FIELD: radio engineering for ultra-high and microwave frequency, antennas and instruments. SUBSTANCE: standard phase-shift method involves modification of phase synchronization circuit by means of part of dispersion phasing line to Y-circulation unit with intermediate arm which is connected to high-quality refection resonator. In addition another circuit contains same Y-circulation unit which intermediate arm is connected to moving short circuit jumper in order to balance amplitude of constituents in signals of parallel channels. Central rejection frequency of resonator which is calculated as average of carrier frequencies of signals depends on size and position of tuning capacitance screw. This results in possibility to tune different between signals which depends on resonator bandwidth for 3 dB level, in other words on its connection to external circuits. This dependency is varied by setting different transmission elements which are shaped as diaphragm. Short circuit jumper provides possibility to set central rejection frequency and to locate signal spectrum on frequency axis. Device operations depend on phase-frequency characteristic of resonator circuit which adds constant intermediate differential phase shift which is equal to two right angles for corresponding frequencies greater or lesser than resonant one. This shift is required for signal combination. Y- circulation units are used for generation of directed reflection. EFFECT: possibility to add signals of different bands and carriers to single output circuit; signals can be changed arbitrarily with respect to other signals and difference between carrier frequencies is arbitrary. 2 tbl, 4 dwg
Authors
Dates
1997-03-20—Published
1993-06-08—Filed