LINEAR SPACE TECHNOLOGY

SSPA Linearizers

Drop-In Linearizers for GaAs/GaN Flight SSPAs

Our Solid State Predistortion Linearizers provide the correction characteristic for SSPA transfer curves

• Available for UHF, L, S, C and X Band
  • Drop-in / Connectorized
  • Internally Temperature Compensated
  • Flight Qualified with Heritage

• External Control of Mag and Phase Nonlinear Transfer
• Allows Performance optimization during SSPA alignment
• Allows SSPA Output Stages to be Temperature Compensated via the Linearizer

Ku-2050 LCAMP

2050 MHz Ku Linearized Channel Amplifier

10.7 to 12.75 GHz covers ITU 1,2,3 and extended D/L

• Designed for smart inventory to reduce lead time

FG and ALC modesPulse Bus Interface currently in qualification

• Serial Interfaces for other platforms as needed

First LCAMP design with Microcontroller-based architecture
Random-access setpoints

• Reconfigurable for smart channelization
• State reversion
• Rapid configuration for multiple bus interfaces

Separate Gain (Flux) and PHASE Adjustments

• Performance optimization at HPA integration

Linearized UHF SSPA – Flight Qualified with Heritage

• Low band (250 MHz) and High band (370 MHz)
• 20 and 40 W models
• High-reliability GaAs FET output stages with a predistortion linearized front-end.
• Linear multichannel communications including BPSK, QPSK, WSS.
• 1 W per comm channel, up to 10 channels with 48 dB linear gain.

GPS GaN SSPA

• Developed under Phase 2 SBIR with AFRL
• Linearizer Built into HPA PreDriver Stages – optimized for single-carrier AM/PM conversion close to saturation
• Commandable over 5 dB power range (125 to 400 W). Variable drain voltage maintains good effciency
• VSWR Protect Circuit replaces expensive, bulky Isolator
• 70 V EPC designed by LST in partner with Astro Space, LLC of East Windsor, NJ (former RCA/LM power supply designers)