Wideband Patch Antenna Using Multiple Parasitic Patches and Its Array Application With Mutual Coupling Reduction

Xu, Kai‐Da; Zhu, Jianfeng; Liao, Shaowei; Xue, Quan

doi:10.1109/access.2018.2860594

Cited by 70 publications

(44 citation statements)

References 23 publications

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“…DGS could play a role of band-stop filters to suppress mutual coupling between antenna elements [8], [9]. Additional coupling paths could be introduced by parasitic elements or other similar elements in order to decrease the coupling [10]- [13]. Parasitic monopoles were reported to improve the isolation of a tri-slot antenna array [10].…”

Section: Introductionmentioning

confidence: 99%

Weak-Field-Based Self-Decoupling Patch Antennas

Lin

Chen

et al. 2020

IEEE Trans. Antennas Propagat.

112

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In this paper, a new self-decoupling method, namely weak-field-based decoupling technique, is proposed and validated based on inset-fed patch antenna arrays. The self-decoupling effect is realized by taking advantage of the inherent weak-field area created by the feeding structure and proposed inset-fed patch. By strategically arranging the array element in the weak-field area of the adjacent antenna element, the coupling strength between adjacent elements can be controlled under a very low level without the need of any additional decoupling circuitry or structures. A two-element patch antenna array was first developed and analyzed, achieving a peak isolation level of 61 dB. Afterwards, a fourelement linear patch antenna array was designed, fabricated and measured to further validate the proposed technique. With the distinct advantages of simple structure and effective isolation enhancement, the proposed self-decoupling method is very promising for MIMO applications.

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Section: Introductionmentioning

confidence: 99%

Weak-Field-Based Self-Decoupling Patch Antennas

Lin

Chen

et al. 2020

IEEE Trans. Antennas Propagat.

112

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“…However, neutralization-line [9,10] has been used to improve the isolation between two-monopole-antenna system. There are still other methods to achieve a better isolation by using metalized via wall [11], electromagnetic band-gap (EBG) structure [12][13][14], etching slots in the ground plane [15,16], and ELC resonator [17].…”

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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“…To generate a stopband, sufficient transverse spaces must be reserved to implement EBG structures, resulting in a relatively larger structural footprint. Other techniques include utilizing particularly designed impedance matching networks and neutralizing networks realized by parallel coupled‐line resonators or stepped impedance resonators . Recently, metamaterials which exhibit a negative effective permeability have been extensively used to enhance the inter‐element isolation between patch antennas.…”

Section: Introductionmentioning

confidence: 99%

“…Other techniques include utilizing particularly designed impedance matching networks 13 and neutralizing networks realized by parallel coupled-line resonators 14 or stepped impedance resonators. 15 Recently, metamaterials which exhibit a negative effective permeability have been extensively used to enhance the inter-element isolation between patch antennas. In, 16 a dual-element E-coupled patch array with an edge separation of λ 0 /8 has been decoupled using a metamaterial superstrate etched by slot combined complementary split ring resonators (SC-CSRR).…”

Section: Introductionmentioning

confidence: 99%

“…17 The substrate integrated split ring resonator (SRR) is particularly designed to fulfill the desired metamaterial. Nevertheless, the decoupling methods mentioned earlier [8][9][10][11][12][13][14][15][16][17] are restricted to linearly polarized antenna arrays. In a more recent work, the broadside coupled SRRs (BC-SRR) have been located and oriented strategically in order to reduce mutual coupling between circularly polarized (CP) elements within a compact global positioning system (GPS) patch antenna array.…”

Section: Introductionmentioning

confidence: 99%

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Isolation enhanced circularly polarized patch antenna array using modified electric‐field‐coupled resonator

Shi

Feng

et al. 2018

Int J RF Microw Comput Aided Eng

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A modified electric‐field‐coupled (MELC) resonator featuring negative permittivity is proposed to enhance the inter‐element isolation of a circularly polarized (CP) patch antenna array operated at Chinese compass navigation satellite system (CNSS) downlink band. The resonator comprises two capacitive gaps and a common inductive strip connected to the ground plane by two metal vias. A suspended microstrip line excitation is employed to efficiently design and investigate the MELC resonator whose constitutive parameters are subsequently extracted. A dual‐element CNSS antenna array has been prototyped and measured. The experimental results demonstrate that under the assistance of the proposed MELC resonator, a mutual coupling reduction of 15 dB has been achieved while maintaining good impedance matching and CP radiation performance. Details of the design considerations along with simulation and measurement results are presented and discussed.

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Wideband Patch Antenna Using Multiple Parasitic Patches and Its Array Application With Mutual Coupling Reduction

Cited by 70 publications

References 23 publications

Weak-Field-Based Self-Decoupling Patch Antennas

Weak-Field-Based Self-Decoupling Patch Antennas

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

Isolation enhanced circularly polarized patch antenna array using modified electric‐field‐coupled resonator

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