US7280033B2_page_19

US7280033B2 | page 19 | https://thedailydialectics.com/pdfs/wipow/US7280033B2/US7280033B2.pdf

US 7,280,033 B2 9 filters for the second frequency band. The output of BPF2 is supplied to a second amplifier (AMP2) that supplies the amplified data signal to the first wave communicator 22 for transmission as a surface wave. The amplifier may designed to receive power in order to amplify the data…