Printed MIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications

Su, Saou‐Wen; Lee, Cheng‐Tse; Chang, Fa‐Shian

doi:10.1109/tap.2011.2173450

Cited by 375 publications

(230 citation statements)

References 19 publications

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“…During the recent years, numerous designs of MIMO antenna systems have been investigated for wireless applications and are mainly focused on sufficiently minimizing the effect of mutual coupling between radiating elements and presenting different convenient techniques in order to implement an efficient and compact MIMO system [6][7][8][9][10][11][12][13][14]. These systems were developed for various bands including single and/or dual band, GSM band, LTE band, WiMAX band, and two ISM bands covering 2.45 GHz and/or 5 GHz band.…”

Section: Introductionmentioning

confidence: 99%

“…These systems were developed for various bands including single and/or dual band, GSM band, LTE band, WiMAX band, and two ISM bands covering 2.45 GHz and/or 5 GHz band. The proposed methods for reducing mutual coupling included employing a simple microstrip patch element in between the antennas [6], using parasitic coupling elements between the radiators [7,8], connecting the elements employing a neutralization line [9,10], introducing resonators between the antenna elements [11], placing the antenna elements in an orthogonal configuration [12,13] and metamaterial-based antennas [14]. Alternatively, Electromagnetic Band Gap (EBG) cells [15] and partially extended ground [PEG] plane [16] may be used to eliminate coupling.…”

Section: Introductionmentioning

confidence: 99%

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Design of a Compact Orthogonal Broadband Printed Mimo Antennas for 5-GHZ Ism Band Operation

Naji¹

2015

PIER B

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Abstract-This paper presents a new design approach for compact orthogonal broadband printed multiple-input multiple-output (MIMO) antennas based on a coplanar waveguide (CPW)-fed hexagonalring monopole antenna (HRMA) element. The design procedure of the basic radiating element is initiated from a stripline (SL)-fed circular monopole antenna (CMA). Then various antennas involved in the design evolution process are introduced to attain a compact CPW-fed HRMA. This basic antenna element has a compact size of 13 × 10 mm 2 , 50% smaller than SL-fed CMA, and a prototype of this antenna is built and tested. Based on HRMA element, compact two-and four-element MIMO antenna systems are designed, fabricated and experimentally demonstrated for 5-GHz ISM band operation. The MIMO antenna systems use orthogonally configured of identical closely spaced HRMA elements, with CPW-fed printed on one side of the substrate to achieve good isolation. Design simulation is carried out with the aid of Computer Simulation Technology Microwave Studio (CST MWS) and confirmed with High Frequency Structure Simulator (HFSS). The experimental results are in close agreement with the simulated ones, which validates the design principle. Based on experimental results, the two MIMO antenna systems have an impedance bandwidth of more than 2 GHz, good isolation of less than 15 dB, and a low envelope correlation coefficient of better than −26 dB across the frequency band of (4-6 GHz), which are suitable for 5-GHz MIMO applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Design of a Compact Orthogonal Broadband Printed Mimo Antennas for 5-GHZ Ism Band Operation

Naji¹

2015

PIER B

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“…Since the diversity performance of MIMO antennas is directly related to the minimum coupling between individual antenna elements, the isolation between the elements of the proposed antenna was measured. It is defined as the square roots of the ratio of the sum of the power available at all the ports minus the radiated power to the total available power [11]. This mainly deals with the radiation pattern of the antenna [12] which is defined by Equation (4) as…”

Section: Resultsmentioning

confidence: 99%

Bandwidth Enhanced MIMO antenna for LTE bands using Split Ring Resonators and Stubs

Malathi

Thiripurasundari

2018

AEM

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In this work, an array of circular patch antenna loaded with a partial split ring and a pair of stubs each with same dimensions, on each of the antenna is designed to operate in the LTE band with wide bandwidth. The split ring not only accounts for a newer operating band, but also tend to reduce the isolation and the stubs tends to increase the bandwidth which results in change by 44.92 % compared to array of antennas without split rings. It has a compact substrate dimensions of 55 × 30 × 0.8 mm 3 and ground of 55 × 9 mm 2 . The proposed antenna is simulated using high frequency structural simulator (HFSS) and fabricated. The measured results are in compliance with the simulated results. The proposed antenna find applications in

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“…Parasitic elements were also inserted between the elements to improve the isolation at a given frequency [8]. Decoupling can also be achieved by inserting a neutralization line into antenna elements [9]. Dual polarization is another efficient method to realize decoupling and enhance reliability in the wireless communication system [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Compact Wlan Band-Notched Printed Ultrawideband Mimo Antenna With Polarization Diversity

Femina¹,

Mishra²

2016

PIER C

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Abstract-A novel uniplanar compact WLAN band-notched printed ultra wideband (UWB) multiple-input multiple-output (MIMO) antenna with dual polarization for high data-rate wireless communication is proposed. The antenna consists of two CPW-fed floral radiating elements along with a decoupling structure to ensure high isolation. The band notch at the WLAN frequency band is achieved by etching one single U-shaped slot on each antenna element. Results show that the proposed antenna gives impedance bandwidth from 2.7 GHz to 10.9 GHz with notched frequency band from 5.1 GHz to 5.9 GHz. The proposed antenna provides nearly omnidirectional radiation pattern, low envelope correction coefficient [ECC], moderate gain, efficiency, fidelity factor and pattern stability factor [PSF]. Furthermore, diversity characteristics such as mean effective gain [MEG] and diversity gain [DG] are also studied. Moreover, the time-domain analysis displays minimum dispersion to the radiated pulse. All these features make the proposed antenna a good candidate for future high data-rate wireless communication systems with polarization-diversity operation, where the challenge of multipath fading is a major concern.

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Printed MIMO-Antenna System Using Neutralization-Line Technique for Wireless USB-Dongle Applications

Cited by 375 publications

References 19 publications

Design of a Compact Orthogonal Broadband Printed Mimo Antennas for 5-GHZ Ism Band Operation

Design of a Compact Orthogonal Broadband Printed Mimo Antennas for 5-GHZ Ism Band Operation

Bandwidth Enhanced MIMO antenna for LTE bands using Split Ring Resonators and Stubs

Compact Wlan Band-Notched Printed Ultrawideband Mimo Antenna With Polarization Diversity

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