Impedance of Hot-Electron Bolometer Mixers at Terahertz Frequencies

CORC > 紫金山天文台 > 中国科学院紫金山天文台 > 毫米波和亚毫米波技术实验室

	Impedance of Hot-Electron Bolometer Mixers at Terahertz Frequencies
	Kollberg, Erik L.1; Yngvesson, K. Sigfrid 2; Ren, Yuan 3; Zhang, Wen5 ; Khosropanah, Pourya 6; Gao, Jian-Rong 3,4
刊名	IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY
	2011-11-01
卷号	1 期号:2 页码:383-389
关键词	Electromagnetic simulations hot-electron bolometers (HEBs) low-noise mixer receivers terahertz thin-film devices
ISSN号	2156-342X
英文摘要	This paper discusses the current distribution in thin-film devices, especially in a hot-electron bolometer (HEB) mixer at terahertz frequencies, and the consequences of different current distributions on the device impedance. We first present an approximate analytical model from which we derive a proposed rule of thumb for deciding when the film is thin enough to support a current distribution that is uniform in the transverse direction. We then verify this rule by performing electromagnetic simulations. Our conclusion is that the current distribution in thin films with a relatively high DC resistivity and small film thickness with respect to the skin depth is essentially uniform up to 8 THz. These results are crucial, e. g., for understanding radiation coupling between an HEB and an antenna and indispensable when analyzing detectors and receivers based on bolometric properties of thin films.
学科主题	Astronomy & Astrophysics
WOS标题词	Science & Technology ; Technology ; Physical Sciences
类目[WOS]	Engineering, Electrical & Electronic ; Optics ; Physics, Applied
研究领域[WOS]	Engineering ; Optics ; Physics
收录类别	SCI
语种	英语
WOS记录号	WOS:000208702900008
公开日期	2012-08-07
内容类型	期刊论文
源URL	[http://libir.pmo.ac.cn/handle/332002/4436]
专题	紫金山天文台_毫米波和亚毫米波技术实验室
作者单位	1.Chalmers, Dept Microtechnol & Nano Sci, SE-41296 Gothenburg, Sweden 2.Univ Massachusetts, Dept Elect & Comp Engn, Amherst, MA 01003 USA 3.Delft Univ Technol, Kavli Inst Nanosci, NL-2628 CJ Delft, Netherlands 4.SRON Netherlands Inst Space Res, NL-3584 CA Utrecht, Netherlands 5.Chinese Acad Sci, Purple Mt Observ, Nanjing 300, Jiangsu, Peoples R China 6.SRON Netherlands Inst Space Res, NL-9747 AD Groningen, Netherlands
推荐引用方式 GB/T 7714	Kollberg, Erik L.,Yngvesson, K. Sigfrid,Ren, Yuan,et al. Impedance of Hot-Electron Bolometer Mixers at Terahertz Frequencies[J]. IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY,2011,1(2):383-389.
APA	Kollberg, Erik L.,Yngvesson, K. Sigfrid,Ren, Yuan,Zhang, Wen,Khosropanah, Pourya,&Gao, Jian-Rong.(2011).Impedance of Hot-Electron Bolometer Mixers at Terahertz Frequencies.IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY,1(2),383-389.
MLA	Kollberg, Erik L.,et al."Impedance of Hot-Electron Bolometer Mixers at Terahertz Frequencies".IEEE TRANSACTIONS ON TERAHERTZ SCIENCE AND TECHNOLOGY 1.2(2011):383-389.