A Switchable Band-Notched UWB Antenna for Cognitive Radio Applications

Sharbati, Vahid; Rezaei, Pejman; Fakharian, Mohammad M.; Beiranvand, Ehsan

doi:10.1080/03772063.2015.1025108

Cited by 8 publications

(5 citation statements)

References 15 publications

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“…To avoid interference with the licensed bands, multiple band‐notch techniques are necessary for the UWB structure. They include fractals, slots, metamaterials, parasitic elements, and electromagnetic bandgap structures (EBG) 18–22 . Most designs in the literature 18,19 have more than one notch band.…”

Section: Introductionmentioning

confidence: 99%

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Compact reconfigurable antenna system for spectrum interweaved cognitive radio

Parida

Sahu

Naik

et al. 2022

Int J RF Mic Comp-Aid Eng

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This article discusses the design of a compact antenna system for spectrum interweaved cognitive radio (CR). The system consists of a sensing filtenna and three communicating antennas. The sensing ultra‐wideband (UWB) antenna is a coplanar‐waveguide (CPW)‐fed monopole (2.2–11 GHz). The narrowband communicating patch antennas are reconfigurable through a switching mechanism, operating in six different frequency bands (5.54, 6.12, 7.60, 8.25, 9.64, and 10.29 GHz). To block the Wi‐MAX and WLAN bands, the proposed design uses a meandering slot and a stepped U‐slot in the monopole. Analysis of communicating antennas using the theory of characteristic mode analysis indicates good radiation in the desired frequencies. Isolation among these antennas is better than −18 dB. A constant group delay and linear phase response indicate a good time‐domain performance of the proposed UWB antenna. Simulated results match closely with those from measurements on the prototype. The proposed antenna system can find applications in various sectors adopting CR like internet of things.

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Section: Introductionmentioning

confidence: 99%

“…They include fractals, slots, metamaterials, parasitic elements, and electromagnetic bandgap structures (EBG). [18][19][20][21][22] Most designs in the literature 18,19 have more than one notch band. Many of these notches have a bandwidth of 1 GHz or more.…”

Section: Introductionmentioning

confidence: 99%

Compact reconfigurable antenna system for spectrum interweaved cognitive radio

Parida

Sahu

Naik

et al. 2022

Int J RF Mic Comp-Aid Eng

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“…It is a well-known fact that these antennas present appealing features, such as effortless design and manufacture, compact size, simple structure, using multiple frequency bands and more economical. Reconfigurable antennas are extremely attractive to be used in integrated circuits applications [6][7][8][9]. In order to create multiband antennas, several techniques such as cutting slots on the metal parts of the antenna or using multiple radiating sections has been proposed recently [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Small Square Reconfigurable Antenna with Switchable Single/Tri-Band Functions

Kakhki¹,

Rezaei²,

Sharbati³

et al. 2016

RADIOENGINEERING

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A novel frequency reconfigurable slot antenna for suitable switchable radiations at WLAN and a tri-band at Bluetooth, WiMAX and upper WLAN applications is designed and fabricated. Switchable frequency responses are achieved by implementation of a PIN diode within the antenna ground plane. The antenna structure consists of a square radiation patch with an E-shaped slot, a modified ground plane with an inverted T-shaped strip that acts as a parasitic stub and two parallel slots and a protruded strip which is connected to the parasitic stub with a PIN diode. The presented antenna has a compact size of 20 × 20 mm 2 while providing switchable radiations at 2.

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“…The third switch is embedded among the square ring shaped-slot to filter the X-band. In comparison with the presented antennas in [3][4][5][6][7][8][9][10][11][12][13][14], the proposed antenna is compact and uses varied and simple methods to generate single or double notch bands.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, UWB antennas with band-notched characteristics to filter this potential interference are desirable. Recently, the various techniques have been applied to design UWB antennas with band-notch characteristics [3][4][5][6][7][8][9][10][11]. These include embedment of different slots on the ground plane or on the radiating patch, use of parasitic elements patches, etching of split-ring resonators, use of tuning stubs, meandering of ground plane and so on [3][4][5].…”

Section: Introductionmentioning

confidence: 99%