Callisto

Products Overview

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

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

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

Frequency Bands*

Noise Temperatures

Gain

Input Configurations

Cooling System

Ultra
Ultra Cryo LNA

S-Band [2.2 - 2.3] GHz
X-Band [8.4 - 8.5] GHz
Ka-Band [25.5 - 27.0] GHz
Ka-Band [31.8 - 32.3] GHz
10K
11K
28K
30K


> 55dB

Waveguide Input:
Single, Dual or Tri-Band


GM 15K

Ultra-Wideband
Ultra QRFH Cryo LNA


[2.3 - 14] GHz
S, C, X and Ku Bands


< 20K


> 55dB

Integrated Feed:
QRFH
(VLBI - Radio Astronomy)


GM 15K

Compact
Compact Cryo LNA


X-Band [7.25 - 8.50] GHz
K-Band [18.2 - 21.2] GHz
Ka-Band [25.5 - 27] GHz

< 20K
35K
50K


> 50dB

Waveguide Input:
Single or Dual Channel


Stirling 80K

Compact-Wideband
Compact QRFH Cryo LNA


[2.3 - 14] GHz
S, C, X and Ku Bands


< 40K


> 55dB

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 20GHz Waveguide LNA
Waveguide Ambient LNA



K-Band [18.2 - 21.2] GHz


1.65dB NF max (1.5dB mean)
3.0dB NF max 135K NT max (120K mean)


48dB min

Ka-Band 26GHz Waveguide LNA
Waveguide Ambient LNA



Ka-Band [25.5 - 27.0] GHz


1.8dB NF max
150K NT max


43dB min

Wideband Coaxial LNA
Wideband Coaxial LNA



Wideband [12 - 32] GHz


2.2dB NF max [19 - 28] GHz
3.0dB NF max [12 - 32] GHz


25dB min

MMIC Circuit
MMIC Circuit



K-Band [18.2 - 21.2] GHz


1.3dB NF max


29dB min
*Extended frequency ranges are available - contact us for the corresponding NT performance details.

Product Category

Frequency Bands

Notes

LNA Redundancy
Controller System

LNA Redundancy System


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