Compact CPW-Fed ultrawideband MIMO antenna using hexagonal ring monopole antenna elements |
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| Affiliation: | 1. Department of Electronics and Communication Engineering, Faculty of Technology, University of Delhi, New Delhi, Delhi 110021, India;2. Division of Electronics and Communication Engineering, Netaji Subhas University of Technology, New Delhi, Delhi 110078, India;3. School of Computational and Integrative Sciences, Jawaharlal Nehru University, New Delhi, Delhi 110067, India;4. Department of Electrical and Electronics Engineering, Darbhanga College of Engineering, Darbhanga, Bihar 846005, India;1. The 722nd Research Institute of China Shipbuilding Industry Corporation, Wuhan, China;2. Electronic Information School, Wuhan Universtiy, Wuhan, China;3. Department of Electronics and Information Engineering, Central China Normal University, Wuhan, China;1. School of Electronics Engineering, Kalinga Institute of Industrial Technology, Bhubaneswar 751024, India;2. Microwave and Antenna Research Laboratory, Electronics and Communication Engineering Department, National Institute of Technology Durgapur, 713209, India;1. Amity University Gwalior, India;2. Medicaps University Indore, India;3. Malaviya National Institute of Technology, Jaipur, India |
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| Abstract: | In this paper, a compact coplanar waveguide (CPW) fed ultra-wide band (UWB) multi input multi output (MIMO) antenna is proposed. The antenna consists of two antiparallel hexagonal ring monopole elements. Circular arcs shaped grounded stubs are used to enhance the isolation, both the arcs are connected through stub to make common ground. Tapering of the slots of CPW feed line at feed point, and grounded slots are introduced for impedance matching over UWB. The proposed antenna is fabricated and impedance bandwidth, isolation, radiation pattern, and gain are measured. Moreover, envelop correlation coefficient (ECC) results are given. Proposed antenna structure operates in the frequency range 3–12 GHz with a fractional bandwidth of 120% keeping isolation better than 15 dB. The antenna has a compact size of 45 × 25 mm2. |
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| Keywords: | Multiple-input–multiple-output antenna Ultra-wide band CPW-fed Isolation |
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