Amplifier High Frequency PCB

An Amplifier RF PCB is a specialized circuit board engineered for RF/microwave power amplifiers (PAs), characterized by:
1. High-power Handling: Delivers 10W~10kW at 0.5-6GHz with ±2% impedance matching
2. Thermal Management: Thermal conductivity >2W/(m·K) (metal-core), handles >100W/cm² power density
3. Signal Integrity: Harmonic distortion <-50dBc, OIP3 >40dBm
4. Stability Assurance: Suppresses oscillation (Rollett factor K >1.5)

Technical Core
Substrates:
Metal-clad boards (Al/Cu base, e.g. Rogers TC)
Ceramic-filled PTFE (e.g. RO4350B™, tanδ<0.0037)
Structures:
High-current traces (≥5mm/10A)
Thermal via arrays (0.3mm dia., >100 vias/cm²)
Ground plane impedance <5mΩ
Circuit Design:
I/O matching networks (π/T-sections)
Anti-oscillation grid/base resistors

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Product Characteristics

High-Power Capacity

Handles 10W~10kW RF power (0.5-6GHz), current density >100A/cm²
Design: 2oz copper+≥5mm trace width per 10A

Ultra-low Thermal Resistance

Metal-core (Al/Cu) conductivity >5W/(m·K)
Thermal via density >150 vias/cm² (0.3mm dia.), thermal resistance <0.3℃/W

Precision Impedance Control

50Ω line tolerance ±1.5% (LDI laser process)
Matching: π/T-network (inductor ±2%, capacitor ±0.5pF)

High Linearity

Harmonic distortion ≤ -50dBc @P1dB
OIP3 >45dBm (e.g. GaN PA@3.5GHz)

Enhanced EMC

Ground plane impedance <3mΩ (2oz copper)
Shielding cavity (depth λ/4), isolation >90dB

Extreme Environment Stability

Operating temp. -55℃~200℃ (ceramic substrates)
Power drift <0.01dB/℃ (RO4350B™)

Product Application Field

5G/6G Base Station PAs

Material: Rogers RO4835™ (0.8W/mK)
Performance: >200W @3.5GHz, ACLR <-45dBc
Structure: Doherty PA + aluminum heatsinks

Satellite Transmitters

Material: AlN ceramic (＞170W/mK)
Spec: Ka-band SSPA, efficiency >55%, phase noise <-110dBc/Hz
Tech: Au80Sn20 bonded GaN dies

Military Radar TX Modules

Material: Rogers TC350™ (metal-clad)
Power: >5kW pulsed @10GHz, 20% duty cycle
Cooling: Microchannel liquid cooling

Industrial RF Energy Systems

Use: Plasma generators / microwave sintering
Param: 10kW @13.56MHz, harmonics <-60dBc
Design: LCLR matching + water-cooled electrodes

Medical Linear Accelerators

Application: Proton therapy RF sources
Target: 50kW @400MHz, stability ±0.01%
Substrate: Beryllia ceramic (330W/mK)

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