SMA Attenuator
SMA Attenuators are precision RF and microwave components designed to reduce signal power while maintaining accurate impedance matching and excellent signal integrity. These attenuators are widely used in RF testing, telecommunications, aerospace, defense, satellite communication, radar systems, wireless communication, and microwave laboratories where precise signal level control is essential. Depending on the design, SMA Attenuators support frequencies from DC up to 18 GHz, 26.5 GHz, and 40 GHz, making them ideal for both commercial and high-frequency microwave applications.
At SRFS Teleinfra, we manufacture premium-quality SMA Attenuators using precision resistive networks, high-grade SMA connectors, and advanced manufacturing processes to ensure low VSWR, excellent return loss, stable attenuation, and long-term reliability. Our attenuators are suitable for RF laboratories, production testing, microwave communication systems, defense electronics, and high-frequency measurement equipment.
All our SMA Attenuators are manufactured in India under stringent quality control procedures using premium raw materials and precision CNC machining. Every attenuator undergoes comprehensive electrical and mechanical testing to ensure consistent attenuation accuracy and dependable RF performance.
What is an SMA Attenuator?
An SMA Attenuator is a passive RF device that reduces the power level of an RF or microwave signal by a fixed attenuation value while maintaining a constant 50 Ohm impedance. It protects sensitive RF equipment from excessive signal levels, minimizes signal reflections, and improves measurement accuracy in RF systems.
SMA Attenuators are commonly used with Vector Network Analyzers (VNAs), spectrum analyzers, signal generators, RF amplifiers, microwave transmitters, and wireless communication equipment.
Technical Specifications
Our SMA Attenuators are engineered to meet demanding RF and microwave performance requirements.
Impedance
Standard 50 Ohm impedance for accurate impedance matching.
Frequency Range
Available from DC to 18 GHz, 26.5 GHz, and 40 GHz depending on the model.
Attenuation Values
Available in:
- 1 dB
- 2 dB
- 3 dB
- 5 dB
- 6 dB
- 10 dB
- 15 dB
- 20 dB
- 30 dB
- 40 dB
- 50 dB
- 60 dB
- Custom Values
Power Rating
Available from 1 Watt to 100 Watts depending on application requirements.
VSWR
Low VSWR for superior return loss and accurate RF measurements.
Connector Interface
Precision SMA Male and Female connector configurations.
Materials
Manufactured using stainless steel, brass, gold-plated beryllium copper contacts, PTFE dielectric, and precision thin-film resistor technology.
Compliance
Manufactured according to international RF and microwave quality standards.
Applications of SMA Attenuators
Our SMA Attenuators are widely used in:
Vector Network Analyzer (VNA) calibration
RF laboratories
Microwave communication systems
Wireless communication
4G & 5G infrastructure
Aerospace communication
Defense electronics
Satellite communication
Radar systems
RF production testing
Test & measurement equipment
Semiconductor testing
Calibration laboratories
Industrial RF systems
Research & Development
Key Performance Features
Choosing the right SMA Attenuator ensures precise RF signal control and dependable microwave performance.
- Precision 50 Ohm impedance
- Frequency support up to 40 GHz
- Accurate attenuation values
- Low insertion loss
- Low VSWR
- Excellent return loss
- Multiple power ratings
- Compact design
- Precision SMA connectors
- High mechanical durability
- Superior thermal stability
- Long operational life
High-quality SMA Attenuators protect sensitive RF equipment, improve measurement accuracy, reduce signal reflections, and provide reliable RF signal conditioning for telecom, aerospace, defense, satellite communication, wireless infrastructure, and microwave testing applications.
Product Specifications
| Product Type | Impedance | Frequency Range | Application |
|---|---|---|---|
| SMA Fixed Attenuator | 50 Ohm | DC to 18/26.5/40 GHz | RF Signal Attenuation |
| SMA Precision Attenuator | 50 Ohm | DC to 40 GHz | Vector Network Analyzer (VNA) |
| SMA Low Power Attenuator | 50 Ohm | DC to 18 GHz | Laboratory RF Measurements |
| SMA High Power Attenuator | 50 Ohm | DC to 18 GHz | High Power RF Systems |
| SMA Male to Female Attenuator | 50 Ohm | DC to 40 GHz | RF Test Equipment |
| SMA 3 dB Attenuator | 50 Ohm | DC to 40 GHz | Signal Level Control |
| SMA 10 dB Attenuator | 50 Ohm | DC to 40 GHz | Microwave Communication |
| SMA 20 dB Attenuator | 50 Ohm | DC to 40 GHz | RF Calibration |
| SMA 30 dB Attenuator | 50 Ohm | DC to 40 GHz | RF Production Testing |
| SMA Precision RF Attenuator | 50 Ohm | DC to 40 GHz | Aerospace & Defense Systems |
Why Choose us
Precision RF Engineering
Our SMA Attenuators are manufactured to provide highly accurate attenuation with excellent electrical performance and long-term reliability.
Low VSWR & Excellent Return Loss
Designed to minimize signal reflections and maximize RF system efficiency across the operating frequency range.
Premium Manufacturing Quality
Using advanced CNC machining, precision resistor technology, and premium materials, we manufacture attenuators that meet demanding industrial and laboratory requirements.
Manufactured in India
All our SMA Attenuators are manufactured in India under strict quality control procedures, ensuring reliable performance, competitive pricing, and timely delivery.
Frequently Asked Questions
An SMA Attenuator is a passive RF device that reduces RF signal power by a fixed attenuation value while maintaining a constant 50 Ohm impedance.
Depending on the model, SMA Attenuators support frequencies from DC to 18 GHz, 26.5 GHz, and 40 GHz.
Standard attenuation values include 1 dB, 2 dB, 3 dB, 5 dB, 6 dB, 10 dB, 20 dB, 30 dB, 40 dB, 50 dB, and 60 dB.
Most SMA Attenuators are manufactured with a precision 50 Ohm impedance.
They are widely used in RF testing, microwave communication, aerospace, defense, satellite communication, radar systems, telecom networks, and wireless infrastructure.
We manufacture SMA Attenuators with power ratings ranging from 1 Watt to 100 Watts depending on customer requirements.
Yes. SRFS Teleinfra manufactures customized SMA Attenuators with specific attenuation values, connector configurations, frequency ranges, and power ratings.
Yes. All our SMA Attenuators are manufactured in India using premium materials, precision engineering, and comprehensive quality testing.
Yes. They are extensively used with Vector Network Analyzers, spectrum analyzers, signal generators, and RF calibration systems.
SRFS Teleinfra offers precision-engineered SMA Attenuators with outstanding RF performance, customized solutions, stringent quality control, competitive pricing, fast delivery, and expert technical support for telecom, aerospace, defense, satellite communication, and microwave industries.