Abstract
A design and simulation of the mode converter antenna (MCA) with right-hand circular polarization, at 10 GHz frequency, is presented. The circularly polarized mode converter antenna (CPMCA) consists of two inner conductors and a body. The TEM mode is converted into a circular polarization TE11 mode, using the inner conductors connecting the coaxial waveguide in two vertical and horizontal directions. The sidelobe level is less than −15 dB at the working frequency. The S11 and axial ratios of the CPMCA are about −16.5 and 0.15 dB, respectively. Also, the axial ratio is in the acceptable range.
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