High isolation, dual-polarized &amp; dual-band single-layer differential MIMO antenna for WiMAX application

Li, Wen-Ao; Tu, Zhi‐Hong; Liu, Yanyan

doi:10.1109/aps.2016.7695935

Cited by 3 publications

(2 citation statements)

References 6 publications

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“…The differentially-fed MIMO antenna with dual-band is discussed in [ 82 ]. It consists of four ports sharing a common radiator and a square ring ground, suitable for WiMAX application, as shown in Figure 18 a.…”

Section: Multiport Single Element Systemmentioning

confidence: 99%

Multiport Single Element Mimo Antenna Systems: A Review

Sheriff

Rahim

Chattha³

et al. 2023

Sensors

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In response to the increasing demand for voice, data, and multimedia applications, the next generation of wireless communication systems is projected to provide faster data rates and better service quality to customers. Techniques such as Multiple-Input–Multiple-Output (MIMO) and diversity are being studied and implemented to meet the needs of next-generation wireless communication systems. Embedding multiple antennas into the same antenna system is seen as a promising solution, which can improve both the system’s channel capacity and the communication link’s quality. However, for small handheld and portable devices, embedding many antennas into a single device in a small area and at the same time providing good isolation becomes a challenge. Hence, designing a shared antenna system with multiple feed ports with equivalent or better performance characteristics as compared to the approach of multiple antennas with multiple feed ports is a promising advantage which can reduce the size and cost of manufacturing. This paper intends to provide an in-depth review of different MIMO antenna designs with common radiators covering various antenna design aspects such as isolation techniques, gain, efficiency, envelope correlation coefficient, and size, etc. There is also a discussion of the mathematical concepts of MIMO and different isolation techniques, as well as a comparative analysis of different shared radiator antenna designs. The literature review shows that only very few antennas’ design with common radiator have been suggested in the available literature at present. Therefore, in this review paper, we have endeavored to study different antennas’ designs with common radiator. A comparison is provided of their performance improvement techniques in a holistic way so that it can lead to further develop the common radiator multiport antenna systems and realize the promising advantages they offer.

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Section: Multiport Single Element Systemmentioning

confidence: 99%

Multiport Single Element Mimo Antenna Systems: A Review

Sheriff

Rahim

Chattha³

et al. 2023

Sensors

View full text Add to dashboard Cite

show abstract

“…Increasing the edge-to-edge separation between antennas or orthogonally arranging antennas 1,2 can reduce mutual coupling between antennas without any isolation or decoupling structures, but this undoubtedly makes antennas occupy larger space. More literatures on antenna decoupling are to add resonant structures such as asymmetric loop resonator, 3 well-designed ground, 4 electromagnetic bandgap (UC-EBG), cross slots, 5 etc.…”

Section: Introductionmentioning

confidence: 99%

Dual‐band decoupling and wideband harmonic suppression for asymmetric antenna pair by using filtering structures

Zhai

Zhong

et al. 2020

Micro & Optical Tech Letters

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In this letter, a new method is proposed to achieve high port isolation and wideband harmonic suppression for two closely placed asymmetric antennas by using integrated filtering structures cascaded on the feeding microstrip lines. The proposed asymmetric antenna pair operates normally at 2.34 to 2.6 GHz and 3.31 to 3.69 GHz, respectively, containing the WLAN band (2.4‐2.484 GHz) and the fifth generation (5G) bands of China Telecom (3.4‐3.5 GHz) and China Unicom (3.5‐3.6 GHz). Compared to the reference antenna pair, the proposed antenna pair has an enhancement in isolation of 40.8 and 38.1 dB at 2.45 and 3.5 GHz individually, and the higher harmonics of up to 18 GHz generated by the reference antenna pair can be suppressed. The gain of the proposed antenna pair decreases by an average of 8.8 dB in the higher harmonic frequency bands. The measured results of the manufactured antenna pair agree well with the simulated results, indicating that the designed antenna pair has good dual‐band decoupling and wideband harmonic suppression characteristics. This method particularly reduces the complexity of the decoupling antenna design and is suitable for the future multi‐functional terminals.

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