Solid State Microwave Device Design and Production
 
HMIC & MMIC Technology

Traveling Wave Tube Amplifier Design and Production
 
Ka Band TWTA
Ku Band TWTA
X Band TWTA
C Band TWTA
S Band TWTA

Military Radar Sub-system Technology
 
uP Software and Digital Circuit Board Design
IF Amplifiers
Automatic Frequency Control Units
X-Band Transmitter Driver Units
L-Band Receivers
Ka~S Band Amplifier
Mixer
L-Band Phase Shifters
Synthesizer

Power Supply Technology
 
Magnetron Modulators
  .Line-Type, SCR-Magnetic
  .Up to 30KV, 30A peak output
High Voltage High Power Switching Mode Power Supplies
  .PWM, SCR, QR Control
  .Switching Frequency up to 200KHz
  .Up to 26KV, 2KW output


(A) The Helix Structure of Helix TWT
 
(B)The Cavity Structure of Coupled-Cavity TWT
 
(C) Switching-Mode Power Supply Compare with Line-Type Power Supply
 
Compare Item Line-Type Power Supply Switching Mode Power Supply
Efficiency Low (30%~50%) High (>60%)
Size Large Small
Weight Heavy Light
Circuit Simple Complicated
Stability High Medium
Ripple Small Large
Transient Response Fast Medium
Cost Low(100%)(40W~150W) Medium(150%)
Electromagnetic Interference Small Large
Input Voltage Range AC source only DC or AC
Easy Assembly Transformer can not mount on PCB Component is easy mounting on PCB
Wide Band TWTA Block Diagram
 
 
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