A Wideband Superconducting Filter Using Strong Coupling Resonators for Radio Astronomy Observatory

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	A Wideband Superconducting Filter Using Strong Coupling Resonators for Radio Astronomy Observatory
	Yu, T ; Li, CG ; Li, F ; Zhang, Q ; Sun, L ; Gao, L ; Wang, YH ; Zhang, XQ ; Li, H ; Jin, CJ ; Li, JB ; Liu, HF ; Gao, CZ ; Meng, JB ; He, YS
刊名	IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES
	2009
卷号	57 期号:7 页码:1783
关键词	SPIRAL RESONATORS
ISSN号	0018-9480
通讯作者	Yu, T: Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100190, Peoples R China.
中文摘要	A 12-pole wideband superconducting microstrip bandpass filter, which has a fractional bandwidth of 38% and a center frequency of 1455 MHz, is presented for the Miyun 50-m radio astronomy telescope, Beijing, China. A novel resonator, which can not only generate very large coupling, but also push its first spurious resonant peak away from the passband, is introduced. A new style interleaved coupling structure is proposed and successfully used in this study to realize the remarkably required strong coupling. To achieve high edge slope on the high side of the passband, as required, a single transmission zero was introduced. The filter was fabricated on a 36 mm x 30 mm x 0.5 mm double-sided YBa(2)Cu(3)O(7) film deposited on an MgO substrate. The measured results showed that the filter had 0.05-dB minimum insertion loss, 0.08-dB passband ripple, and 23-dB return loss at a temperature of 40 K. The first spurious peak did not appear until 2632 MHz. The overall measured performance showed good agreement with the simulation.
收录类别	SCI
资助信息	National High Technology Research and Development Program of China [2007AA032215]; Chinese Academy of Sciences [KJCX2-YW-W16]
语种	英语
公开日期	2013-09-17
内容类型	期刊论文
源URL	[http://ir.iphy.ac.cn/handle/311004/33354]
专题	物理研究所_物理所公开发表论文_物理所公开发表论文_期刊论文
推荐引用方式 GB/T 7714	Yu, T,Li, CG,Li, F,et al. A Wideband Superconducting Filter Using Strong Coupling Resonators for Radio Astronomy Observatory[J]. IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES,2009,57(7):1783.
APA	Yu, T.,Li, CG.,Li, F.,Zhang, Q.,Sun, L.,...&He, YS.(2009).A Wideband Superconducting Filter Using Strong Coupling Resonators for Radio Astronomy Observatory.IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES,57(7),1783.
MLA	Yu, T,et al."A Wideband Superconducting Filter Using Strong Coupling Resonators for Radio Astronomy Observatory".IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES 57.7(2009):1783.