Reconfigurable Filtennas and MIMO in Cognitive Radio Applications

Tawk, Y.; Costantine, J.; Christodoulou, C.G.

doi:10.1109/tap.2013.2280299

Cited by 83 publications

(31 citation statements)

References 19 publications

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“…Various antenna systems can be proposed for cognitive radio applications (Tawk et al 2014b). However, it is critical to understand that adding cognition to antenna systems and allowing them to communicate over unused frequency gaps do not solve all other issues in the spectrum.…”

Section: Reconfigurable Antennas For Mimo-based Cognitive Radio Applimentioning

confidence: 99%

“…A MIMObased antenna can be proposed for cognitive radio applications as shown in Fig. 11 (Tawk et al 2014b). The reason behind adopting a MIMO-based antenna for cognitive radio is to combat fading, ensure reliable communication between the end users, and improve spectrum usage efficiency.…”

Section: Reconfigurable Antennas For Mimo-based Cognitive Radio Applimentioning

confidence: 99%

“…11 consists of two sensing antennas as well as two reconfigurable "filtennas" packed all together on the same substrate (Tawk et al 2014b). The reconfigurable antennas resort to PIN diodes to tune their frequency band-pass operation.…”

Section: Reconfigurable Antennas For Mimo-based Cognitive Radio Applimentioning

confidence: 99%

“…7. The evaluation of the performance of the proposed antenna systems in mitigating fading in a rich multipath environment is done by observing the values of the envelope correlation coefficient r e and the mean effective gain (MEG) (Vaughan and Andersen 1987;Tawk et al 2014b). …”

Section: Reconfigurable Antennas For Mimo-based Cognitive Radio Applimentioning

confidence: 99%

See 3 more Smart Citations

Reconfigurable Antennas and Their Applications

Costantine¹,

Tawk²,

Christodoulou³

2015

Handbook of Antenna Technologies

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In this chapter, a summary of the various components, categorization, and design process of reconfigurable antennas is presented. The various applications where reconfigurable antennas have been implemented and the association of various antenna properties with new communication applications are discussed. The chapter takes into consideration new and evolving applications and associate novel antenna designs with these applications. The control, modeling, and optimization of reconfigurable antennas are also detailed and multiple mechanisms are presented. Finally this chapter emphasizes on the development of reconfigurable antennas to service futuristic and evolving practical wireless communication applications and propose optimal solutions for more efficient and holistic designs.

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Section: Reconfigurable Antennas For Mimo-based Cognitive Radio Applimentioning

confidence: 99%

Section: Reconfigurable Antennas For Mimo-based Cognitive Radio Applimentioning

confidence: 99%

Section: Reconfigurable Antennas For Mimo-based Cognitive Radio Applimentioning

confidence: 99%

Section: Reconfigurable Antennas For Mimo-based Cognitive Radio Applimentioning

confidence: 99%

See 2 more Smart Citations

Reconfigurable Antennas and Their Applications

Costantine¹,

Tawk²,

Christodoulou³

2015

Handbook of Antenna Technologies

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“…The reconfigurable communication antenna was covering several frequency bands in the frequency range from 0.7 GHz to 3 GHz while the sensing antenna covered a very wide range of frequency bands from 0.71 to 3.6 GHz. In [9], monopole based reconfigurable MIMO filtenna was presented for CR applications along with sensing antenna for interweave and underlay CR systems. Both the sensing and the reconfigurable antennas were designed for the frequency range 3∼6 GHz with board dimensions of 70×80 mm 2 .…”

Section: Introductionmentioning

confidence: 99%

An Integrated Four-Element Slot-Based MIMO and a UWB Sensing Antenna System for CR Platforms

Hussain

Sharawi

Shamim

2018

IEEE Trans. Antennas Propagat.

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Abstract-This paper presents a novel integrated antenna system for cognitive radio (CR) applications. The design consists of a compact 4-element reconfigurable annular slot based multiple-input-multiple-output (MIMO) antenna system integrated within an ultra-wide-band (UWB) sensing antenna. All the antenna elements are planar in structure and designed on a single substrate (RO-4350) with dimensions 60×120×1.5 mm 3 . The frequency reconfigurable slot based MIMO antenna system is tuned over a wide frequency band from 1.77 GHz to 2.51 GHz while the UWB sensing antenna is covering from 0.75∼7.65 GHz The proposed antenna system is suitable for CR enabled wireless devices. The envelope correlation coefficient (ECC) did not exceed 0.248 in the entire operating band of the MIMO antenna part. The maximum measured gain of the MIMO antenna is 3.2 dBi with maximum efficiency of 81%.

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Reconfigurable Antennas

Suman

2021

Next‐Generation Antennas

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Reconfigurable Filtennas and MIMO in Cognitive Radio Applications

Cited by 83 publications

References 19 publications

Reconfigurable Antennas and Their Applications

Reconfigurable Antennas and Their Applications

An Integrated Four-Element Slot-Based MIMO and a UWB Sensing Antenna System for CR Platforms

Reconfigurable Antennas

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