Multiple controllable band Notch butterfly shaped Monopole UWB antenna for cognitive radio

Golliwar, Anuja V.; Narlawar, Milind S.

doi:10.1109/startup.2016.7583944

Cited by 3 publications

(5 citation statements)

References 7 publications

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“…The 2 nd category of designs are reported which consists of both the RF sensing and communicating parts incorporated in the same substrate, but as separate antennas [11,15,31,32,37,41,42,45,49,53,54]. The 3 rd category is found to be single structures that carry out both the RF sensing and RF transmission/reception by their own [12,16,30,33,36,40,43,44,51].…”

Section: Figurementioning

confidence: 99%

“…The top and bottom views of the antenna are shown in Figure 8a and 8b, respectively. A number of antennas with reconfigurable section that can be realized by electronic switches, but not specified the type of switches are reported [34][35][36][37]. An antenna with a circular ring structure working in the fundamental mode, TM11 is detailed in [34].…”

Section: Electrical Reconfiguration Based On Fet Switchesmentioning

confidence: 99%

“…The rectangular patch is provided with 4 slots cut at the corner, which will lead to electrical length variation of the antenna that affects the resonant frequencies. A butterfly-shaped monopole antenna with UWB characteristics and reconfigurable notches is reported in [36]. The notches are obtained by introducing circular split ring pairs on the radiating patch.…”

Section: Electrical Reconfiguration Based On Fet Switchesmentioning

confidence: 99%

“…The comparison of the referred antennas such as, the antenna dimension, UWB coverage by the antenna in GHz, Different NBs the antenna covers by frequency reconfiguration are listed in Table 1. It can be observed that even though some antennas, [15][16][17][18][19]22,28,33,34,36,37] cover the entire UWB, those cannot fully cover the UWB as NBs, through reconfiguration.…”

Section: Electrical Reconfiguration Based On Fet Switchesmentioning

confidence: 99%

“…[12] 30×30×1.6×10 3 3.2 to 12 3.3 to 4.1 [13] 60×60×1.6×10 3 NA 10.2, 5 and 3.8 [14] 120 mm × 100 mm × t1 = 10 mm, t2 = [36] 33×24×1.6×10 3 3.1 to 10.7 3.31 to 3.74, 5.03 to 5.94 [37] 50×50×1.6×10 3…”

Section: Antenna Dimension Uwb Coverage (Ghz) Nb Coverage (Ghz)mentioning

confidence: 99%

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Antenna Reconfiguration Techniques for Cognitive Radio: A Review

Cleetus

Bala

2020

Walailak J Sci & Tech

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As the usage of wireless communicative devices is multiplying day by day, the need for the occupiable radio spectrum is also increasing. The inefficiency in the exploration of available licensed radio spectrum has rerouted the focus to effectively use it against the increasing demand. One of the available methods is to implement Cognitive Radio (CR) technology. The Cognitive Radio uses 2 antennas at a time in order to scan and to communicate with the available spectrum. While an Ultrawideband (UWB) antenna scans the spectrum for unused bands of frequencies, Narrowband (NB) antennas communicate with these sensed unused bands. The technique of Reconfiguration in antennas is found to have a major role in implementing these UWB/NB antennas for CRs. Here in this paper, a survey is conducted on various reconfiguration techniques in antennas to build up a CR system. Each technique is studied in terms of the compactness, novelty, coverage of frequencies, and losses associated with the antenna. Finally, all the techniques are compared on the basis of their merits and demerits in this work.

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