Compact Ultrawideband MIMO Antenna With Half-Slot Structure

Tao, Junwu; Feng, Quanyuan

doi:10.1109/lawp.2016.2604344

Cited by 99 publications

(64 citation statements)

References 11 publications

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“…A lot of work has been done in antennas for UWB communication . The congestion of frequency band spectrums has become a serious concern since sub‐bands like WLAN (4.94‐5.92 GHz) and X‐band (8‐12 GHz) lies inside UWB region.…”

Section: Introductionmentioning

confidence: 99%

“…5 A lot of work has been done in antennas for UWB communication. [6][7][8] The congestion of frequency band spectrums has become a serious concern since sub-bands like WLAN (4.94-5.92 GHz) and X-band (8)(9)(10)(11)(12) GHz) lies inside UWB region. Due to the presence of these bands inside UWB region, interference occurs between UWB systems and other sub-bands.…”

Section: Introductionmentioning

confidence: 99%

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Stub loaded, low profile UWB antenna with independently controllable notch‐bands

Awan

Zaidi

Hussain

et al. 2019

Micro & Optical Tech Letters

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The design and realization of a compact coplanar waveguide (CPW) fed ultrawideband (UWB) antenna having dual‐notched bands is presented in this article. The antenna possesses on demand notch bands at 4 to 5.78 GHz and 6.83 to 8.22 GHz. The presented design consists of a single iterated octagonal patch antenna designed on cheap FR4 substrate. The stub is utilized to achieve a wide impedance matching of 7.33 GHz (3.2‐10.5 GHz), while the notch‐bands are realized using split ring circular slots. These notch‐bands are controlled independently without affecting the overall performance of the antenna. Simulated and measured results showed that the antenna offers excellent performance with an overall size of 20 × 23 mm2, high efficiency of more than 90%, and a nearly omnidirectional maximum gain of 4.8 dBi. The performance of the proposed antenna is better than the antennas presented in the literature in term of size, stable gain, and independently controllable notch bands. Besides these advantages, the compact size allows the antenna to integrate into small devices easily and help manufacturers to produce a massive number of antennas comfortably.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Stub loaded, low profile UWB antenna with independently controllable notch‐bands

Awan

Zaidi

Hussain

et al. 2019

Micro & Optical Tech Letters

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“…UWB is utilized in Wireless Personal Area Networks (WPAN), computer peripherals, mobile computers, imaging devices and several other applications [1]. On the other hand, UWB Multiple Input Multiple Output (MIMO) systems have been proven to further increase the channel capacity as compared to conventional band-limited MIMO systems [2]. To minimize the performance deteriorating effects of multipath fading in indoor UWB wireless communication systems diversity antenna arrays have been shown to be a practical solution, given that the radiating elements of such arrays are maintained highly uncorrelated [3].…”

Section: Introductionmentioning

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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“…Various designs have been proposed in the recent years to suppress the effects of mutual coupling in UWB MIMO antennas [5][6][7][8][9][10], which are composed of using tree-like structure on the ground [5], placing radiators perpendicular to each other and adding two long protruding stubs to ground [6], adopting wideband neutralization line [7], introducing a T-shaped slot and line slot on the ground [8], using a modified ground structure along with a T-shaped slot on the ground [9], or adopting a Yshaped slot on the T-shaped protruded ground [10]. However, the antenna designs in [5][6][7][8][9][10] do not offer band-notch properties.…”

Section: Introductionmentioning

confidence: 99%

A Very Compact Mimo Antenna With Triple Band-Notch Function for Portable Uwb Systems

Jetti¹,

Nandanavanam²

2018

PIER C

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Abstract-A very compact triple band-notched multiple input multiple output antenna (MIMO) for ultra-wideband (UWB) communications is fabricated on an FR4 dielectric substrate having the overall size of 18 × 21 × 0.8 mm 3 . The proposed antenna consists of two rectangular metal monopoles which are excited by 50-Ω microstrip lines on top of a substrate, and a common protrude ground is at the bottom. To achieve low mutual coupling between radiating elements, a T-shaped stub is protruded from the ground plane. By etching two C-shaped slots on the radiating patches, band-notched functions at 5.15-6 GHz and 7.8-8.4 GHz are obtained. The third notch band from 3.3-3.7 GHz is realized by adding Ushaped metal strips to the ground. The measured and simulated results demonstrate that the proposed antenna offers good impedance bandwidth of |S 11 | ≤ −10 dB from 2.8-12.2 GHz covering whole UWB band except at the designed notch bands, while giving less mutual coupling (|S 21 |) of lower than −25 dB in the whole UWB band. The measured envelope correlation coefficient (ECC < 0.013), nearly constant gain and stable radiation patterns show that the proposed MIMO antenna is an appropriate candidate for portable UWB systems.

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Compact Ultrawideband MIMO Antenna With Half-Slot Structure

Cited by 99 publications

References 11 publications

Stub loaded, low profile UWB antenna with independently controllable notch‐bands

Stub loaded, low profile UWB antenna with independently controllable notch‐bands

An Uwb Antenna Array for Flexible Iot Wireless Systems

A Very Compact Mimo Antenna With Triple Band-Notch Function for Portable Uwb Systems

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