Reconfigurable Antenna for Future Spectrum Reallocations in 5G Communications

Trinh, Le Huy; Ferrero, Fabien; Lizzi, Léonardo; Staraj, Robert; Ribero, Jean‐Marc

doi:10.1109/lawp.2015.2505669

Cited by 40 publications

(18 citation statements)

References 6 publications

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“…They differ by 0.3 dB, which belongs to the uncertainty of the measurement. Related work on single antenna design reports similar peak total efficiencies: −6 dB at 600 MHz in [24], −4 dB at 700 MHz [25], [26], and −2.6 dB at 750 MHz in [27]. It can be noted that the trace loss can be both simulated and measured.…”

Section: B Design A: Reference Designmentioning

confidence: 60%

Tunable Handset Antenna: Enhancing Efficiency on TV White Spaces

Barrio

Foroozanfard

Morris³

et al. 2017

IEEE Trans. Antennas Propagat.

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With the future long term evolution (LTE) auction for television white spaces at 600 MHz, there is a strong need for efficient handset antennas operating at very low frequencies. This communication shows a tunable antenna covering the LTE bands from 600 MHz to 2.6 GHz. The antenna uses state-of-the-art microelectromechanical system tunable capacitors in order to reconfigure its operating frequency. In this communication, the design mitigates the tuning loss with a tunable extended ground plane. The resulting dual-resonant antenna exhibits a peak total efficiency of −3.9 dB at 600 MHz.

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Section: B Design A: Reference Designmentioning

confidence: 60%

Tunable Handset Antenna: Enhancing Efficiency on TV White Spaces

Barrio

Foroozanfard

Morris³

et al. 2017

IEEE Trans. Antennas Propagat.

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“…Table 2 compares the fundamental properties of the proposed MIMO antenna with MIMO antenna arrays recently reported in the literature [5,6,7,8,9,10,11,12,13,14,15]. As can be seen, the proposed antenna can support three different operation bands with very similar radiation and MIMO performances in terms of bandwidth, efficiency, isolation, and ECC.…”

Section: User-effect and Sar Investigationmentioning

confidence: 95%

“…However, all these antennas only support one mobile terminal, and they have some limitations, such as being narrow-band. To the best of the authors’ knowledge, there are only a few MIMO designs covering both 4G and 5G spectrums [12,13,14,15]. In contrast to the reported designs, each radiator of our design can cover 4G and 5G frequency operation bands simultaneously, which makes the proposed MIMO antenna more suitable for future smartphones.…”

Section: Introductionmentioning

confidence: 98%

Multi-Band MIMO Antenna Design with User-Impact Investigation for 4G and 5G Mobile Terminals

Parchin

Basherlou²,

Al‐Yasir

et al. 2019

Sensors

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In this study, we propose a design of a multi-band slot antenna array applicable for fourth-generation (4G) and fifth-generation (5G) smartphones. The design is composed of double-element square-ring slot radiators fed by microstrip-line structures for easy integration with radio frequency (RF)/microwave circuitry. The slot radiators are located on the corners of the smartphone printed circuit board (PCB) with an overall dimension of 75 × 150 mm2. The proposed multiple-input multiple-output (MIMO) antenna is designed to meet the requirements of 4G and 5G mobile terminals with essential bandwidth for higher data rate applications. For −10 dB impedance bandwidth, each single-element of the proposed MIMO design can cover the frequency ranges of 2.5–2.7 GHz (long-term evolution (LTE) 2600), 3.45–3.8 GHz (LTE bands 42/43), and 5.00–5.45 GHz (LTE band 46). However, for −6 dB impedance bandwidth, the radiation elements cover the frequency ranges of 2.45–2.82 GHz, 3.35–4.00 GHz, and 4.93–5.73 GHz. By employing the microstrip feed lines at the four different sides of smartphone PCB, the isolation of the radiators has been enhanced and shows better than 17 dB isolation levels over all operational bands. The MIMO antenna is implemented on an FR-4 dielectric and provides good properties including S-parameters, efficiency, and radiation pattern coverage. The performance of the antenna is validated by measurements of the prototype. The simulation results for user-hand/user-head impacts and specific absorption rate (SAR) levels of the antenna are discussed, and good results are achieved. In addition, the antenna elements have the potential to be used as 8-element/dual-polarized resonators.

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“…In reality, the reconfiguration of an antenna results in a change in its operating frequency, radiation pattern or polarisation scheme. Electrical switches, mechanical actuators and other techniques are considered to achieve such reconfiguration [2][3][4][5][6][7][8][9]. Electrical switches are the most popular components that are incorporated on antenna structures to achieve reconfiguration [2][3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Isolation enhanced MIMO PIFA system with multiple reconfiguration techniques

Asadallah

Costantine

Tawk

2020

IET Microwaves, Antennas & Propagation

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In this study, a reconfigurable, two‐element, multiple‐input multiple‐output (MIMO) printed inverted‐F antenna (PIFA) is presented with an enhanced isolation ability. The MIMO antenna system is designed using three different reconfiguration techniques that are based on positive‐intrinsic‐negative diodes, radio frequency micro‐electromechanical switches and varactors. Their impact on the performance of the PIFA and the MIMO system is evaluated in terms of radiation characteristics, gain, power dissipated, radiation efficiency, linearity, biasing requirements and MIMO performance. Isolation between the two MIMO antenna elements is enhanced by integrating a reconfigurable band‐reject filter within the ground plane between the radiating elements. The band‐reject filter is reconfigured simultaneously with the radiating elements, hence resulting in less coupling and better isolation. The MIMO system along its various components is fabricated for the three different reconfiguration techniques and the comparison with predicted data shows great agreement.

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Reconfigurable Antenna for Future Spectrum Reallocations in 5G Communications

Cited by 40 publications

References 6 publications

Tunable Handset Antenna: Enhancing Efficiency on TV White Spaces

Tunable Handset Antenna: Enhancing Efficiency on TV White Spaces

Multi-Band MIMO Antenna Design with User-Impact Investigation for 4G and 5G Mobile Terminals

Isolation enhanced MIMO PIFA system with multiple reconfiguration techniques

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