Coaxial Circulators
Coaxial Isolators
Drop-In Circulators
Drop-In Isolators
Waveguide Circulators / Isolators
Waveguide Products
- Waveguide Switches
- Straight & Twisted Sections
- Flex & Twistable Sections
- Waveguide Bends
- Waveguide Mitered Bends
- Waveguide Terminations
- Directional Couplers
- Waveguide to Coax Adaptors
- Waveguide Pressure Windows
- Custom Waveguide Assemblies
- Custom Field Install Kits
Couplers & Dividers
- Integrated Iso-Couplers
- Narrow Band Couplers
- Wide Band Couplers
- Microwave Radio Receiver Couplers & Splitters
- Coax Power Dividers
Filters & Diplexers
Waveguide Switches

Our line of waveguide switches are designed for reliability in outdoor environments including freezing rain, sand, and dust. A mating connector is supplied with each switch.
Power Connectors:
• for WR229 through WR62 - ITT KPTO2614-19P
• for WR42 through WR28 - ITT KPTO2614-10P
Operating Temperature: -40 to +75 °C
Humidity: 100%
Pressure Rating: 20 psig, including driving head
Standard options are available as follows:
• Flanges can be selected from most common North American or metric types. Specify flange type with order.
• Driver voltages include 12V, 24V, or 48V DC and 115V or 220V AC. Specify driver voltage with order.
• Weather cap for manual override control (required for outdoor environments).
• Drive head includes Form C contacts, some of which may be replace with inhibit contacts.
Waveguide Switches
Waveguide Size | Frequency Range (GHz) | Insertion Loss (typ) (dB) | Isolation (Max) (dB) | Return Loss (typ) (dB) | Switching Time (Max) (msec) | CW Power Rating (kW) | Part Number | Outline Drawing |
WR229 | 3.50-4.20 | 0.05 | 70 | 32 | 120 | 5.0 | 390-350420-190 | S01 |
WR187 | 3.95-5.85 | 0.05 | 80 | 30 | 100 | 5.0 | 390-395585-190 | S02 |
WR159 | 4.90-7.05 | 0.05 | 70 | 30 | 100 | 5.0 | 390-490705-190 | S03 |
WR137 | 5.85-8.20 | 0.05 | 70 | 30 | 80 | 5.0 | 390-585820-110 | S04 |
WR112 | 7.0-10.0 | 0.05 | 70 | 28 | 80 | 5.0 | 390-700100-120 | S05 |
WR90 | 8.2-12.4 | 0.05 | 70 | 30 | 80 | 3.5 | 390-820124-120 | S06 |
WR75 | 10.0-15.0 | 0.05 | 70 | 28 | 80 | 3.5 | 390-100150-120 | S07 |
WR62 | 12.4-18.0 | 0.05 | 70 | 26 | 80 | 2.5 | 390-124180-120 | S08 |
WR42 | 18.0-26.5 | 0.15 | 60 | 23 | 70 | 1.0 | 390-180265-120 | S09 |
WR34 | 22.0-33.0 | 0.15 | 55 | 23 | 70 | 0.5 | 390-220330-180 | S10 |
WR28 | 26.5-40.0 | 0.15 | 55 | 23 | 70 | 0.4 | 390-265400-190 | S11 |