A Compact Tri-Frequency and Tri-Polarization Combination Antenna

In this paper, a combination antenna which integrates tri-frequency bands and tri-polarizations is presented. They are L-band circular polarization antenna, S-band omnidirectional antenna, and C-band wide beam antenna. Among them, the L-band right-handed circularly polarized antenna adopts the form of four-point coupled feed microstrip to realize the wideband impedance and Axial Ratio (AR), which can be applied to GPS, Beidou, Galileo and GLONASS navigation systems. The vertically polarized S-band antenna is realized through a printed monopole design, while the C-band wide-beam antenna adopts a dipole configuration with a parasitic element.