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Circularly Polarized Circular Slot Antenna Array Using Sequentially Rotated Feed Network

Year: 1391
COI: JR_JCESH-1-1_004
Language: EnglishView: 169
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This paper presents the design, simulation, and measurement of two low-cost broadband circularly polarized (CP) printed antennas: a single element and an array at C band. The proposed single element antenna is excited by an L-shaped strip with a tapered end, located along the circular-slot diagonal line in the back plane. From the array experimental results, the 3 dB axial ratio bandwidth can reach as large as 1900 MHz which covers the 4.7 GHz to 6.6 GHz frequency band. In addition, the measured impedance bandwidth for reflection coefficient of less than -10 dB has the bandwidth with the frequency range from 4.2 GHz to 8 GHz (C Band application). The CP element achieves a bandwidth of 16.6% for an axial ratio less than 3 dB. The proposed antenna array can provide a peak gain of about 8.7 dBic at 5.9 GHz. Acceptable agreements between the simulation and measured results validates the proposed design.


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This Paper COI Code is JR_JCESH-1-1_004. Also You can use the following address to link to this article. This link is permanent and is used as an article registration confirmation in the Civilica reference:

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Jalili, F. and Pourahmadazar, J. and Nourinia, J. and Rafii, V.,1391,Circularly Polarized Circular Slot Antenna Array Using Sequentially Rotated Feed Network,

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