Conventional analog RF transceiver implementations have many performance limitations that include RF frequency dependency, non-linearities, high insertion losses, circuit tuning requirements and expensive inter-connections that ultimately bound the performance of the complete earth terminal. These limitations are greatly multiplied when operational scenarios call for multiple frequency bands, multiple beams and multiple channel configurations. These analog RF channel designs are highly frequency dependent and not optimized for an OSA. As a result, multi-band SATCOM terminals are often found to be complex and costly. An all-digital RF implementation can potentially solve these problems as it can provide a highly linear digital RF signal distribution system and can provide multiple band, frequency and channel operation within a single integrated product.
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