Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/7307
標題: 應用於IEEE802.11之濾波器的分析與設計
Analysis and Design of Filters for IEEE802.11 Applications
作者: 洪國育
Hong, Guo-YO
關鍵字: stepped-impedance Low Pass Filter( LPF);步階低通濾波器;highpass filter;J-inverter;Bandpass filter;高通濾波器;導納轉換器;帶通濾波器
出版社: 電機工程學系所
引用: 參考文獻 [1] Kazimierz Siwiak and Debra McKeown, Ultra-wideband Radio Technology. UK: Wiley, 2004. [2] Revision of Part 15 of the Commission’s Rules Regarding. Ultra-Wideband Transmission Systems,” First Report and Order, ET Docket 98-153, adopted Feb. 14, 2002, released July 15, 2002 [3] “UWB History.” [Online]. Available: http://www.multispectral.com/index.html] [4] IEEE 802.15 WPAN High Rate Alternative PHY Task Group 3a (TG3a) [Online]. Available: http://www.ieee802.org/15/pub/TG3a.html [5] DS-UWB Physical Layer Submission to 802.15 Task Group 3a.” Available: ftp://ieee:wireless@ftp.802wirelessworld.com/15/04/15-04 -0137-03- 003a-merger2-proposal-ds-uwb-update.doc [6] “Multi-band OFDM Physical Layer Proposal for IEEE 802.15 TasGroup . [Online]. Available: ftp://ieee:wireless@ftp.802wirelessworld.com/15/ Archive/ 2003/Jul03/03268r3P802-15_TG3a-Multi-band-CFP- -Document.doc [7] M. Makimoto and S. Yamashita ,“Bandpass filters using parallel coupled stripline stepped impedance resonator,” IEEE Trans. Microwave Theory and Tech.,vol.MTT-28,pp.1413-1417,Dec.1980 [8] J. S. Hong and M. J. Lancaster ,“End-coupled microstrip slow-wave . resonator filter,” Electronics Lett.,vol32,pp.1494-1496,Aug.1994. [9] M. Sagawa ,M. Makimoto and S. Yamashita ,“Geometrical structures And fundamental characteristics of microwave stepped-impedance resonators,” IEEE [10] Trans. Microwave Theory and Tech.,vol.45,No.7, pp.1078-1084 ,July 1997. [11] D. M. Pozar, Microwave Engineering, 3nd ed., New York: John Wiley & Sons, 2005 [12] Ching-Luh,Fu-chiehHsu and Jen-Tsai“Microstrip Bandpass Filter for Ultra-Wideband(UWB) Wireless Communications”,2005 IEEE. [13 ] Hoi-Kai Pang,Ka-Meng-Ho,Kam-Weng Tam and Maritins“A compact Microstrip λ/4-SIR Interdigital Bandpass Filter with Extended Stopband ”2004 IEEE MTT-sDigest. [14 M. Makimoto and S. Yamashita, Microwave Resonators and and Filters for Wireless Communication – Theory and Design, Berlin, Germany: Springer, 2001. [15] H. Wang, and L. Zhu, “Aperture-backed microstrip stepped impedance resonator with ultra-broad rejection bandwidth,” Electron. Lett., vol.40, no.19, pp. 1188-1189, Sept. 2004 [16] Kuo-Sheng Chin, Liu-Yang Lin and Jen-Tsai Kuo, "An improved formula for design of wideband parallel-coupled microstrip bandpass filters," in the Proceedings of 2003 Progress in Electromagnetics Research Symposium , pp.72, Hawaii. [17] K.-S. Chin, L.-Y. Lin and J.-T. Kuo, “New formulas for synthesizing microstrip bandpass filters with relatively wide bandwidths,” IEEE Trans. Microwave and Wireless Components Letters, vol.14, pp. 231-233, May 2004. [18] D. P. Andrews and C. S. Aitchison, “Wide-band lumped-element quadrature 3-dB couplers in microstrip,” IEEE Trans. Microwave Theory Tech., pp. 2424-2431, Dec. 2000.
摘要: 
摘要
本論文設計帶通濾波器,利用步階低通濾波器,使用步階阻抗的方式與截止頻帶減弱在較高的頻帶與高通濾波器,使用四分之ㄧ波長短路殘段,截止頻帶落在較低頻帶,兩種結構串接而成帶通濾波器。傳統上,平行耦合微帶線帶通濾波器,是兩段四分之ㄧ波長傳輸線等效成一個導納轉器,因為導納轉換器並不具隨頻率改變的特性,此種僅適合窄頻寬時較準確,用在大頻寬時,實際的頻寬會縮小,經由改善後,可提高頻寬。雙頻帶帶通濾波器是利用步階阻抗諧振器之阻抗比與傳輸線之折線,可用來控制第二次諧波的頻率與基頻通帶的比值,藉由改變阻抗比,來求得所要的第二次諧波,利用此特性,其中分析了幾種不同形式的步階阻抗諧振器,皆可用來設計雙頻帶帶通濾波器,帶通濾波器與雙頻帶帶通濾波器是針對IEEE80211a與IEEE802.11b無線區域網路所設計。

Abstract
Our target is to design a bandpass filter by cascading stepped-impedance Low Pass Filter( LPF)and highpass filter . The stepped-impedance LPF is employed to attenuate the upper stopband and the quarter-ware short-circuited stubs are used to realize the lower stopband. Through the designed bandpass filter, it can increase the total bandwidth.
Moreover, the dual-band bandpass filters are designed by using the impedance ratio of stepped impeedance resonator and meander of transmission Line.The impedance ratio and the meander could control the frequency of the second harmonic and the baseband ratio. According to that,we analyze several kinds of stepped impeedance resonator and use them to design the dual-band bandpass filters.In the thsis , The proposed bandpass filters and dual-band bandpass filters are designed for IEEE 802.11a/b wireless communicatuon system.
URI: http://hdl.handle.net/11455/7307
其他識別: U0005-0208200717401900
Appears in Collections:電機工程學系所

Show full item record
 

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.