CSRR‐loaded T‐shaped MIMO antenna for 5G cellular networks and vehicular communications

Rao, Manikonda Venkateswara; Madhav, B. T. P.; Krishna, Jagupilla; Yalavarthi, Usha Devi; Anilkumar, T.; Nadh, B. Prudhvi

doi:10.1002/mmce.21799

Cited by 45 publications

(22 citation statements)

References 26 publications

(46 reference statements)

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“…When MIMO antennas are applied at the transmitting and receiving ends, mutual interference occurs between the antenna elements [3]. In order to work efficiently, the antenna elements must be isolated from each other [4]. Therefore, it is extremely important to reduce mutual coupling between the antenna elements in MIMO antenna design.…”

Section: Introductionmentioning

confidence: 99%

A MIMO Antenna with High Gain and Enhanced Isolation for WLAN Applications

et al. 2022

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In this paper, a novel two-port dual-band multiple-input-multiple-output (MIMO) antenna with enhanced isolation and high gain is presented. The presented antenna is composed of a symmetrical ground element and two identical antenna radiating elements. At the bottom of the substrate, the ground part is applied to strengthen the isolation performance of the designed MIMO antenna. The measured −10 dB bandwidth according to the input reflection coefficient S11 are 650 MHz (2.25–2.9 GHz) and 980 MHz (5.05–6.03 GHz), which are in strong agreement with the 2.4 GHz frequency band (2.4–2.4835 GHz) and the 5 GHz frequency band (5.15–5.85 GHz) of wireless local area network (WLAN) applications. The measured S21 at both the lower and the higher frequency operation bands are less than −19.3 dB. In the operating frequency bands, the measured gain is from 1.5 dBi to 3.8 dBi. The measured results show that the presented MIMO antenna is a good candidate for WLAN applications.

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Section: Introductionmentioning

confidence: 99%

A MIMO Antenna with High Gain and Enhanced Isolation for WLAN Applications

et al. 2022

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“…Many researchers have developed various antenna models for vehicular communications [1][2][3][4][5][6][7][8][9][10][11][12][13] with different substrates and structures like Liquid Crystal Polymer (LCP) based conformal and reconfigurable microstrip patch antennas. MIMO antennas are also developed for different wireless applications like vehicular and 5G in [14][15][16][17][18]. In this paper, a novel and compact four-element MIMO antenna is proposed with dual operating bands for DSRC, WLAN, and X-band applications.…”

Section: Introductionmentioning

confidence: 99%

Four Element Square Patch Mimo Antenna for Dsrc, Wlan, and X-Band Applications

Yalavarthi¹,

Koosam²,

Venna³

et al. 2021

PIER M

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A novel 4-element Multi-Input Multi-Output (MIMO) array antenna is proposed for Dedicated Short Range Communications (DSRC), Wireless Local Area Network (WLAN), and X-band applications. The proposed antenna is a microstrip antenna that consists of a simple square patch as radiating element with a defected ground structure (DGS). Dimensions of the proposed antenna are very compact with size 40 × 48 × 0.8 mm 3 . It operates from 5.6-6.1 GHz (DSRC/WLAN) and 8.7-10.8 GHz (X-band) with impedance bandwidths (S 11 <= −10 dB) of 500 MHz and 2.1 GHz, respectively. The isolation between elements of MIMO is also greater than 25 dB in the operating bands. Antenna performance parameters are investigated at 5.9 GHz and 10.5 GHz center frequencies and computersimulated, and experimentally measured characteristics are found to be satisfactory. A peak gain of 4.8 dB is achieved, and radiation efficiency is also greater than 75% in operating bands. Envelope Correlation Coefficient (ECC) is less than 0.05, and Diversity Gain (DG) is very close to 10. Group delay among the MIMO elements is below 2.7 ns, and Channel Capacity Loss CCL is also below 0.4 bits/sec/Hz. Therefore, the proposed 4-element MIMO antenna is suggestible for DSRC/WLAN and X-band applications.

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“…Hence, various techniques have been implemented to optimize this factor in the literature. [13][14][15][16][17][18][19] In Reference13, a decoupling stub is inserted between elements to decrease the mutual coupling to a level À55 dB over the desired band for UWB-MIMO applications. A modified EBG structure has been reported in Reference14 to improve the isolation of more than 17.5 dB for quad element band-notched UWB-MIMO radiator in the frequency band of 3.0-16.2 GHz.…”

Section: Introductionmentioning

confidence: 99%

Conformal MIMO circular polarization diversity antenna for V2X applications

Virothu

Anuradha

2021

Int J RF Mic Comp-Aid Eng

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A 2 Â 1 orthogonal circularly polarized multiple-input-multiple-output (MIMO) antenna is presented at wireless 5G (3.3-4.2 GHz) and 5.9 GHz vehicle-to-everything (V2X) application bands. The proposed antenna obtains circular polarization with the incorporation of inserting Γ-shaped stripline to the ground and asymmetric ground structure. The MIMO antenna exhibits impedance bandwidth of 3.17 GHz in the band of 3.15-6.32 GHz, and 3 dB axial ratio bandwidth of 3.3 GHz in the band of 2.85-6.15 GHz. The design radiates RHCP and LHCP in both directions due to the arrangement of MIMO unit cells in a mirrored fashion. The inter-port isolation is greater than 20 dB and achieves up to 30 dB within the required band due to orthogonal circular polarizations. A prototype is fabricated on a flexible polyimide substrate and achieved envelope correlation coefficient lower than 0.02, diversity gain almost 10 dB, and channel capacity loss of less than 0.12 b/s/Hz in the operating band. To analyze the effect of the car body on the radiation characteristics, the MIMO antenna is sited on the car side view mirror and roof-top using the Ansys savant tool. These investigations confirm that the antenna is suitable for wireless and vehicular safety applications.

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CSRR‐loaded T‐shaped MIMO antenna for 5G cellular networks and vehicular communications

Cited by 45 publications

References 26 publications

A MIMO Antenna with High Gain and Enhanced Isolation for WLAN Applications

A MIMO Antenna with High Gain and Enhanced Isolation for WLAN Applications

Four Element Square Patch Mimo Antenna for Dsrc, Wlan, and X-Band Applications

Conformal MIMO circular polarization diversity antenna for V2X applications

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