QRFH Compact Cryogenic Receiver Low Noise Amplifier

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Zero Maintenance Compact Cryo-LNA with Integrated Wideband QRFH Feed

Callisto has launched a breakthrough lower cost "Compact" cryo-LNA version using a zero-maintenance cryo-cooler, with integrated wideband feed (QRFH design).

The product is positioned in particular for VLBI (Very Long Baseline Interferometry) and Radioastronomy applications, with proven performances.

Key Features:

Maintenance Free
Plug and Play (no need for a vacuum pump)
Very Low power Consumption (vs standard cryogenic systems)
Wideband
- From 2.3 to 14GHz* in one single receiver
- 2 RF Polarizations/Channels
- Feed included (CalTech's QRFH design)
Compact System (62xØ38cm; <30kg), including: receiver, cryocooler, compressor, heat exchanger

Specifications

(check our brochure for detailled specification)

Parameter	Specification
Frequency Bands	S, C, X & Ku [2.3 - 14]* GHz * The frequency band can be adapted to customer's needs
Noise Temperature	< 40K
Gain	60dB
Cryo Operation	Continuous, No maintenance

Main Benefits

Wideband and Low Noise
- One receiver covering 12GHz of bandwidth
- Noise temperature < 40K over full band
Zero Maintenance
- Reduce maintenance logistics and costs
- Ideal for operation in remote locations
Very Low Power Consumption
- Reduce energy consumption cost
- Reduce environmental impact
- Ideal for operation in remote locations
Robust to operational constraints
- No need for vacuum pump for coolodown, even after power cut and warmup!