High-isolation WLAN MIMO laptop computer antenna array

Jiang, Huan-Jynu; Kao, Yu Chen

doi:10.1109/apmc.2012.6421584

Cited by 13 publications

(10 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This leads to a compact size of the MIMO antennas. This structural characteristic is different from those of the MIMO antennas that have been reported …”

Section: Conjoined Loop Mimo Antennascontrasting

confidence: 74%

“…To solve the coupling problem between two closely spaced antennas, many MIMO antenna technologies to improve the isolation thereof have been reported. It is noted that the reported MIMO antenna technologies generally require some spacing between two antennas, with and without external decoupling structures added in the spacing to achieve enhanced isolation.…”

Section: Introductionmentioning

confidence: 99%

“…For the case with external decoupling structures added, the related designs include using a protruded ground plane or a resonant ground strip between two antennas, using a neutralization line or a simple metal line connected between two antennas, using embedded slits in the ground plane or in the protruded ground plane between two antennas, and so on, have been reported. Such designs, owing to the presence of the external decoupling structure, show increased complexity in the structure of the MIMO antennas.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

High‐isolation conjoined loop multi‐input multi‐output antennas for the fifth‐generation tablet device

Wong

Lin

2018

Micro & Optical Tech Letters

View full text Add to dashboard Cite

Two coupled‐fed loop antennas with a conjoined capacitor‐embedded section to achieve compact size and high isolation for the fifth‐generation (5G) multi‐input multi‐output (MIMO) operation in the tablet device are presented. The two conjoined loop MIMO antennas cover the 5G band of 3300‐4200 MHz, which is considered to be the largest contiguous frequency range potentially available for 5G mobile broadband services below 6000 MHz. The conjoined capacitor‐embedded section not only functions as a part of the resonant path of the two loop antennas but also behaves like a band‐pass resonant structure in the operating band. The latter makes the capacitor‐embedded section to have much lower impedance in the operating band, as compared to that of a simple strip section. This makes it capable of effectively attracting the surface currents on the ground plane excited by one loop antenna to be away from the feed port of the other loop antenna. The two loop antennas can hence exhibit high isolation, even though the two antennas are conjoined to have a simple integrated planar structure of compact size. The envelope correlation coefficient (ECC) of the two conjoined loop antennas is also very small, less than 0.1 in the operating band.

show abstract

“…This leads to a compact size of the MIMO antennas. This structural characteristic is different from those of the MIMO antennas that have been reported …”

Section: Conjoined Loop Mimo Antennascontrasting

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

High‐isolation conjoined loop multi‐input multi‐output antennas for the fifth‐generation tablet device

Wong

Lin

2018

Micro & Optical Tech Letters

View full text Add to dashboard Cite

show abstract

“…[43]. Electromagnetic band gap (EBG) structure [36], frequency selective surface [37], [38] and resonators or hybrid resonators [39]- [41] have been employed to mitigate the mutual coupling in the 2 × 2 MIMO system. In addition, neutralization line [8], [9], [24] is effective in isolation enhancement within narrow frequency band.…”

Section: According To the World Radio Communication Conferencementioning

confidence: 99%

Ultra-Wideband MIMO Antenna System With High Element-Isolation for 5G Smartphone Application

Yuan

Hong

et al. 2020

IEEE Access

View full text Add to dashboard Cite

In this paper, we presented an ultra-wideband multiple-input multiple-output (MIMO) antenna system with high element-isolation for the application in 5G metal-frame smartphones. We proposed T-shaped and C-shaped slots on the metal frame generating four resonances to enhance the bandwidth. What's more, we introduce modified H-shaped slots between each antenna-element to improve the elementisolation of MIMO antenna system. As a result, the MIMO antenna system has a wide bandwidth of 58% ranging from 3.3 to 6 GHz and the element-isolation is over 18 dB crossing the effective frequency band. Thanks to the decent element-isolation, the envelope correlation coefficient (ECC) between each antennaelement is below 0.05 providing a reliable anti-interference for the MIMO antenna system. In addition, the measured radiation efficiencies of the MIMO antenna system are higher than 40%. At last, we analyze the effects caused by user's hands and head to guarantee the robustness of the MIMO antenna system in practical applications. INDEX TERMS 5G communication, sub-6 GHz, ultra-wideband, high isolation, metal frame.

show abstract

“…Several challenges are faced in order to integrate multiple antennas into a laptop. One of the main challenges in MIMO antenna design is to obtain good isolation characteristics between two antennas [ 9 ]. In order to reduce mutual coupling between multiple antennas, a lot of research has been done in order to overcome this challenge.…”

Section: Introductionmentioning

confidence: 99%

Design and Optimization of LTE 1800 MIMO Antenna

Wong

Islam

Kibria

2014

The Scientific World Journal

View full text Add to dashboard Cite

A multiple input and multiple output (MIMO) antenna that comprises a printed microstrip antenna and a printed double-L sleeve monopole antenna for LTE 1800 wireless application is presented. The printed double-L sleeve monopole antenna is fed by a 50 ohm coplanar waveguide (CPW). A novel T-shaped microstrip feedline printed on the other side of the PCB is used to excite the waveguide's outer shell. Isolation characteristics better than −15 dB can be obtained for the proposed MIMO antenna. The proposed antenna can operate in LTE 1800 (1710 MHz–1880 MHz). This antenna exhibits omnidirectional characteristics. The efficiency of the antenna is greater than 70% and has high gain of 2.18 dBi.

show abstract

High-isolation WLAN MIMO laptop computer antenna array

Cited by 13 publications

References 8 publications

High‐isolation conjoined loop multi‐input multi‐output antennas for the fifth‐generation tablet device

High‐isolation conjoined loop multi‐input multi‐output antennas for the fifth‐generation tablet device

Ultra-Wideband MIMO Antenna System With High Element-Isolation for 5G Smartphone Application

Design and Optimization of LTE 1800 MIMO Antenna

Contact Info

Product

Resources

About