Line junction with common branching point - with characteristic impedance of lines greater than load impedance at branching point

摘要

Several lines go out from the branching point. Their electric length is a quarter wavelength at the mean operational frequency. Their other ends are connected through selective devices or switches ot a transmitter or a receiver. The common load resistor is in the form of an antenna which is connected to the branching point. The characteristic impedance of the lines (L1-L4) going out from the branching point (P) is greater than the load impedance (R) effective at the branching point (P).