Fractal Reconfigurable Multiband Communicating Antenna for Cognitive Radio
نویسندگان
چکیده
Abstract: A novel antenna structure is proposed by combining the concept of a reconfigurable and fractal with the parasitic elements technique to obtain the multiband frequency reconfigurable antenna. Fractal antenna with triangular slot is designed for operating at multiple frequencies. The integration of PIN diode switches to the antenna changes the frequency of the antenna dynamically. This is done by changing the switch state to either on or off mode. Proposed antenna is designed and simulated in HFSS and parametric analysis has been carried out and fabricated on FR4 substrate. The electrical lengths are varied by operating switches on and off. The proper activation/deactivation of the switches alters the current flow and changes resonance frequency. This paper presents a fabricated compact fractal shaped frequency reconfigurable antenna for multiband operation along with measured results. The proposed antenna is most suitable for Cognitive Radio.
منابع مشابه
Multiband fractal based reconfigurable antenna with introduction of RF MEMS switches for next generation devices
Next generation network’s main requirements are compact size and also support to heterogeneous network. Fractal antennas have useful applications in cellular telephone and microwave communications. Video conferencing, streaming video are main applications that are included in next generation networks and requirements for these applications are high data rates require to have high bandwidth. But...
متن کاملFractal Reconfigurable Antenna
This paper presents the use of PN junction diode on fractal monopole antenna with microstrip line for rreconfigurable multiband antennas. The developed multiband antennas focus on the applications for Wi-Fi, cordless telephone and satellite & radar. A fractal reconfigurable antenna was designed using the known fractal geometry such as Sierpinski gasket is fed by strip line using coaxial feed. A...
متن کاملA low-cost mechanism to reconfigure the operating frequency band of a Vivaldi antenna for cognitive radio and spectrum monitoring applications
A frequency agile Vivaldi antenna whose operating frequency band can be switched between two selected bands is proposed in this paper for spectrum monitoring and cognitive radio applications. A RF switch is introduced into the back-slot of a Vivaldi antenna to allow switching of the operational band. The realised gains of the antenna are 10.5 dBi in the low band around 3.1 GHz, and 12 dBi in hi...
متن کاملAntenna Miniaturization Using Fractals (RESEARCH NOTE)
Antenna Miniaturization Using Fractals Richa Garg, AP ECE Deptt., [email protected], J.C.D.C.O.E., Sirsa ABSTRACTThe use of fractal geometry in designing antenna has been a resent topic of interest. Fractal shape has their own unique characteristics that the improved antenna performance can be achieved without degrading the antenna properties. Modern telecommunication system requires antenn...
متن کاملDesign of A Novel Reconfigurable Fractal Antenna for Multi-Band Application
With advancement in communication technology over the past decade, there is an increasing demand for miniaturization, cost effective, multiband and wideband antennas. Fractal antenna designs can support in meeting these requirements. Though these antennas provide several advantages but at the same time miniaturization and performance of the fractal antennas can be further enhanced using reconfi...
متن کامل