Two Port Circularly Polarized MIMO Antenna Design and Investigation for 5G Communication Systems

Dwivedi, Ajay Kumar; Sharma, Anand; Pandey, Akhilesh Kumar; Singh, Vivek

doi:10.1007/s11277-021-08461-9

Cited by 49 publications

(26 citation statements)

References 38 publications

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“…It depicts how the radiation patterns of each antenna element interact when all ports are active at the same time. The ECC of the proposed MIMO antenna can be calculated by using [30] Equation (4).…”

Section: Parametric Studiesmentioning

confidence: 99%

“…On the other hand, in the situation of MIMO antenna misalignment, circularly polarized MIMO systems show better performance and reliability than linearly polarized MIMO systems [1]. For this purpose, a few antenna designs have been reported in the open literature [2][3][4]. Most importantly, along with circularly polarized MIMO antenna, the implementation of DRs has become the foremost choice as it can enhance bandwidth characteristics.…”

Section: Introductionmentioning

confidence: 99%

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A Compact Dielectric Resonator Based Dual Port Circularly Polarised Mimo Antenna for Wideband Applications

Chakraborty¹,

Banerjee²,

Saha³

et al. 2022

PIER M

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In this communication, a compact Dielectric Resonator (DR) based multiple-input-multipleoutput (MIMO) antenna is presented for wideband applications. The antenna consists of two modified kite-shaped monopoles where four DRs have been placed on the patch. Corners of four DRs have been etched to implement the orthogonal phase, which leads to circular polarization characteristics. Implementation of DRs also helps in bandwidth enhancement purpose. Two L-shaped parasitic strips along with a Y-shaped stub have been used in the ground plane so as to obtain high isolation, which leads to a decrease of mutual coupling between the antenna elements. The proposed antenna achieves a wide impedance bandwidth of 7.1-22 GHz (106%) along with low mutual coupling of less than −15 dB within the entire frequency range as well as circular polarization characteristics, which covers the frequency range (−3 dB) of 7.1-7.9 GHz (10.6%). Thus the antenna can be considered as a potential candidate for modern wireless communication systems.

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Section: Parametric Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A Compact Dielectric Resonator Based Dual Port Circularly Polarised Mimo Antenna for Wideband Applications

Chakraborty¹,

Banerjee²,

Saha³

et al. 2022

PIER M

View full text Add to dashboard Cite

show abstract

“…The comparison clearly shows that the designed antenna gives better performance than the other designs, in terms of size, bandwidth, axial ratio, gain, and isolation. It is shown that the designs in [35][36][37]42,44,46] have small sizes, but low isolations, low gains, and narrow bandwidths, while our proposed antenna has the lowest profile and smallest lateral dimensions to achieve good performance. The designs in references [33,38,40,45] suffer from bigger sizes, low isolations, low gains, narrow bandwidths, and the axial ratios are compared to the proposed designs.…”

Section: Introductionmentioning

confidence: 98%

“…In [41], a compact size and high isolation 2 × 2, a MIMO antenna was used for various applications of the ISM band, WLAN, of the lower frequency band of 5G. In [42], a wideband CP two-port MIMO antenna with a compact size was designed for the fifth-generation (5G) region in the sub-six GHz band. A wideband CP-MIMO antenna line patch was proposed among two antenna elements in [43].…”

Section: Introductionmentioning

confidence: 99%

Designed Circularly Polarized Two-Port Microstrip MIMO Antenna for WLAN Applications

Khan

Ullah

et al. 2022

Applied Sciences

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The proposed work describes a corner square-cut square-patch multiple-input multiple-output (MIMO) antenna with reduced mutual coupling for circular polarization (CP). A two-port MIMO-CP antenna was designed and operated at 5.6 GHz for wireless local area network (WLAN) applications. The dimensions of the MIMO-CP antenna were 22.5×50mm2(0.43λ0×0.933λ0) and the FR4 substrate height was 1.6 mm. Between the two-elements, the edge-to-edge distance was 12.2 mm (0.227 λ0), where λ0 was the free space wavelength at 5.6 GHz. A slot was created in the middle of the ground in the proposed MIMO antenna to reduce mutual coupling and improve CP. The ground slot improves impedance matching and provides a better S-parameter and axial ratio (AR), according to the antenna results. According to the simulated results, the proposed antenna bandwidth of 5.23–6.42 GHz (21.4%) for S11 were <−10 dB, isolation was −37 dB with a peak gain of 6 dB and AR ≤3 dB from 5.37 to 5.72 GHz (6.25%). The proposed antennas are simple to fabricate, have low profiles, are inexpensive, have good isolation, and are CP. The diversity gain (DG) and envelop correlation coefficient (ECC) results are better in the simulated frequency band. A MIMO-CP antenna geometry prototype is built and measured for comparison, yielding good results when compared to the simulated and measured results. The MIMO-CP antenna, as designed, is suitable for WLAN applications.

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“…It becomes very difficult to maintain orthogonal degenerate modes with a quarter-phase difference while maintaining isolation [ 22 ]. Over the past few years, several CP antennas have received more attention for use in MIMO antennas with mutual coupling reduction [ 23 , 24 , 25 , 26 , 27 ]. It was observed that the design contains a 2 × 2 array MIMO antenna [ 23 ] that achieves isolation of more than 33 dB between the ports with CP.…”

Section: Introductionmentioning

confidence: 99%

Quad-Port Circularly Polarized MIMO Antenna with Wide Axial Ratio

Kollipara

Peddakrishna

2022

Sensors

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This article studies a quad-port multi-input-multi-output (MIMO) circularly polarized antenna with good isolation properties. Using characteristic mode analysis (CMA), the first six distinct modes of the asymmetric square slot with an inverted L-strip are analyzed. In this study, modal parameter extraction is carried out for circular polarization (CP) radiation. A simple annular ring microstrip feed is excited to obtain broadband CP based on CMA. The single-unit feeding structure is replicated orthogonally four times to achieve a CP MIMO antenna. This antenna provides port isolation of more than 21 dB without the use of an additional decoupling element. The quad-port CP-MIMO antenna is simulated with a total dimension of 50 × 50 mm2. The antenna attains impedance matching (S11 < −10 dB) from 5.37 GHz to beyond 11 GHz with an axial ratio bandwidth (ARBW) of 4.65 GHz (5.61 GHz to 10.26 GHz). The peak realized gain of the MIMO antenna is measured at 5.69 dBi at 8.4 GHz. Additionally, the diversity performance parameters of the MIMO structure are computed. The advantages of the proposed structure have been evaluated by comparing it to previously reported MIMO structures. A prototype of the MIMO structure measurements was found to match the simulation results.

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Two Port Circularly Polarized MIMO Antenna Design and Investigation for 5G Communication Systems

Cited by 49 publications

References 38 publications

A Compact Dielectric Resonator Based Dual Port Circularly Polarised Mimo Antenna for Wideband Applications

A Compact Dielectric Resonator Based Dual Port Circularly Polarised Mimo Antenna for Wideband Applications

Designed Circularly Polarized Two-Port Microstrip MIMO Antenna for WLAN Applications

Quad-Port Circularly Polarized MIMO Antenna with Wide Axial Ratio

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