Left handed rectangular waveguide resonator structures

Shelkovnikov, Alexander B. and Budimir, Djuradj (2005) Left handed rectangular waveguide resonator structures. In: Workshop on Metamaterials for Microwave and Optical Technologies, 18-20 Jul 2005, San Sebastien, Spain.

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SRRs are constructed as two square-shaped rings, each interrupted by a small gap, as shown in Fig. 1. Embedding small single split resonator elements on a dielectric substrate we obtain negative magnetic permeability for a metamaterials-based rectangular waveguide to perform a stopband in the certain frequency band. The dielectric slab is then transversely inserted in a metallic waveguide, thus changing its electromagnetic properties to support backward wave and introduce phase advance for the metamaterials-based waveguide. The dielectric substrate which is used to build a slab is Rogers Duroid/RT5880, with permittivity ε; r = 2.2 and thickness t = 0.508 mm. The waveguide was designed to operate at Ka-band. In order to investigate performance of the SRR metamaterials-based rectangular waveguide a one-resonator-unit structure was simulated at Ka-band (waveguide WG-22, section 7.112 x 3.556 mm). Metamaterial slab is realized as a copper SRR printed on top of the dielectric substrate. Copper metallizations thickness of the printed pattern is 17 μm. The slab is placed in the middle of the rectangular waveguide.

Item Type: Conference or Workshop Item (Paper)
Subjects: University of Westminster > Science and Technology > Electronics and Computer Science, School of (No longer in use)
Depositing User: Miss Nina Watts
Date Deposited: 06 Jul 2006
Last Modified: 11 May 2012 13:29
URI: http://westminsterresearch.wmin.ac.uk/id/eprint/2394

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