کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9841896 | 1525805 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Novel miniature high power ring filter
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The power handling capability of high temperature superconducting (HTS) filters is limited due to current concentration at the edges of the superconducting films. This problem can be overcome by using ring resonator, which employs the edge current free and reduces the current concentration. However, this kind of filter has large size. In order to reduce the cost and size and increase the power handling capability, in this paper a HTS photonic bandgap (PBG) structure filter is developed. The proposed pass band filter with PBG structure exhibits center frequency 12.23Â GHz, steepness (about 35Â dB/GHz), bandwidth (â3Â dB bandwidth is 0.045Â GHz), and low insertion loss (about â0.5Â dB), and can handle input power up to 1Â W (this value was limited by the measurement instrument used in the experiment). The size is reduced by 25%, insertion loss reduced by 37.5%, and steeper roll-off of the filter is also obtained compared with that in published literature.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Physica C: Superconductivity - Volume 420, Issues 3â4, 1 April 2005, Pages 125-129
Journal: Physica C: Superconductivity - Volume 420, Issues 3â4, 1 April 2005, Pages 125-129
نویسندگان
Hui-Fen Huang, Jun-Fa Mao, Zhi-Hua Luo,