Product Characteristics
Antenna RF PCBs are specialized circuit boards designed for radio frequency/microwave applications (typically ≥1GHz), combining signal transmission and electromagnetic wave radiation. Key characteristics:
Material Properties
Substrates: Low-loss dielectrics (e.g., Rogers RO4000®, PTFE-ceramic composites) with Dk=2.2~10.8
Copper: HVLP foil (Ra<0.5μm) to minimize skin effect loss
01
Structural Design
Impedance: Strict 50Ω/75Ω control (±5% tolerance)
Radiators: Embedded patch/PIFA/slot antennas
Grounding: Via fences for surface wave suppression
02
Performance Metrics
Dissipation factor (tanδ) <0.004 @10GHz
Phase stability: TCDk ≤ -30 ppm/℃
Thermal conductivity: 1~4 W/(m·K) (metal-core boards)
03
Applications
5G mmWave communications (24/28/39GHz)
Satellite phased arrays (Ka/Q-band)
Automotive radars (77GHz)
04
Product Application Field
1. Extreme Temperature Conditions, require thermal-stable substrates with low CTE.
1.1 Spacecraft exteriors (-55℃~125℃)
1.2 Automotive engine bays (-40℃~150℃)
2. High-Humidity/Corrosive Settings, utilize low-moisture-absorption substrates (e.g. PTFE) + conformal coating.
2.1 Marine comms equipment (salt spray)
2.2 Tropical base stations (RH>90%)
3. High-EMI Zones, demand EMI shielding & optimized grounding.
3.1 Radar-adjacent electronics
3.2 Medical imaging suites (MRI)
4. High-Mobility Platforms, need robust mechanical design.
4.1 High-speed train comms (vibration 5-2000Hz)
4.2 UAV mmWave radars (shock 50G)
5. Precision Signal Scenarios, depend on Dk stability (ΔDk <0.05).
5.1 Phased array antennas (phase error <2°)
5.2 Satellite crosslinks (Eb/N0 >10dB)
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