Model: LM-18G40G-18-1W-292FF

PMI Model No. LM-18G40G-18-1W-292FF is an Ultra-High Speed, Millimeter Wave, High Power RF Limiter that operates over the frequency range of 18.0 to 40.0 GHz.  This limiter can handle input power levels up to 1 Watt CW and provides a leakage output power of +18 dBm maximum and +12 dBm typical.  The limiting threshold is +5 dBm typical and +9 dBm maximum.  The insertion loss is less than 4 dB having a typical loss of 3.5 dB at 40 GHz.  This limiter offers ultra-high recovery speeds of 10 ns maximum.  The ultra-small housing measures only 0.5” x 0.5” x 0.22” and features field removable 2.92mm female connectors.  This package can be used in connectorized or drop-in form. 

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Product Feature

Test Report
Unit Data




Frequency Range 18.0 to 40.0 GHz
Insertion Loss 4.0 dB Max. - Measured 3.51 dB
Input Power

1 Watt CW Max.

Leakage Power +18 dBm Max. - Measured +12 dBm Typ.
Limiting Threshold +9 dBm Max. - Measured +5 dBm Typ.
1dB Recovery Time 10 ns Max. - Measured <10 ns
VSWR 2.1:1 - Measured 1.87:1
Connectors 2.92mm (F) Removable  (K-Type Equivalent)
Size 0.5" X 0.5" X 0.22"
Weight 1.5 oz. Typ.

Environmental Ratings:

Temperature:  -54 ºC to +85 ºC Operating
 -55 ºC to +125 ºC Non-Operating
 Humidity:  MIL-STD-202F, Method 103B Cond. B
 Shock:  MIL-STD-202F, Method 213B Cond. B
 Vibration:  MIL-STD-202F, Method 204D Cond. B
 Altitude:  MIL-STD-202F, Method 105C Cond. B
 Temperature Cycle:  MIL-STD-202F, Method 107D Cond. A