Quad-band two-port MIMO antenna serving for sub-7 GHz frequency with integrated circularly polarized bands

Sharma, Usha; Srivastava, Garima; Khandelwal, Mukesh Kumar

doi:10.1016/j.aeue.2022.154503

Cited by 12 publications

(3 citation statements)

References 18 publications

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“…below Eq. 5 [24] ECC mn = (6) where p m (θ, ϕ),p n (θ, ϕ) are the three-dimensional field patterns up on the excitation of m th and n th antenna, respectively, over the sphere, dΩ is the beam solid angle over the sphere. Ideally, uncorrelated antennas have zero ECC value.…”

Section: Envelope Correlation Coefficient (Ecc)mentioning

confidence: 99%

5G mm-Wave Technology: Innovative Design of Integrating mm-Wave Wideband Antenna With a Compact CP Microwave Antenna for Diverse Applications

Aparna,

Ram,

Kumar

2024

IEEE Access

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A compact dual-band antenna with a large frequency ratio and wideband mm-wave capabilities, incorporating multiple input multiple output (MIMO) technology, and designed for high isolation proposed for 5G applications. It contains a substrate-integrated waveguide (SIW) fractal Koch surface (FKS) slot antenna and a patch with L-shaped slots. A wideband performance is achieved by incorporating a novel FKS slot in SIW at Ka-band operation. An L-shaped slot on a coaxial-fed microstrip patch is analysed for achieving circular polarisation in a sub-7 GHz band. The suggested wideband antenna attains improved diversity performance within MIMO systems. A prototype of the proposed antenna is fabricated. Measured results coincide aptly with simulated data. The low-frequency antenna operates at 4.8 and 6.29 GHz with a gain of 4.35 and 3.8 dBi and radiation efficiency of 85 and 88%, respectively. The mm-wave antenna operates from 27.1 to 33.2 GHz, bandwidth of 20.3% with a gain of 8.5 dBi and a peak efficiency of 93%. Isolation of ≥ 50 and ≥ 20 dB is achieved at low and high frequencies, respectively. Envelope correlation coefficient (ECC) value ≤ 0.001 and channel capacity loss (CCL) 0.1 bits/sec/Hz. The proposed MIMO systems exhibit lower Bit Error Rate (BER) performance over the AWGN channel. The design shows significant potential for application in mm-wave massive MIMO base station applications.

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Section: Envelope Correlation Coefficient (Ecc)mentioning

confidence: 99%

5G mm-Wave Technology: Innovative Design of Integrating mm-Wave Wideband Antenna With a Compact CP Microwave Antenna for Diverse Applications

Aparna,

Ram,

Kumar

2024

IEEE Access

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“…The antenna exhibited diversity parameters such as ECC less than 0.01, a directive gain of 9.99 dB, radiation efficiency greater than 70%, and a gain 6.4 dBi. The paper [ 60 ] presented a novel-shaped, miniaturized quad-band dual-port MIMO antenna that operates well at four different frequencies in a sub-6 GHz configuration, namely 900 MHz, 1800 MHz, 3.5 GHz, and 5.5 GHz. Its C-shaped radiator, with a circular slot in the ground structure, enabled it to have wide bandwidth at some of the bands.…”

Section: Mimo Antenna Design Approaches For Fr-1 and Fr-2 Bandsmentioning

confidence: 99%

Advances in MIMO Antenna Design for 5G: A Comprehensive Review

Raj

Mishra

Kumar

et al. 2023

Sensors

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Multiple-input multiple-output (MIMO) technology has emerged as a highly promising solution for wireless communication, offering an opportunity to overcome the limitations of traffic capacity in high-speed broadband wireless network access. By utilizing multiple antennas at both the transmitting and receiving ends, the MIMO system enhances the efficiency and performance of wireless communication systems. This manuscript specifies a comprehensive review of MIMO antenna design approaches for fifth generation (5G) and beyond. With an introductory glimpse of cellular generation and the frequency spectrum for 5G, profound key enabling technologies for 5G mobile communication are presented. A detailed analysis of MIMO performance parameters in terms of envelope correlation coefficient (ECC), total active reflection coefficient (TARC), mean effective gain (MEG), and isolation is presented along with the advantages of MIMO technology over conventional SISO systems. MIMO is characterized and the performance is compared based on wideband/ultra-wideband, multiband/reconfigurable, circular polarized wideband/circular polarized ultra-wideband/circular polarized multiband, and reconfigurable categories. The design approaches of MIMO antennas for various 5G bands are discussed. It is subsequently enriched with the detailed studies of wideband (WB)/ultra-wideband (UWB), multiband, and circular polarized MIMO antennas with different design techniques. A good MIMO antenna system should be well decoupled among different ports to enhance its performance, and hence isolation among different ports is a crucial factor in designing high-performance MIMO antennas. A summary of design approaches with improved isolation is presented. The manuscript summarizes the various MIMO antenna design aspects for NR FR-1 (new radio frequency range) and NR FR-2, which will benefit researchers in the field of 5G and forthcoming cellular generations.

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“…The closely coupled multiple radiating elements create mutual coupling, and various methods such as parasitic elements [16], decoupling structures [17], EBG [18], and orthogonality have been reported in the literature to mitigate this issue [19]. Compact and high gain cup-shaped MIMO antenna [20] serving for wireless applications [21]. A compact MIMO antenna designed for wireless applications is presented [22], However, the design and fabrication of a compact cosecant-squared MIMO antenna [23] with high diversity performance is not possible because of limited space availability.…”

Section: Introductionmentioning

confidence: 99%

Dual-band inset-fed diamond-shaped patch MIMO antenna for wireless communication applications

Raj,

Ketavath

2024

Phys. Scr.

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A compact inset-fed rectangular-shaped multiple-input multiple-output (MIMO) patch antenna with a diamond-shaped slot is proposed for dual-band wireless communication applications. It comprises with two identical rectangular-shaped radiating elements. The proposed inset-fed diamond-shaped slot MIMO patch (IDSMP) antenna has overall dimensions is 20 x 40 x 1.6 mm³. To achieve low mutual coupling and good diversity performance, circular slots are etched on the ground plane and diamond slots are etched from the rectangular radiating patches. The edge-to-edge separation between the radiating elements is 4mm. The IDSMP antenna is resonating at 8.2GHz and 14.0GHz frequencies and a gain of 5.63dBi and 5.43dBi respective operating frequency. It achieves the wider dual bandwidths of 400MHz (8.00GHz to 8.40GHz) and 940MHz (13.63GHz to 14.57GHz) of respective frequencies. The IDSMP antenna MIMO parameters are presented for the envelope correlation coefficient is < 0.0, diversity gain is > 9.9, channel capacity loss is < 0.1 bits/sec/Hz, mean effective gain is investigated (-4dB < MEG < -7dB), and total active reflection coefficient is also obtained. The simulated and experimentally attained values are presented, and it is showing fine agreement.

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Quad-band two-port MIMO antenna serving for sub-7 GHz frequency with integrated circularly polarized bands

Cited by 12 publications

References 18 publications

5G mm-Wave Technology: Innovative Design of Integrating mm-Wave Wideband Antenna With a Compact CP Microwave Antenna for Diverse Applications

5G mm-Wave Technology: Innovative Design of Integrating mm-Wave Wideband Antenna With a Compact CP Microwave Antenna for Diverse Applications

Advances in MIMO Antenna Design for 5G: A Comprehensive Review

Dual-band inset-fed diamond-shaped patch MIMO antenna for wireless communication applications

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