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PIER PIER B PIER C PIER M PIER Letters PIER Photonics
2018-10-16
Printed Circularly Polarised Asymmetric Ultra-Wideband Antenna
By
Karavilavadakkethil Chellappan Prakash,

    Dr. Karavilavadakkethil Chellappan Prakash

    Department of Electronics

    Cochin University of Science and Technology

    India

    Homepage

Puthiyapurayil Viswanathan Vinesh,

    Dr. Puthiyapurayil Viswanathan Vinesh

    Department of Electronics

    Cochin University of Science and Technology

    India

    Homepage

Manoj Mani,

    Dr. Manoj Mani

    Cochin University of Science and Technology

    India

    Homepage

Sumitha Mathew,

    Dr. Sumitha Mathew

    Department of Electronics

    Cochin University of Science and Technology

    India

    Homepage

Pezholil Mohanan,

    Professor Pezholil Mohanan

    Department of Electronics

    Cochin University of Science & Technology

    India

    Homepage

Kesavath Vasudevan

    Professor Kesavath Vasudevan

    Department of Electronics

    Cochin University of Science & Technology

    India

    Homepage

Progress In Electromagnetics Research M, Vol. 74, 179-189, 2018
doi:10.2528/PIERM18090205 | Google Scholar

Abstract
Printed, circularly polarised, microstrip line fed antenna having asymmetric slotted structure is presented. Two antennas, antenna 1 (A1) and antenna 2 (A2), having the same design but radiating with opposite senses of circular polarisation are fabricated. The geometrical structure consists of uneven combination of elements fixed through parametric variations. The measurements yielded significant impedance bandwidth (IBW) and axial ratio bandwidth (ARBW) for axial ratio (AR) ≤ 3 dB. A1 offered IBW of 9.67 GHz (2.46-12.13 GHz, 132.6%), ARBW of 7 GHz (4-11 GHz, 93.33%) and a peak realised gain of 4.05 dBi. A2 offered IBW of 10.05 GHz (2.55-12.6 GHz, 132.7%), ARBW of 7.3 GHz (3.9-11.2 GHz, 96.7%) and a peak realised gain of 4.1 dBi. This constitutes a wide coverage of over 88% of the ultra-wideband (UWB) spectrum (3.1-10.6 GHz). Omnidirectional radiation patterns and marginal group delays are the other features of these antennas. The proposed design is validated through simulations and experimental investigations.
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Citation
Karavilavadakkethil Chellappan Prakash, Puthiyapurayil Viswanathan Vinesh, Manoj Mani, Sumitha Mathew, Pezholil Mohanan, and Kesavath Vasudevan, "Printed Circularly Polarised Asymmetric Ultra-Wideband Antenna," Progress In Electromagnetics Research M, Vol. 74, 179-189, 2018.
doi:10.2528/PIERM18090205
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