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UHF Low Pass Filter

Rev : 02 | Rev date : 30 Aug 2021

The RFS LPF low pass filter provides a minimum of 40dB rejection up to 3.3 GHz. A custom designed structure is used to create a very sharp cut-off rate and to maintain high rejection.
Unlike traditional coaxial low pass filters, the RFS LPF does not exhibit the typical rejection band periodicity. High quality insulating material is used throughout the internal design of the low pass filter leading to high power handling capability and very low insertion loss while keeping dimensions small.
With the lowpass filter installed a broadcast TV transmitter can be  safely operated in co-location with other wireless services such as GSM1800 and WiFi.


  • High power handling capability
  • Low insertion loss
  • Sharp cut off rate
  • 40dB rejection up to 3.3GHz
  • Compact size

Low Pass Filter Series showing LPF16E4

Technical features

General Specifications

Product TypeBand IV/V (UHF) TV Low Pass Filter
Technical ApplicationHarmonic suppression

Electrical Specifications

Pass BandMHz470 - 710
Pass band Return Loss>26.4 dB (VSWR<1.10)
Pass Band Insertion LossdB< 0.1dB
Stop band rejection>40 dB (940MHz-1200MHz)
>60 dB (1200MHz-3300MHz)
Power HandlingkW5 kW av (all modulation types)

Mechanical Specifications

Connectors1 5/8" flanged or unflanged
DimensionsRefer to Figure 1. Weight approx. 2.6 kg

Temperature Specifications

Temperature Range°C (°F)-10 to 50 (14 to 122 )

Figure 1 Dimensions

Figure 2 S11/S22 Result

Fig 3 S11/S22 Result

External Document Links