Two-Port MIMO Wide-Band Antenna With Two-Port MIMO Reconfigurable Antenna for Cognitive Radio Platforms

Alam, Tanjir; Thummaluru, Sreenath Reddy; Chaudhary, Raghvendra Kumar

doi:10.1109/incap.2018.8770919

Cited by 12 publications

(3 citation statements)

References 12 publications

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“…Thus far, researches integrating MIMO antennas with CR system have been done in [37][38][39][40][41][42][43][44]. This research is primarily aimed at increasing the e ciency of spectrum utilization by offering numerous communication jobs at a time when the UWB sensing antenna detects several unused spectrum holes, which cannot be possible with conventional single or dual-port antennas.…”

Section: Introductionmentioning

confidence: 99%

A Five-Port Integrated Planar Ultra Wideband and Narrowband Antennas System Using Excitation Switching Reconfigurable Technique for Cognitive Radio Applications

Tadesse

Acharya

Sahu

2023

Wireless Pers Commun

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This work presents an integrated planar ve-element antennas system for cognitive radio (CR) applications. The proposed system is composed a ultra-wideband (UWB) antenna for sensing the radio spectrum and four different narrowband (NB) antennas for conducting the communication tasks. The overall antenna system is printed on FR-4 substrate of 50 mm × 50 mm × 1.6 mm dimension. The UWB antenna-coupled at port 5 (P5) is designed for sensing the 3.1 GHz to 10.6 GHz un-licensed UWB band. The rst NB antenna attached to port 1(P1) covers 5 GHz to 11.4 GHz wideband frequency, whereas the paired NB antennas located at port 2 and port 3 (P2 & P3) consists of two similar antennas to achieve MIMO operation and provides 3.05 GHz to 3.75 GHz and 4.9 GHz to 6.1 GHz dual-band operation.The last NB antenna accessible at port 4 (P4) operates in dual-band frequencies of 3.7 GHz to 4.92 GHz and 8.3 GHz to 11.3 GHz. These attained resonant bands cover applications, notably Wi-MAX 3.5 GHz, Upper WLAN, sub 6 GHz 5G, and X-bands in the full UWB spectrum.The minimum isolation among all UWB and NB antennas is 16 dB over the working bands. The MIMO performances of the port 2 and port 3 antenna pairs have been computed considering the envelope correlation coe cient and mean effective gain, and found within their practical limits. The measured results are validated and show a good matching with the simulated ones.The low pro le and planar features of the suggested antenna make it a possible choice to be assimilated within small wireless devices applicable in CR communication.

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Section: Introductionmentioning

confidence: 99%

A Five-Port Integrated Planar Ultra Wideband and Narrowband Antennas System Using Excitation Switching Reconfigurable Technique for Cognitive Radio Applications

Tadesse

Acharya

Sahu

2023

Wireless Pers Commun

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“…The combination of RPR antenna in MIMO technology is expected to give an advantage in terms of capacity. Reconfigurable antennas based on MIMO have been proposed by many researchers [6][3] [7] to fulfil the increased capacity demand. In this research, the RPR antenna was implemented as multiple antenna or MIMO to increase the capability of the MIMO system [5].…”

Section: Introductionmentioning

confidence: 99%

Beam Steering Investigation on Multiple Antenna System using Radiation Pattern Reconfigurable Array

Bharath

Sabapathy

Jusoh

et al. 2021

2021 International Conference on Radar, Antenna, Microwave, Electronics, and Telecommunications (ICRAMET)

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In this research, a radiation pattern reconfigurable (RPR) based multiple antenna was designed using a compact combination of a driven element and parasitic elements that operates at 3.5 GHz. The proposed antenna has the ability to change the radiation behavior to serve the user with better performance. The radiation characteristic of the antenna, especially the tilt angle could be reconfigured with the use of RF switches. The multiple antenna was designed on 94.4 mm x 110 mm Rogers substrate. First, an RPR antenna that uses parasitic patch array antenna was designed as a single element. Then this RPR was deployed as 2 x 1 RPR MIMO antenna using two types of configurations. Finally, the analysis showed that the multiple antenna arrangement using configuration II provides better results in terms of steering angle and gain.

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“…The impedance bandwidth of the UWB sensing antenna is 0.75 GHz–7.65 GHz and the frequency-agile four-element slot-based MIMO antenna can be tuned in 1.77 GHz–2.51 GHz communicating band. Alam et al (2018) proposed a four-port polarization diversity MIMO antenna that has two wideband antennas to sense the spectrum in 2.35 GHz–5.9 GHz and two reconfigurable narrow-band (NB) antennas to tune to the desired frequency band in 2.6 GHz–3.6 GHz.…”

Section: Introductionmentioning

confidence: 99%

A new two-element MIMO antenna system for cognitive radio applications

Srikar

Anuradha

2021

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Purpose This study aims to propose a two-element multi-input-multi-output (MIMO) antenna for cognitive radio MIMO applications to avoid the complexities involved in reconfigurable antennas and improve the spectrum utilization efficiency. Design/methodology/approach The proposed MIMO antenna system comprises a wideband antenna that operates at 2 GHz–12 GHz for sensing the spectrum and four pairs of antennas for communication, which are single and dual-band antennas. Each pair of antennas meant for communication consists of two similar antennas. Moreover, the antennas meant for communication cover 93% of the bandwidth of the sensing antenna. Findings The first pair of antennas accessible at ports P2 and P6 and the second pair of antennas accessible at ports P4 and P8, which are dual-band antennas, operate at 3.05 GHz–3.85 GHz, 5.8 GHz–8 GHz and 2.05 GHz–2.55 GHz, 4.7 GHz–6.1 GHz, respectively. While the third pair of antennas accessible at ports P3 and P7 and the fourth pair of antennas accessible at ports P5 and P9 are single-band antennas and operate at 3.85 GHz–4.7 GHz and 8 GHz–11 GHz, respectively. Minimum isolations of 20 dB and 15 dB are attained between every two similar antennas for communication and between the sensing antenna and the antennas meant for communication, respectively. The correctness of the proposed antenna is verified with a fine match between the results obtained from simulations and measurements. Originality/value The proposed MIMO antenna possesses salient features, such as polarization diversity and performing a maximum of four communication tasks when all the white spaces are detected.

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Two-Port MIMO Wide-Band Antenna With Two-Port MIMO Reconfigurable Antenna for Cognitive Radio Platforms

Cited by 12 publications

References 12 publications

A Five-Port Integrated Planar Ultra Wideband and Narrowband Antennas System Using Excitation Switching Reconfigurable Technique for Cognitive Radio Applications

A Five-Port Integrated Planar Ultra Wideband and Narrowband Antennas System Using Excitation Switching Reconfigurable Technique for Cognitive Radio Applications

Beam Steering Investigation on Multiple Antenna System using Radiation Pattern Reconfigurable Array

A new two-element MIMO antenna system for cognitive radio applications

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