Cryogenic Attenuators
Cryogenic Attenuators are precision RF and microwave components designed to reduce signal power while maintaining excellent impedance matching and signal integrity at extremely low temperatures. These attenuators are widely used in quantum computing, superconducting circuits, cryogenic measurement systems, particle physics, radio astronomy, satellite communication, aerospace, defense, and advanced scientific research where stable RF performance under cryogenic conditions is essential. At SRFS Teleinfra, we manufacture high-quality Cryogenic Attenuators that deliver low VSWR, excellent return loss, outstanding thermal stability, and highly accurate attenuation values for demanding low-temperature applications.
Our Cryogenic Attenuators are manufactured using premium non-magnetic materials, precision thin-film resistor technology, and advanced machining processes to ensure consistent electrical performance across a wide frequency range. Designed to minimize thermal noise and maintain stable attenuation even at cryogenic temperatures, these attenuators are ideal for dilution refrigerators, quantum processors, RF laboratories, microwave communication systems, and superconducting electronics.
All our Cryogenic Attenuators are manufactured in India under stringent quality control procedures using carefully selected raw materials and advanced manufacturing technologies. Every attenuator undergoes comprehensive electrical and mechanical testing to ensure reliable operation, long service life, and dependable performance for telecom, aerospace, defense, scientific research, and quantum technology applications.
SMA Fixed Attenuator ,DC-27 GHz, 2Watts for Cryogenic Application CAR27SC-XX
What is a Cryogenic Attenuator?
A Cryogenic Attenuator is a fixed RF attenuator specifically engineered to reduce microwave signal levels while operating at extremely low temperatures. Unlike conventional attenuators, cryogenic attenuators are designed to withstand repeated thermal cycling, maintain precise attenuation values, and minimize thermal noise in superconducting and quantum systems.
These attenuators provide accurate impedance matching, reduce unwanted reflections, suppress thermal noise, and improve signal quality in high-frequency RF and microwave systems operating under cryogenic conditions. They are extensively used in quantum computing, dilution refrigerators, radio astronomy, cryogenic test systems, and advanced microwave laboratories.
Types of Cryogenic Attenuators
Fixed Cryogenic Attenuators
Provide precise attenuation values for stable signal level control in cryogenic RF systems.
Low Power Cryogenic Attenuators
Designed for low-power microwave measurements and laboratory testing applications.
Precision Cryogenic Microwave Attenuators
Manufactured with tight electrical tolerances to ensure highly accurate attenuation and excellent repeatability.
Coaxial Cryogenic Attenuators
Available with SMA, 2.92mm, 2.4mm, 1.85mm, SMP, SMPM, and other precision RF interfaces.
Custom Cryogenic Attenuators
Designed according to customer-specific attenuation values, frequency ranges, connector interfaces, and mechanical configurations.
Technical Specifications
Our Cryogenic Attenuators are engineered to deliver reliable RF performance while meeting international microwave quality standards.
Impedance
Standard 50 Ohm impedance for accurate impedance matching and minimal signal reflections.
Frequency Range
Available from DC up to 40 GHz, 50 GHz, or 67 GHz depending on connector type and customer requirements.
Attenuation Values
Available in standard attenuation values including 1 dB, 2 dB, 3 dB, 6 dB, 10 dB, 20 dB, 30 dB, and custom values.
VSWR
Low VSWR for excellent return loss and superior measurement accuracy.
Power Rating
Available in multiple power handling capacities for laboratory, aerospace, defense, and research applications.
Materials
Manufactured using stainless steel, non-magnetic alloys, precision resistor elements, and cryogenic-compatible dielectric materials.
Temperature Range
Designed for reliable operation from room temperature to cryogenic environments with excellent thermal stability.
Compliance
Manufactured according to international RF, microwave, aerospace, defense, and scientific research standards.
Applications of Cryogenic Attenuators
Our Cryogenic Attenuators are widely used in:
- Quantum computing systems
- Dilution refrigerator installations
- Superconducting electronics
- Cryogenic laboratories
- Particle accelerators
- Radio astronomy
- Space research
- Satellite communication
- Aerospace communication systems
- Defense electronics
- RF and microwave laboratories
- Test & measurement equipment
- Microwave calibration systems
- Scientific research institutes
- High-frequency communication systems
Key Performance Factors
Choosing the right Cryogenic Attenuator ensures precise signal control and reliable microwave performance under extremely low temperatures.
- Accurate attenuation values
- Stable 50 Ohm impedance
- Low insertion loss
- Low VSWR
- Excellent return loss
- Superior thermal stability
- Low thermal noise
- High-frequency performance
- Precision mechanical construction
- Cryogenic-compatible materials
- Excellent durability
- Long operational life
High-quality Cryogenic Attenuators improve measurement accuracy, minimize unwanted reflections, reduce thermal noise, and provide reliable signal conditioning for quantum computing, superconducting electronics, aerospace, defense, and cryogenic microwave applications.
Cryogenic Attenuator Specifications
| Product Type | Impedance | Frequency Range | Application |
|---|---|---|---|
| Cryogenic Fixed Attenuator | 50 Ohm | DC to 40 GHz | Quantum Computing Systems |
| Cryogenic Precision Attenuator | 50 Ohm | DC to 40 GHz | RF Test & Measurement |
| Cryogenic Microwave Attenuator | 50 Ohm | DC to 40 GHz | Microwave Signal Conditioning |
| Cryogenic SMA Attenuator | 50 Ohm | DC to 26.5 GHz | Low Temperature RF Systems |
| Cryogenic 2.92mm Attenuator | 50 Ohm | DC to 40 GHz | High Frequency Testing |
| Cryogenic SMP/SMPM Attenuator | 50 Ohm | DC to 65 GHz | Compact RF Modules |
| Low Power Cryogenic Attenuator | 50 Ohm | DC to 40 GHz | Superconducting Electronics |
| High Stability Cryogenic Attenuator | 50 Ohm | DC to 40 GHz | Cryogenic Research Laboratories |
| Ultra Low Noise Cryogenic Attenuator | 50 Ohm | DC to 18 GHz | Dilution Refrigerator Systems |
| Custom Cryogenic RF Attenuator | 50 Ohm | Up to 65 GHz | Aerospace & Defense Applications |
Why Choose us
Precision Cryogenic RF Performance
Our Cryogenic Attenuators are designed to provide highly accurate attenuation values with excellent electrical stability under cryogenic operating conditions.
Low VSWR & Excellent Return Loss
Every attenuator is precision manufactured to minimize reflections and maintain outstanding microwave performance across the operating frequency range.
Premium Quality Manufacturing
Using advanced CNC machining, precision resistor technology, and cryogenic-compatible materials, we manufacture attenuators that deliver consistent long-term reliability.
Manufactured in India
All Cryogenic Attenuators are manufactured in India under strict quality control procedures, ensuring dependable performance, competitive pricing, and timely delivery for domestic and international customers.
Frequently Asked Questions
A Cryogenic Attenuator is an RF and microwave component designed to reduce signal power while maintaining stable electrical performance at extremely low temperatures.
They are commonly used in quantum computing, superconducting circuits, dilution refrigerators, cryogenic laboratories, particle accelerators, aerospace, defense, and scientific research.
Most Cryogenic Attenuators are manufactured with a precision 50 Ohm impedance.
Standard values include 1 dB, 2 dB, 3 dB, 6 dB, 10 dB, 20 dB, and 30 dB, with custom attenuation values available on request.
Depending on the connector interface and design, they can support frequencies from DC up to 67 GHz.
We offer SMA, 2.92mm, 2.4mm, 1.85mm, SMP, SMPM, and customized RF connector options.
They help suppress thermal noise, maintain signal integrity, and protect sensitive superconducting quantum circuits from unwanted microwave interference.
Yes. SRFS Teleinfra manufactures Cryogenic Attenuators in India using premium materials, precision engineering, and comprehensive quality testing.
Yes. We provide customized Cryogenic Attenuators with specific attenuation values, connector configurations, frequency ranges, and mechanical designs.