This document describes the features and performance parameters of the RD35HUF2 single-stage amplifier evaluation board, including frequency range, input power, output power, and adjacent channel power ratio.
This application note (AN‑UHF‑127) describes the RD35HUF2 single‑stage RF power amplifier evaluation board produced by Mitsubishi Electric. It provides the circuit schematic, PCB layout, component list, land‑pattern dimensions, thermal design guidelines, and measured RF characteristics.
Key sections include the equivalent circuitry, detailed PCB dimensions, a full component bill of materials, heat‑sink thermal calculations, and performance graphs such as frequency response, output power versus drain efficiency, and DC power‑supply requirements.
| Frequency range | 380‑430 MHz |
|---|---|
| Typical input power | 3 W |
| Typical output power | 46 W |
| Adjacent channel power ratio | -42.5 dBc @ 17.7 W (42.5 dBm) |
| Modulation | 1/4 DQPSK, 18 kbps, a=0.35, BW=18 kHz, spacing=25 kHz |
| Quiescent current | 700 mA |
| Operating current (46 W output) | 6.4 A |
| Thermal resistance of heat sink (recommended) | < 1.2 °C/W |
The board operates from 380 MHz to 430 MHz.
The typical output power is 46 W.
The quiescent current is 700 mA.