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Ferrite - Model WR284 -Waveguide S-Band Microwave Circulators
Ferrite Microwave Technologies (FMT) manufactures a full line of high power WR284 waveguide S-Band microwave circulators and isolators. Typically, these components are utilized in weather radar systems, industrial processing applications, air traffic control radar systems, as well as scientific research and medical therapy practices. For more than 40 years, our expertise in the design, manufacture, and customization of high-power microwave components has allowed us to offer the most broad range of S-Band devices compatible with WR284 waveguide systems.
FMT offers standard 1kW, 3kW and 6kW circulator and isolator designs, in S-Band WR284 Waveguide configurations.
WR284 S-Band Circulators
| Part Number | Power (FWD & REV) | Circulator Cooling | “A” | “B” | “C” |
| S284-1.0-CIRC | 1 kW | Air | 7.17 in. (18.2 cm) | 7.47 in. (19 cm) | 4.57 in. (11.61 cm) |
| S284-3.0-CIRC | 3 kW | 1.5 GPM | 7.17 in. (18.2 cm) | 7.47 in. (19 cm) | 4.57 in. (11.61 cm) |
| S284-6.0-CIRC | 6 kW | 3.0 GPM | 7.17 in. (18.2 cm) | 7.47 in. (19 cm) | 7.50 in. (19.05 cm) |
| Part Number | Power (FWD & REV) | Circulator Cooling | Load Cooling | “A” | “B” | “C” |
| S284-1.0-ISO | 1 kW | Air | 1.5 GPM | 7.17 in. (18.2 cm) | 11.68 in. (29.67 cm) | 4.57 in.(11.61 cm) |
| S284-3.0-ISO | 3 kW | 1.5 GPM | 2.0 GPM | 7.17 in. (18.2 cm) | 11.68 in. (29.67 cm) | 4.57 in. (11.61 cm) |
| S284-6.0-ISO | 6 kW | 3.0 GPM | 3.0 GPM | 7.17 in. (18.2 cm) | 11.68 in. (29.67 cm) | 7.0 in. (17.78 cm) |
Ferrite has a vast library of WR284 waveguide circulators, duplexers, and isolators, operating in the S-Band. As a product spotlight, we welcome you to explore the electrical and mechanical specifications of FMT models: SC3-135 and SC3-543.
The following specifications apply to FMT model number SC3-135. It is a WR284 waveguide S-Band circulator:
Frequency Band: S-Band
Operating Frequency: 2700 MHZ to 2900 MHz
Peak Power: 25 kW (max.)
Pulse Length: 100 microseconds (max.)
Duty Cycle: 11% Duty (max.)
VSWR: 1.20:1
Isolation: 25 dB (min.)
Insertion Loss: 0.5 dB (max.)
Flanges: CPR-284G / CPR-284F
Waveguide Size: WR-284
Waveguide Pressure: 15 PSIG (max.)
Operating Temperature: -10°C to 50°C
The following specifications apply to FMT model number SC3-543. It is a 3-Port junction style circulator:
Frequency Band: S-Band
Operating Frequency: 2700 MHz to 3100 MHz
Peak Power: 24 kW
Average Power: 2.4 kW
Material: Aluminum, 6061-T6
Flanges: CPR-284G
Finish: Chromate Golden per MIL-C-5541, Class 3
Ferrite Microwave Technologies also offers S-Band duplexers. A duplexer allows systems to direct RF signals to different places, using the same set of transmission lines (waveguide, coaxial, etc.). Although we offer a wide range of duplexers, as a product highlight, we welcome you to explore the specifications of FMT duplexer models SC3-129 and SC3-572.
SC3-129 is a four port differential phase shift circulator / duplexer. Its specifications are as follows:
Frequency Band: S-Band
Operating Frequency: 2700 MHz to 2900 MHz
Peak Power: 1 MW
Average Power: 1 kW
Material: Aluminum, 6061-T6
Flanges: WR-284 Choke / Cover
S-Band WR284 Waveguide Dual Junction Duplexer
SC3-572 is a high-power S-Band dual junction duplexer. Its specifications are as follows:
Frequency Band: S-Band
Operating Frequency: 2700 MHz to 3100 MHz
Peak Power: 1 MW
Average Power: 1 kW
Material: Aluminum, 6061-T6
Flanges: WR-284 Grooved