A Dual-Band Multiple Input Multiple Output Frequency Agile Antenna for GPSL1/Wi-Fi/WLAN2400/LTE Applications

Aqeel, Sajid; Jamaluddin, Mohd Haizal; Khan, Asad; Khan, Rizwan; Kamarudin, M. R.; Kazim, Jalil ur Rehman; Owais, Owais

doi:10.1155/2016/9419183

Cited by 11 publications

(5 citation statements)

References 17 publications

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“…This implies that an antenna is supposed to cover a subset of bands at any given instant and subsequently to cover a different subset. Therefore, the frequency reconfigurable antennas have wide applicability and are able to provide multiband coverage by altering their resonance frequency and/or the impedance bandwidth [3,4].…”

Section: Introductionmentioning

confidence: 99%

A Compact Frequency Reconfigurable Hybrid DRA for LTE/Wimax Applications

Aqeel

Kamarudin²,

Khan

et al. 2017

International Journal of Antennas and Propagation

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A compact hybrid antenna structure with frequency reconfiguration capabilities is presented in this article. The proposed design employs a combination of a rectangular DR element and a coupling slot on the structure's ground plane (GP). The slot shifts the fundamental DRA mode by introducing a slow wave effect and its resonant behavior helps to achieve an omnidirectional pattern at low frequencies. The slot is loaded with a series of PIN diode switches whose ON/OFF combinations alter the effective slot length. Slot loading with PIN diodes results in frequency reconfiguration of the proposed structure with a large tuning range of 76.2% (between 1.73 and 3.86 GHz). A parametric analysis was performed to investigate the effects of slot length, width, and position on the reflection coefficients of the proposed structure. A prototype of the proposed design was fabricated and results were measured. The measured results show a close agreement with the simulated ones. The proposed design is suitable for DCS 1800 MHz, PCS 1900 MHZ, UMTS, LTE 2500-2700 MHz, and Wimax 3.5 GHz.

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Section: Introductionmentioning

confidence: 99%

A Compact Frequency Reconfigurable Hybrid DRA for LTE/Wimax Applications

Aqeel

Kamarudin²,

Khan

et al. 2017

International Journal of Antennas and Propagation

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“…MIMO DRAs are single radiator [134,135] and multi-radiator [136] antenna structures. The main limitation of a MIMO DRA with multi-radiators is that it compromises with the increased size of the antenna.…”

Section: Performance Improvement In Multi-input-multi-output (Mimo) Dramentioning

confidence: 99%

Critical Analysis of the Recent Trends and Advancements in Dielectric Resonator Antennas

Gotra¹,

Pandey²

2022

PIER B

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A comprehensive overview of dielectric resonator antenna (DRA) is presented in this paper. Several techniques have been reported in the literature for the performance improvement of DRA. Over the past few decades, circularly polarized (CP) DRAs have been widely explored to mitigate multipath fading and polarization losses in comparison to linearly polarized (LP) antennas. Apart from this, high data transfer rate is required, which needs the development in the field of multi-inputmulti-output (MIMO) antenna designs. This includes the increase in the channel capacity without exploiting the limited constraints like signal power and bandwidth. Thus, exploring the concept of MIMO in DRA along with the diversity performance features leads to the development in this field. Furthermore, to mitigate the conduction losses at THz and optical frequencies, high-efficiency DRA proves rationale in extending towards the higher frequency ranges. These scintillating features pave the path for efficient devices integration and on-chip applications at higher frequency ranges where the performance of metallic radiator degrades. Also, the dispersive properties of metal conductivity lead to plasmonic behaviour resulting in the dissipation losses at the optical frequencies. These losses can be substantially mitigated using DRAs. This can be efficiently realized for the future application that requires the manipulation of high-resolution light.

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“…Despite of many benefits of DRAs, only a few FR MIMO designs are reported in literature. 5,6 The reported designs however, are relatively large in size, which makes their integration in small devices impractical.…”

Section: Introductionmentioning

confidence: 99%

“…The frequency reconfigurable (FR) DRAs offer the desirable advantages of multiband coverage while simultaneously ensuring the high gain and better radiation efficiency. Despite of many benefits of DRAs, only a few FR MIMO designs are reported in literature 5,6 . The reported designs however, are relatively large in size, which makes their integration in small devices impractical.…”

Section: Introductionmentioning

confidence: 99%

A compactMIMO DRAwith simultaneous frequency and isolation reconfiguration

Aqeel

Khan

et al. 2020

Micro & Optical Tech Letters

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The frequency and an isolation reconfigurable multiple input multiple output (MIMO) dielectric resonator antenna (DRA) is presented in this communication. The design employs a low-profile rectangular DR element with ground plane having cross shape slots. The slots resonance is effectively combined with the DR-resonance for size miniaturization. Moreover, the slot responds as defected ground structure (DGS) for the DR element upon placement of PIN diodes. Switching amalgam of diodes results in frequency, isolation reconfigurability and resonates the structure in three distinct configurations covering PCS 1900 MHz, Wimax 2.3 GHz, and LTE 2500-2700 MHz bands. A thorough parametric study was performed to study the effects of cross shape DGS on the antenna parameters. The prototype of the proposed MIMO antenna is fabricated and results were measured to certify the simulated results. Few parameters of MIMO such like diversity gain (DG), envelope correlation coefficient (ECC), and mean effective gain (MEG) are provided to verify the MIMO performance.

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A Dual-Band Multiple Input Multiple Output Frequency Agile Antenna for GPSL1/Wi-Fi/WLAN2400/LTE Applications

Cited by 11 publications

References 17 publications

A Compact Frequency Reconfigurable Hybrid DRA for LTE/Wimax Applications

A Compact Frequency Reconfigurable Hybrid DRA for LTE/Wimax Applications

Critical Analysis of the Recent Trends and Advancements in Dielectric Resonator Antennas

A compactMIMO DRAwith simultaneous frequency and isolation reconfiguration

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