Features:
- High Isolation
- Low Insertion Loss
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sales@qualwave.com
Cryogenic Coaxial Isolators
Cryogenic Coaxial Isolators
Cryogenic Coaxial Isolators are specialized non-reciprocal microwave devices designed tooperate at extremely low temperatures (typically liquid helium temperatures, 4K or below). Isolators are two-port devices that allow microwave signals to pass in one direction with minimal loss while providing high attenuation in the reverse direction. This unidirectional behavior is crucial for protecting sensitive components from reflected signals and noise. Incryogenic environments, isolators are essential for applications such as quantumcomputing, superconducting electronics, and low-temperature experiments, where signal integrity andnoise reduction are critical.
Features:
1. Cryogenic Performance: Designed to function reliably at cryogenic temperatures (e.g., 4K, 1K, or even lower). Constructed using materials that maintain their magnetic and electrical properties at lowtemperatures, such as ferrites and superconductors.
2. Low Insertion Loss: Ensures minimal signal attenuation in the forward direction, which is critical for maintaining signal integrity in sensitive applications.
3. High Isolation: Provides excellent attenuation in the reverse direction, preventing reflected signals and noise from interfering with the system.
4. Wide Frequency Range: Supports a broad range of frequencies, typically from a few MHz to several GHz, depending on the design and application.
5. Compact and Lightweight Design: Optimized for integration into cryogenic systems, where spaceand weight are often limited.
6. Low Thermal Load: Minimizes heat transfer to the cryogenic environment, ensuring stableoperation of the cooling system.
7. High Power Handling: Capable of handling significant power levels without performancedegradation, which is important for applications like quantum computing and radio astronomy.
Applications:
1. Quantum Computing: Used in superconducting quantum processors to protect microwave control and readout signals from reflections and noise, ensuring clean signal transmission and reducing decoherence in qubits. Integrated into dilution refrigerators to maintain signal purity at millikelvintemperatures.
2. Superconducting Electronics: Employed in superconducting circuits and sensors to protect sensitivecomponents from reflected signals and noise, ensuring accurate signal processing and measurement.
3. Low-Temperature Experiments: Applied in cryogenic research setups, such as studies of superconductivity or quantum phenomena, to maintain signal clarity and reduce noise.
4. Radio Astronomy: Used in cryogenic receivers of radio telescopes to protect sensitive amplifiers from reflected signals and noise, improving the sensitivity of astronomical observations.
5. Medical Imaging: Utilized in advanced imaging systems like MRI (Magnetic Resonance Imaging) that operate at cryogenic temperatures to enhance signal quality.
6. Space and Satellite Communication: Employed in cryogenic cooling systems of space-basedinstruments to manage signals and improve communication efficiency.
Qualwave supplies cryogenic coaxial isolators in a broad range from 4GHz to 8GHz. Our coaxial isolators are widely used in many areas.
Part Number |
Frequency(GHz, Min.)  |
Frequency(GHz, Max.) |
Bandwidth(MHz, Max.) |
IL(dB, Max.) |
Isolation(dB, Min.) |
VSWR(Max.) |
Fwd Power(W, Max.) |
Rev Power(W) |
Connectors |
Temperature(K) |
Size(mm) |
Lead Time(Weeks) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| QCCI-4000-8000-77-S | 4 | 8 | 4000 | 0.7 | 16 | 1.5 | - | - | SMA | 77 (-196.15℃) | 24.2*25.5*13.7 | 2~4 |
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