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Automotive-grade RF circulator isolator for vehicle radar

Time:2025-11-25 Views:1

  Core Positioning: The Signal "Directional Valve" and "Interference Resistance Shield" of Automotive Radar

  In intelligent driving scenarios such as Adaptive Cruise Control (ACC), Automatic Emergency Braking (AEB), and Blind Spot Detection (BSD), the signal purity of automotive radar (mainstream frequency bands of 77GHz/79GHz) directly determines driving safety. Automotive-grade RF circulators/isolators, as core passive components, suppress reverse interference through unidirectional signal transmission, building a "signal moat" for the radar module and ensuring target detection accuracy and response speed. Three core automotive-grade advantages, adaptable to demanding automotive scenarios: All-environment reliability: withstands extreme vehicle operating conditions; meets AEC-Q200 automotive-grade certification, operating temperature range -40℃~125℃, easily coping with high-temperature exposure and low-temperature freezing; vibration resistance (10~2000Hz, 196m/s²) and shock resistance (500m/s², 1ms), adapting to whole-vehicle bump and collision test standards; moisture resistance rating IP6K9K, resisting corrosion from rain, snow, fog, and other humid environments, with a lifespan exceeding 10,000 hours. Superior RF Performance: Ensuring Radar Detection Accuracy

  Isolation ≥25dB, effectively suppressing signal crosstalk between the transmitter (TX) and receiver (RX), reducing false alarm rate;

  Insertion loss ≤0.6dB, reducing signal attenuation and extending radar detection range (supporting detection up to 200m+);

  VSWR ≤1.3, ensuring signal matching and improving target recognition resolution (can identify targets as small as 10cm).

  High Compatibility: Adapting to Mainstream Automotive Radar Architectures

  Frequency band coverage 76~81GHz (core frequency band for automotive millimeter-wave radar), compatible with single-chip radar and multi-channel MIMO radar designs;

  Packaging supports SMT surface mount (minimum size 3.2×3.2mm) and metal housing packaging, adapting to the miniaturization requirements of radar modules;

  Customizable impedance (50Ω/75Ω) and interface type (SMA/MMCX) to meet the radar solution requirements of different automakers. Empowering Intelligent Driving: A Key Link from "Perception" to "Safety" Whether it's the "real-time environmental perception" of L2+ level assisted driving or the "redundant safety design" of L4 level autonomous driving, automotive-grade radio frequency circulators/isolators play the role of "signal steward" in radar systems: Reducing electromagnetic interference (EMC) in multi-radar collaboration (such as forward + side and rear radar), complying with ISO 11452-2 electromagnetic compatibility standards; Ensuring stable signal transmission guarantees radar detection stability at high speeds (120km/h+) and in complex road conditions (congestion, curves), reducing the risk of rear-end collisions and lane change collisions.

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