2019 IEEE Indian Conference on Antennas and Propogation (InCAP) · 2019 · 14 citations · 11 references
EngineeringElectrical EngineeringAntennasMicrowave EngineeringWireless CommunicationsAntenna BandwidthAntenna DesignAntenna Radiation PatternsMicrostrip AntennasMicrowave AntennasPlanar AntennasBandwidthFractal Antenna DesignFractal AntennasFractal Microstrip AntennasMicrostrip Antenna DesignMonopole AntennasOperational BandwidthReflection Coefficients
In this article, the design of a Pythagorean-tree shaped fractal microstrip antenna is investigated for RFID reader applications. The antenna consists of a fourth-order Pythagorean-tree shaped fractal, a feed-line matched to the radiator, and co-planar waveguide (CPW) line with the filleted ground plane. The monopole antenna provides a wider operational bandwidth from 4.22-7.52 GHz. The use of fractal geometry enhances the bandwidth of the microstrip antenna and reduces the metallic footprint size to a great extent. The simulated reflection coefficients are also validated with measured results. The simulated radiation characteristics demonstrate an omnidirectional pattern with the realized gain of 2.9 dBi at 5.8 GHz. The antenna with an overall dimension of 0.36λ×0.43λ×0.015λ (λ represents the wavelength at 5.8 GHz) covers the entire 5.8 GHz ISM band.
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On the behavior of the Sierpinski multiband fractal antenna
C. Puente-Baliarda, J. Romeu, Rafael Pous et al. · IEEE Transactions on Antennas and Propagation · 1998 · 806 citations · Full text