Single-fed dual-bandwidth wave beam circular polarization antenna
A technology of circularly polarized antennas and bandwidth, applied in antennas, antenna grounding devices, and devices that enable antennas to work in different bands at the same time, can solve the problem of increasing the cost of antennas and the difficulty of debugging, limiting the application of satellite communications, and circular polarity It is difficult to realize the characteristics of specialization and other problems, so as to achieve the effect of reducing design cost, simple and flexible design, and compact structure
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[0031] Below in conjunction with embodiment example and accompanying drawing, the present invention will be further described:
[0032] see figure 1 and figure 2 , the single-feed dual-band wide-beam circularly polarized antenna of the present invention includes: a metal floor 1, a double-layer dielectric board 2, two radiation patches 3, a coaxial feed unit 4, a metal bracket 5, and the radiation patch 3 It includes a coupling radiation patch 3a with triangular corners cut off and a main radiation patch 3b. The coupling radiation patch 3a is symmetrically printed on the middle plane of the double-layer dielectric board 2, that is, the lower surface of the upper dielectric board or the bottom of the lower dielectric board. Upper surface; the main radiation patch 3b is printed on the upper surface of the double-layer dielectric board 2 . A complementary split resonant ring 6 is etched on the main radiation patch 3b. The two annular structures of the complementary split reson...
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