A reconfigurable integrated
            <scp>4‐port UWB</scp>
            and
            <scp>NB</scp>
            antenna system for cognitive radio application

Nella, Anveshkumar; Vattiprolu, Sandeep Kiran; Saha, Chinmoy; Siddiqui, Jawad Y.

doi:10.1002/mmce.22998

Cited by 6 publications

(2 citation statements)

References 31 publications

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“…The antennas are compared concerning their sizes, several ports, band coverage of wideband and narrowband antennas, and isolation. The isolation in between the antennas is ignored as sensing and communicating antennas are integrated within a single structure 25 . Compared to the other antennas, the proposed antenna covers the entire UWB spectrum through 3 NB antennas with lower dimensions.…”

Section: Comparison Of Designsmentioning

confidence: 99%

“…The isolation in between the antennas is ignored as sensing and communicating antennas are integrated within a single structure. 25 Compared to the other antennas, the proposed antenna covers the entire UWB spectrum through 3 NB antennas with lower dimensions. Hence, this design can be considered as a suitable candidate with spectrum sensing and communicating properties for CR applications.…”

Section: Comparison Of Designsmentioning

confidence: 99%

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A multi‐port, narrow‐wide band achievable, reconfigurable antenna for cognitive radios

Cleetus

Bala

2022

Int J RF Mic Comp-Aid Eng

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This paper aims to propose a 4-port integrated antenna system that is capable of exhibiting ultra wideband (UWB) and narrowband (NB) characteristics using excitation switching reconfiguration. In line with the requirements of the Cognitive Radio (CR), the UWB functionality makes the antenna capable of spectrum sensing and the NB feasibility allows the antenna to communicate with the spectrum. The proposed antenna is having a compact dimension of 40 mm Â 35 mm Â 1.6 mm and is printed on FR4 substrate with relative permittivity of 4.4. The antenna performance is analyzed as 3 scenarios. In all three, the antenna is found to cover the entire UWB spectrum approved by the federal communications commission (FCC), from 3.1 to 10.6 GHz. In addition to the UWB characteristics, each scenario provides at least one NB characteristic. In Scenario 1, the NB antenna 1 provides coverage from 6.87 to 8.67 GHz whereas, in Scenario 2, the NB antenna 2 provides dual-band coverage from 2.99 to 4.27 GHz and 8.47 to 11.40 GHz. In Scenario 3, the NB antenna 3 operates in a single band from 4.09 to 7.09 GHz. Isolation between the antennas is found to be less than À15.9 dB in all the Scenarios. The lumped equivalent models of NB antennas are simulated and optimized in Applied Wave Research (AWR) software to match the antenna S-parameters at their resonance frequencies. The simulated and measured results are in good agreement.The comparative analysis of the antenna with the previous works in the same area is also included in this paper.

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Section: Comparison Of Designsmentioning

confidence: 99%

Section: Comparison Of Designsmentioning

confidence: 99%

A multi‐port, narrow‐wide band achievable, reconfigurable antenna for cognitive radios

Cleetus

Bala

2022

Int J RF Mic Comp-Aid Eng

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A Sensing and Tunable Two‐Element MIMO Unified Five‐Antenna via Circuit Model for WLAN Cognitive Radio

Vattiprolu,

Nella

2024

Int J Communication

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This paper presents a five‐element antennas system formed by integrating one sensing and four reconfigurable communicating antennas on a single substrate for cognitive radio applications in the 2.4 and 5 GHz WLAN bands. The five antennas are termed as A‐1, A‐2, A‐3, A‐4, and A‐5, where A‐1 is designed to sense in the 2.4 (2.4–2.484 GHz) and 5 GHz (5.15–5.875) bands. Antenna A‐2, exhibiting two‐element MIMO configuration with A‐3, is designed to communicate in the 5 GHz band, whereas Antenna A‐4, also exhibiting two‐element MIMO configuration with A‐5, operates in the 2.4 GHz band. Each communicating antenna is incorporated with a varactor diode to accomplish continuous frequency tuning operations. Simulated maximum peak gains of A‐1, A‐2, and A‐4 are 7.07, 2.65, and 2.15 dBi, respectively. A good mutual coupling, of less than −15 dB, is noted between the sensing and communicating antennas. MIMO diversity parameters are found to be ECC ≤ 0.01, TARC ≤ −10 dB, DG ≤ 10 dB, and CCL ≤ 0.4. Overall dimensions of the proposed structure are 80 mm × 100 mm × 1.2 mm. The antenna lumped element circuit models developed in ADS software also present good matching with EM simulation. A prototype of the proposed antenna system is fabricated to validate the simulation results. Because the proposed antenna can sense the WLAN bands using the dual‐band antenna (A‐1) and can be able to communicate at the identified spectrum holes using the reconfigurable NB antennas (A‐2 to A‐5), this antenna system is an appropriate module for the cognitive radio applications in WLAN bands.

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A Dual-Band RF Energy Harvesting System in Sub-6 GHz for Low-Power Electronic Appliances

Garikipati,

Tangirala,

Mehta

et al. 2023

EAI/Springer Innovations in Communication and Computing

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A reconfigurable integrated 4‐port UWB and NB antenna system for cognitive radio application

Cited by 6 publications

References 31 publications

A multi‐port, narrow‐wide band achievable, reconfigurable antenna for cognitive radios

A multi‐port, narrow‐wide band achievable, reconfigurable antenna for cognitive radios

A Sensing and Tunable Two‐Element MIMO Unified Five‐Antenna via Circuit Model for WLAN Cognitive Radio

A Dual-Band RF Energy Harvesting System in Sub-6 GHz for Low-Power Electronic Appliances

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