Compact Planar Super-Wideband Monopole Antenna with Four Notched Bands

Kumar, Sachin; Lee, Gwan Hui; Kim, Donghwi; Haunan, Nashuha Syifa; Choi, Hyun Chul; Kim, Kang Wook

doi:10.3390/electronics9081204

Cited by 15 publications

(11 citation statements)

References 27 publications

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“…(D) shows the S11 versus frequency of the Super‐UWB MIMO antenna with respect to different length sizes of the ground plane. It can be found that the ground plane size influencing the impedance match, which is common case for UWB antennas 2,26–29 . In this design, length of the ground plane (Lg) of 11 mm has a good impedance match with S11 below −10 dB in the entire band of operation.…”

Section: Mimo Antenna Configuration and Analysismentioning

confidence: 96%

“…Ultra-wideband (UWB) technology has gained lots of concerns because of the high capacity and high data transmission rate at a low power density. Various designs have been proposed to achieve the UWB operation for printed antennas, such as circular monopoles, 1,2 triangular-shaped monopole, 3 Koch fractal geometry, 4 semi ellipsoid patch, 5 and square shape monopole. 6 Furthermore, some techniques have been used to provide the UWB operation, such as loading of shorting pins, 7 split-ring resonators, [8][9][10] and parasitic patches.…”

Section: Introductionmentioning

confidence: 99%

“…(A) having no decoupling structure; (B) only with T-shape stub; (C) with T-shape and two small arm shape stubs at 3, 10, 20, and 40 GHz; (D) S11 of Super-UWB MIMO antenna with different length size of ground plane. (D) shows the S11 versus frequency of the Super-UWB MIMO antenna with respect to different length sizes of the ground plane.It can be found that the ground plane size influencing the impedance match, which is common case for UWB antennas 2,[26][27][28][29]. In this design, length of the ground plane (Lg) of 11 mm has a good impedance match with S11 below −10 dB in the entire band of operation.…”

mentioning

confidence: 95%

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Super‐UWB MIMO antenna with high isolation

Rahim

Yang

Elobied

et al. 2022

Micro & Optical Tech Letters

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A 1 × 2 multiple-input multiple-output (MIMO) antenna with super-ultra wideband (super-UWB) operation and high isolation is proposed. The antenna element has an eye-shape radiator fed by a tapered shape feedline on the top side and a defected ground structure etched on the bottom ground plane. A high isolation between two radiators is achieved by introducing a T-shape and two small arm shape stubs at the center of the ground plane. The proposed design was verified by a fabricated prototype and measurement. The measured results show that the MIMO antenna achieves impedance bandwidth of 3 ~45 GHz, isolation of 21 dB, and a peak gain of 10.1 dBi. The envelope correlation coefficient is less than 0.02. The overall size of the design is only 0.26λ0L × 0.3λ0L (λ0L is the free space wavelength at 3 GHz).

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Section: Mimo Antenna Configuration and Analysismentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 95%

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Super‐UWB MIMO antenna with high isolation

Rahim

Yang

Elobied

et al. 2022

Micro & Optical Tech Letters

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“…To implement a planar broadband antenna, the configuration of the antenna's patch, its ground plane, and feeding mechanism are important [14]. Various techniques such as the truncated slot on the surface of the antennas or their ground plane have been demonstrated to expand their frequency band [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

MTM- and SIW-Inspired Bowtie Antenna Loaded with AMC for 5G mm-Wave Applications

Althuwayb

2021

International Journal of Antennas and Propagation

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This paper investigates a feasible configuration of slotted bowtie antenna based on MTM and SIW properties for 5G millimeter-wave applications. To realize the proposed slotted bowtie antenna in a compact dimension with high performances, the MTM and SIW concepts are implemented by applying the trapezoidal slots on the top surface of the antenna and metallic via holes through the substrate layer connecting the top surface to the ground plane. The antenna has been fed with a simple microstip-line which is connected to a waveguide-port. It is shown that the slotted bowtie antenna with a small dimension of 30 × 16 × 0.8 mm3 operates over a measured wideband of 32–34.6 GHz with the fractional bandwidth, average gain, and radiation efficiency of 7.8%, 3.2 dBi, and 50%, respectively. To improve the antenna's performance, the artificial magnetic conductor (AMC) properties have been employed on the ground plane by loading vertical and linear slots with various lengths. The AMC slots are aligned under the trapezoidal slots on the top surface to transfer the maximum electromagnetic signals to them for optimum radiation. The proposed method enlarges the antenna’s effective aperture area, keeping constant its physical dimensions. The proposed AMC-loaded antenna covers wider frequency range of 30–37 GHz in measurement, which corresponds to 21% fractional bandwidth. The average experimental gain and radiation efficiency have been increased to 5.5 dBi and 66.5%, respectively, which illustrate the effectiveness of the proposed AMC-loaded antenna. The results confirm that the proposed slotted bowtie antenna with advantages of compact dimension, wide bandwidth, high gain and efficiency, low profile, being cost-effective, simple design, and easy fabrication process, which makes it applicable for mass production, can be a good candidate for 5G millimeter-wave applications.

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“…SWB antennas find applications in data communication and distribution services (12.3-12.7 GHz), personal communication systems and digital data cellular systems, depending upon the starting frequency and a bandwidth ratio of 10:1 [13]. SWB antennas may cover all services, like Bluetooth (2.45 GHz), WiMax (3.5 and 5.8 GHz) [14], WiFi (5 GHz), the UWB spectrum (3.1-10.6 GHz), C-band (4-8 GHz), 5G (sub-6 GHz band) [15] and Ku-band (12)(13)(14)(15)(16)(17)(18) applications [16].…”

Section: Introductionmentioning

confidence: 99%

On the Design and Analysis of Compact Super-Wideband Quad Element Chiral MIMO Array for High Data Rate Applications

et al. 2020

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This paper presents a compact, bouquet-inspired, four-element MIMO array for super wideband (SWB) applications. The proposed unit element monopole antenna has compact geometry, and it is deployed by the fusion of an elliptical and circular-shaped radiator. The convoluted geometry and semi-elliptical ground plane, along with the narrow rectangular slit defected ground structure, provides a wide impedance bandwidth. The designed unit cell has the dimensions of 32 mm × 20 mm × 0.8 mm, operates from 2.9 to 30 GHz (S11 ≤ −10 dB) and provides a bandwidth dimension ratio (BDR) of 2894. The proposed low-profile diversity array without any decoupling structures consists of four orthogonally placed, uncorrelated antennas with an inter element spacing of 0.05 λ0, occupies an area of 57 mm × 57 mm and provides dual polarization. The performance metrics of the diversity array were validated for frequencies over ultra-wideband, using mutual coupling characteristics, envelope correlation coefficient (ECC) by far-field radiation, diversity gain (DG), total active reflection coefficient (TARC), channel capacity loss (CCL) and cumulative distribution function (CDF) analysis. The measured mutual coupling over the operating band was less than −18 dB, the ECC was less than 0.004 and the TARC was less than −15 dB, and a better CCL of ˂0.28 bits/s/Hz was achieved by the fabricated antenna.

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Compact Planar Super-Wideband Monopole Antenna with Four Notched Bands

Cited by 15 publications

References 27 publications

Super‐UWB MIMO antenna with high isolation

Super‐UWB MIMO antenna with high isolation

MTM- and SIW-Inspired Bowtie Antenna Loaded with AMC for 5G mm-Wave Applications

On the Design and Analysis of Compact Super-Wideband Quad Element Chiral MIMO Array for High Data Rate Applications

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