RF Attenuators

Your Professional RF Attenuators Supplier

Flexi RF Inc. was founded in 2023 in Santa Clara, California - at the heart of Silicon Valley, by a team of experienced RF engineers. We specialize in the design, manufacture, and supply of passive and active RF components. Our product line includes passive components such as antennas, connectors, adapters, cable assemblies, attenuators, and loads; and active components such as amplifiers, switches, and select custom modules.

Why Choose Us

OEM and ODM
We offer both OEM and ODM services with no minimum order quantity. Whether you are developing a next-generation system or require a mature RF module solution, we provide products and technical support that scale with your innovation.

Our Services
Flexi RF offers a one-year warranty on standard products, ensuring that our service remains reliable and efficient.

Real-Time Response
Our cross-border team, spanning China and the United States, can respond to customer needs around the clock, ensuring seamless and efficient service across time zones.

Professional Team
With decades of industry experience and professional R&D as well as manufacturing facilities, our team of experienced engineers possesses strong independent innovation capabilities, enabling us to provide customers with high-quality customized RF solutions.

Specification

Min. Mating Cycles	≥500
Connector In Body Material	Brass
Connector In Body Plating	Tri-Metal
Connector Out Body Material	Brass
Connector Out Body Plating	Tri-Metal
RoHS Compliant	Yes
Operating Temperature Range	-45°C to +125°C

Main Functions of RF Attenuators

Reduce Signal Power & Protect Equipment
The core function of RF attenuator is to reduce the signal power to ensure that the back end equipment (e.g. receivers, power amplifiers, test instruments, etc.) will not be damaged due to the input signal being too strong. In high power transmission environments, proper attenuation extends equipment life and maintains system stability.

Signal Strength Adjustment to Ensure System Matching
In RF and microwave systems, where power requirements may vary between components, RF attenuators can be used to accurately adjust signal strength for better matching between different devices. In base station, satellite communication or radar systems, proper attenuation can ensure stable signal transmission.

Reducing Reflection Loss and Improving Transmission Efficiency
When impedance mismatch occurs in an RF system, it causes signal reflection and energy loss, which in turn affects the overall communication quality. RF attenuator can be used as a matching element to help reduce the VSWR, minimize signal reflection, and improve the transmission efficiency and reliability of the system.

Test and Verify Equipment to Improve Test Accuracy
RF attenuators are widely used in radio frequency and microwave test field, especially adjustable attenuators (Variable Attenuators) can provide flexible power control, suitable for dynamic range testing, equipment calibration, etc.

Construction of RF Attenuators

Attenuator Element. The core component of the attenuator responsible for signal attenuation. This is usually achieved through a resistor network or other technologies.

Connectors. To ensure signal transmission and connection stability, standard connectors such as 2.92mm, 3.5mm, SMA, SMB, BNC, N-type, TNC, etc., are commonly used in attenuators.

Heat Sink. High-power attenuators generate heat during operation. To dissipate this heat and prevent damage to the components, a heat sink is designed.

Other Components. Depending on the model and functionality, RF Attenuators may include additional components such as electronic control circuits, indicator lights, etc., to provide extra features and convenience.

Basic Principles of RF Attenuators

An attenuator works by introducing resistance into the RF signal path, effectively lowering the signal's power. The device absorbs or redirects some of the energy from the signal, reducing its amplitude without distorting the underlying waveform. This reduction can be done to match the power requirements of various components in the communication system, such as receivers or amplifiers.

An RF attenuator can be either fixed or variable. Fixed attenuators provide a consistent attenuation level, while variable attenuators allow for adjustable attenuation levels to suit different testing or operational requirements. Programmable attenuators can be controlled via digital interfaces, providing automated signal strength adjustment in response to changing system needs.

Applications of RF Attenuators

Communication systems

Used to adjust and control the strength of RF signals to ensure the quality and stability of signal transmission.

Radio frequency spectrum analysis

Used in spectrum analyzers and radio testing equipment to help analyze and measure signal strength at different frequencies.

RF testing and measurement

Used in RF testing to adjust signal strength for various tests such as power measurement and spectrum analysis.

Satellite communication

Used in satellite communication systems to adjust and control the strength and direction of satellite signals.

Radio frequency tuning

Used to adjust the signal strength of radio receivers and transmitters to adapt to signals of different frequencies.

RF equipment calibration

Used to calibrate various RF devices to ensure they operate within the correct signal strength range.

Laboratory research

Used in laboratory experiments and research projects in the field of scientific research for signal control and adjustment in various RF experiments.

Customization Services

To better meet the diverse needs of different industries and customers, we can tailor RF attenuators professional solutions to your specific application scenarios and special requirements. For further information or support, please feel free to contact us.

Order Process

Contact Customer Service

Submit Order

Obtain a Quote

Confirm Order

Arrange Payment

Track Order

Receive and Inspect Goods

Packaging and Shipping

Packaging	Plastic bags, paper boxes
Transportation methods	Road transport, rail transport, sea transport, air transport

FAQ

Q: What does an RF attenuator do?

A: An RF attenuator reduces the strength (or amplitude) of a radio frequency (RF) signal. It essentially acts as a "volume knob" for RF signals, allowing engineers to precisely control signal strength in various applications.

Q: What is the difference between RF limiter and attenuator?

A: RF limiters are typically connectorised with coaxial or waveguide interfaces, though there are surface mount RF limiters. RF attenuators can be passive or active devices with variable attenuators depending on the design.

Q: How to choose an RF attenuator?

A: Frequency range.
Insertion loss: Consider the insertion loss of the Attenuator and choose products with lower insertion loss to avoid excessive signal attenuation.
Attenuation range.
Impedance matching.
Power handling capability.

We're professional rf attenuators manufacturers and suppliers in USA, specialized in providing high quality customized service. We warmly welcome you to buy high-grade rf attenuators in stock here from our factory.

SMA Attenuators, SMA Fixed Attenuator 8GHz 2Watts, 2 4mm Fixed Attenuator 50GHz 2Watts