Fixed attenuators
Fixed attenuators provide a constant attenuation value in an RF path. They are used when a design needs predictable signal reduction without control wiring, software commands or moving adjustments.
Constant loss and power margin
Key data includes attenuation value, operating frequency range, power rating, VSWR, return loss, attenuation flatness, connector type, impedance, package style and thermal behavior. These values matter in calibrated test paths, receiver protection, drive-level padding and systems where repeatable insertion conditions are required.
What does the Fixed Attenuators category cover?
Fixed attenuators add a known amount of RF loss to set signal level, protect inputs or improve measurement range. They are passive parts used in test paths, receiver inputs, amplifier drive chains and calibrated RF links.
How should hardware in the Fixed Attenuators category be selected?
A practical method for specifying passive RF loads, terminations and impedance networks by function, reference plane, complex impedance, reflection, insertion loss, waveform power, thermal derating, environment and acceptance evidence.
- Define the electrical and thermal boundary before choosing the hardware
- Classify the passive function before selecting a component
- Freeze frequency, characteristic impedance and the reference plane
Which specifications matter when evaluating Fixed Attenuators?
Key data includes attenuation value, operating frequency range, power rating, VSWR, return loss, attenuation flatness, connector type, impedance, package style and thermal behavior. These values matter in calibrated test paths, receiver protection, drive-level padding and systems where repeatable insertion conditions are required.
How should hardware in the Fixed Attenuators category be tested and verified?
Specify a passive RF network or load by first naming its function and calibrated reference plane. Freeze continuous frequency coverage, characteristic impedance, port state, return loss or VSWR, insertion response, average and peak power, pulse width, duty cycle, mismatch or reverse power, mounting temperature, cooling, connector and environment. Then define VNA calibration, power-stress conditions, thermal stabilization, pass/fail limits and retained data.