Products

Sylatech’s pressure windows permit the sealing of waveguide components and assemblies when pressurization or inert gas filling is required. At low power, our pressure windows are available in all popular flange configurations and can also be adapted to suit custom designs if required.

  • Covering a broad range of waveguide sizes from WG11 to WG22 (WR229 to WR28)
  • Half height pressure windows available
  • Low VSWR and insertion loss over the frequency band of operation ensures minimum degradation of the transmitted signal and thus permits the transmission of high-peak and mean power levels.
  • Insertion loss less than 0.05dB
  • Pressure difference 2 bar max.
  • VSWR 1.10 max.

GHz Part # WG size WR size R Insertion Loss VSWR Max Plane Pressure Difference
3.30 – 4.90 PW11001 WG11 WR229 R40 <0.05dB 1.10 H 2 bar max
3.95 – 5.85 PW12001 WG12 WR187 R48 <0.05dB 1.10 H 2 bar max
5.20 – 5.90 PW12002 WG12 WR187 R48 <0.05dB 1.10 H 2 bar max
5.30 – 5.90 PW12003 WG12 WR187 R48 <0.05dB 1.10 H 2 bar max
5.85 – 8.20 PW14001 WG14 WR137 R70 <0.05dB 1.10 H 2 bar max
8.40 – 8.75 PW15001 WG15 WR112 R84 <0.05dB 1.10 H 2 bar max
7.05 – 10.00 PW15002 WG15 WR112 R84 <0.05dB 1.10 E 2 bar max
8.50 – 9.60 PW15003 WG15 WR112 R84 <0.05dB 1.10 H 2 bar max
8.20 – 12.40 PW16001 WG16 WR90 R100 <0.05dB 1.10 H 2 bar max
8.40 – 8.75 PW16002 WG16 WR90 R100 <0.05dB 1.10 E 2 bar max
10.00 – 15.00 PW17001 WG17 WR75 R120 <0.05dB 1.10 H 2 bar max
12.40 – 18.00 PW18001 WG18 WR62 R140 <0.05dB 1.10 H 2 bar max
18.00 – 26.50 PW20001 WG20 WR42 R220 <0.05dB 1.10 H 2 bar max
23.00 – 24.00 PW20002 WG20 WR42 R220 <0.05dB 1.10 E 2 bar max
34.50 – 35.25 PW22001 WG22 WR28 R320 <0.05dB 1.10 H 2 bar max
26.50 – 40.00 PW22002 WG22 WR28 R320 <0.05dB 1.10 E 2 bar max
29.00 – 31.00 PW22003 WG22 WR28 R320 <0.05dB 1.10 H 2 bar max

The pressure window construction at Sylatech is from high grade PTFE composite with an electro-deposited copper layer.  This is soldered into the housing to produce a hermetically sealed and robust unit. The housing is made from brass with an electro-tinned finish, or aluminium with a silver finish.

Pressure windows can be supplied as an integral part of filter assemblies to form sealed gas-filled units for long-life service in harsh environments.

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