Dow-Key Microwave

Company Profile:

Dow-Key Microwave, headquartered in Ventura, California, USA, is the world's largest manufacturer of RF/microwave electromechanical switches. Founded in 1945 and a member of the Dover Corporation’s Microwave Products Group (MPG), the company specializes in high-performance coaxial switches, waveguide switches, T-switches, switch matrices, and custom switching solutions. These products serve diverse industries including commercial communications, automated testing, satellite systems, and broadcasting.

Key Products:

Coaxial Switches:

• Frequency: DC–40 GHz
• Configurations: SPDT, DPDT, SP3T–SP14T
• Lifetime: >1 million cycles
• Temperature range: -25°C to +65°C (standard)

Waveguide Switches:

• Frequency: DC–75 GHz
• Configurations: SPDT, DPDT
• Lifetime: >2,000 cycles
• Temperature range: -54°C to +85°C
• Isolation: >60 dB

Electromechanical Switch Matrices:

• Frequency: DC–40 GHz (broadband)
• Sizes: 1×100 to 12×12
• Features: Large size, slow switching speed, low/high RF power handling

Solid-State Switch Matrices:

• Frequency: 2 MHz–4.2 GHz (narrowband segmented)
• Sizes: 6×6 to 32×64
• Features: Compact size, fast switching speed, low RF power

Fiber-Optic Switch Matrices:

• Wavelength: 1530–1565 nm
• Configurations: 8×14, 14×15
• Technology: All-optical domain with MEMS-based switching

Programmable Attenuators:

• Frequency ranges: 0.03–3 GHz, 0.2–3/6 GHz
• Attenuation range: 0–63 dB / 0–127 dB (1 dB step)
• Technology: Solid-state, high-speed switching

Programmable Delay Lines:

• Frequency: DC–18 GHz
• Delay range: Up to 200 ns (maximum)
• Step resolution: 10 ps (minimum)
• Operating temperature: +10°C to +30°C
• Power handling: 10 W