A new tunable frequency 4xl MIMO antennas loaded with liquid crystal dedicated for 5G and WiGig applications

Kouki, Adel; Sboui, Fakher; Latrach, Lassaad

doi:10.1109/mms55062.2022.9825541

Cited by 3 publications

(2 citation statements)

References 26 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…As mentioned in the introduction, injecting the liquid crystal into an antenna between the top face and the ground plane is the key to exploiting its advantages by adjusting the resonant frequency 1613 International Journal of Microwave and Wireless Technologies [28,29,31,32]. In this context, the position of the first layer of the liquid crystal should be limited only by the via of the SIW cavity.…”

Section: Proposed Siw Microstrip Patch Antenna Loaded With Liquid Cry...mentioning

confidence: 99%

See 1 more Smart Citation

Magnetically tuned SIW patch antenna based on nematic liquid crystal for 5G applications and satellite communication systems

Kouki

Sboui

Latrach

2023

Int. J. Microw. Wireless Technol.

Self Cite

View full text Add to dashboard Cite

This paper presents a new design of a reconfigurable miscrostrip patch antenna based on a substrate-integrated waveguide (SIW). The antenna is resonant at the millimeter-wave (mmWave) 5G spectrum. The tuning technique consists of using a nematic liquid crystal (K15). An adjustable frequency band from 30.191 to 32 GHz is obtained, giving a tunable range of Δfr = 1.809 GHz. The maximum gain and efficiency reach the values of 7.61 and 9.07 dBi and 93 and 94%, respectively. The proposed SIW antenna loaded with liquid crystal was fabricated and tested. The experimental results correlated well with the simulation; however, the measured reflection coefficient plot shows a shift of the tuning range of 284 MHz, which is an acceptable outcome compared to simulation. A new approach of adopting the magnetic field as a technique to tune the resonance frequency has been used. The structure is characterized by its design simplicity, compactness, and fabrication process. The proposed antenna proves that the liquid crystal improves the performance of the antenna in the Ka band for 5G applications and satellite communication systems.

show abstract

Section: Proposed Siw Microstrip Patch Antenna Loaded With Liquid Cry...mentioning

confidence: 99%

“…A reconfigurable antenna can be used to cover a wide band. In fact, several methods for adding reconfigurability exist, including the use of Varactor diodes [18,19], Pin diodes [20], RF-MEMS microelectromechanical systems [21,22], and agile materials [23][24][25][26][27][28][29].…”

Section: Introductionmentioning

confidence: 99%