Microstrip line coupled feeding broadband circularly polarized eight-arm slot helical antenna
A technology of helical antenna and coupling feeding, applied in the field of satellite navigation, can solve the problems of insufficient gain bandwidth range and complicated feeding method of helical antenna, and achieve the effect of improving the gain bandwidth range and stable antenna performance.
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[0036] The following are specific embodiments of the present invention and in conjunction with the accompanying drawings, the technical solutions of the present invention are further described, but the present invention is not limited to these embodiments.
[0037] Such as Figure 1-4 As shown, the broadband circularly polarized eight-arm slot helical antenna fed by microstrip line coupling includes a ground plate 4, and a helical antenna body 1 fixed on the ground plate 4, and the helical antenna body 1 includes Surrounding the closed dielectric layer 11, the outer surface of the dielectric layer 11 is provided with a metal layer 12, and the metal layer 12 is hollowed out and grooved to form a slot helical antenna 2. The number of the slot helical antennas 2 is eight, and all the slots The helical antenna 2 evenly surrounds the entire dielectric layer 11; the inner surface of the dielectric layer 11 is provided with a microstrip feeder 3, and the microstrip feeder 3 is connec...
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