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Attenuators absorb RF power where known insertion loss is required. Frequently are used as matching sections between generator and load, resonant curcuits etc. Overflowing power is abrorbed by a resistive layer. The layer is preserved by impregnation. Inner surfaces are preserved by anticorrosive conductive layer, outer surfaces are painted. Standard attenuation values are -3 dB, -6 dB, -10 dB and -20 dB. Attenuation value slightly varies with frequency. Calibration curves are enclosed to attenuators. Calibration accuracy is 0.1 dB |
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Attenuators |
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| Designation | MC284BO | MC187BO | MC137BO | MC90BO | MC62BO | MC42BO | MC28BO |
| WG Dimensions | WR284 | WR187 | WR137 | WR90 | WR62 | WR42 | WR28 |
| Frequency Band [GHz] | 2.6-3.95 | 3.95-5.85 | 5.85-8.2 | 8.2-12.4 | 12.4-18.0 | 18.0-26.5 | 26.5-40.0 |
| SWR | 1.15 | 1.15 | 1.15 | 1.15 | 1.15 | 1.15 | 1.20 |
| Nominal Attenuation [dB] | L = 3, 6, 10 or 20 dB | ||||||
| Length a [mm] | 400 | 280 | 220 | 160 | 130 | 90 | 90 |
| Flange | IEC | ||||||
