Comtech Ka-band 280W 27.5-30 GHz Comtech
The SuperCoolTM family of amplifiers has many practical advantages over traditional air-cooled amplifiers including reduced heat load in hubs; flexible and more compact installation; ease of service and maintenance; higher reliability; ambient noise reduction; and gain stability over ambient temperature.
The new Comtech Xicom design incorporates integrated cooling channels in the amplifier baseplate, external to the sealed high voltage and RF circuitry compartment, with drip-free connections. Elimination of the need for air flow provision dramatically simplifies hub layout and design and provides more space for maintenance operations and additional equipment.
| FREQUENCY RANGE | 27.5 to 31.0 GHz |
| OUTPUT POWER | |
| Traveling Wave | Tube 650W (58.1 dBm) |
| RF Output Limit (PLIMIT) @ Flange | 283W (54.52 dBm) to 333W (54.52 dBm) |
| Optional: 346W (55.4 dBm) to 415W (56.2 dBm) | |
| Linear Power @ Amplifier Flange (PLIN) | 215W (53.33 dBm) |
| GAIN | |
| Large Signal (minimum) | 70 dB |
| Small Signal (minimum) | 70 dB |
| Attenuator range (0.1 dB steps) | 30 dB |
| Maximum SSG Variation Over | |
| Any Narrow Band | 1.0 dB per 250 MHz |
| Any 1 GHz Band (maximum) | 2.5 dB |
| Slope (maximum) | ± 0.04 dB/MHz |
| Stability, 24 hr. (maximum) | ± 0.25 dB |
| Stability, Temperature (maximum) | ± 1.0 dB at any frequency |
| INTERMODULATION (maximum) with two equal carriers | -25 dBc @ PLIN |
| NOISE POWER RATIO | -19 dBc @ PLIN |
| HARMONIC OUTPUT (maximum) with optional harmonic filter | -60 dBc |
| AM/PM Conversion (maximum) | 2 deg/dB @ PLIN |
| NOISE POWER DENSITY (maximum) | |
| Transmit Band | -70 dBW/4 kHz |
| Receive Band (<21.2 GHz) | -150 dBW/4 kHz |
| GROUP DELAY (maximum) | |
| Bandwidth | Any 250 MHz |
| Linear | 0.01 nS/MHz |
| Parabolic | 0.001 nS/MHz2 |
| Ripple | 0.25 nS/Pk-Pk |
| RESIDUAL AM NOISE (maximum) | -50 dBc to 10 kHz |
| -20 (1.5 + logf) dBc 10 to 500 kHz | |
| -85 dBc above 500 kHz | |
| SPURIOUS (in band) Linear | -60 dBc |
| PHASE NOISE (maximum) | |
| 10 Hz | -80 dBc |
| 100 Hz | -85 dBc |
| 1 kHz | -92 dBc |
| 10 kHz | -102 dBc |
| 100 kHz | -115 dBc |
| 1 MHz | -125 dBc |
| VSWR | |
| Input (maximum) | 1.3:1 |
| Output (maximum) | 1.3:1 |
| PRIME POWER | |
| 100 to 264 VAC | |
| 47 to 66 Hz, Single Phase | |
| 1800 VA Typical | |
| 0.95 Min. Prime Power Factor | |
| ENVIRONMENT | |
| NONOPERATING TEMPERATURE RANGE | -50°C to +70°C |
| OPERATING TEMPERATURE RANGE | -40°C to +60°C |
| HUMIDITY | Up to 100% Condensing |
| ALTITUDE | 10,000 feet MSL maximum with standard adiabatic derating |
| SHOCK AND VIBRATION | Normal Transportation |
| COOLING | Liquid Cooled |