HE397B-2 is a RF/microwave integrated amplifier produced by Shijiazhuang Huabei Microwave Electronic Co., LTD., with a frequency range of 20-3600MHz, working temperature of -55℃-+85℃, active bias design providing temperature compensation, good 50Ω impedance matching, easy to cascade.
The E397B-2 is an integrated broadband amplifier covering a frequency range of 20 MHz to 3600 MHz. It features active bias design for temperature compensation, good 50 Ω impedance matching for easy cascading, and a sealed microwave thin‑film circuit for stable performance. The device meets military‑grade temperature conditions from –55 °C to +85 °C.
The manual includes typical gain‑vs‑frequency curves, VSWR plots, and a detailed electrical performance table. It also gives wiring diagrams, static‑sensitive handling precautions, and mechanical dimensions with installation instructions for proper mounting. This manual is written in Chinese.
| Frequency range | 20–3600 MHz |
|---|---|
| Small‑signal power gain | >20.0 dB (typical 22.0 dB) |
| Gain flatness | ≤1.0 dB (typical 0.5 dB) |
| Noise figure | ≤3.0 dB (typical 2.5 dB) |
| Input VSWR | ≤2.0:1 (typical 1.7:1) |
| Output VSWR | ≤2.0:1 (typical 1.7:1) |
| Linear output power | >15.0 dBm (typical 16.5 dBm) |
| Operating current | 85 mA |
| Maximum input power | +10 dBm |
| Operating temperature range | -55 °C to +85 °C |
| Maximum storage temperature | +125 °C |
It operates from 20 MHz up to 3600 MHz.
The device works from –55 °C to +85 °C.
The circuit is static‑sensitive; handle it with anti‑static precautions during use.
Typical small‑signal gain is 22.0 dB, with a minimum specification of greater than 20.0 dB.