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Circularly Polarized Defected Ground Broadband Antennas for Wireless Communication Applications

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Proceedings of 2nd International Conference on Micro-Electronics, Electromagnetics and Telecommunications

Part of the book series: Lecture Notes in Electrical Engineering ((LNEE,volume 434))

Abstract

In this chapter a broadband antenna with defected ground is proposed for mobile (1.9–2.1 GHz), Wireless LAN (2.4 GHz) and Bluetooth (2.4–2.45 GHz) applications. The proposed antenna exhibits circular polarization in the range of 2.2–2.45 GHz with axial ratio less than 3 dB. A modified ground structure antenna is also proposed in this work for notching the band between (2.2–2.45 GHz). Antenna model 1 with circular polarization is providing impedance bandwidth of 32% and Antenna model 2 with linear polarization is providing impedance bandwidth of 25% (1.7–2.2 GHz) at fundamental resonant frequency and 16% (2.5–2.9 GHz) at second resonant frequency. The axial ratio bandwidth for circularly polarized antenna is around 38%. The designed antennas are providing peak realized gain of more than 5 dB in the operating bands and showing excellent monopole like radiation patterns with good impedance matching.

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Acknowledgements

We acknowledge our sincere thanks to the management of NRI Institute, V R Siddhartha Engineering College and K L University for their support and DST through grant SR/FST/ETI-316/2012 and ECR/2016/000569.

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Authors and Affiliations

  1. Department of ECE, Acharya Nagarjuna University, Guntur, AP, India

    Abdul Rahiman Sheik

  2. Department of ECE, NRI Institute of Technology, Pothavarappadu, AP, India

    Abdul Rahiman Sheik

  3. Department of ECE, V R Siddhartha Engineering College, Vijayawada, AP, India

    Kalva Sri Rama Krishna

  4. Department of ECE, K L University, Guntur, AP, India

    B. T. P. Madhav

Authors
  1. Abdul Rahiman Sheik
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  2. Kalva Sri Rama Krishna
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  3. B. T. P. Madhav
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Corresponding author

Correspondence to Abdul Rahiman Sheik .

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Editors and Affiliations

  1. Deparment of Computer Science and Engineering, PVP Siddhartha Institute of Technology, Vijayawada, Andhra Pradesh, India

    Suresh Chandra Satapathy

  2. Department of Electronics and Communication Engineering, Shri Ramswaroop Memorial Group, Lucknow, Uttar Pradesh, India

    Vikrant Bhateja

  3. Department of ECE, Raghu Institute of Technology, Visakhapatnam, Andhra Pradesh, India

    P. Satish Rama Chowdary

  4. Department of ECE, Raghu Institute of Technology, Visakhapatnam, Andhra Pradesh, India

    V.V.S.S. Sameer Chakravarthy

  5. Department of Electronics and Telecommunications, Universitat Ramon Llull, Barcelona, Barcelona, Spain

    Jaume Anguera

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Sheik, A.R., Krishna, K.S.R., Madhav, B.T.P. (2018). Circularly Polarized Defected Ground Broadband Antennas for Wireless Communication Applications. In: Satapathy, S., Bhateja, V., Chowdary, P., Chakravarthy, V., Anguera, J. (eds) Proceedings of 2nd International Conference on Micro-Electronics, Electromagnetics and Telecommunications. Lecture Notes in Electrical Engineering, vol 434. Springer, Singapore. https://doi.org/10.1007/978-981-10-4280-5_44

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  • DOI: https://doi.org/10.1007/978-981-10-4280-5_44

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  • Publisher Name: Springer, Singapore

  • Print ISBN: 978-981-10-4279-9

  • Online ISBN: 978-981-10-4280-5

  • eBook Packages: EngineeringEngineering (R0)

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