Abstract:
A phase shift selector which utilizes a two-stage binary fan out circuit configuration to establish phase states. The four branches of the fan out are terminated by means of either an open circuit or a short circuit to produce two reflected signals having relative phases of either 90 degrees or 180 degrees when the terminations are open-circuited, or 270 degrees or 360 degrees when the terminations are short-circuited. A selector switch then selects one of these four signals as the output signal.