Investigation on capacitively loaded microstrip line

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Abstract

In this work, a microstrip transmission line with a planar left-handed structure, is investigated. Negative μ is achieved by creating periodic capacitive slots in the conducting strip of line. By using the transmission matrix method for periodic structures, these slots are analyzed. To this end, the unit cell is considered as a combination of two series capacitors and a section of transmission line, and then the transmission matrix of this unit cell is calculated. The dispersion relation verifies the existence of a stop band with a negative magnetic permeability (μ 0;< 0;0) below the cut-off frequency. The width of stop band can be controlled by changing the structure dimensions.

Keywords

Optical Phenomena and Photonics 

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Copyright information

© EDP Sciences, SIF, Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of PhysicsSharif University of TechnologyTehranIran
  2. 2.Young research clubIslamic Azad UniversityBonabIran
  3. 3.Department of Physics, Faculty of SciencesAzarbaijan Shahid Madani UniversityTabrizIran
  4. 4.Department of Laser and Optical EngineeringUniversity of BonabBonabIran

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