應用左手傳輸線於串聯式天線陣列之可行性探討

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姓名

廖元維(Liao Yuan Wei) 查詢紙本館藏

畢業系所

電機工程學系

論文名稱

應用左手傳輸線於串聯式天線陣列之可行性探討
(Feasibility Study of Using Left-Handed Transmission Line on Series Antenna Array)

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至系統瀏覽論文 ( 永不開放)

摘要(中)

本論文在於串連式天線陣列與左手傳輸線的設計與探討。在天線陣列的部份，我們在各天線單元的饋入點前加上四分之一波長阻抗轉換器，使其S11¬達到單一共振模態。我們也改變饋入線的形狀，使其在各天線單元間有360的相位差。在天線陣列遠場的部份，我們發現這樣的天線陣列會有增益飽和的現象，也發現這樣的天線陣列的主波束還會因頻率的改變而變形。
為了解決輻射場型變形的問題，我們利用文獻[9]的原理的相位響應斜率小之特性設計左手傳輸線。本論文是利用Layout的方式來設計左手傳輸線，但是在設計的過程中我們遇到一些問題。這些問題主要有三個：介入損耗過大，左手傳輸線的物理長度不夠與左手傳輸線的電氣長度與天線陣列所要的規格有落差。針對這些問題，我們使用模擬軟體來做分析並探討其實作的可行性。本論文所使用的全波模擬軟體為HFSS，電路模擬軟體為ADS。

摘要(英)

The design of series antenna array with left-handed transmission line (LH TL) are discussed in the thesis. In the section regarding the antenna array, we add a quarter-wavelength impedance transformer at the feed point of each antenna element to obtain a single resonant mode. We also change the shape of the feed line so that it has a phase difference of 360 between the antenna elements. For the far field of the antenna array, we find that such an antenna array will have a gain saturation phenomenon. Also, the main beam of antenna array will be deformed due to changes in frequency.
In order to solve the problem of deformation of radiated field, we use the theory of LH TL to design transmission lines, and some problems in the processing of design are encountered. There are mainly three problems: too much insertion loss, the insufficient physical length of the LH TL, and the unfit electrical length of LH TL for the specifications of series antenna array. To understand these problems, we use simulation software to do the analysis and investigate the feasibility of its implementation. The full-wave simulation software used in the thesis is HFSS, and the circuit simulation software is ADS.

關鍵字(中)

★ 左手傳輸線
★ 天線陣列

關鍵字(英)

論文目次

目錄
摘要 I
Abstract II
致謝 III
目錄 IV
圖目錄 VI
表目錄 X
第一章序論 1
1.1 前言 1
1.2 研究動機與目的 2
1.3 文獻回顧 3
1.4 章節概要 5
第二章理論 6
2.1天線陣列 6
2.1.1陣列天線遠場推導 6
2.1.2陣列因數 (Array Factor)場型 8
2.1.3一維天線陣列 9
2.2複合式右手左手傳輸線架構 10
2.2.1前言 10
2.2.2左手系物質 11
2.2.3複合式右手左手傳輸線原理 12
2.2.4平衡與非平衡共振 15
第三章架構設計 17
3.1 前言 17
3.2 槽孔天線原理與設計 17
3.3 天線陣列設計 18
3.3.1 兩個天線單元 18
3.3.2 多個天線單元 23
3.3.3 天線陣列之增益的飽和 28
3.3.4 輻射場型的變形 33
3.4 饋入走線的設計 40
3.4.1 前言 40
3.4.2 左手傳輸線 40
3.4.3 介入損耗過大 43
3.4.4 叉指式電容的物理長度不足 50
3.4.5 電氣長度不合天線陣列的要求 58
3.4.6 加上左手傳輸線 59
3.4.7 問題總結 65
第四章量測數據 66
4.1 前言 66
4.2 三個天線單元天線陣列 66
4.3 四個天線單元天線陣列 71
4.4 饋入線相位差修正之三個天線單元天線陣列 76
4.5 左手傳輸線 81
4.6 加上左手傳輸線的天線陣列 83
第五章總結 87
參考文獻 89

參考文獻

參考文獻
[1] X. P. Chen, K. Wu, L. Han and F. He, "Low-Cost High Gain Planar Antenna Array for 60-GHz Band Applications," in IEEE Transactions on Antennas and Propagation, vol. 58, no. 6, pp. 2126-2129, June 2010.
[2] D. y. Kim, W. S. Chung, C. H. Park, S. J. Lee and S. Nam, "A Series Slot Array Antenna for -Inclined Linear Polarization With SIW Technology," in IEEE Transactions on Antennas and Propagation, vol. 60, no. 4, pp. 1785-1795, April 2012.
[3] T. Yuan, N. Yuan and L. W. Li, "A Novel Series-Fed Taper Antenna Array Design," in IEEE Antennas and Wireless Propagation Letters, vol. 7, no. , pp. 362-365, 2008.
[4] Tao Yuan, Jian-Ying Li, Le-Wei Li, Lei Zhang and Mook Seng Leong, "A novel series-fed taper antenna array design and analysis," 2005 Asia-Pacific Microwave Conference Proceedings, 2005, pp. 3 pp.-.
[5] C. Caloz, A. Sanada, L. Liu and T. Itoh, "A broadband left-handed (LH) coupled-line backward coupler with arbitrary coupling level," IEEE MTT-S International Microwave Symposium Digest, 2003, Philadelphia, PA, USA, 2003, pp. 317-320 vol.1.
[6] C. Caloz and T. Itoh, "Novel microwave devices and structures based on the transmission line approach of meta-materials," IEEE MTT-S International Microwave Symposium Digest, 2003, Philadelphia, PA, USA, 2003, pp. 195-198 vol.1.
[7] I-Hsiang Lin, C. Caloz and T. Itoh, "A branch-line coupler with two arbitrary operating frequencies using left-handed transmission lines," IEEE MTT-S International Microwave Symposium Digest, 2003, Philadelphia, PA, USA, 2003, pp. 325-328 vol.1.
[8] H. Okabe, C. Caloz and T. Itoh, "A compact enhanced-bandwidth hybrid ring using an artificial lumped-element left-handed transmission-line section," in IEEE Transactions on Microwave Theory and Techniques, vol. 52, no. 3, pp. 798-804, March 2004.
[9] C. Caloz and T. Itoh, "Transmission line approach of left-handed (LH) materials and microstrip implementation of an artificial LH transmission line," in IEEE Transactions on Antennas and Propagation, vol. 52, no. 5, pp. 1159-1166, May 2004.
[10] C. Caloz and T. Itoh, "Application of the transmission line theory of left-handed (LH) materials to the realization of a microstrip "LH line"

指導教授

丘增杰

審核日期

2017-7-26

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