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ホーム - RF/Microwave Calculators & Conversions - Reflection Attenuator Calculator

Reflection Attenuator Calculator

Pasternack's Reflection Attenuator Calculator allows you to determine the two possible resistor values (R1 > Z0 & R1 < Z0) for a reflection attenuator (measured in Ohms).

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Attenuation (dB):
Impedance (Ω):

Result:
R1 > Z0:
R1 < Z0:

Reflection Attenuators use two equal resistors, each grounded and connected to the same node, to attenuate a signal. For this reason, there are two possible solutions to the value of the resistors used, one larger than the system impedance and one smaller. Visit Pasternack's RF coaxial attenuators page for product details.

**Note: All of our calculators allow SI prefix input. For example, if you wish to input "25000000", just type "25M" instead. See the quick-reference table below for all compatible SI prefixes.
Prefix Symbol Value
Tera 'T' 1012
Giga 'G' 109
Mega 'M' 106
kilo 'k' 103
Prefix Symbol Value
pico 'p' 10-12
nano 'n' 10-9
micro 'u' 10-6
milli 'm' 10-3