The authors of this study developed a high-power inductive
coupler with a high-voltage DC blocker that is capable of delivering
up to 100 kW of CW RF power at 176 MHz and 4 kV DC. The
high-power indictive coupler was developed at the Soreq Nuclear
Research Center for the radio-frequency quadrupole of the Soreq
Applied Research Accelerator Facility. The purpose of the DC blocker
is to enable the application of high-voltage DC bias to the inner
conductors of the couplers in order to prevent the multipacting
phenomena. A new, mechanically and thermally improved, version of
the RF coupler is designed and implemented in conjunction with the
DC blocker. The underlying design principles, indigenous
development, and results of tests of the coupler are presented
here.