S-Band Waterload
30 MW Peak Power, 9 KW Average Power
Model #V284F-3.0, Patent No. 4,516,088


Unit Specifications

Peak Power30 MWCenter Frequency2.998 GHz
Average Power9 KW (max) VSWR1.10 max
FlangesVarian Flat
Water Flow4 GPM
Water Temperature50º C
Gas Pressure 34 PSIG SF 6 @ Peak Power
Length11.5" (292 mm)
MaterialGuide Body – Aluminum Water Manifold – Brass & Polypropylene
Water ConnectionBrass Elbows (Parker 45º Flare X-48F-6-6)
Coupling (Type N Female)-60 db @ 3.0 GHz


This water load has the Varian flat flange and a -60 db E-field probe.  As with EM Design’s R284-3.0, this high power load is very useful for converting a circulator into an isolator.  The broad band performance of the load is especially useful for magnetron applications because it absorbs the spurious signals, as well as the desired fundamental, with equal efficiency.

It is an extremely broadband water load that covers almost the entire bandwidth of the WR284 waveguide.  This waterload is optimized at the 2.998 GHz frequency, and can also be optimized at 2.856 GHz.  For optimum performance, we recommend that you install the waterload with an EMD284V gasket seal.