A Compact Band-Notched Ultra-Wideband Spatial Diversity Antenna

Zhao, Hui; Zhang, Fu‐Shun; Zhang, Xiaokuan; Wang, Chunyang

doi:10.2528/pierc14042101

Cited by 11 publications

(18 citation statements)

References 30 publications

(54 reference statements)

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“…Nonetheless, unwanted interference from Wireless Local Area Networks (WLAN), i.e., IEEE 802.11 (5.8 GHz), may cause malfunctioning or weak precision in any UWB MIMO transceiver for the UWB application such as sensor data collection, precision locating, or tracking applications [1][2][3][4][5]. Therefore, MIMO antenna designers and researchers have proposed band-reject UWB MIMO antennas to mitigate WLAN interference [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Ultra-Compact Reconfigurable Band Reject UWB MIMO Antenna with Four Radiators

et al. 2020

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A compact reconfigurable UWB MIMO antenna with four radiators that accomplish on-demand band rejection from 4.9 to 6.3 GHz is presented. An LC stub is connected to the ground plane by activating the PIN diode for each radiator. Two radiators are placed perpendicular to each other to exploit the polarization diversity on a compact 25 × 50 mm 2 FR4 laminate. Two additional radiators are then fixed obliquely on the same laminate (without increasing size) in angular configuration at ±45 ∘ perpendicular to the first two planar radiators still exploiting polarization diversity. The design is validated by prototyping and comparing the results with the simulated ones. On demand band rejection through the use of PIN diodes, wide impedance matching (2–12 GHz), high isolation amongst the radiators, compactness achieved by angular placement of the radiators, low gain variation over the entire bandwidth, band rejection control achieved by adjusting the gap between stub and ground plane, and low TARC values makes the proposed design very suitable for commercial handheld devices (i.e., Huawei E5785 and Netgear 815S housings). The proposed configuration of the UWB MIMO radiators has been investigated first time as per authors’ knowledge.

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Section: Introductionmentioning

confidence: 99%

Ultra-Compact Reconfigurable Band Reject UWB MIMO Antenna with Four Radiators

et al. 2020

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“…Many MIMO antennas which require both compact size and low mutual coupling for UWB applications have been proposed so far [4][5][6][7][8][9][10][11][12][13][14]. However, decreasing the size of the MIMO antenna would bring about great mutual coupling; therefore, various structures have been created to reduce the mutual coupling of MIMO antennas [4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…However, some antennas like [4][5][6][7][8][9] do not design band-rejected structures to stop the interference. To deal with this problem, some antennas with band-rejected function have been discussed [10][11][12][13][14]. In [10], two branches are added on the decoupling structure to obtain dual bandnotched function.…”

Section: Introductionmentioning

confidence: 99%

“…In [10], two branches are added on the decoupling structure to obtain dual bandnotched function. In [11,12], by etching a pair of L-shaped slits on the ground, the rejected band at 5.5 GHz is achieved in the proposed MIMO antenna design. By introducing two split ring resonator (SRR) slots on the ground, the band-rejected function is obtained in [13].…”

Section: Introductionmentioning

confidence: 99%

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A Compact Dual Band-Rejected Mimo Vivaldi Antenna for Uwb Wireless Applications

Li¹,

Zhang²,

Cao³

et al. 2019

PIER Letters

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In this paper, a novel compact dual band-rejected ultra-wideband (UWB) multiple-input multiple-output (MIMO) Vivaldi antenna is introduced and fabricated. The MIMO antenna with a small size of 26 × 28 mm 2 contains a modified ground plane and two microstrip-slot balun structures.A T-slot is etched on the ground to achieve miniaturization and high isolation, and the simulated |S 11 | of −10 dB impedance bandwidth is from 2.7 to 10.9 GHz. An isolation of better than 15 dB is acquired over the UWB range (3.1-10.6 GHz). Meanwhile, by introducing two split ring resonator (SRR) slits on the ground and adding two split ring resonators (SRRs) close to the microstrip-slot balun structures, dual band rejection at both WLAN (5.15-5.85 GHz) and IEEE INSAT/Super-Extended C-band (6.7-7.1 GHz) can be achieved. The MIMO antenna has high gain and very low envelop correlation coefficient (ECC < 0.02). The measured results agree with the simulated ones, demonstrating that the UWB MIMO Vivaldi antenna is suitable for the UWB diversity applications.

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“…The antenna array proposed in this paper is compared to four different types of UWB antenna arrays reported in the literature [27][28][29][30]. Given the applications envisioned in this paper, the comparative study is emphasized on size, thickness, flexibility, fabrication complexity, isolation performance, correlation coefficient, diversity gain, and multiplexing efficiency.…”

Section: Comparative Studymentioning

confidence: 99%

An Uwb Antenna Array for Flexible Iot Wireless Systems

Raad¹

2018

PIER

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Abstract-In this paper a flexible compact antenna array operating in the 3.213 GHz which covers the standard UltraWide Band (UWB) frequency range is presented. The design is aimed at integration within Multiple Input Multiple Output (MIMO) based flexible electronics for Internet of Things (IoT) applications. The proposed antenna is printed on a single side of a 50.8 µm Kapton Polyimide substrate and consists of two half-elliptical shaped radiating elements fed by two Coplanar Waveguide (CPW) structures. The simulated and measured results show that the proposed antenna array achieves a broad impedance bandwidth with reasonable isolation performance (S 12 < −23 dB) across the operating bandwidth. Furthermore, the proposed antenna exhibits a low susceptibility to performance degradation caused by the effect of bending. The system's isolation performance along with its flexible and thin profile suggests that the proposed antenna is suitable for integration within flexible Internet of Things (IoT) wireless systems.

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A Compact Band-Notched Ultra-Wideband Spatial Diversity Antenna

Cited by 11 publications

References 30 publications

Ultra-Compact Reconfigurable Band Reject UWB MIMO Antenna with Four Radiators

Ultra-Compact Reconfigurable Band Reject UWB MIMO Antenna with Four Radiators

A Compact Dual Band-Rejected Mimo Vivaldi Antenna for Uwb Wireless Applications

An Uwb Antenna Array for Flexible Iot Wireless Systems

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