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指導老師:陳文山老師 指導學長:呂子齊 班級:網通三甲 學號:4a 姓名:梁碩文

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Presentation on theme: "指導老師:陳文山老師 指導學長:呂子齊 班級:網通三甲 學號:4a 姓名:梁碩文"— Presentation transcript:

1 指導老師:陳文山老師 指導學長:呂子齊 班級:網通三甲 學號:4a236054 姓名:梁碩文
Frequency reconfigurable multiple-input multiple-output antenna with high isolation 指導老師:陳文山老師 指導學長:呂子齊 班級:網通三甲 學號:4a236054 姓名:梁碩文

2 摘要 MIMO天線包括兩個可重新配置的印刷單極天線與耦合導體和隔離改進 為了改變工作頻率,PIN二極管被嵌入天線
根據PIN二極管的通/斷狀態,諧振頻率在WLAN頻帶之間改變( MHz和 MHz)和m的WiMAX頻帶( MHz)

3 天線結構 天線整體尺寸:80x40mm2 天線輻射尺寸:15x40mm2
應用頻帶: WLAN (2400–2483 MHz,5150–5350MHz) m-WiMAX (3400–3600 MHz)

4 正面

5 反面

6 根據二極管開關狀態模擬

7 L5參數探討

8 2.4GHz的電流分布圖

9 L9參數探討

10 模擬測量S11和S21

11 結論 MIMO天線提出了高隔離度 一個IIS來放置天線之間高隔離在所有工作頻帶實現低於220 dB的隔離值
多樣性表現由ECC和MEG率評估,並表現出優異的值

12 心得 這次的paper跟上一篇難易度差距蠻大的,內容都看不太懂,多了許多陌生的東西像是隔離,隔離對MIMO來說好像是必要的,所以要好好的學起來。

13 參考文獻 1 Ge, Y., Esselle, K.P., Bird, T.S.: ‘Small quad-band WLAN antenna’,IEEE Antennas Propag. Soc. Int. Symp., 2005, 4B, pp. 56–59 2 Wang, Y.S., Lee, M.C., Chung, S.J.: ‘Two PIFA-related miniaturizeddual-band antennas’, IEEE Trans. Antennas Propag., 2007, 55, (3),pp. 805–811 3 Jung, C.W., Kim, K.: ‘Reconfigurable antenna for concurrent operationover cellular and connectivity bands’, IEEE Electron. Lett., 2008, 44,(5), pp. 334–335 4 Chung, K., Yoon, J.H.: ‘Integrated MIMO antenna with high isolationcharacteristic’, IEEE Electron. Lett., 2007, 43, (4), pp. 199–201 5 Gao, Y., Chiau, C.C., Chen, X., Parini, C.G.: ‘Modified PIFA and itsarray for MIMO terminals’, IEE Proc. Microw. Antennas Propag.,2005, 152, (4), pp. 255–259 6 Kim, K.J., Lim, W.G., Yu, J.W.: ‘High isolation internal dual-bandplanar inverted-F antenna diversity system with band-notched slots forMIMO terminals’. Proc. ‘EuMA’, September 2006, pp. 1414– Carrasco, H., Hristov, H.D., Feick, R., Cofre, D.: ‘Mutual couplingbetween planar inverted-F antennas’, Microwave Opt. Technol. Lett.,2004, 42, (3), pp. 224–227 8 Mak, A.C.K., Rowell, C.R., Murch, R.D.: ‘Isolation enhancementbetween two closely packed antennas’, IEEE Trans. AntennasPropag., 2008, 56, (11), pp. 3411– Chiu, C.Y., Cheng, C.H., Murch, R.D., Rowell, C.R.: ‘Reduction ofmutual coupling between closely-packed antenna elements’, IEEETrans. Antennas Propag., 2007, 55, (6), pp. 1732–1738

14 10 Chebihi, A. , Luxey, C. , Diallo, A. , Thuc, P. L. , Staraj, R
10 Chebihi, A., Luxey, C., Diallo, A., Thuc, P.L., Staraj, R.: ‘A novelisolation technique for closely spaced PIFAs for UMTS mobilephones’, IEEE Antennas Wirel. Propag. Lett., 2008, 7, pp. 665– Yang, F., Samii, Y.R.: ‘Mircostrip antennas integrated withelectromagnetic band-gap (EBG) structure: a low mutual couplingdesign for array applications’, IEEE Trans. Antennas Propag., 2003,51, (10), pp. 2936– Han, M.S., Choi, J.H.: ‘Multiband MIMO antenna with a band stop filterfor high isolation characteristics’. Proc. IEEE Antennas Propag. Soc. Int.Symp., June 2009, pp. 1–4 13 Mallahzadeh, A.R., Seyyedrezaei, S.F., Ghahvehchian, N., Nezhad,S.M.A., Mallahzadeh, S.: ‘Tri-band printed monopole antenna forWLAN and WiMAX MIMO systems’. Proc. Fifth European Conf. onAntennas and Propagation (EUCAP), April 2011, pp. 548– Kim, K.J., Park, K.H.: ‘The high isolation dual-band inverted F antennadiversity system with the small N-section resonators on the groundplane’, Microwave Opt. Technol. Lett., 2007, 49, (3), pp. 731– Data Sheet of MPP4203 PIN Diodes: Microsemi, Application Note,available at 16 Ansoft Corporation: Ansoft High Frequency Structure Simulator, v10, Ansoft Corporation, Rebiez, G.M.: ‘RF MEMS, theory, design, and technology’ (JohnWileyand Sons, Inc., Hoboken, NJ, 2003), Ch Lim, J.H., Back, G.T., Ko, Y.I., Song, C.W., Yun, T.Y.: ‘Areconfigurable PIFA using a switchable PIN-diode and a fine-tuning varactor for USPCS/WCDMA/m-WiMAX/WLAN’, IEEE Trans.Antennas Propag., 2010, 58, (7), pp. 2404– Blanch, S., Romeu, J., Corbella, I.: ‘Exact representation of antennasystem diversity performance from input parameter description’, IEEEElectron. Lett., 2003, 39, (9), pp. 705–707

15 20 Taga, T.: ‘Analysis for mean effective gain of mobile antennas in landmobile radio environments’, IEEE Trans. Veh. Technol., 1990, 39,(2), pp. 117– Vaughan, R.G., Anderson, J.B.: ‘Antenna diversity in mobilecommunications’, IEEE Trans. Antennas Propag., 1987, 36, (4),pp. 149–172

16 THE END


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