Metamaterial Based All Purpose Sensor Antenna

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The paper presents a compact metamaterial based sensor antenna for solid, liquid or soil moisture characterisation. The measurement setup is simple and convenient for all types of materials. The antenna comprises of a 9 arm spiral resonator embedded into the signal strip of a 50Ω Asymmetric coplanar strip transmission line fabricated on a substrate with εr 4.4, thickness 1.6mm and loss tangent 0.02. Overall size of the antenna is 10mm x 10mm x1.6mm. Since the structure is coplanar, any material beneath the spiral affects the resonant frequency. In addition, the sharp resonance gives higher sensitivity to the antenna, making it suitable for sensor applications. The antenna has omnidirectional radiation pattern giving equal sensitivity in all directions. Sensors used in real environment fluid characterisation and agriculture applications demand small dimensions to allow measurements with minimal disturbance to the surroundings, varying penetration depth and non ionising power levels. The proposed antenna satisfies the above conditions and the antenna operates in C band used in Indian remote sensing satellites for soil study.
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Metamaterial; Soil Sensor; Sensitivity

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Ming Huang and Jingjing Yang, Microwave Sensor Using Metamaterials,

J.X.Cao,H. Liu,T. Li, S.M.Wang, Z. G. Dong, and S. N. Zhu, High sensing properties of magnetic plasmon resonance in the double-rod and tri-rod structures, Applied Physics Letters, vol. 97, no. 7, 2010,pp. 0719051–0719053.

Abdullah Eroglu, Design of Wireless Data Acquisition Sensor System for Health Care Applications, (2012) International Journal on Communications Antenna and Propagation (IRECAP), 2 (6), pp. 386-391.

Vipul Sharma, S. S. Pattnaik, Nitin, Tanuj Garg and S. Devi, A metamaterials inspired miniaturized phi-shaped Antenna, International Journal of the Physical Sciences, Vol. 6(18), 9 September, 2011,pp. 4378-4381.

J.X.Cao, H. Liu, S.M.Wang, Y. J. Zheng, C. Zhu, Y. Wang, and S. N. Zhu, Magnetic Plasmon Sensing in Twisted Split-Ring Resonators, Advances in OptoElectronics,Volume 2012, Article ID 609691

T. Driscoll, G. O. Andreev, D. N. Basov et al., Tuned permeability in terahertz split-ring resonators for devices and sensors, Applied Physics Letters, vol. 91, no. 6, 2007, pp. 0625111–0625113

V. Deepu, R. Sujith, S. Mridula, C. K. Aanandan, K. Vasudevan and P. Mohanan, ACS Fed Printed F-Shaped Uniplanar Antenna For Dual Band WLAN Applications, Microwave And Optical Technology Letters, Vol. 51, No. 8, Aug 2009. pp1852-56

Goran Kiti, Vasa Radoni, and Vesna Crnojevi –Bengin, Soil moisture sensors based on metamaterials, Songklanakarin J. Sci. Technol.34 (6), Nov. - Dec. 2012, pp 689-693

Hinrich Romhild, Microwave Resonator Based Sensors,

Filippo Capalino, Metamaterials Handbook- Applications of Metamaterials- (CRC Press,2009)


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