Coaxial RF attenuators reduce signal power between connectorized components. Compare attenuation, frequency range, impedance, power handling and connector configuration to find an option for your signal chain or test setup. Confirm all limits in the individual model datasheet.
Specify the attenuation, power handling and connector configuration your application needs.
Specify the nominal attenuation and tolerance, frequency band, impedance, CW or average power and peak power. Include pulse conditions for pulsed signals.
State the ambient temperature, available cooling and mounting arrangement. Check the selected model's derating curve and installation instructions.
Specify connector types and genders, space limitations and mounting needs. Confirm input direction where a high-power model has unequal forward and reverse power ratings.
Start with the required signal reduction in dB and the operating frequency band. For a fixed attenuator, compare its nominal attenuation, tolerance and flatness. For a variable or stepped model, also check range, resolution, control interface and switching behavior where specified. These characteristics are model-specific.
For a variable RF attenuator, state whether you need continuous adjustment or defined steps. Use the fixed or variable inquiry form that matches your requirement, and include attenuation tolerance, operating frequency and power conditions in the notes.
See the high-power RF attenuator selection guide for worked power examples and an RFQ checklist.
Switching speed applies to electronically controlled or switched attenuators. A fixed coaxial attenuator has no programmable attenuation state, so switching time is not a selection parameter for it. For a controlled model, confirm settling time and the specified control conditions in its datasheet.
Phase behavior varies by design, frequency and attenuation setting. Do not assume constant phase across models or control states. For phase-sensitive systems, request the applicable phase response data and specify the acceptable variation.
For a matched passive attenuator at the standard reference temperature of 290 K, noise figure in dB equals its attenuation in dB. An attenuator before a receiver LNA can therefore reduce sensitivity. Include its loss and physical temperature in the receiver noise budget.
Lead RF Architect
Global Aerospace Prime
Senior Test Engineer
Semiconductor Testing Services
Director of Operations
Telecommunications Infrastructure Co.
Send RFComp your frequency band, attenuation, impedance, average and peak input power, connector details, temperature range, quantity and timing. Include pulse width and duty cycle where relevant, plus any mechanical drawing or existing part number.
Fill out the form below, and we will be in touch shortly with a price
HD Communications Corp.
REQUEST for QUOTE (RFQ) form for Bi-Directional Amplifier
Optimized by Seraphinite Accelerator