Quad‐polarization reconfigurable antenna with wideband operation

A design for quad‐polarization‐agile antenna is described. A multiport crossed dipole that can provide dual orthogonal linear polarizations is used as the radiating element of the design. When the crossed dipole is fed with a tunable power divider, the two linear polarization radiations can be simul...

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Bibliographic Details
Published in:Microwave and optical technology letters 2019-09, Vol.61 (9), p.2080-2087
Main Authors: Wu, Hsing‐Fu, Wei, You‐Heng, Chen, Tsair‐Rong, Row, Jeen‐Sheen
Format: Article
Language:English
Subjects:
Antenna radiation patterns
Antennas
Bandwidths
Broadband
Circular polarization
crossed dipole
Dipoles
Linear polarization
polarization reconfigurable antenna
Reconfiguration
tunable power divider
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Description
Summary:A design for quad‐polarization‐agile antenna is described. A multiport crossed dipole that can provide dual orthogonal linear polarizations is used as the radiating element of the design. When the crossed dipole is fed with a tunable power divider, the two linear polarization radiations can be simultaneously excited with same amplitudes and difference phases. The resultant polarization modes include ±45° linear polarizations, right‐handed circular polarization, and left‐handed circular polarization. The overlapped operation bandwidth of the four polarization modes is about 49%, and the antenna operating in each polarization mode has almost the same radiation patterns. These patterns are also stable against frequency. Moreover, the occupied area of the polarization reconfigurable antenna is about 0.43λ0 × 0.43λ0.
ISSN:0895-2477
1098-2760
DOI:10.1002/mop.31865