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EBG Based Compact Design of Dual Band UWB MIMO Antenna Operating in Ku/K Band

Subuh Pramono(1*), Muhammad Hamka Ibrahim(2), Josaphat Tetuko Sri Sumantyo(3)

(1) Department of Electrical Engineering, Universitas Sebelas Maret, Indonesia
(2) Department of Electrical Engineering, Universitas Sebelas Maret, Indonesia
(3) Josaphat Microwave Remote Sensing Laboratory (JMRSL), Chiba University, Japan
(*) Corresponding author


DOI: https://doi.org/10.15866/irecap.v10i4.18692

Abstract


In this paper, a new EBG based compact design of dual band UWB MIMO antenna is proposed. This MIMO antenna operates in Ku-band and K-band. It consists of four slotted-rectangular element antennas and it occupies a compact size of 60.72×56.72 mm2. The existence of EBG enhances a -10 dB impedance bandwidth (VSWR ≤ 2) and it reduces mutual coupling. Based on the simulated numerical results, it is shown that the EBG based design has a 3.518 GHz of ultrawideband in Ku-band and a 3.699 GHz of ultrawideband in K-band, respectively. There is a 17.46 % bandwidth improvement in Ku-band. In addition, reducing the level of mutual coupling by using EBG technique reaches – 30 dB until – 70 dB along dual band. In addition, the presented design has very low ECC level, i.e., 0.003. This new proposed design has a good performance including low mutual coupling, compact size and ability to operate in dual band UWB.
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Keywords


EBG; UWB; MIMO Antenna; Dual Band

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References


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