資料載入中.....
|
請使用永久網址來引用或連結此文件:
http://ir.ncue.edu.tw/ir/handle/987654321/10708
|
題名: | Dual-band balanced BPF using λ/4 stepped-impedance resonators and folded feed lines |
作者: | Lee, Ching-Her;Wang, I-Chin;Hsu, Chung-I G. |
貢獻者: | 電子工程學系 |
日期: | 2009-12
|
上傳時間: | 2012-05-29T01:22:52Z
|
出版者: | VSP BV |
摘要: | This paper presents a second-order dual-band balanced bandpass filter (BPF) designed using bi-section quarter-wavelength (λ/4) stepped-impedance resonators (SIRs) and folded feed lines. The first two modes of the λ/4 SIRs are designed to resonate in the designated 2.4- and 5.2-GHz WLAN bands. High-impedance folded transmission-line sections are inserted in series with the feed lines to improve the overall impedance matching at the input/output ports, so that the signal transmission can be enhanced. In addition, the feed lines and λ/4 SIRs are properly arranged to form an all-stop-like coupling configuration for common-mode operation. For the first (second) operating band of interest, the fabricated balanced BPF printed on an FR4 substrate was measured to have a minimum differential-mode insertion loss of 3.03 dB (4.3 dB) and a minimum common-mode rejection level of as high as 15.7 dB (22.3 dB). |
關聯: | Journal of Electromagnetic Waves and Applications, 23(17/18): 2441-2449 |
顯示於類別: | [電子工程學系] 期刊論文
|
文件中的檔案:
檔案 |
大小 | 格式 | 瀏覽次數 |
2050300110014.pdf | 126Kb | Adobe PDF | 611 | 檢視/開啟 |
|
在NCUEIR中所有的資料項目都受到原著作權保護.
|