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2021-10-10
Multiband Circularly Polarised Microstrip Patch Antenna with Minkowski Fractal Slot for Wireless Communications
By
Progress In Electromagnetics Research C, Vol. 116, 65-80, 2021
Abstract
A multiband circularly polarized microstrip patch antenna including a Minkowski fractal slot for wireless communication applications in the frequency bands 1.39 GHz, 2.45 GHz (WLAN band), 3.48 GHz (Mobile Wi-Max), 5.8 GHz (U-NII high-band) and 6.29 GHz has been proposed. The proposed antenna consists of two substrates mounted on top of the ground plane. The antenna has been fed with a 50 Ω microstripline which is etched on top of the lower substrate. The second iteration Minkowski fractal slot is etched on the truncated square patch which is on top of the upper substrate. The substrate has a size of 80 mm x 82 mm x 1.6 mm. The measured results show that the proposed antenna could excite for five resonant bands of 1.35 GHz, 2.45 GHz, 3.5 GHz, 5.8 GHz and 6.25 GHz and has reflection coefficients of -15 dB for 1.35 GHz, -16 dB for 2.45 GHz, -22 dB for 3.5 GHz, -23 dB for 5.8 GHz and -13 dB for 6.25 GHz as well as an axial ratio bandwidth of 3.42 GHz-3.47 GHz. The maximum gains of the antenna are 5.92 dBi for 1.39 GHz, 6.15 dBi for 2.45 GHz, 8.36 dBi for 3.48 GHz, 9.64 dBi for 5.8 GHz and 6.69 dBi for 6. 29 GHz. The simulations and optimizations have been carried through Computer Simulation Technology Microwave Studio (CST-MWS) software.
Citation
Vijayankutty Remya Manju Abraham Ambalath Parvathy Thomaskutty Mathew , "Multiband Circularly Polarised Microstrip Patch Antenna with Minkowski Fractal Slot for Wireless Communications," Progress In Electromagnetics Research C, Vol. 116, 65-80, 2021.
doi:10.2528/PIERC21072505
http://www.jpier.org/PIERC/pier.php?paper=21072505
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