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Electrically Small Microstrip Patch Antenna Loaded with Spiral Resonator for Wireless Applications

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Abstract

This paper focuses on a new dual turn spiral resonator (DTSR) loaded electrically small microstrip patch antenna. The proposed DTSR loaded antenna is mounted on Rogers RT/Duroid 5880 tm substrate and numerically analyzed with electromagnetic solver. The resonant frequency of the antenna gets lowered with improved magnetic permeability of dielectric materials through metamaterial loading. The DTSR loaded antenna resonates at 14.76 GHz compared to unloaded simple microstrip patch antenna resonating at 27.44 GHz. The proposed antenna also satisfies the condition of Chu limit for being electrically small antenna with appreciable return loss and gain of 7.17 dB and fractional bandwidth is 7.96%. This antenna can be used for satellite communications. The full wave simulated resonant frequency of DTSR is compared with frequency derived from equivalent circuit of model. It is observed that the analytically calculated resonant frequency is in close agreement with full wave numerically analyzed frequency. The negative permeability of the DTSR is also plotted to depict the metamaterial behavior.

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Authors and Affiliations

  1. Department of Electronics and Communication Engineering, Shaheed Bhagat Singh State Technical Campus, Ferozepur, Punjab, India

    Rajni Rajni

  2. Department of Electronics and Communication Engineering, Sant Longowal Institute of Engineering and Technology, Longowal, Sangrur, Punjab, India

    Anupma Marwaha

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  1. Rajni Rajni
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  2. Anupma Marwaha
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Correspondence to Rajni Rajni.

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Rajni, R., Marwaha, A. Electrically Small Microstrip Patch Antenna Loaded with Spiral Resonator for Wireless Applications. Wireless Pers Commun 96, 2621–2632 (2017). https://doi.org/10.1007/s11277-017-4315-z

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  • DOI: https://doi.org/10.1007/s11277-017-4315-z

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