S-Band Conventional 4-Port Circulator
15 MW Peak Power, 40 KW Average Power
Model #102574C

Unit Specifications

Peak Power15 MWCenter Frequency2.998 GHz
Average Power40 KW
FlangesCPR284FVSWR (Port 1)1.10 max
Required Water Flow4 GPM @ full 40 KW and 35 PSIG maximum input and pressure
Required Water TreatmentDeionized Water
Water Pressure 35 PSIG
Water Temperature35º to 40ºC (tested & optimized @ 38ºC)
(Port 1 to Port 4)
(Port 1 to Port 3)

>38 db
>32 db
Gas Pressure 35 PSIG SF 6
Weight97 lbs. (44 kg)
Length41" (1039 mm)Insertion
(Port 1 to Port 2)

<0.25 db
Probe Connector Type N Female


This high power S-band conventional 4-port circulator is attractive for isolating reflection from resonant loads such as accelerators or other similar devices. This circulator is set for the 2.998 GHz frequency, but can be readily optimized for other frequencies, including 2.856 GHz. Note that every power input, Ports 1, 2, 3 and 4 have variable insertion E field probes (at each port) for monitoring and/or control signals. These probes can be varied from the nominal -60 db coupling. Typically, in isolator applications, a good high power load (such as our Model #RQ284-3.0) should be attached to receive the reflected power. This circulator is broadband yet has very good narrow band specifications. Our customers are extremely pleased with the system performance achieved by this design.

S Band 4 Port Circulator 40kw AVG.PDF