High-order mode single-pulse antenna based on substrate integrated waveguide
A substrate-integrated waveguide and high-order mode technology, applied in waveguides, antennas, waveguide-type devices, etc., can solve the problems of antenna performance impact, low aperture efficiency, complex feeding network, etc. The effect of simple electrical structure
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[0022] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0023] like figure 1 As shown, a high-order mode monopulse antenna based on a substrate-integrated waveguide includes, from top to bottom, a feeding network 1, an upper dielectric substrate 2, and a substrate-integrated waveguide cavity. The substrate-integrated waveguide cavity is sequentially composed of an intermediate metal plate 3 , a bottom dielectric substrate 4 and a metal base plate 5 from top to bottom. Radiation slots 9 and feed slots 6 are provided on the middle metal plate 3, and the first metal vias 7 and the second metal vias 8 run through the entire substrate integrated waveguide cavity.
[0024] The feed network includes differential port networks ( figure 1 right port network) and and port network ( figure 1 port network on the left side), the substrate integrated waveguide cavity is divided into...
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