CPW fed quasi complementary super-wideband MIMO antenna

Lodhi, Deepshikha; Singhal, Sarthak

doi:10.1007/s11082-022-04226-1

Cited by 3 publications

(2 citation statements)

References 42 publications

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“…Since each antenna element is the same, their equivalent circuit is also the same as in Fig. 8 (a) [23]. However, considering the coupling effect between the patch elements, the parallel connection of inductors and capacitors needs to be CPW Compact Ultra-Wideband MIMO Antenna for 5G Millimeter Wave Application…”

Section: Equivalent Circuit Modelingmentioning

confidence: 99%

CPW Compact Ultra-Wideband MIMO Antenna for 5G Millimeter Wave Applications

Chang

Wang

et al. 2022

Preprint

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This paper presents the design and development of a multiple-inputmultiple-output (MIMO) compact antenna with coplanar waveguide (CPW) feed for 5G millimeter-wave applications. It can be operated in the C (4-8 GHz), Ku (12-18 GHz), K (18-26.5 GHz), and Ka (27-40 GHz) with full coverage of the millimeter wave 5G New Radio (NR) n257/n258/n261 bands.The proposed antenna is designed with planar geometry with an element size of 14 mm×19 mm, which makes it compact and achieves a wide operating bandwidth. By the arrangement of orthogonal rotation, the 4-port structure is formed to realize good polarization diversity. The result shows that the MIMO antenna has a stable radiation pattern at the low-frequency band and offers an ultra-wide bandwidth (UWB) of 5-39 GHz (154.5%), isolation of more than 19 dB, and a total footprint of 40 mm×40 mm. ECC<0.04, DG>9.99, CCL<0.4, and MEG<-5 dB have been achieved. The prototype of MIMO is fabricated and measured, and the measured results are in good agreement with the simulation ones. Moreover, the operating mechanism is analyzed by equivalent RLC circuit and surface current distribution. This antenna can be used in a variety of ultra-wideband applications.

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Section: Equivalent Circuit Modelingmentioning

confidence: 99%

CPW Compact Ultra-Wideband MIMO Antenna for 5G Millimeter Wave Applications

Chang

Wang

et al. 2022

Preprint

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show abstract

“…Additionally, they implemented open-ended slots to minimize mutual coupling between adjacent antenna elements. A defected co-planar waveguide fed shovel antenna with super wideband MIMO [10] covered the operating frequency range from 4.1 to 60 GHz with a notch band of 6.8 to 7.8 GHz. Koch snowflake fractal in consolidation with a CSRR proposed in [11] realized a fractional bandwidth of 25.08%.…”

Section: Introductionmentioning

confidence: 99%

Low-Profile CO-CSRR and EBG Loaded Tri-Quarter Circular Patch EWB MIMO Antenna With Multiple Notch Bands

Roy

2024

IEEE Open J. Antennas Propag.

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A novel and miniaturized design featuring a Co-directional Complementary Split Ring Resonator (CO-CSRR) loaded Tri-Quarter Circular (TQC) Extremely Wideband (EWB) Multiple-Input Multiple-Output (MIMO) antenna has been developed and simulated. This proposed antenna demonstrates high isolation and exhibits multiple notch characteristics. The configuration consists of two TQC patches positioned adjacent to each other with a common partial ground plane (PGP), achieving an Extremely Wideband (EWB) capability of 85.8 GHz. Additionally, two elliptical CO-CSRRs are etched on the TQC elements to introduce dual-notch characteristics in the X-band and Ku-band. The integration of two Electromagnetic Band Gap (EBG) structures on either side of the microstrip feedline facilitates the creation of notch frequency ranges at Q-band downlink and V-band. To enhance isolation, a slotted meandering strip is extruded to the PGP. This design primarily focuses on achieving EWB with a compact size and reduced complexity. The overall physical volume of the proposed design is 2.74 λ o × 4.83 λ o × 0.25 λ o , achieved a maximum |S 11 | of 30.82 dB at a frequency of 17.58 GHz. The antenna's performance has been thoroughly evaluated in terms of radiation pattern, isolation, Total Active Reflection Coefficient (TARC), Envelope Correlation Coefficient (ECC), Diversity Gain (DG), Gain, and Efficiency. Stable gain and Group Delay (GD) of less than 0.2 ns for the entire Extremely Wideband (EWB) range have been achieved, with lower gain observed at the notch bands.

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CPW fed shovel shaped super wideband MIMO antenna for 5G applications

Lodhi

Singhal

2023

AEU - International Journal of Electronics and Communications

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CPW fed quasi complementary super-wideband MIMO antenna

Cited by 3 publications

References 42 publications

CPW Compact Ultra-Wideband MIMO Antenna for 5G Millimeter Wave Applications

CPW Compact Ultra-Wideband MIMO Antenna for 5G Millimeter Wave Applications

Low-Profile CO-CSRR and EBG Loaded Tri-Quarter Circular Patch EWB MIMO Antenna With Multiple Notch Bands

CPW fed shovel shaped super wideband MIMO antenna for 5G applications

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