A Compact CSRR-Enabled UWB Diversity Antenna

Khan, Muhammad Saeed; Capobianco, Antonio-Daniele; Asif, Sajid M.; Anagnostou, Dimitris E.; Shubair, Raed M.; Braaten, Benjamin D.

doi:10.1109/lawp.2016.2604843

Cited by 160 publications

(87 citation statements)

References 16 publications

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“…Initially, a stepped cut rectangular shape UWB patch radiator was designed [13], then it is modified to triangular shape with two-step cut in the lower edge of the radiator to achieve a wide-band matching. The proposed design is somewhat similar to [14].F-Shaped stub is inserted on the ground plane for reduction of mutual coupling and to increases the isolation between the antenna elements. The design of the proposed antenna and the design parameters are shown in Figure.1 and the antenna dimensions are mentioned in Table 1.…”

Section: IImentioning

confidence: 99%

Usage of Shaped Stubs for Mutual Coupling Reduction in A MIMO Antenna

Nerella¹

2019

IJRASET

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This paper discusses about the performance of a novel-shaped multi-input multi-output antenna (MIMO) which exhibits high-performance gain and low mutual coupling. The proposed design of the antenna is the introduction of radiating elements in the ground plane of the design, these radiating elements in turn help in producing high isolation between the MIMO antenna. The mentioned design of the antenna has a high diversity gain (DG>9.7) a very low mutual coupling (S21 < -60) an envelope correlation coefficient (ECC<0.07) and over the entire UWB frequencies high peak gains can be observed.

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Section: IImentioning

confidence: 99%

Usage of Shaped Stubs for Mutual Coupling Reduction in A MIMO Antenna

Nerella¹

2019

IJRASET

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“…The envelope correlation coefficient (ECC) is an important constraint to analyze the diversity characteristics of a wideband MIMO antenna [21][22][23]. It is evaluated with the help of S-parameters as given in [13,21]:…”

Section: Diversity Performancementioning

confidence: 99%

A Compact Mimo/Diversity Antenna With Wlan Band-Notch Characteristics for Portable Uwb Applications

Tripathi¹,

Mohan²,

Yadav³

2017

PIER C

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Abstract-In this paper, a compact multiple-input-multiple-output (MIMO)/diversity antenna with WLAN band notch characteristics, high isolation, and good ECC suitable for portable ultra-wideband (UWB) applications is presented. The proposed antenna has optimized dimensions of 29 mm × 38 mm. The antenna consists of two orthogonal circular monopoles with a 50 Ω microstrip feed line. In addition, to enhance the impedance bandwidth, a fractal slot, created using Minkowski fractal geometry, is introduced into the ground plane, which is located on the other side of the substrate, just below the feed line. Good isolation (≥ 21.5 dB) with a fractional bandwidth up to 220% is achieved between antenna elements by introducing two ground stubs and a rectangular slot in the ground plane. A band-notch characteristic in the WLAN band is obtained by etching an elliptical split-ring resonator (ESRR) in the radiator. Moreover, a diversity performance of the antenna in terms of ECC (< 0.01) and capacity loss (< 0.3 b/s/Hz) is performed. This paper offers, for the first time, a combined effect of fractal geometry and ESRR geometry in an antenna design. Finally, a comparison of the proposed antenna is performed with the UWB MIMO/diversity antennas existing in the literature. These results show the suitability of the presented antenna for portable UWB systems.

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“…Among these design methods, one of them is to apply a stepped structure, such as gradient or cambered shapes to obtain the UWB antenna [14]. These UWB-MIMO antennas with stepped slots on the ground have already been presented [15][16][17][18]. However, there is interference between the UWB and conventional narrow-band systems.…”

Section: Uwb-mimo Antennas Designmentioning

confidence: 99%

Very Compact 5.5 GHZ Band-Notched Uwb-Mimo Antennas With High Isolation

Liu¹,

Xi-liang²,

Zhang³

et al. 2017

PIER C

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Abstract-Two different types of band-notch UWB-MIMO antennas are proposed in this paper. The filtering effect can be achieved by integrating slot resonators to a UWB antenna. Both of the proposed antennas have very compact size and are smaller than most of the other band-notch UWB-MIMO antennas. The ultra-wideband is achieved by etching stepped slots on the ground. The band-notch characteristic can greatly reduce the potential interference between the UWB and WIMAX/WLAN system. Our proposed antennas can also possess a wide bandwidth from 3 GHz to 11 GHz with |S 11 | < −10 dB. Some effective measures have been taken and illustrated to reduce the isolation. Measurements demonstrate that the mutual coupling between the antenna elements is good enough for a MIMO system. Their stable radiation patterns are simulated, designed and measured successfully. The good performance and compact size make the antennas good candidates for UWB applications.

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A Compact CSRR-Enabled UWB Diversity Antenna

Cited by 160 publications

References 16 publications

Usage of Shaped Stubs for Mutual Coupling Reduction in A MIMO Antenna

Usage of Shaped Stubs for Mutual Coupling Reduction in A MIMO Antenna

A Compact Mimo/Diversity Antenna With Wlan Band-Notch Characteristics for Portable Uwb Applications

Very Compact 5.5 GHZ Band-Notched Uwb-Mimo Antennas With High Isolation

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