Abstract
This paper is related to a triple-band circularly polarized (CP) printed antenna with coplanar waveguide feeding. The antenna is composed of an inverted C-shaped monopole, a CPW-fed ground plane with two semi-hexagonal notches and a square ring. By utilizing the inverted C-shaped monopole, CP radiation could be achieved at the lower band first. Then, two semi-hexagonal notches are etched from the ground plane, to obtain wide impedance bandwidth and a CP characteristic at upper band. A square closed loop is introduced at the left side of the patch which gives second wide CP band. The structure leads to simulated impedance bandwidth (IBW < −10 dB) of 8 GHz (1.31–9.31 GHz) with simulated center frequencies of 5.31 GHz, 150.63%. The simulated triple CP and ARBW are 270 MHz (fc = 4.01 GHz, 6.75%), 407 MHz (fc = 6.45 GHz, 6.29%) and 368 MHz (fc = 8.57 GHz, 4.29%), within the range of simulated impedance bandwidth curve. The maximum simulated peak gain is 2.16 dBi at 8.8 GHz. Proposed antenna happens to be suitable for ‘S’ and ‘C’ band wireless communication applications.
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References
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Dhara, R., Jana, S.K., Mitra, M. (2020). CPW-Fed Triple-Band Circularly Polarized Printed Inverted C-Shaped Monopole Antenna with Closed-Loop and Two Semi-hexagonal Notches on Ground Plane. In: Janyani, V., Singh, G., Tiwari, M., Ismail, T. (eds) Optical and Wireless Technologies. Lecture Notes in Electrical Engineering, vol 648. Springer, Singapore. https://doi.org/10.1007/978-981-15-2926-9_19
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DOI: https://doi.org/10.1007/978-981-15-2926-9_19
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