Resonant dipole antennas for continuous-wave terahertz photomixers

被引：32

作者：

Gregory, IS

Tribe, WR

Cole, BE

Evans, MJ

Linfield, EH

Davies, AG

Missous, M

机构：

[1] Univ Cambridge, Cavendish Lab, Semicond Phys Grp, Cambridge CB3 0HE, England

[2] TeraView Ltd, Cambridge CB4 0WG, England

[3] Univ Leeds, Sch Elect & Elect Engn, Leeds LS2 9JT, W Yorkshire, England

[4] Univ Manchester, Inst Sci & Technol, Dept Elect Engn & Elect, Manchester M60 1QD, Lancs, England

来源：

APPLIED PHYSICS LETTERS | 2004年 / 85卷 / 09期

基金：

英国工程与自然科学研究理事会;

关键词：

D O I：

10.1063/1.1789244

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We present measurements and numerical simulations for the performance of resonant dipole antennas used in continuous-wave terahertz photomixers. We demonstrate that center-feed dipoles, with inductively choked electrical feeds, are a good choice for a resonant emitter design, and outperform broadband spiral antennas by a factor of five at a resonant frequency of 0.4 THz. Excellent agreement is found between experiment and the predictions of finite element simulations. Furthermore, we show that the dipoles can outperform spirals across frequency bands of over 0.5 THz, opening the way for their use in terahertz spectroscopy. (C) 2004 American Institute of Physics.

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页码：1622 / 1624

页数：3

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