Switchable wideband-narrowband tapered slot antenna

Hamid, M. R.; Gardner, P.; Hall, Peter; Ghanem, F.

doi:10.1109/lapc.2009.5352429

Cited by 7 publications

(2 citation statements)

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“…With the development of wireless communications, spectral resource requirements have become increasingly important. The contribution of cognitive radio and the use of reconfigurable antennas made it possible to optimize the use of the electromagnetic spectrum [1, 2]. Users can now use the other unused frequency bands at a time t in the day in addition to dedicated bands without harming the primary users of these bands, allowing better spectrum resource management and a high level of quality service regardless the time of the day.…”

Section: Introductionmentioning

confidence: 99%

Frequency reconfigurable antenna for cognitive radios with sequential UWB mode of perception and multiband mode of operation

Mansoul

Ghanem²

2018

Int. J. Microw. Wireless Technol.

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In this work, an UWB/narrow band reconfigurable elliptical-shaped monopole antenna for cognitive radio applications with sequential perception and operation modes is presented. The proposed approach consists in integrating a reconfigurable filter, in an UWB antenna ground plan, by the mean of four horizontal slots and integrated switches that allow inserting/removing/varying zeros and poles in the frequency response. By acting on the slot lengths in order to alter their resonance frequencies, the different switch configurations allow the antenna to switch between an UWB mode that could be used for the perception (sensing) and different narrowband modes, mono-band and dual-band, that could be used for the operation at 2.4 or/and 3.5 GHz. To validate the concept, an experimental prototype has been fabricated and a good agreement between the simulated and the measured S-parameters has been obtained. While the presented work uses the presence/absence of a perfect conductive strip (PEC) to model real switch operation, it is believed that the obtained results conjugated with previous work using real switches on a very similar structure allows validating approach.

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Section: Introductionmentioning

confidence: 99%

Frequency reconfigurable antenna for cognitive radios with sequential UWB mode of perception and multiband mode of operation

Mansoul

Ghanem²

2018

Int. J. Microw. Wireless Technol.

View full text Add to dashboard Cite

show abstract

“…The dynamically reconfigurable antenna can be comprehended via RF switches such as PIN diodes, MEMs and GaAs FETs. By changing the switch state to either "ON" or "OFF" mode, these elements capable for frequency tuning [1][2][3][4][5] and practical for impedance matching devices [6][7]. This paper introduces the concept of frequency reconfigurable antenna bandwidth control and the merit of using frequency-reconfigurable antennas.…”

Section: Introductionmentioning

confidence: 99%