The design of a LTE/MIMO antenna with high isolation using a decoupling network

Baek, Jisoo; Choi, Jaehoon

doi:10.1002/mop.28551

Cited by 21 publications

(19 citation statements)

References 10 publications

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“…The achieved gain is 22.45-0.2 dBi. 27 A T-shaped strip was placed in ground plane to disturb the ground current to increase the isolation. The ECC of 0.002, gain of 2 dBi were achieved along with the omnidirectional radiation patterns.…”

Section: Decoupling Network Approachmentioning

confidence: 99%

Multiport MIMO antennas with mutual coupling reduction techniques for modern wireless transreceive operations: A review

Chouhan

Panda

Gupta

et al. 2017

Int J RF Microw Comput Aided Eng

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The present technology fulfills the requirement of high data rate and high channel capacity using multiple input multiple output (MIMO) technology. The MIMO capacity of the system is increased linearly but due to the multiple antennas placed near to each other, problem of mutual coupling exists, which degrades the maximum achievable performance of the system. The problems of multipath propagation can be solved using MIMO system. The isolation improvement methods decrease the mutual coupling among antenna elements, and improve the gain and efficiency of the system. In this paper, decoupling network isolation approach, parasitic element approach, defected ground structure, Neutralization line, isolation improvement based on metamaterials, isolation improvement using PIN diode, varactor diode, and feeding structure have been incorporated, and their merits and demerits have been discussed. The effect of different permittivity material on antenna parameters has also included.

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Section: Decoupling Network Approachmentioning

confidence: 99%

Multiport MIMO antennas with mutual coupling reduction techniques for modern wireless transreceive operations: A review

Chouhan

Panda

Gupta

et al. 2017

Int J RF Microw Comput Aided Eng

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“…Various printed MIMO antennas designed for mobile terminals have been reported in recent years [2][3][4][5][6][7][8][9]. In [2], the proposed antenna resonates at multiple bands, which covers most 2G and 3G cellular frequency bands, some 4G LTE bands, WLAN, and Wimax bands.…”

Section: Introductionmentioning

confidence: 99%

A Compact MIMO Antenna with Inverted C-Shaped Ground Branches for Mobile Terminals

Yang

Cui

2016

International Journal of Antennas and Propagation

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A compact printed MIMO antenna for mobile terminals is presented. With two planar antenna elements, the −6 dB impedance bandwidth of 2.32 GHz (1.48–3.8 GHz) is obtained, which covers GSM 1800/1900, UMTS, WLAN, Wimax, S-band, and most of LTE bands. Each antenna element with a small occupation of 15 × 20 mm2consists of a driven strip and a shorted strip. Two inverted C-shaped ground branches are introduced between two elements to improve the isolation. The simulated results are studied and the measured results show that high isolation of more than 18 dB at the entire operating band is achieved. Meanwhile, the impedance performance is also improved by adding the branches. Furthermore, the measured radiation performances and envelope correlation coefficient also demonstrate that the proposed antenna could be a good candidate for mobile terminals.

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“…Significant research efforts have been reported to reduce the mutual coupling [6][7][8][9][10][11][12][13]. A T-shape slot impedance transformer added to both single and dual band PIFA's resulted in an isolation better than 20 dB [6].…”

Section: Introductionmentioning

confidence: 99%

“…A decoupling network consisting of two sections of a transmission line is placed at the center of the two antenna elements in an LTE MIMO system is recently proposed [12]. The isolation was enhanced by approximately 23 dB comparing to that without a decoupling network.…”

Section: Introductionmentioning

confidence: 99%

“…The isolation was enhanced by approximately 23 dB comparing to that without a decoupling network. The fabricated MIMO antenna satisfied a 6-dB return loss requirement and the envelope correlation coefficient is maintained below 0.4 over the LTE band 13 ranging from 746 to 787 MHz [12]. A decoupling element for enhancing the port isolation in MIMO antennas for triple (LTE) bands was presented in [13].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Compact High Isolation Meandered-Line Pifa Antenna for Lte (Band-Class-13) Handset Applications

Naser¹,

Sayidmarie²,

Aziz³

2016

PIER C

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MIMO systems have become an essential part in many communications networks and Long Term Evolution (4G) mobile communication systems. Mobile handsets using lower band of LTE (LTE-700 band) require antennas of reduced size that can be adapted to the limited space in the handset. This paper presents the design, optimization and implementation of two meandered-line PIFA antennas working as an MIMO system with high isolation for LTE-700 band mobile applications. To solve the problem of mutual coupling, a combination of decoupling arrangements was used to improve the isolation between the two antennas. The influences of various design parameters are investigated using the CST Microwave Studio Suite. A prototype of the proposed Meandered-line PIFA Antenna was fabricated and tested using vector network analyzer. Good agreement was found between the simulated and measured results. The fabricated MIMO antenna shows an isolation better than 12 dB and a −6 dB bandwidth of (75 MHz) in the frequency range from (720 MHz) to (795 MHz). The antenna has 1.94 dB gain, total efficiency of 85%, and volume of 110 × 65 × 1.6 mm 3 , that is (0.275 × 0.1625 × 0.004) in wavelengths.

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The design of a LTE/MIMO antenna with high isolation using a decoupling network

Cited by 21 publications

References 10 publications

Multiport MIMO antennas with mutual coupling reduction techniques for modern wireless transreceive operations: A review

Multiport MIMO antennas with mutual coupling reduction techniques for modern wireless transreceive operations: A review

A Compact MIMO Antenna with Inverted C-Shaped Ground Branches for Mobile Terminals

Compact High Isolation Meandered-Line Pifa Antenna for Lte (Band-Class-13) Handset Applications

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