HE387A/HEM387A/HES387A integrated broadband amplifier is a temperature-compensated active bias design, with good 50Ω impedance matching and easy cascading. It features a stable and reliable microwave thin-film circuit structure and a standard hermetically sealed tube shell. It meets military temperature working conditions: -55℃～+85℃.
This document describes the integrated broadband amplifier HE387A/HEM387A/HES387A. It outlines the key performance features such as a wide frequency range, good impedance matching, and stable gain across the band.
The manual includes detailed electrical specifications, recommended supply conditions, temperature limits, and mechanical dimensions, as well as guidance for mounting, connector selection, and typical application circuits. This manual is written in Japanese.
| Frequency range | 20‑400 MHz |
|---|---|
| Small‑signal gain (Gp) | ≈25 dB (typical) |
| Output power | 16.5 dBm (typical) |
| Maximum output power | 17 dBm |
| Supply voltage | 12 V |
It operates from 20 MHz up to 400 MHz.
The typical small‑signal gain is about 25 dB.
The device is designed to run from a 12 V supply.
The maximum output power is specified as 17 dBm.