A compact four-band high-isolation quad-port MIMO antenna for 5G and WLAN applications

Liu, Xiaoming; Zhang, Juan; Xi, Hongzhu; Yang, Xin‐She; Sun, Lijun; Gan, Lu

doi:10.1016/j.aeue.2022.154294

Cited by 14 publications

(9 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…MIMO antenna is extensively used in 5G mobile phones for higher data rate and low latency. The same goes for other communication networks like machine-to-machine connectivity and large wireless communication frameworks due to high channel capacity as well as high data speed [ 3 , 4 , 5 ]. Recently, MIMO antenna technology served different applications such as digital television, WLAN, mobile communication services, vehicle-to vehicle communication, etc.…”

Section: Introductionmentioning

confidence: 95%

Compact Quad Band MIMO Antenna Design with Enhanced Gain for Wireless Communications

Nej¹,

Ghosh²,

Ahmad

et al. 2022

Sensors

View full text Add to dashboard Cite

In this paper, a novel microstrip line-fed meander-line-based four-elements quad band Multiple Input and Multiple Output (MIMO) antenna is proposed with a gain enhancement technique. The proposed structure resonates at four bands simultaneously, that is, 1.23, 2.45, 3.5 and 4.9 GHz, which resemble GPS L2, Wi-Fi, Wi-MAX and WLAN wireless application bands, respectively. The unit element is extended to four elements MIMO antenna structure exhibiting isolation of more than 22 dB between the adjacent elements without disturbing the resonant frequencies. In order to enhance the gain, two orthogonal microstrip lines are incorporated between the antenna elements which result in significant gain improvement over all the four resonances. Furthermore, the diversity performance of the MIMO structure is analyzed. The Envelope Co-Relation Coefficient (ECC), Diversity Gain (DG), Channel Capacity Loss (CCL), Mean Effective Gain (MEG) and Multiplexing Efficiency are obtained as 0.003, 10 dB, 0.0025 bps/Hz, −3 dB (almost) and 0.64 (min.), respectively, which are competent and compatible with practical wireless applications. The Total Active Reflection Coefficient (TARC) resembles the characteristic of the individual antenna elements. The layout area of the overall MIMO antenna is 0.33 λ × 0.29 λ, where λ is the free-space wavelength corresponding to the lowest resonance. The advantage of the proposed structure has been assessed by comparing it with previously reported MIMO structures based on number of antenna elements, isolation, gain, CCL and compactness. A prototype of the proposed MIMO structure is fabricated, and the measured results are found to be aligned with the simulated results.

show abstract

Section: Introductionmentioning

confidence: 95%

Compact Quad Band MIMO Antenna Design with Enhanced Gain for Wireless Communications

Nej¹,

Ghosh²,

Ahmad

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…To achieve the different goals of a MIMO array, different proposals have been made to reduce the size, by using geometries [1] and element interconnections [2]. On the other hand, to increase the electromagnetic isolation, several proposals have been published, including slots and shorting pins [3], Defected Ground Structures [4,5], electromagnetic barriers, and imperfect structures, among other techniques.…”

Section: Introductionmentioning

confidence: 99%

4-ports Small Size Metamaterial Antenna with Electromagnetic Walls for MIMO Systems

Pineda-Salgado,

Tirado-Méndez,

Jardon-Aguilar

et al. 2024

PIER C

View full text Add to dashboard Cite

In this paper, a very small 4-port MIMO antenna is designed, based on a metamaterial structure composed of embedded octagonal Split-Ring Resonators (SSRs). The antenna array shows an axial symmetry configuration with dimensions of 32 × 32 mm 2 , corresponding to 0.157λ 2 , approximately, related to a center frequency of 3.5 GHz, with a high electromagnetic isolation despite the radiators' closeness, reaching values bigger than 26 dB for adjacent antennas, and more than 28 dB for opposite antennas. The antenna is built on a substrate with dielectric permittivity of 2.2 and 1.27 mm thick. The Total Active Reflection Coefficient (TARC) presents a steady behavior for different random phases at the incoming signals, keeping a system bandwidth of 0.9 GHz for a −10 dB value. On the other hand, the Envelope Correlations Coefficient (ECC) reports values lower than 0.001 in all the antenna relationships, achieving a very uncorrelated performance of the electric fields in each element. The radiation pattern is quasi-omnidirectional, obtaining a low gain around −2 dBi, a trade-off that is considering the size reduction of the MIMO antenna.

show abstract

“…A number of CP antennas have been discussed in the literature [5][6][7][8], but none have been designed with bandrejection capabilities. To achieve band-notch characteristics traditionally, slots are typically introduced into the antenna patch, feedline, or ground plane to disrupt and reject specific signals [9][10][11]. Reference [6] discusses a linearly polarized UWB antenna that employs band rejection features.…”

Section: Introductionmentioning

confidence: 99%

“…To produce dual band notches, two slots are etched in the patch. There have been other approaches to achieve band-notched characteristics formed on two-dimensional resonators, such as a ring-formed resonator [10] and a wander line resonator [11]. But by removing slots from the patches, the radiation properties are further deformed.…”

Section: Introductionmentioning

confidence: 99%

Multi-band Notched Circular Polarized MIMO Antenna for Ultra-wideband Applications

Thakur,

Jaglan,

Gupta

et al. 2024

PIER M

View full text Add to dashboard Cite

This paper details the development of an innovative Ultra-Wideband (UWB) Circularly Polarized (CP) Multi-Input Multi-Output (MIMO) antenna. Drawing inspiration from an Electromagnetic Band-Gap Structure, the antenna incorporates Two Via Compact Electromagnetic Band Gap (TVCEBG) cells strategically positioned close to the feedline. The result is a sophisticated triple-band notched planar antenna configuration. To enhance its performance, a slot and a stub are strategically added to the bottom plane, effectively broadening the Axial Ratio Bandwidth (ARBW). This carefully designed setup achieves a wide ARBW while simultaneously rejecting interference at 3.5, 5.5, and 8.2 GHz. Notably, the MIMO antenna demonstrates an axial ratio spanning from 3 to 10.4 GHz, coupled with an impedance bandwidth ranging from 3.1 to 10.6 GHz. Diversity features of the proposed structure are quantified through three key parameters: ECC (Envelope Correlation Coefficient) greater than 0, TARC (Total Active Reflection Coefficient) surpassing 10, and DG (Diversity Gain) exceeding 9.7. These parameters collectively indicate robust diversity characteristics, underscoring the antenna's efficacy in challenging communication scenarios. Practical implementation involves the use of FR4 dielectric substrates, with precise measurements of 42.7 × 55 × 1.6 mm 3 . This meticulous construction ensures the realization of the proposed structure's theoretical framework, highlighting the antenna's potential applicability in advanced UWB communication systems.

show abstract

A compact four-band high-isolation quad-port MIMO antenna for 5G and WLAN applications

Cited by 14 publications

References 28 publications

Compact Quad Band MIMO Antenna Design with Enhanced Gain for Wireless Communications

Compact Quad Band MIMO Antenna Design with Enhanced Gain for Wireless Communications

4-ports Small Size Metamaterial Antenna with Electromagnetic Walls for MIMO Systems

Multi-band Notched Circular Polarized MIMO Antenna for Ultra-wideband Applications

Contact Info

Product

Resources

About