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	Compact superconducting narrowband filter at UHF band using twin-spiral resonators
	Jin Shi-chao ; Wei Bin ; Zhang Xiao-ping ; Cao Bi-song ; Peng Hui-li ; Piao Yun-long ; Guo Xu-bo
	2010-10-12 ; 2010-10-12
关键词	Practical Experimental/ high-temperature superconductors microstrip lines resonator filters superconducting filters superconducting microwave devices superconducting resonators UHF filters/ compact superconducting narrowband filter UHF band twin-spiral resonators high temperature superconducting filter microstrip-width technology filter pattern size frequency 500 MHz/ B3240M Superconducting microwave devices B1320 Waveguide and microwave transmission line components B1310 Waveguides and microwave transmission lines B1270 Filters and other networks B3220H High-temperature superconducting materials/ frequency 5.0E+08 Hz
中文摘要	Due to the requirement of weak coupling and the substrate size limitation, it is still difficult to design and fabricate high temperature superconducting ( HTS) filter with a fractional bandwidth narrower than 0. 5% at ultra high frequency (UHF) band. Using the twin-spiral resonators, in this paper, we have presented the design and performance of a 6-pole HTS filter centered at 500 MHZ with a 0.4% bandwidth. With the 80 m-microstrip-width technology, the filter pattern size is only 28 mm 8 mm. The measurements show that the minimum and maximum insertion losses are 0.12 dB, 0.46 dB, respectively. The return loss is better than-13.9 dB, and the out-of-band rejection is 70 dB. Therefore, it is indicated that twin-spiral resonator with 80 m-microstrip-width is suitable to design narrow band HTS filter at low frequency side of UHF band.
语种	中文
出版者	Science Press ; China
内容类型	期刊论文
源URL	[http://hdl.handle.net/123456789/81513]
专题	清华大学
推荐引用方式 GB/T 7714	Jin Shi-chao,Wei Bin,Zhang Xiao-ping,et al. Compact superconducting narrowband filter at UHF band using twin-spiral resonators[J],2010, 2010.
APA	Jin Shi-chao.,Wei Bin.,Zhang Xiao-ping.,Cao Bi-song.,Peng Hui-li.,...&Guo Xu-bo.(2010).Compact superconducting narrowband filter at UHF band using twin-spiral resonators..
MLA	Jin Shi-chao,et al."Compact superconducting narrowband filter at UHF band using twin-spiral resonators".(2010).

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