Printed Meander Line Mimo Antenna Integrated With Air Gap, DGS and Ris: A Low Mutual Coupling Design for Lte Applications

Kamal, Shahanawaz; Chaudhari, Anjali

doi:10.2528/pierc16112008

Cited by 21 publications

(11 citation statements)

References 29 publications

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“…Nevertheless, the closely packed antennas could be strongly coupled to each other due to increased radiation interaction. Numerous techniques have been explored to reduce mutual coupling such as the defected ground structure (DGS) [5], [6], electromagnetic band gap (EBG) structure [7], [8], microstrip stubs [9], shorting pins [10], and parasitic elements [11], [12], etc. These techniques are mostly reported to reduce mutual coupling of LP antennas but the impact of these techniques on the axial ratio (AR) of the CP antenna has been rarely discussed.…”

Section: Introductionmentioning

confidence: 99%

Isolation Enhancement of Closely Packed Dual Circularly Polarized MIMO Antenna Using Hybrid Technique

Jamal

Yeung

2020

IEEE Access

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Mutual coupling always seriously degrades the antenna performance in multiple-input multiple-output (MIMO) systems but this issue has been rarely investigated for antennas with circular polarization. In this paper, a planar and compact circularly polarized MIMO patch antenna with the polarization diversity is presented. Three grounded stubs and a mirrored F-shaped defected ground structure are used to achieve simultaneous matching and isolation between the two patches with offset feeding for circular polarization. The antenna elements are closely packed with the edge-to-edge distance of 0.06λ 0 at the desired frequency of 2.5 GHz. The measured results indicate that the proposed antenna achieves the impedance matching (S 11 < −10 dB), high isolation (S 12 < −20 dB), and circular polarization (axial ratio<3 dB) within the frequency band of 2.5-2.55 GHz. The radiation patterns and realized gains are measured, showing good agreement between the simulation and measurement. INDEX TERMS Circular polarization (CP), multiple-input multiple-output (MIMO), axial ratio (AR), defected ground slot (DGS), envelope correlation coefficient (ECC), left-hand circular polarization (LHCP), right-hand circular polarization (RHCP).

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Section: Introductionmentioning

confidence: 99%

Isolation Enhancement of Closely Packed Dual Circularly Polarized MIMO Antenna Using Hybrid Technique

Jamal

Yeung

2020

IEEE Access

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“…Nevertheless, this scheme is inappropriate for execution in an electrically thin substrate. Introducing reactive impedance surface characterizes one more method [16,17]. Among all these techniques, increasing the substrate's thickness is one of the most conventional ones [18].…”

Section: Introductionmentioning

confidence: 99%

A Novel Lumped Lc Resonator Antenna With Air-Substrate for 5g Mobile Terminals

Kamal¹,

Mohammed²,

Ain³

et al. 2020

PIER Letters

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The extending applications for mobile computing have experienced immense progress over the previous decade. However, this has ultimately influenced the shortage of bandwidth. Therefore, to fulfill the consumers' demand, inexpensive antennas need to be uniquely designed for the next/fifth generation (5G) frequency spectrum. Consequently, this paper presents a novel antenna composed of inductors (L) or capacitors (C) on an air-substrate. Zinc (Zn) and copper (Cu) materials are utilized to fabricate the lumped LC resonator prototype. The effects of antenna's and substrate's thickness on resonant frequency or bandwidth have been studied. The finalized configuration engaged 1113 sq. mm area and operated at 28 GHz with approximately 3 GHz bandwidth. At resonant frequency, the system demonstrates peak gain and efficiency values of 10.6 dBi and 91%, respectively. The core objective of this paper is to report an antenna featuring simple and economical design along with premium results for 5G mobile terminals.

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“…In this context, a compact MIMO system with low coupling between collocated antenna elements has become a real challenge for antenna designers, and several decoupling methods have been devoted to this issue. For example, defected ground structures (DGS) [2][3][4] and metamaterial structures in [5][6][7] have been applied to achieve high isolation in MIMO antenna systems. Also, the weak mutual coupling between the ports of a two orthogonal patches antenna has been designed in [8] for the 2.4 GHz industrial, science, and medical (ISM) band.…”

Section: Introductionmentioning

confidence: 99%

A Miniaturized Dual-Band Mimo Antenna With Low Mutual Coupling for Wireless Applications

Ouahabi¹,

Zakriti²,

Essaaidi³

et al. 2019

PIER C

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In this article, a parasitic element structure is proposed to reduce the mutual coupling in a miniaturized microstrip dual-band Multiple-Input Multiple-Output (MIMO) antenna, which resonates at (7.8 GHz) for X-band and at (14.2 GHz) for Ku band applications. The design of the primary antenna consists of two identical radiators placed on a 24 × 20 mm 2 Fr-4 substrate, which are excited by orthogonal microstrip feed lines. In addition, a single complementary split ring resonator (S-CSRR) is used to improve the performance of proposed antenna. Simulation and measurement were used to study the antenna performance, including reflection coefficients, coupling between the two input ports, radiation efficiency, and the radiation pattern. The measured results show that the proposed antenna achieves two operating bands with impedance bandwidths (|S 11 | ≤ −10 dB) of 560 MHz (7.6 to 8.16 GHz) and 600 MHz (13.8 to 14.4 GHz) and mutual coupling (|S 12 | < −26 dB), which are suitable for X/Ku band applications.

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Printed Meander Line Mimo Antenna Integrated With Air Gap, DGS and Ris: A Low Mutual Coupling Design for Lte Applications

Cited by 21 publications

References 29 publications

Isolation Enhancement of Closely Packed Dual Circularly Polarized MIMO Antenna Using Hybrid Technique

Isolation Enhancement of Closely Packed Dual Circularly Polarized MIMO Antenna Using Hybrid Technique

A Novel Lumped Lc Resonator Antenna With Air-Substrate for 5g Mobile Terminals

A Miniaturized Dual-Band Mimo Antenna With Low Mutual Coupling for Wireless Applications

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