Radar Antenna Board

A 4-layer hybrid radar antenna board combining Rogers RO3003 high-frequency laminate with FR-4 cores, 1.19±0.12mm thick, minimum drilled hole φ0.20mm and minimum through-hole copper of 18μm. The Rogers RO3003 outer layer carries the radiating patch elements and feed network, where its low and stable dielectric constant and very low loss tangent keep antenna gain consistent and beam patterns predictable across the full automotive radar band and into the 77 GHz region. The inner FR-4 layers handle DC, control, and lower-speed signals, which keeps total board cost in line with automotive-volume programs. The construction supports plated through holes for ground stitching and via fences around the antenna structures. Typical fits are 24 GHz and 77 GHz automotive radar sensor boards, drone radar altimeters, weather radar antenna panels, and radar test fixtures.