| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2020: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
Fiscal Year 2019: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2018: ¥10,140,000 (Direct Cost: ¥7,800,000、Indirect Cost: ¥2,340,000)
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| Outline of Final Research Achievements |
A two-dimensional Rotman-lens multi-beam array-antenna was developed by using five-layer substrates of fluoro-carbon resin film with 1 mm thickness. Following three techniques are developed; (1) a two-dimensional Rotman-lens in which an H-plane Rotman-lens for power distribution for each layer and an E-plane Rotman-lens for power distribution in the layer direction, (2) a transmission-line transitions from a hollow waveguide on the back to a substrate integrated waveguide in each layer, (3) a radiating slot element that radiates from each layer of the multilayer substrate integrated waveguide.
It was confirmed both by electromagnetic simulation and experiment that 9 multi-beams can be generated with 3 beams each with a pitch of about 25 degrees on the horizontal plane and a pitch of about 12 degrees on the vertical plane.
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