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- Phone：+86 17702828378
- WeChat：+86 17702828378
- WA：+86 17702828378
- Mail：sales@yusntech.com
- Address：Room 3, Floor 1, Building 13, No. 69, East Section of Hangkong Road, Dongsheng Subdistrict, Shuangliu District, Chengdu City, Sichuan Province.
Fixed Attenuators
Yusntech Fixed Attenuators provide precise and stable RF signal attenuation from DC to 110 GHz with power ratings up to 2000 W. Available with SMA, N, K, V, 2.4 mm, 1.85 mm, 2.92 mm, and L29 connectors, these attenuators feature low VSWR, excellent power handling, and reliable performance for satellite communications, radar systems, test & measurement, aerospace, defense, wireless infrastructure, and microwave applications. Custom attenuation values and configurations are available.
Features
• Wide frequency range up to mmWave
• Precise and stable attenuation values
• High power handling capability
• Low VSWR and excellent impedance matching
• Rugged and reliable design
Applications
Applications
• RF & Microwave Test Systems
• Signal Level Adjustment
• Receiver Protection
• Communication Systems
• Laboratory & Production Testing
Model↑↓ | Freq. (GHz) | Power (W) | Attenuation (dB) | VSWR | Connector | Inquiry |
|---|---|---|---|---|---|---|
| YSFA2K-3-XX-L29 | DC-3 | 2000 | 20 / 30 / 40 / 50 | 1.40 | L29 | Inquiry |
| YSFA100-6-XX-N | DC-6 | 100 | 10 / 20 / 30 / 40 / 50 | 1.40 | N | Inquiry |
| YSFA1K-6-XX-N | DC-6 | 1000 | 30 / 40 / 50 / 60 | 1.45 | N | Inquiry |
| YSFA10-18-XX-N | DC-18 | 10 | 1-60 | 1.45 | N | Inquiry |
| YSFA10-18-XX-S | DC-18 | 10 | 1-40 | 1.35 | SMA | Inquiry |
| YSFA100-18-XX-N | DC-18 | 100 | 6-10 / 20 / 30 / 40 / 50-60 | 1.45 | N | Inquiry |
| YSFA100-18-XX-S | DC-18 | 100 | 6-10 / 20 / 30 / 40 / 50-70 | 1.45 | SMA | Inquiry |
| YSFA150-18-XX-N | DC-18 | 150 | 0-6 | 1.45 | N | Inquiry |
| YSFA2-18-XX-N | DC-18 | 2 | 1-10 / 20 / 30 / 40 / 50 / 60 | 1.30 | N | Inquiry |
| YSFA2-18-XX-S | DC-18 | 2 | 1-60 | 1.30 | SMA | Inquiry |
| YSFA20-18-XX-N | DC-18 | 20 | 1-50 | 1.45 | N | Inquiry |
| YSFA20-18-XX-S | DC-18 | 20 | 1-40 | 1.35 | SMA | Inquiry |
| YSFA200-18-XX-N | DC-18 | 200 | 10 / 20 / 30 / 40 / 50-60 | 1.45 | N | Inquiry |
| YSFA250-18-XX-N | DC-18 | 250 | 10 / 20 / 30 / 40 / 50-60 | 1.45 | N | Inquiry |
| YSFA30-18-XX-N | DC-18 | 30 | 1-10 / 20 / 30 / 40 / 50-60 | 1.45 | N | Inquiry |
| YSFA30-18-XX-S | DC-18 | 30 | 1-60 | 1.45 | SMA | Inquiry |
| YSFA300-18-XX-N | DC-18 | 300 | 10 / 20 / 30 / 40 / 50 / 60 | 1.45 | N | Inquiry |
| YSFA400-18-XX-N | DC-18 | 400 | 20 / 30 / 40 / 50~60 | 1.45 | N | Inquiry |
| YSFA5-18-XX-N | DC-18 | 5 | 1-10 / 20 / 30 / 40 / 50 / 60 | 1.35 | N | Inquiry |
| YSFA5-18-XX-S | DC-18 | 5 | 1-30 | 1.30 | SMA | Inquiry |
| YSFA50-18-XX-N | DC-18 | 50 | 1-10 / 20 / 30 / 40-50 | 1.45 | N | Inquiry |
| YSFA50-18-XX-S | DC-18 | 50 | 1-10 / 20 / 30 / 40~50 | 1.45 | SMA | Inquiry |
| YSFA500-18-XX-N | DC-18 | 500 | 10 / 20 / 30 / 40 / 50 / 60 | 1.45 | N | Inquiry |
| YSFA10-26.5-XX-S | DC-26.5 | 10 | 1-10 / 20 / 30 | 1.25 | SMA | Inquiry |
| YSFA2-26.5-XX-S | DC-26.5 | 2 | 1-10 / 20 / 30 / 40 | 1.30 | SMA | Inquiry |
| YSFA20-26.5-XX-S | DC-26.5 | 20 | 10 / 20 / 30 | 1.30 | SMA | Inquiry |
| YSFA30-26.5-XX-S | DC-26.5 | 30 | 20 / 30 / 40 | 1.30 | SMA | Inquiry |
| YSFA5-26.5-XX-S | DC-26.5 | 5 | 1-10 / 20 / 30 | 1.25 | SMA | Inquiry |
| YSFA50-26.5-XX-S | DC-26.5 | 50 | 20 / 30 / 40 | 1.30 | SMA | Inquiry |
| YSFA10-40-XX-K | DC-40 | 10 | 1-10 / 20 / 30 | 1.25 | 2.92 mm | Inquiry |
| YSFA100-40-XX-K | DC-40 | 100 | 20 / 30 / 40 / 50 | 1.40 | 2.92 mm | Inquiry |
| YSFA2-40-XX-K | DC-40 | 2 | 1-10 / 20 / 30 | 1.25 | 2.92 mm | Inquiry |
| YSFA20-40-XX-K | DC-40 | 20 | 3-10 / 20 / 30 / 40 | 1.30 | 2.92 mm | Inquiry |
| YSFA30-40-XX-K | DC-40 | 30 | 20 / 30 / 40 | 1.35 | 2.92 mm | Inquiry |
| YSFA5-40-XX-K | DC-40 | 5 | 1-10 / 20 / 30 | 1.25 | 2.92 mm | Inquiry |
| YSFA50-40-XX-K | DC-40 | 50 | 20 / 30 / 40 | 1.35 | 2.92 mm | Inquiry |
| YSFA10-50-XX-2 | DC-50 | 10 | 1-10 / 20 / 30 | 1.40 | 2.4 mm | Inquiry |
| YSFA2-50-XX-2 | DC-50 | 2 | 1-10 / 20 / 30 | 1.30 | 2.4 mm | Inquiry |
| YSFA5-50-XX-2 | DC-50 | 5 | 1-10 / 20 / 30 | 1.30 | 2.4 mm | Inquiry |
| YSFA10-67-XX-V | DC-67 | 10 | 10 / 20 / 30 | 1.45 | 1.85 mm | Inquiry |
| YSFA2-67-XX-V | DC-67 | 2 | 1-10 / 20 / 30 | 1.35 | 1.85 mm | Inquiry |
| YSFA5-67-XX-V | DC-67 | 5 | 1-10 / 20 / 30 | 1.40 | 1.85 mm | Inquiry |
| YSFA1-110-XX-W | DC-110 | 1 | 3 / 6 / 10 | 1.60 | 1.0 mm | Inquiry |
FAQ
A fixed RF attenuator is a passive microwave component designed to reduce signal power by a predetermined attenuation value while maintaining signal integrity and impedance matching. Fixed RF attenuators are widely used in RF and microwave systems to protect sensitive equipment, improve signal levels, reduce reflections, and optimize overall system performance. They are commonly deployed in radar systems, satellite communications, wireless infrastructure, aerospace electronics, and RF test and measurement applications.
Yusntech fixed attenuators cover an extensive frequency range from DC to 110 GHz, including microwave and millimeter-wave bands. This broad coverage enables engineers and system integrators to use our coaxial attenuators in applications such as 5G networks, satellite ground stations, electronic warfare systems, radar platforms, aerospace payloads, and high-frequency laboratory testing.
Standard attenuation values include 1 dB, 3 dB, 6 dB, 10 dB, 20 dB, 30 dB, 40 dB, 50 dB, and 60 dB depending on the model and frequency range. Custom attenuation levels are also available to meet specific system requirements. Selecting the correct fixed attenuator helps improve signal conditioning, power management, and measurement accuracy in RF and microwave networks.
Yusntech offers fixed RF attenuators with SMA, N Type, 2.92 mm (K), 2.4 mm, 1.85 mm (V), and L29 connectors. These connector options support applications ranging from low-frequency RF systems to high-performance millimeter-wave communication and radar systems. Custom connector configurations can also be provided for specialized projects.
Low VSWR attenuators minimize signal reflections and improve impedance matching throughout the RF signal chain. This results in better measurement accuracy, enhanced signal quality, improved power transfer efficiency, and greater system stability. Low VSWR coaxial attenuators are especially important in high-frequency microwave testing, satellite communication systems, and precision radar applications.
Yes. Yusntech provides high-power fixed attenuators with power ratings ranging from 1 watt to 2000 watts. These high-power attenuators are suitable for RF power amplifiers, transmitter testing, military communication systems, electronic warfare equipment, broadcasting systems, and industrial microwave applications where reliable power dissipation is critical.
Fixed microwave attenuators are widely used in satellite communications, radar systems, aerospace and defense electronics, telecommunications infrastructure, electronic warfare systems, wireless communications, semiconductor testing, laboratory measurement equipment, and RF research and development. Their ability to accurately control signal levels makes them essential components in modern RF and microwave networks.
Yes. Yusntech specializes in custom RF and microwave attenuator solutions tailored to customer requirements. We can customize frequency range, attenuation value, power handling capability, connector type, mechanical configuration, and environmental specifications. Our engineering team works closely with customers to develop reliable solutions for commercial, industrial, aerospace, and defense applications.
When selecting a fixed attenuator, engineers should consider operating frequency range, attenuation value, power handling capability, VSWR performance, connector interface, environmental conditions, and system impedance. Yusntech technical specialists can assist customers in choosing the most suitable RF attenuator to achieve optimal system performance and long-term reliability.
Yusntech fixed RF attenuators combine wide frequency coverage up to 110 GHz, high power handling up to 2000 watts, low VSWR performance, robust construction, and flexible customization options. Our products are trusted by customers worldwide for satellite communication systems, radar platforms, aerospace projects, defense programs, RF testing laboratories, and advanced microwave applications where performance and reliability are critical.