Design and analysis of UC-EBG on mutual coupling reduction

Abidin, Zuhairiah Zainal; Abd‐Alhameed, Raed A.; McEwan, N.J.; Jones, S. M. R.; Ramli, Khairun Nidzam; Alhaddad, A. G.

doi:10.1109/lapc.2009.5352476

Cited by 7 publications

(7 citation statements)

References 10 publications

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“…Many efforts have been made using electromagnetic band gap (EBG) structures [14][15][16][17][18] to suppress the unwanted surface propagating wave at a specific frequency, and thus minimize the inter-element coupling. These EBG structures provide substantial decoupling but suffer from large surface area, high cost of manufacturing and complicated design.…”

Section: Introductionmentioning

confidence: 99%

Compact and closely spaced tunable printed F‐slot multiple‐input–multiple‐output antenna system for portable wireless applications with efficient diversity

Elfergani

Hussaini

Rodriguez

et al. 2014

IET Science, Measurement & Technology

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In this work, miniaturized tunable two-antenna MIMO systems composed of printed F-slot shaped is developed to operate in the GPS, PCS, DCS and UMTS bands. The two-element MIMO antenna occupies a volume of 50 × 37.5 ×1.6 mm 3 , and is printed on an FR4 substrate. Initially, the frequency tunability of the MIMO antennas was verified by lumped capacitors with values between 0.75 to 2.75 pF to achieve a tuning range from 1.55 to 2.07GHz while the low mutual coupling between the radiators was accomplished by adding an I-shaped branch to a cut-away ground plane. The two antennas are then loaded with varactors to simultaneously achieve miniaturization and tunability. Simulation and measurement results demonstrate the successful implementation of a tunable MIMO with coupling reduction mechanism for a portable handheld wireless transceiver. The channel capacity of the proposed antenna is investigated and found to be close to that of an uncorrelated system with efficient diversity in which the mutual coupling across the full bandwidth was better than -13dB. Owing to the compact size and ease of manufacture, the proposed antennas can be a promising solution for adaptive MIMO systems in handheld devices.

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Section: Introductionmentioning

confidence: 99%

Compact and closely spaced tunable printed F‐slot multiple‐input–multiple‐output antenna system for portable wireless applications with efficient diversity

Elfergani

Hussaini

Rodriguez

et al. 2014

IET Science, Measurement & Technology

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“…A dual polarized ultra wideband Multiple-Input Multiple-Output antenna is divided by the two antenna elements which greatly minimize the overall dimension of the MIMO antenna system to reducing the isolation -32 dB in [24]. In [25], the EBG structure was proposed to reduce the effect of mutual coupling between terminals of the antennas. The range of frequency from 2.0 to 2.5 GHz the design resembles an impedance bandwidth of 22.22% maintain a mutual coupling of |S12|< -30 dB is observed.…”

Section: Introductionmentioning

confidence: 99%

Tri-band MIMO Antenna for WLAN, WiMAX and Defence System & Radio Astronomy Applications

Babu¹,

Anuradha

2018

AEM

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In this paper, an efficacious and impermeable undeviating MIMO consisting of 70 x 50 x 0.4 mm 3 is used for WLAN, defence system & radio astronomy and WiMAX applications. In place of the technique of parasitic elements to abandon the reactive coupling connection between the antennas we have used an alternate technique where a neutralizing line is connected between the two symmetrical radiating elements. In this technique four small slits of small size are etched on to the ground plane to reduce isolation (mutual coupling) between the antennas. This has resulted in the proposed antenna producing a good bandwidth at the three resonant frequencies of (3.2-3.7 GHz) for Wireless LAN, (5.1-5.6 GHz) WiMAX and (6.7-7.5 GHz) defence system & radio astronomy applications with |S11|< -10 dB and mutual coupling |S12|< -20 dB for the entire operating band. The simulation results and measured results demonstrate that tri-band MIMO antenna is more acceptable for the design in portable device applications. IntroductionThe multiple-input-multiple-output (MIMO) antenna is a popular antenna in recent times to exchange the data and enhance the rate of data transmission without additional power requirement and spectrum. This MIMO antenna reduces the capacity of the channel transmission and multipath fading. [4][5][6]. The MIMO antenna system uses especially in Ultra Wide Band (UWB) system provide high data rate of channel capacity. It is also used for multipath fading giving better immunity in comparison to that of narrow-band systems [7]. In [8], a MIMO antenna with portable devices in UWB applications consists of a band-notched characteristic with an overall size of 80 × 75 mm 2 to reduce the isolation -35 dB in the resonating band of frequencies at 5.2 GHZ is used. Two metal strips that consists of λ/3 and λ/4 of length are used on the antenna in [9], Y-shaped MIMO antenna with defected ground structure for the applications design of UWB antenna in [10], Isolation enhancement with the help of two defected ground structures in [11], By inserting meandered feeding lines are arrange to placing in between the UWB MIMO antenna gets dual-polarised in [12], By inserting parasitic elements between the antennas to minimize the isolation effect for mobile terminal applications in [13]. Printed MIMO-antenna system is using neutralization-line technique was proposed for wireless USB-dongle applications in [14] with an overall size of 85 × 65 mm 2 with resonant frequency 2.4 GHz. The design of UWB MIMO antennas for portable devices, with band notch characteristics, high isolation and meander feeding lines was proposed in [15][16][17][18]. The design of compact MIMO antennas for enhances isolation, improving the isolation performance, MIMO parameters, dual polarization consists in USB dongle applications and metamaterial concepts proposed in [19][20][21][22][23]. A dual polarized ultra wideband Multiple-Input Multiple-Output antenna is divided by the two antenna elements which greatly minimize the overall dimension of the MIMO antenna...

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“…This characteristic is very useful for antenna performance enhancement, especially in gain improving, front to back ratio increasing, surface waves suppressing, and mutual coupling reduction among elements [1][2][3][4] .…”

Section: Introductionmentioning

confidence: 99%

A novel compact his-EBG structure and its application in reduction of printed antenna mutual coupling

Yuan

Zhao

Liu

et al. 2011

J. Electron.(China)

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Anovel compact E shape High Impedance Surface (HIS) Electromagnetic Band-Gap (EBG) comprising Amended Minkowski Fractal Boundary (AMFB), Added Metal Strips (AMS), and metal plated via printed on a Rogers TMM 10i ( =9.8, =2.0 mm) r t ε substrate is presented. The first order AMFB and ABS are introduced for equivalent capacitance enhancement and miniaturization with effective space-filling characteristics. The dimension of lattice size is only 0 0.058 .λ The proposed structure exhibits a most compact characteristic about 35% size reduction as compared with conventional mushroom-like HIS-EBG, and better surface-wave decoupling of around 9 dB at the operating frequency band. Details of design parameters which affect the whole performance of certain band-gap are intensively investigated. A constructed prototype is potential candidate for antenna system performance enhancement.

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Design and analysis of UC-EBG on mutual coupling reduction

Cited by 7 publications

References 10 publications

Compact and closely spaced tunable printed F‐slot multiple‐input–multiple‐output antenna system for portable wireless applications with efficient diversity

Compact and closely spaced tunable printed F‐slot multiple‐input–multiple‐output antenna system for portable wireless applications with efficient diversity

Tri-band MIMO Antenna for WLAN, WiMAX and Defence System & Radio Astronomy Applications

A novel compact his-EBG structure and its application in reduction of printed antenna mutual coupling

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