Dual-frequency dual-circularly-polarized common-caliber antenna for satellite communication
A dual circular polarization, satellite communication technology, applied in antenna coupling, antenna grounding switch structure connection, radiating element structure and other directions, can solve the problems of low port isolation, large size and space, and achieve simple overall design and light weight. , to achieve the effect of impedance matching
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[0056] as attached Figure 1-6 As shown, this embodiment provides a dual-frequency dual-circular polarization common-aperture antenna for satellite communications, including a first dielectric substrate 1, a second dielectric substrate 2, and a third dielectric substrate 3; the first dielectric substrate 1, The second dielectric substrate 2 and the third dielectric substrate 3 are stacked sequentially from bottom to top; the feeding network structure is printed on the bottom of the first dielectric substrate 1, and the metal ground 12 is printed on the top; low-frequency radiation is printed on the top of the second dielectric substrate 2. In the unit 21, a high-frequency radiation unit 31 is printed on the third dielectric substrate.
[0057] In this embodiment, the feeding network structure printed under the first dielectric substrate includes a low-frequency port feeding network structure and a high-frequency port feeding network structure; wherein, the low-frequency port f...
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