This application note introduces the characteristics of RD35HUF2 single-stage amplifier, including frequency, input power, output power, quiescent current, operating current, surface-mounted RF power amplifier structure, etc.
This application note provides an overview of the RD35HUF2 single‑stage RF power amplifier evaluation board, covering its frequency range, power levels, and key design features. It includes circuit diagrams, PCB layout drawings, component lists, and thermal design calculations.
The document also presents performance graphs such as DC power supply versus output power, and detailed specifications like board dimensions, substrate thickness, and material properties, helping engineers evaluate and integrate the amplifier into their systems.
| Frequency range | 450‑530 MHz |
|---|---|
| Typical input power | 3 W |
| Typical output power | 40 W |
| Quiescent current | 500 mA |
| Operating current | ≈6 A |
| Board dimensions | 75 mm × 46 mm |
| Er (dielectric constant) at 1 GHz | 4.7 |
| Tanδ at 1 GHz | 0.018 |
| Recommended heat‑sink thermal resistance | < 1.2 °C/W |
The board operates from 450 MHz to 530 MHz.
Typical input power is 3 W and typical output power is 40 W.
The heat sink should have a thermal resistance lower than about 1.2 °C/W.
The board outline is 75.0 mm by 46.0 mm.