SWITCHABLE COMBINER UNIT AND INTEGRATION COMBINER APPARATUS USING THE SAME

摘要

PURPOSE: A switchable combiner unit is provided to minimize an insertion loss according to a path by establishing a match part to a two-path combination and using an open stub and a short stub at combining for the other paths. CONSTITUTION: The first and second input ports(Pin1,Pin2) transfer an input signal. The first and second lines(310,330) are disposed to be connected to the first and second input ports and transfer a signal. The first and second switching parts(S1,S2) switch a common contact and the first and second lines according to a path number. A common contact(320) combines signals from the first and second lines. The third line receives a signal from the command contact and transfers a signal to an output port(Pout), which outputs a received signal. The third switch part(S3) switches the third line and a short stub(350). An open stub(340) is disposed to be connected to the third line in order to establish a match condition for the maximum path number. A short stub matches for a remaining path number except the maximum path number.