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AUTHOR(S): Yumi Takizawa, Atsushi Fukasawa
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ABSTRACT This paper describes a novel structure of circular polarization plane antenna. Conventionally z-axis directivity was enhanced by increasing number of antennas. A novel plane array antenna is made by feed- and reactance-elements over a ground plate. A quarter-wavelength stripline with short circuit termination is made of a cylindrical collar connected to the ground plate. This element brings elimination of radiation along x – y plane to enhance z axis directivity. The characteristics of the proposed antenna are shown by 3D computer simulation. 1/3 radiated power was effectively inverted from x – y plane to z axis, and z axis directivity was found 1.2 dB higher than that of the original antenna. This effect contributes to minimize size of array and number of antennas into 2/3. |
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KEYWORDS Circular polarization, plane array antenna, orthogonal arrangement, smoothed routing wire, wideband characteristics |
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Cite this paper Yumi Takizawa, Atsushi Fukasawa. (2018) Circular Polarization Array Antenna with A Grounded Cylindrical Collar for Elimination of Cross-Sectional Radiation. International Journal of Communications, 3, 79-84 |
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