[PDF] Top 20 Design of Reconfigurable Band Notches Antenna for Cognitive Radio Applications

... A microstrip transmission line is associated with a split ring resonator (SRR). The incident magnetic field needs to be polarized in the axial direction of the resonator, in this way, the resonator must be etched as ... See full document

... ABSTRACT: Cognitive radio is rapidly shaping the future of wireless ...on antenna design is very critical for the implementation of cognitive ...special antenna is required in ... See full document

... an antenna is achieved through an intentional redistribution of the currents or, equivalently, the electromagnetic fields of the antenna‟s effective aperture, resulting in reversible changes in the ... See full document

... proposed antenna is a frequency reconfigurable antenna which detect the white spaces in the spectrum ie, the unused frequency bands by the primary user in the designed range which is here the Ultra ... See full document

... The Reconfigurable microstrip patch antenna is designed and simulated in ANSYS HFSS simulation ...The antenna achieves reconfigurability at various frequencies with use of switches between the ... See full document

... of reconfigurable antennas, it was first come into sight in ...pattern reconfigurable antenna was designed[4]-[6]. The postulated antenna in the paper is proficient to reconfigurable ... See full document

... We are entering a digital society, where the user in increasingly requiring access to the internet at the touch of a button, at any place and anywhere. This scenario is re- engineering future emerging devices, so that ... See full document

... UWB antenna system is considered one of the most important parts of the UWB ...frequency band from 3.3 GHz to 3.9GHz. This frequency band introduces interference with the UWB ...the antenna ... See full document

... slot antenna is proposed in this paper suited for cognitive radio front end ...The antenna is capable of frequency switching at different frequency bands by changing the resonance length using ... See full document

... dual band notched wide-band antenna that is suitable for underlay and overlay UWB cognitive radio is ...wide-band cognitive radio (UWB-CR) features the use of UWB ... See full document

... proposed Antenna Gain can be improved to increase the distance of ...interest.For cognitive Radio based applications where multiple narrow frequency bands are required for transmitting and ... See full document

... novel design of a triple band-notched UWB microstrip antenna with switchable characteristics for the band ...satisfactory notches at ...dual band notches operating at ... See full document

... reconfigurable antenna design for cognitive radio is presented here and shown in ...hybrid antenna can sense the spectrum from 1 GHz–12 GHz by a semicircular arc with slotted ground type ... See full document

... an antenna can be achieved by changing its characteristics like frequency and radiation ...as cognitive radio which employs reconfigurable narrow band communication and wideband ... See full document

... late, reconfigurable CP radio wires have pulled in huge con- ...the radio wire [10] and it is additionally used to produce the reconfigurable CP microstrip reception apparatus ... See full document

... Volumetric PIFA antenna is used in cognitive public safety radios. MEMS switches are used to achieve frequency reconfiguration. It is operated in two modes. Mode 1 is at active state when two switches are ... See full document

... new antenna can be reconfigured to operate efficiently over a ...The antenna does not provide coverage over the entire band ...operating band. The antenna is based around a cpw-fed ... See full document

... automotive applications [3–5]. Therefore, UWB antenna is well researched, and many low-profile printed antennas have been proposed ...narrow band standards that coexist within the UWB, of which the ... See full document

... UWB technology is currently regarded as a key player for broadband wireless communications in multimedia- rich environments. The UWB signals by definition occupy a bandwidth in excess of 500 MHz, or are such that their ... See full document

... tenna, reconfigurable antenna and combination of them (cognitive ...This design is not a new, it designed and fabricated in another paper but the new modification occurs in ... See full document