A high gain UWB human face shaped MIMO microstrip printed antenna with high isolation

Dharmarajan, A; Kumar, Pradeep; Afullo, Thomas J.

doi:10.1007/s11042-021-11827-7

Cited by 11 publications

(5 citation statements)

References 24 publications

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“…Ultra-Wide Band (UWB) is a widely used technology in communication systems as it provides a high data rate and reliable communication. UWB technology has been attracting much attention and rapidly advancing and leading to innovations [1]. However, it is utilized only in a specific application that requires a short distance for communicating due to its low power and its multipath problem [2].…”

Section: Introductionmentioning

confidence: 99%

Four ports MIMO printed antenna with high isolation for UWB and X-band systems

Ibrahim

Eltokhy²,

Daw

2023

Int. J. Microw. Wireless Technol.

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In this work, a compact size 4 ports multiple input multiple output (MIMO) slot antenna with the connected ground for Ultra-Wide Band (UWB) and X band applications is introduced and discussed. The single antenna is a cross-shaped slot antenna in the ground plane and a 50 Ω microstrip line with a small L-stub is used to feed the antenna on the other side. The suggested MIMO antenna has four identical elements arranged to be orthogonal to each other to enhance the MIMO system performance. The antenna elements are connected with a small strip to compose the proposed connected ground antennas. The suggested MIMO antenna has an overall size of 47 mm × 47 mm. The antenna has tested and simulated bandwidth with S11 < −10 dB extended from 4– 14 GHz and has isolation greater than 20 dB between ports without utilizing the decoupling elements and with good consistency between results. The MIMO antenna has peak gain and efficiency, envelope correlation coefficient, diversity gain, and channel capacity loss of 5.6 dBi and 80%, <5 × 10–3, 10 dB, and <0.4 bit/s/Hz, respectively which prove that our antenna can be suggested for the UWB MIMO applications.

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Section: Introductionmentioning

confidence: 99%

Four ports MIMO printed antenna with high isolation for UWB and X-band systems

Ibrahim

Eltokhy²,

Daw

2023

Int. J. Microw. Wireless Technol.

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“…Human face shaped ultra-wideband (UWB) MIMO antenna is designed. Slots are etched, and elliptical shape is modified to enhance the bandwidth, and rectangular and triangular slots are etched in ground plane to enhance the isolation [8]. Annular slot DGS [9] and rectangular slot and inverted L shaped stub [10] are used to improve the isolation.…”

Section: Introductionmentioning

confidence: 99%

Dual Band MIMO Antenna with High Isolation for GSM and WLAN Applications

Khade,

Trimukhe,

Verulkar

et al. 2023

PIER C

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We propose a compact dual-band MIMO antenna for GSM 1800 MHz and WLAN applications. A novel single branch dual band antenna consisting of a quarter annular ring and an inverted U-shaped strip is designed by decreasing the electromagnetic coupling between higher order modes of an annular ring ultra-wideband (UWB) antenna, and a simple technique of slots and I and L-shaped stubs protruding from ground plane is employed to achieve high isolation. S 11 < −10 dB over 1.704-1.934 GHz and 5.66-6.25 GHz frequency range and mutual coupling S 12 < −20 dB and < −28 dB over the two bands are achieved. The radiation pattern, envelope correlation coefficient (ECC), total active reflection coefficient (TARC), diversity gain (DG), and mean effective gain (MEG) conform to MIMO specifications. The prototype antenna is fabricated on a 0.244λ 0 × 0.17λ 0 FR4 substrate, where λ 0 is the free-space wavelength at 1.7 GHz. The antenna offers stable radiation patterns. The antenna is compact, simple to design, easy to fabricate, and low in cost. These characteristics depict the suitability of this antenna for portable wireless devices.

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“…In the past years, great efforts have been made to design MIMO antennas for 5G enabled portable devices and base stations. Numerous MIMO antenna designs based on electronic band gap (EBG) [7,8], DGS [9,10], artificial magnetic conductor (AMC) [11,12], dielectric resonator (DR) [13], loop and slot techniques [14][15][16], and substrate integrated waveguide (SIW) [17] have been proposed and can cover sub-6 GHz and mmWave bands. Aforementioned MIMO antenna designs suffer from the size, bandwidth, gain, isolation, and diversity problems.…”

Section: Introductionmentioning

confidence: 99%

Defected Ground Structure Based High Gain, Wideband and High Diversity Performance Quad-element MIMO Antenna Array for 5G Millimeter-wave Communication

Kumar¹,

Kumar²

2023

PIER B

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In this article, a planar compact grounded coplanar waveguide (GCPW)-fed 4-element multiple-input multiple-output (MIMO) antenna array with a defected ground structure (DGS) is demonstrated for the fifth generation (5G) millimeter-wave (mmWave) communication. Each element of the GCPW-fed mmWave MIMO antenna array contains a deformed pentagon-shaped radiating patch etched with a pair of identical circular slots in top surface and a DGS in bottom surface. To maintain low design complexity and compactness, a DGS is introduced and formed by embedding dual asymmetrical inverted T-shaped slots in the partial ground plane which enhance the gain and bandwidth of the antenna. The equivalent circuit model of the proposed DGS loaded GCPW-fed antenna is realized and presented. The proposed 4-element mmWave MIMO antenna array is realized by arranging the 4 identical antenna elements horizontally in a row with a distinct gap without any decoupling structure. It has the size of 1.02λ × 3.86λ × 0.021λ (at 25.66 GHz) and exhibits the measured bandwidth of 49.62% (25.30-42.0 GHz) with a peak gain of 12.02 dBi. Furthermore, the envelope correlation coefficient (ECC) < 0.0014, isolation > 24 dB between antenna elements, and channel capacity loss (CCL) < 0.29 bits/sec/Hz of the mmWave MIMO antenna array are attained over the entire mmWave frequency band.

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A high gain UWB human face shaped MIMO microstrip printed antenna with high isolation

Cited by 11 publications

References 24 publications

Four ports MIMO printed antenna with high isolation for UWB and X-band systems

Four ports MIMO printed antenna with high isolation for UWB and X-band systems

Dual Band MIMO Antenna with High Isolation for GSM and WLAN Applications

Defected Ground Structure Based High Gain, Wideband and High Diversity Performance Quad-element MIMO Antenna Array for 5G Millimeter-wave Communication

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