AN IMPROVED ZEROTH ORDER RESONATOR USING LEFT HANDED METAMATERIAL

Authors

  • Dileep Kumar Upadhyay
  • Srikanta Pal

DOI:

https://doi.org/10.1590/S2179-10742013000100011

Keywords:

Composite right left handed transmission line, Interdigital capacitor, Left handed metamaterial, Zeroth order resonator

Abstract

In this paper an improved version of zeroth order resonator (ZOR) using Left Handed Metamaterial (LHM) is reported, and its performance is compared with the earlier published ZOR. The resonator is designed based on microstrip technology using composite right left handed transmission line (CRLH TL) approach. The conventional ZOR is designed based on the CRLH TL along with two coupling slots at the input and output ports, whereas the proposed design of ZOR is based on
coupling capacitors. Use of coupling capacitor in place of coupling slot improves resonance characteristic of ZOR in terms of return loss and insertion loss and also increases the operational bandwidth. The measured resonant frequency, return loss, insertion loss and fraction bandwidth of the proposed 1.5- unit cell ZOR are 1.5 GHz, -26.31 dB, -0.42 dB and 20.66% respectively, whereas for the conventional 1.5-unit cell ZOR these measured parameters are 1.8 GHz, -6.63 dB, -9.09 dB and 0.77% respectively. The frequency parameter and performance of the resonators are evaluated by full-wave electromagnetic simulator, IE3D, based on method of moments (MoM) and all these results are verified by measurements.

References

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Published

2013-08-01

How to Cite

Dileep Kumar Upadhyay, & Srikanta Pal. (2013). AN IMPROVED ZEROTH ORDER RESONATOR USING LEFT HANDED METAMATERIAL. Journal of Microwaves, Optoelectronics and Electromagnetic Applications (JMOe), 12(1), 131–140. https://doi.org/10.1590/S2179-10742013000100011

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Section

Regular Papers