研究生: |
鄭岳弦 Yueh-Hsien Cheng |
---|---|
論文名稱: |
小型且寬頻的平面傳輸線至矩形波導模態轉接 Compact and Broadband Planar Transmission Lines to Rectangular Waveguide Modes Transitions |
指導教授: |
王蒼容
Chun-Long Wang |
口試委員: |
吳瑞北
Ruey-Beei Wu 楊成發 Chang-Fa Yang 王蒼容 Chun-Long Wang |
學位類別: |
碩士 Master |
系所名稱: |
電資學院 - 電子工程系 Department of Electronic and Computer Engineering |
論文出版年: | 2017 |
畢業學年度: | 105 |
語文別: | 中文 |
論文頁數: | 130 |
中文關鍵詞: | 矩形波導 、高階模態 、轉接 、平面傳輸線 |
外文關鍵詞: | Rectangular Waveguide, High order mode, transition, planar transmission line |
相關次數: | 點閱:208 下載:3 |
分享至: |
查詢本校圖書館目錄 查詢臺灣博碩士論文知識加值系統 勘誤回報 |
摘要
本論文提出了共面波導至矩形波導TE10模態轉接、共面波導至矩形波導TE20模態轉接以及微帶線至矩形波導TE20模態的轉接。
第二章的內容為50 Ω共面波導至矩形波導TE10模態的轉接設計,這個設計使用一個180°相移器結合觸角型天線,實現在0.8 mm的Rogers®RO4003的基板上。單一轉接模擬的反射係數小於-15 dB的頻率涵蓋了整個X-band(8.2~12.4 GHz),並且,於頻帶內穿透係數皆大於-0.244 dB;除了寬頻的特性之外,這個結構的體積相當小型。為了進一步縮小這個轉接的的尺寸,我們使用電感補償180°相移器結合觸角型天線來取代原來的設計,單一轉接模擬的反射係數小於-15 dB的頻率亦涵蓋了整個X-band(8.2~12.4 GHz),並且,於頻帶內穿透係數皆大於-0.22 dB。
在第三章中,我們提出了兩種平面傳輸線至矩形波導第一高階模態TE20轉接設計。其一為使用反對稱漸寬型錐形探針的共面波導至矩形波導TE20模態轉接,使用基板為0.8 mm的Rogers®RO5880製作,操作頻率為WR-90波導的第一與第二高階模態截止頻率之間(13.1~14.76 GHz)。單一轉接模擬的反射係數小於-10 dB的頻寬涵蓋13.48 GHz到14.7 GHz,幾乎涵蓋第一與第二高階模態截止頻率之間的頻率範圍,並且,於頻帶內矩形波導TE10模態的穿透係數幾乎都小於-20 dB,耦合槽線模態的反射係數皆小於-19 dB。另一結構為使用反對稱音叉的微帶線至矩形波導TE20模態轉接,使用基板與操作頻率同上。單一轉接模擬的反射係數小於-10 dB的的頻寬涵蓋13.34 GHz到15 GHz,並且,頻帶內矩形波導TE10模態的穿透係數都小於-20 dB。
ABSTRACT
In this thesis, a coplanar waveguide to rectangular waveguide TE10 mode transition, a coplanar waveguide to rectangular waveguide TE20 mode transition, and a microstrip line to rectangular waveguide TE20 mode transition are proposed. The details of the content are described below.
In Chapter 2, a 50-Ω coplanar waveguide to rectangular waveguide TE10 mode transition is discussed. The transition, which is implemented on a Rogers®RO4003 substrate of thickness 0.8 mm, consists of a 180° phase shifter and a feeler antenna. The frequency range, for which the reflection coefficient is smaller than -15 dB, covers the whole X-band (8.2~12.4 GHz). In the X-band, the transmission coefficient is larger than -0.244 dB. In addition to the broadband performance, the transition occupies a small area. In order to further reduce the circuit size, a transition, which consists of an inductance-compensated 180° phase shifter and a feeler antenna is proposed. The frequency range, for which the reflection coefficient is smaller than -15 dB, also covers the whole X-band (8.2~12.4 GHz). In the X-band, the transmission coefficient is larger than -0.22 dB.
In Chapter 3, two planar transmission lines to rectangular waveguide TE20 mode transitions are proposed. First of all, through using the antisymmetric tapered probe, a coplanar waveguide to rectangular waveguide TE20 mode transition is proposed. The transition is implemented on a Rogers®RO5880 substrate of thickness 0.8 mm. The operation band of the transition is designated to fall between the frequency of the first higher mode and the frequency of the second higher order mode (13.1~14.76 GHz). The frequency range, for which the reflection coefficient is smaller than -10 dB, covers 13.48 GHz to 14.7 GHz, almost emcompassing the designated operation band (13.1~14.76 GHz). In this frequency range, the transmission coefficient of the TE10 mode is smaller than – 20 dB while the reflection coefficient of the coupled slotline mode is smaller than -19 dB. Secondly, a microstrip line to rectangular waveguide TE20 mode transition using the antisymmetric fork is proposed. The frequency range, for which the reflection coefficient is smaller than -10 dB, covers 13.34 GHz to 15 GHz. In this frequency range, the transmission coefficient of the TE10 mode is smaller than – 20 dB.
[1] G. E. Ponchak and R. N. Simons, "A new rectangular waveguide to coplanar waveguide transition," in IEEE MTT-S Int. Microw. Symp. Dig., vol. 1. Dallas, TX, USA, May 1990, pp. 491-492. .
[2] R. Shireen, S. Shi, P. Yao, C. A. Schuetz, J. Macario, and D. W. Prather, "CPW to Rectangular Waveguide Transition on an LiNbO3 Substrate," IEEE Trans. Microw. Theory Techn., vol. 57, no. 6, pp. 1494-1499, Jun. 2009.
[3] R.-Y. Fang, C.-T. Wang, and C.-L. Wang, "A direct CPW-to-rectangular waveguide transition using a dipole slot antenna," in Proc. 39th Eur. Microw. Conf., Rome, Italy, Sep. 2009, pp. 157-160.
[4] Y. Dong, T. K. Johansen, V. Zhurbenko, and P. J. Hanberg, "Rectangular waveguide-to-coplanar waveguide transitions at U-band using e-plane probe and wire bonding," in Proc. 46th Eur. Microw. Conf., London, UK, Oct. 2016, pp. 5-8.
[5] V. S. Möttönen, "Wideband coplanar waveguide-to-rectangular waveguide transition using fin-line taper," IEEE Microw. Wireless Compon. Lett., vol. 15, no. 2, pp. 119-121, Feb. 2005.
[6] T.-H. Lin and R.-B. Wu, "CPW to waveguide transition with tapered slotline probe," IEEE Microw. Wireless Compon. Lett., vol. 11, no. 7, pp. 314-316, Jul. 2001.
[7] V. S. Möttönen and A. V. Raisanen, "Novel wide-band coplanar waveguide-to-rectangular waveguide transition," IEEE Trans. Microw. Theory Techn., vol. 52, no. 8, pp. 1836-1842, Aug. 2004.
[8] R.-Y. Fang and C.-L. Wang, "Miniaturized coplanar waveguide to rectangular waveguide transition using inductance-compensated slotline," IEEE Trans. Compon., Packag., Manuf. Technol., vol. 2, no. 10, pp. 1666-1671, Oct. 2012.
[9] S.-H. Wang, C.-C. Chang, Y.-C. Lee, and C.-L. Wang, "Compact and Broadband CPW-to-RWG Transition Using Stub Resonators," IEEE Trans. Microw. Theory Techn., vol. 64, no. 10, pp. 3198-3207, Oct. 2016.
[10] Q. Zhang, C.-W. Yuan, and L. Liu, "Theoretical Design and Analysis for TE20-TE10 Rectangular Waveguide Mode Converters," IEEE Trans. Microw. Theory Techn., vol. 60, no. 4, pp. 1018-1026, Apr. 2012.
[11] G. Liu, Y. Wang, Y. Pu, J. Wang, R. Yan, Y. Luo, et al., "A Millimeter Wave High-Order TE13 Mode Converter," IEEE Trans. Electron Devices, vol. 63, no. 7, pp. 2907-2911, Jul 2016.
[12] G. Liu, Y. Wang, Y. Pu, and Y. Luo, "Design and Microwave Measurement of a Novel Compact TE0n/TE1n'-Mode Converter," IEEE Trans. Microw. Theory Techn., vol. 64, no. 12, pp. 4108-4116, Dec. 2016.
[13] R. Martinez, M. Belaid, Z. Ouardirhi, J. J. Laurin, and W. Ke, "Concept of a quasi-optic power amplifier utilising a new converter of mode TE10 to TE20," in CCECE 2003 - Canadian Conference on Electrical and Computer Engineering. Toward a Caring and Humane Technology (Cat. No.03CH37436), May 2003, pp. 565-568 vol.1.