Callisto
Our Products Overview
For large Space Communications, Radio-Astronomy and VLBI Antenna typically 10m+ in diameter. Single, dual, or tri-band channel versions, or Wideband QRFH feed option.
For mid-size Space Communications, Radio-Astronomy and VLBI antenna typically between 20 and 5m+ in diameter. Single or dual-band channel versions, or Wideband QRFH feed option.
Optimized for Next-Generation Satcoms and Earth Observation satellite communication links. State-of-the-art RF low noise and stability performance, with waveguide or coax inputs.
- Available with redundancy system with local or remote (TCP/IP) controller
- Available with redundancy system with local or remote (TCP/IP) controller
Based on leading foundry processes for InP HEMT technology, to deliver optimised Noise, Gain and Input/Output Return Loss performance.
Applications: Telecommunications (Satcom reception systems, phased array antenna); Radar; Instrumentation
Applications: Telecommunications (Satcom reception systems, phased array antenna); Radar; Instrumentation
Automated, Fast & Safe Cryogenic Cycling, for RF, electronic, optical or mechanical components development and reliability test & validation.
Radiometer system for satellite ground systems noise measurement. Precise noise measurement in RF circuits, with typical applications in monitoring reception system noise temperature, antenna G/T measurement and antenna calibration..
Cryogenic LNA Frequency and NT Performance Summary Table
|
PRODUCT CATEGORY |
FREQUENCY BANDS* |
NOISE TEMPERATURES |
INPUT CONFIGURATIONS |
COOLING SYSTEM |
|---|---|---|---|---|
| S-Band (2.2-2.3GHz) X-Band (8.4-8.5GHz) Ka-Band (25.5-27.0GHz) Ka-Band (31.8-32.3GHz) |
10K 11K 28K 30K |
Waveguide Input: Single, dual or tri-band |
GM 15K |
|
2.3-14GHz S, C, X and Ku Bands |
<20K |
Integrated Feed: QRFH (VLBI - Radio Astronomy) |
GM 15K |
|
X-Band (7.25-8.5GHz) K-Band (18.2-21.2GHz) Ka-Band (25.5-27GHz) |
<20K 35K 50K |
Waveguide Input: Single or dual channel |
Stirling 80K |
|
2.3-14GHz S, C, X and Ku Bands |
<40K |
Integrated Feed: QRFH (VLBI - Radio Astronomy) |
Stirling 80K |
*Extended frequency ranges are available - contact us for the corresponding NT performance details
Ambient LNA Frequency and NT Performance Summary Table (And Redundancy Option)
|
PRODUCT CATEGORY |
FREQUENCY BANDS* |
NOISE PERFORMANCE |
GAIN |
|---|---|---|---|
K-Band (18.2-21.2GHz) |
120K NT |
48dB min | |
Ka-Band (25.5-27.0GHz) |
150K NT |
43dB min | |
Wideband (12-32GHz) |
3.0dB NF max (12-32GHz) 2.2dB NF max (19-28GHz) |
25dB min | |
K-Band (18.2-21.2GHz) |
1.3dB NF max |
29dB min |
*Extended frequency ranges are available - contact us for the corresponding NT performance details.
|
PRODUCT CATEGORY |
FREQUENCY BANDS |
NOTES |
|---|---|---|
All LNA band (S, X, K, Ka) |
Callisto is able to offer a solution for controlling RF switching of LNAs for redundancy. The basic controller unit is a 19” rack mountable unit which contains power supplies and control circuits for 2 or 3 LNAs together with the RF switches. The design is modular and can be configured for the customer’s requirements |
