity-Backed Circularly Polarized Square Slot Antenna Element 20 2.4 Design of 2-Bit Reconfigurable Feeding Circuit 25 2.4.1 Principle of Switched-Beam Linear Array 25 2.4.2 2-bit Reflection-Type Phase Shifter 29 2.4.3 Microstrip Cross Junction 42 2.4.4 2-bit Reconfigurable Feeding Circuit 44 2.5 Switched-Beam Circularly Polarized Linear Array 48 Chapter 3 Wireless Environmental Sensor Tag Module 63 3.1 Introduction 63 3.2 Design of Proposed Sensor Tag Antennas 65 3.2.1 High-Gain Design 65 3.2.2 Miniaturized Design 66 3.3 Simulated and Measured Results of The Proposed Sensor Tag Antennas 67 3.3.1 Input Impedance Responses 67 3.3.2 Radiation Patterns 71 3.4 Discussions on Measurement Errors 76 3.4.1 Error in Radiation Pattern of High-Gain Sensor Tag Antenna 76 3.4.2 Error in Radiation Pattern of Miniaturized Sensor Tag Antenna 78 3.5 Operation of Wireless Sensor Tag Module 81 3.5.1 Brief Introduction on I2C Protocol 81 3.5.2 Wireless Sensor Tag Module 82 3.5.3 Operation Procedures 85 Chapter 4 System Testing 88 4.1 Maximum Read-Range Measurement 88 4.2 Sensing Function Test 92 4.3 Switched-Beam Reading Test 93 4.4 Sensor Tag Module Power Consumption 95 Chapter 5 Conclusion and Future Work 97 5.1 Conclusion 97 5.2 Future Work 98 REFERENCE 99 Appendix A. Ferrite-Loaded Coaxial Cable 103 Appendix B. Modified Miniaturized Tag Design and Measured Results of Maximum Read Range 104 | |
dc.language.iso | en | |
dc.title | 應用於先進溫室之無線環境感測系統 | zh_TW |
dc.title | Wireless Environmental Sensor System for Advanced Greenhouse Application | en |
dc.type | Thesis | |
dc.date.schoolyear | 104-2 | |
dc.description.degree | 碩士 | |
dc.contributor.oralexamcommittee | 許博文,張道治,鄭瑞清,李志杰 | |
dc.subject.keyword | 金屬共振腔槽孔天線,圓極化,反射式相移器,波束可切換之天線陣列,無線感測網路, | zh_TW |
dc.subject.keyword | cavity-backed aperture antennas,circular polarization,reflection-type phase shifters,switched-beam antenna arrays,wireless sensor network, | en |
dc.relation.page | 108 | |
dc.identifier.doi | 10.6342/NTU201603250 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2016-08-21 | |
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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