6-18GHz 50W Wideband RF Power Amplifier for Microwave Link Validation
A 6-18GHz wideband RF power amplifier delivering typical 50W saturated output for microwave link validation, laboratory RF testing and system integration. It provides 47dB typical gain, 50-ohm interfaces and 28V DC operation.
This amplifier covers the complete 6–18 GHz microwave range in one unit. It is intended for engineers who need a stable wideband power stage during link validation, receiver and transmitter evaluation, component characterization, production testing and controlled system integration. The typical saturated output is 50 W, while the typical small-signal gain is 47 dB.
The RF path uses 50-ohm interfaces. The input is fitted with an SMA-K connector and the higher-power output uses an N-K connector. A DSUB 4W4 male connector supplies DC power: contacts A1 and A2 accept +28 V, while A3 and A4 are ground. Correct polarity, cable sizing and grounding should be confirmed before energizing the amplifier.
Electrical and Mechanical Specifications
| Parameter | Specification |
|---|---|
| Frequency range | 6–18 GHz |
| Saturated output power | 50 W typical |
| Small-signal gain | 47 dB typical |
| Rated input level | 0 dBm |
| Gain flatness | ±3 dB |
| Spurious emissions | -50 dBc at 47 dBm output |
| Harmonics | -20 dBc typical, -10 dBc maximum |
| Input VSWR | 2.0 maximum |
| RF impedance | 50 ohm |
| Supply voltage | 28 V DC typical, 30 V maximum |
| Power consumption | 320 W typical, 400 W maximum |
| Operating temperature | -20 to +55 °C |
| Dimensions | 300 × 150 × 50 mm |
| Weight | ≤ 8 kg |
| RF input connector | SMA-K |
| RF output connector | N-K |
| DC/control connector | DSUB 4W4 male; A1/A2: +28 V, A3/A4: GND |
| Thermal requirement | External radiator is required |
Integration and Thermal Management
The amplifier requires an external radiator. The integrator should mount the enclosure to a suitable heat-dissipation surface and verify temperature under the intended duty cycle before continuous operation. The typical DC power consumption is 320 W and the specified maximum is 400 W, so the DC source and wiring should provide adequate current margin.
For measurement work, use properly rated attenuators, couplers, loads and test instruments. Confirm that every component in the output path can withstand the expected RF level. Apply the RF drive only after the power, grounding and thermal interfaces have been checked. The rated input level is 0 dBm and the maximum input VSWR is 2.0.
Typical Applications
- Microwave wideband link validation and engineering trials
- Laboratory RF source amplification and component characterization
- Receiver, transmitter and antenna-system evaluation
- Production test fixtures and automated RF verification
- OEM integration where 6–18 GHz coverage and 50 W output are required
System performance depends on the complete RF chain, thermal design, cabling and operating conditions. Final integration should be verified with calibrated instruments and the applicable project documentation.
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