Drytech offers a full range of waveguide pressurization components and systems, ranging from the desiccant dehydrator cartridge to a fully integrated waveguide pressurization/purging system.  Drytech exceeds the rigorous challenges of moisture management for mechanical airborne and ground based radars.

Common Waveguide Problems

  1. Balanced Antenna Pressurization (flow vs pressure)
  2. Differential pressure control vs. altitude
  3. Internal waveguide corrosion
  4. Waveguide arcing
  5. Breakdown voltage (dielectric strength) of air due to reduced ambient pressure

Challenges

  1. Inadequte flow/dead heading
  2. Diurnal breathing efficiency
  3. Performance balance between pressurized and non pressurized zones (maintaining adequate delta P)
  4. Maintaining adequate pressure and flow during mission flight profile
  5. Decreased radar performance due to condensed water in waveguide cavities
  6. Achieving better than -55°C dew point
  7. Providing safety relief to prevent over pressure at antenna array
  8. Maintain positive pressure throughout waveguide/antenna system during non-operational/storage scenarios

Solutions

  1. Airborne Waveguide Pressurization System (AWPS) - depict image of AWPS
  2. Bottled Waveguide Pressurization System (BWPS) - depict image of BWPS
Unit of Measure

Specifications

Pressure

N/A 5-30 Bottle Type 100 psia

Flow

N/A 30 SCIM to 400 SCIM

Effluent Dew Point

N/A > -55°C Dew Point

Desiccant Life

N/A Up to or beyond 300 operational hours

Power Supply

N/A 24 or 28 VDC

Operating Temperature

N/A -55° to 70° ºC

Altitude

N/A 0-50,000 ft.

Vibration

N/A MIL-STD-810

Shock

N/A MIL-STD-810

ECU

N/A PAC Type PLC Type Solid State

Components

Compressors Types

N/A Bellows Pistons

Motors

N/A Brushless DC

Valves

N/A Aneroid Valve Check Valves Pressure Relief Valve Pressure Transducer Valves Proportional Control Valve Solenoid Valve Directional Control

Options

Options

N/A 1. Bottle/Pressure Vessel 2. Differential Pressure Switch 3. Pressure Transducers 4. Dew Point Sensor 5. Temperature Sensor 6. Rack Mounted