A CSRR Loaded MIMO Antenna System for ISM Band Operation

Sharawi, Mohammad S.; Khan, Muhammad U.; Numan, Ahmad B.; Aloi, Daniel N.

doi:10.1109/tap.2013.2263214

Cited by 145 publications

(97 citation statements)

References 20 publications

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“…Also, as stated before, in the design of a compact MIMO antenna system, it is necessary to use antenna miniaturization techniques that keep the antenna design simple while maintaining the diversity performance as high as possible although the antenna elements are placed close to each other. So far, many miniaturization techniques for MIMO antenna systems have been investigated for ISM band operation, including 2.45-and/or 5-GHz ISM bands [18][19][20][21].…”

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%

“…In [18], a 2 × 2 (four-element) MIMO patch antenna operating at 2.45-GHz ISM band and uses complementary split-ring resonator loaded on its ground plane for antenna miniaturization. As a result, the single-element antenna size is reduced by 76% with 100 × 50 × 0.8 mm 3 of a total size of the proposed MIMO antenna system.…”

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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“…The purpose of the stub between the two antenna elements is that it increases the electrical length between the two elements, thereby there is a shift in the resonant frequency of the second patch [37] in the lower side, i.e., (2.31 GHz). With the introduction of stub, the current distribution path is increased as a result of decrease in the resonance frequency.…”

Section: Resultsmentioning

confidence: 99%

“…Total Active Reflection Coefficient (TARC) is defined as the square root of the ratio of the sum of the power available at all the ports minus the radiated power to the total available power [37]. It is a real number between 0 and 1 [38].…”

Section: Mimo Performance Parametersmentioning

confidence: 99%

Compact 2×1 Mimo Antenna System for Lte Band

Malathi¹,

Thiripurasundari²

2017

PIER C

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Abstract-A compact 2 × 1 multiple input multiple output (MIMO) antenna system is designed to operate in the LTE band 40 (2.3-2.4) GHz. The proposed antenna consists of two circular patches fed using microstrip line. The antenna was initially designed to resonate at 5 GHz. Size reduction of 55.17% compared to conventional patch antenna is obtained after the inclusion of circular complementary split ring resonator (CSRR) in the ground plane. The resonating frequency was shifted to 2.34 GHz, thereby the board size is compact (50 × 25 × 1.6 mm 3 ). The designed antenna covers a bandwidth of 2.3 to 2.374 GHz with a maximum return loss of −27 dB at 2.34 GHz and isolation of −33.5 dB between the ports. The simulated correlation coefficient is approximately zero, and the total active reflection coefficient is 0.142 at the resonating frequency which are within the acceptable limits. The realized gain for the antenna is −8.9 dB.

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“…Fork-like stub and short strip are used to weaken the mutual coupling between elements. Four-element MIMO antenna systems are also developed [7][8][9]. In [7], the system is designed for a 2.45-GHz ISM band operation, and complementary split-ring resonator (CSRR) loaded on the ground plane is used for antenna miniaturization.…”

Section: Introductionmentioning

confidence: 99%

Compact Printed Four-Element Mimo Antenna System for Lte/Ism Operations

Yang¹,

Su²,

Li³

2015

PIER Letters

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Abstract-A novel four-element multiple-input-multiple-output (MIMO) antenna system for LTE 2300 and 2.45 GHz ISM applications is presented. The total size of the proposed MIMO antenna system is 34 mm × 18 mm, and the whole antenna system has a wide working bandwidth of 350 MHz (2.19-2.54 GHz). The measured isolation between antenna elements is higher than 15 dB with a close edgeto-edge separation of 0.03λ. Correlation coefficient of the MIMO antenna system is lower than 0.12, which can meet the requirements of 4G wireless systems.

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A CSRR Loaded MIMO Antenna System for ISM Band Operation

Cited by 145 publications

References 20 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

Compact 2×1 Mimo Antenna System for Lte Band

Compact Printed Four-Element Mimo Antenna System for Lte/Ism Operations

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