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A Compact Self Isolated UWB-MIMO Antenna with WiMAX and WLAN Band Notched Characteristics for Portable Wireless Applications

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Abstract

A miniature multiple input multiple output (MIMO) ultrawide band (UWB) antenna with dual band notched characteristics is proposed. The proposed MIMO UWB antenna has a microstrip feed line, two slotted rectangular radiating structures, and a slotted reduced ground structure. The antenna is constructed on an FR-4 substrate with a 40 × 20 mm2 compact dimension to span the − 10dB bandwidth of 2.5–12 GHz with a fractional bandwidth of 133%. The two notched bands for WiMAX (3.3–3.8 GHz) and WLAN (5–6.5 GHz), respectively, are generated using hook and E-structured stubs etched on patch and defective ground. Over the full operational frequency range, self-isolation of <-15 dB is obtained between two perpendicular radiating patch structures. 4-element MIMO antenna is also designed, studied and analysed. From the determined MIMO parameters, it can be concluded that the recommended antenna is adequate for portable wireless systems.

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Authors and Affiliations

  1. Department of ECE, Aditya University, Surampalem, India

    Tathababu Addepalli

  2. Department of ECE, Institute of Aeronautical Engineering, Hyderabad, Telangana State, India

    V Siva Nagaraju

  3. Department of EIE, Velagapudi Ramakrishna Siddhartha Engineering College (A), Vijayawada, Andhra Pradesh, India

    Mrudula Kilaru

  4. Department of ECE, Vasireddy Venkatadri Institute of Technology, Nambur, Guntur, Andhra Pradesh, India

    G Naveen Kumar

  5. Department of ECE, St. Ann’s College of Engineering & Technology, Chirala, Andhra Pradesh, India

    Jagadeesh Babu Kamili & Bandi Kiran Kumar

  6. Department of ECE, Gayatri Vidya Parishad College for degree and PG Courses (A), Visakhapatnam, Andhra Pradesh, India

    Ch Manohar kumar

  7. Department of ECE, Mohan Babu University, Erstwhile Sree Vidyanikethan Engineering College), Tirupati, Andhra Pradesh, India

    Padmaja Nimmagadda

Authors
  1. Tathababu Addepalli
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  2. V Siva Nagaraju
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  3. Mrudula Kilaru
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  4. G Naveen Kumar
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  5. Jagadeesh Babu Kamili
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  6. Ch Manohar kumar
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  7. Padmaja Nimmagadda
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  8. Bandi Kiran Kumar
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Contributions

T.A. proposed main objective and theme and executed the work. V.S.N. developed the proposed model. M.K. prepared part of the manuscript and contributed in the preparation of some figures. G.N.K. carried some part of the simulations. K.J.B. wrote some part of the manuscript and carried part of simulations. Ch.M.K. contributed in the preparation of figures and part of manuscript. P.N. contributed in the part of simulations and measurements. B.K.K contributed in the preparation of manuscript and carrying part of simulations.

Corresponding author

Correspondence to Jagadeesh Babu Kamili.

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Addepalli, T., Nagaraju, V.S., Kilaru, M. et al. A Compact Self Isolated UWB-MIMO Antenna with WiMAX and WLAN Band Notched Characteristics for Portable Wireless Applications. Wireless Pers Commun 135, 1363–1382 (2024). https://doi.org/10.1007/s11277-024-11085-4

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