Miniature microwave devices based on a combination of natural right-handed and metamaterial left-handed transmission lines

Issue		Eur. Phys. J. Appl. Phys. Volume 46, Number 3, June 2009 Metamaterials


Article Number		32610
Number of page(s)		6
Section		Metamaterials 2007
DOI		10.1051/epjap/2008195
Published online		10 March 2009

Eur. Phys. J. Appl. Phys. 46, 32610 (2009)
DOI: 10.1051/epjap/2008195

Miniature microwave devices based on a combination of natural right-handed and metamaterial left-handed transmission lines

I. Vendik, D. Kholodnyak, E. Serebryakova and P. Kapitanova

Departement of Microelectronics et Radio, St. Petersburg Electrotechnical University 5 Prof. Popov Str., St. Petersburg 197376, Russia

IBVendik@eltech.ru

Received: 18 February 2008 / Received in final form: 8 September 2008 / Accepted: 20 October 2008 / Published online: 10 March 2009

Abstract
The general approach to a design of miniature microwave devices based on a combination of transmission line sections with positive and negative dispersion is considered. Such lines, which are also known as right- and left-handed transmission lines, exhibit different dispersion characteristics. Using combination of these lines gives additional degrees of freedom for improvement of microwave device performance. At the same time, there is a possibility to decrease dimensions of the devices drastically. The following passive devices are under consideration: broadband digital phase shifters, directional couplers, dual-band resonators and filters exhibiting no spurious response. The potential benefit of this approach to the design of microwave devices is discussed.  

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