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Dan Bobyn
Engineering Ltd.

 

 

 

 

 

 

 

 

 

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L Band Amplified Signal Combiner

This project required developing a signal processing architecture and associated circuits to implement an active signal multiplexer for unsynchronized multiple L Band TDMA/FDMA SATCOM channels over a common single antenna.

Unique technical challenges included using both high speed time and very low IMD frequency domain transmit signal combining, high speed transmit signal detection and path switching for the multiple Tx signals, fast Tx/Rx switching and spectrum preserving high power linear LDMOS amplification. Critical spectral mask, IMD, output power level, noise figure and filter performance requirements were met to achieve government regulatory, industry and RTCA standards.

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2017 Dan Bobyn Engineering Ltd.