Reducing Mutual Coupling of Closely Spaced Microstrip MIMO Antennas for WLAN Application

Ouyang, Jun; Yang, Feng; Wang, Z M

doi:10.1109/lawp.2011.2140310

Cited by 241 publications

(138 citation statements)

References 10 publications

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“…Besides, EBG often involves via or two dielectric layers which increase the complexity and cost. Recently, simple and efficient methods are proposed in [8] and [9], but both of them are E-plane mutual coupling reduction.…”

Section: Introductionmentioning

confidence: 99%

Mutual Coupling Reduction between Very Closely Spaced Microstrip Antennas Using CPW Structure

Zhao

Zhang

et al. 2016

MATEC Web Conf.

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Abstract. An efficient H-plane mutual coupling reduction method is introduced for very closely placed dual-element microstrip antennas operating at 2.4GHz. A simple coplanar waveguide (CPW) structure is introduced in the ground, energy from one element is guided to another element, artificially generating new kind of mutual coupling current. By optimizing size of CPW structure to achieve purpose that new mutual coupling current cancel out with original existing mutual coupling. More than 36dB isolation (|S 21 |) is achieved with dual-element broadside array that distance is less than 0.024 0 O ( 0 O is free space wavelength).

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Section: Introductionmentioning

confidence: 99%

Mutual Coupling Reduction between Very Closely Spaced Microstrip Antennas Using CPW Structure

Zhao

Zhang

et al. 2016

MATEC Web Conf.

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“…However, various strategies have been applied to reduce the same. Some of the most common methods are moving the antennas with different orientations around the printed circuit board [3,4], use of defected ground structures [5,6], insertion of slots [7], electromagnetic band-gap structures [8][9][10], parasitic elements between the antennas [11], tilting the patch elements along the elevation [12], etc. As discussed in [3,4], best isolation is achieved when the antennas are spaced by the largest available distance on the PCB, but it results in increased size.…”

Section: Introductionmentioning

confidence: 99%

“…Ou Yang et al inserted a slot in the ground plane. This technique reduced the mutual coupling but also changed the radiation pattern at rear side [7]. Ebadi, in [8], placed 4 × 28 array of mushroom-like EBG structures over the radiating face of a 2 × 4 waveguide-slot-array antenna.…”

Section: Introductionmentioning

confidence: 99%

SRR Inspired Microstrip Patch Antenna Array

Arora¹,

Pattnaik²,

Baral³

2015

PIER C

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Abstract-This paper presents a novel approach for bandwidth enhancement and gain improvement of a microstrip patch antenna array for IEEE 802.16a 5.8 GHz Wi-MAX applications. A split ring resonator (SRR) has been designed to load the microstrip patch antenna array. The unloaded antenna array resonates at 5.8 GHz with gain of 4.3 dBi and bandwidth of 425 MHz, whereas when loaded with split ring resonator the gain approaches to 5.7 dBi and bandwidth increases to 610 MHz which corresponds to bandwidth enhancement of 3%. The electrical dimension of the patch is 0.23λ × 0.3λ.

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“…Many techniques to reduce the mutual coupling or to increase the port isolation of antenna arrays have been proposed in literatures [3][4][5][6][7][8][9][10][11][12]. The element isolation can be increased by properly arranging the antennas in different orientations, for example, an antenna cube [3].…”

Section: Introductionmentioning

confidence: 99%

“…The decoupling networks [6,7] can be designed to increase port isolation. Mutual coupling can also be reduced by introducing defected ground structure (DGS) [8,9], implementing electromagnetic bandgap structures (EBG) [10] or using neutralization lines [11,12]. Most of the studies presented in literature reveal a single operating band MIMO antenna system.…”

Section: Introductionmentioning

confidence: 99%

Compact Dual-Frequency Microstrip Antenna Array With Increased Isolation Using Neutralization Lines

Yu¹,

Yi²,

Liu³

et al. 2015

PIER Letters

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Abstract-An effective technique utilizing neutralization lines to increase the isolation of a compact two-element dual-frequency microstrip antenna array is proposed in this paper. Two neutralization lines connect the two elements at the edge of each radiating patch. The positions and lengths of the two neutralization lines are studied to get the best performance of element isolation. A prototype of the proposed design was fabricated to validate the results. The measured results agree well with the simulated ones. It is shown that an increase of about 25 dB at the lower frequency and that of 17 dB at the upper frequency in isolation between the two antennas have been achieved.

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Reducing Mutual Coupling of Closely Spaced Microstrip MIMO Antennas for WLAN Application

Cited by 241 publications

References 10 publications

Mutual Coupling Reduction between Very Closely Spaced Microstrip Antennas Using CPW Structure

Mutual Coupling Reduction between Very Closely Spaced Microstrip Antennas Using CPW Structure

SRR Inspired Microstrip Patch Antenna Array

Compact Dual-Frequency Microstrip Antenna Array With Increased Isolation Using Neutralization Lines

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