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LPZ 1900

Coaxial Low-Pass Filter for the 1900 MHz Band

  • Passes all signals in or below the 1600 - 2100 MHz band.
  • Rejects signals above this range.

DESCRIPTION

  • Absolute stop band from 3.2 GHz to 12.4 GHz.
    – no degradation at harmonics (Zolotarev-characteristic).
  • Attenuation in stop band better than 60 dB.
  • Insertion loss in pass range less than 0.4 dB.
  • Provided with brackets for panel mounting.

 

ORDERING DESIGNATIONS 

TYPEPRODUCT NO.
LPZ 1900200001293

SPECIFICATIONS

ELECTRICAL 
MODELLPZ 1900
APPLICATIONLow-pass filter for the 1900 MHz band
FREQUENCYPass band: 1600 - 2100 MHz
Stop band: 3.2 - 12.4 GHz
MAX. INPUT POWER150 W
INSERTION LOSS
(PASS BAND)
≤ 0.4 dB
1 dB CUT-OFF FREQUENCY> 2150 MHz
ATTENUATION
(STOP BAND)
> 60 dB
SWR≤ 1.5
MECHANICAL 
TEMP. RANGE–30° C → +80° C
CONNECTORSN-female
DIMENSIONS (L x W x H)110 x 40 x 36 mm
WEIGHTApprox. 80 g

TYPICAL RESPONSE CURVES

LPZ-1900-curve

MOUNTING DETAILS
LPZ-1900-holeplacing450x

The LPZ 1900 is used to prevent RFI (Radio Frequency Interference) caused by excessive harmonic generation from transmitters operating in the 1900 MHz band. By rejection, the filter reduces the amplitude of the harmonics and prevents them from being radiated by the antenna.

The filter is normally used in connection with base station transmitters, but as it is mechanically very ruggedly designed, it is perfectly suited for mobile and marine applications as well.

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