Abstract:A compact, high‐gain 32 × 32‐horn array antenna with wideband and low side‐lobes for millimeter‐wave applications in the E‐band (71–86 GHz) is presented. The antenna is composed of four metallic layer structures under the waveguide‐feeding. The top layer contains the horn elements and the bottom layer is a corporate‐fed network. From top to bottom, the 2 × 2 cavity‐backed sub‐arrays and the T‐shaped waveguide junctions are loaded in the middle layers. The RF signal from the planar 1–256 ways divider is fed to … Show more
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