A Novel Compact Reconfigurable Broadband Antenna for Cognitive Radio Applications

Kantemur, Adnan; Tak, Jinpil; Siyari, Peyman; Abdelrahman, Ahmed H.; Krunz, Marwan; Xin, Hao

doi:10.1109/tap.2020.2996803

Cited by 25 publications

(8 citation statements)

References 50 publications

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“…The frequency and pattern reconfigurable antenna developed by li et al 32 has an omnidirectional pattern in the 2.21–2.79 GHz frequency range and a unidirectional pattern in the 5.27–5.56 GHz frequency range. The cognitive radio system, in which an antenna tunes to the appropriate frequency based on available spectrum, 33 symbolises the near future of wireless communication. With a frequency range of 0.43–5 GHz, a reconfigurable antenna with a dimension of 60 × 100 mm 2 was exhibited.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable circular patch MIMO antenna for 5G (sub‐6 GHz) and WLAN applications

Singh

Mahto

Kumar

et al. 2022

Int J Communication

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In this article, a circular patch microstrip feed line monopole radiator with a dimension of 15 Â 20 Â 1.6 mm 3 is proposed. An inverted L-shaped stub is employed in the partial ground plane to achieve optimum bandwidth, radiation pattern and radiation efficiency. To further cover the sub-6 GHz spectrum (3.4-3.8 GHz) for future 5G communications, a two-element MIMO antenna configuration is designed by utilising the single element antenna. The edge-toedge distance between the two elements is 0.15λ 0 (15 mm). The propose antenna achieved dual-operating bands of 3. 35-4.60 and 4.93-5.19 GHz in the diode (D) = ON state. The minimum isolation between 3.35-3.94 and 4.99-5.16 GHz frequency range is À14.5 and À12.5 dB, respectively, by incorporating a rectangular stub between two inverted L-shaped stubs. The MIMO antenna has a peak gain of 2.68 dBi at 5.1 GHz frequency. The average total efficiency at port-1 between 3.35-3.94 and 4.93-5.19 GHz frequency range is 65%, whereas at port-2 is 75%. In terms of the envelop correlation coefficient (ECC), mean effective gain (MEG) and total active reflection coefficient (TARC), the proposed antenna's diversity performance characteristics are investigated and the obtained values are 0.09, ±3 and À3 dB, respectively. The suggested MIMO antenna is designed on a FR4 substrate with a dielectric constant of 4.4 and an electrical dimension of 0.34λ 0 Â 0.20λ 0 Â 0.015λ 0 mm 3 (where λ 0 represents the free space wavelength at lower cut-off frequency [2.95 GHz]). Therefore, the proposed antenna can find applications for rain or fog as well as for identification and tracking (weather radar) on S-band at 3 GHz frequency, 5G (sub-6 GHz) and WLAN applications.

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Section: Introductionmentioning

confidence: 99%

Reconfigurable circular patch MIMO antenna for 5G (sub‐6 GHz) and WLAN applications

Singh

Mahto

Kumar

et al. 2022

Int J Communication

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“…The antenna was reconfigured by combining a planar monopole with a microstrip patch connecting by five PIN diodes divided into two groups. The cognitive radio system, in which an antenna tunes to the appropriate frequency based on the available spectrum (Kantemur et al , 2020), symbolizes the near future of wireless communication. With a frequency range of 0.43–5GHz, a rectangular-shaped reconfigurable antenna with a dimension of 60 × 100mm 2 was exhibited.…”

Section: Introductionmentioning

confidence: 99%

Reconfigurable dual element dual band MIMO antenna for 5G (Sub-6 GHz) and WLAN applications

Singh

Mahto

Sinha

2022

COMPEL

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Purpose This study aims to present dual band reconfigurable MIMO antenna for 5G (sub-6 GHz) and WLAN applications. Design/methodology/approach To achieve optimum bandwidth, radiation pattern and radiation efficiency, the defected ground structure (DGS) and a rectangular stub connected with the DGS are used. To further cover the sub-6 GHz spectrum (3.4–3.6 GHz) for future 5G communications, a two-element multi-input multi-output (MIMO) antenna configuration is designed by using the single element antenna. The proposed reconfigurable MIMO antenna using a PIN diode is designed on an FR4 substrate with a dielectric constant of 4.4 and a loss tangent of 0.02 and a 35 × 20 × 1.6 mm3 dimension. Findings The proposed antenna achieved dual operating bands of 3.4–4.1 GHz (5 G sub-6GHz applications) and 4.99–5.16 GHz (WLAN application) in the D = ON state. For D = OFF state, the proposed antenna achieved 3.55–3.65 GHz and 3.66–4.05 GHz frequency bands for 5G (sub-6GHz) applications. In terms of the envelop correlation coefficient, diversity gain, mean effective gain, total active reflection coefficient and isolation between the ports, the proposed antenna’s diversity performance characteristics are investigated and the obtained values are 0.05, 9.9 dB, ±3dB, −4dB, −15dB, respectively. Research limitations/implications The fabricated prototype antenna on FR4 substrate has measurable parameters that are in good agreement with the simulated findings. Due to hardware design limitations, there is a minor difference between software and hardware results. Originality/value The proposed MIMO antenna is compact and reconfigurable for 5G (sub-6GHz) and WLAN applications, and from the graph, the measurements and simulations have been found to be in close agreement.

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“…Depending on the number of switches, two or more reconfigurabilities can be implemented at the same time. The cognitive radio system, in which an antenna adjusts to the appropriate frequency based on the available spectrum, represents the near future of wireless communication [10]. Accordingly, reconfigurable antennas, which are utilized in satellite communications and radar systems, are one of the best choices for such adaptive systems.…”

Section: Introductionmentioning

confidence: 99%

Design and Analysis of a PDLC-Based Reconfigurable Hilbert Fractal Antenna for Large and Fine THz Frequency Tuning

Garu

Wang

2022

Micromachines

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The proposed reconfigurable radiating antenna design is based on the integration of a reconfigurable fractal antenna and electro-optic substrate material. This antenna can be adjusted to achieve either re-configurability or tunability in the desired frequency range for wireless systems. The electromagnetic characteristics of the fractal antenna are manipulated at both the level of fractal geometry, electrical length and dielectric substrate. The designed antenna features multiband responses, in which the geometry and length change create a large frequency shift and the dielectric change using polymer dispersed liquid crystal (PDLC) creates fine and/or continuous tuning. The far field and scattering properties of the antenna are analyzed using the Computer Simulation Technology (CST) Microwave Studio Suite. The proposed approach has successfully demonstrated reconfigurable switching for up to four frequency bands between 0.2 and 0.6 THz. The dielectric constant change in the PDLC substrate shows fine and continuous frequency tuning with an 8% maximum frequency shift when operating around 0.54 THz and a high directivity of 7.35 dBi at 0.54 THz and 8.43 dBi at 0.504 THz. The antenna can also realize a peak gain of 4.29 dBi at 0.504 THz in the extraordinary polarization state of PDLC. The designed antenna can be readily integrated in the current communication devices, such as satellites, smart phones, laptops, and other portable electronic devices, due to its compact geometry and IC compatible design. In satellite applications, the proposed antenna can play a significant role in terms of security. The antenna could be extremely useful for satellites that want to keep their information secret; by constantly switching their operating frequency, spy satellites can evade detection and data collection from enemy ears.

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A Novel Compact Reconfigurable Broadband Antenna for Cognitive Radio Applications

Cited by 25 publications

References 50 publications

Reconfigurable circular patch MIMO antenna for 5G (sub‐6 GHz) and WLAN applications

Reconfigurable circular patch MIMO antenna for 5G (sub‐6 GHz) and WLAN applications

Reconfigurable dual element dual band MIMO antenna for 5G (Sub-6 GHz) and WLAN applications

Design and Analysis of a PDLC-Based Reconfigurable Hilbert Fractal Antenna for Large and Fine THz Frequency Tuning

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