MICROSTRIP DUAL CHANNEL SPLITTER Russian patent published in 2008 - IPC H01P5/12 

FIELD: microwave engineering.

SUBSTANCE: microwave dual channel splitter includes housing, upper and lower covers of the housing, a two-sided printed circuit board with two microstrip sections on its upper and lower sides that are implemented on the basis of symmetrical high-Q transmission line with impedance ρ₁ equal to , where ρ₀ is standard impedance of microstrip sections of the transmission line at input and output legs. On the upper side of this board one pair of ends of microstrip sections is connected to output leg and another ends are connected with a load resistor and output legs. On the lower side of this board one pair of ends of microstrip sections are also connected with input leg and another ends are connected with output legs. Microstrip sections together form a matching device. On each side, upper and lower, of the board two asymmetrical microstrip sections are inserted representing a microstrip line (MSL). On the upper side these microstrips are connected by their ends to microstrip sections of symmetrical high-Q transmission line with load resistor and with output legs. On the lower side of the board microstrip sections of MSL play the role of screens of upper microstrip sections of MSL and their ends are connected to the housing. Links connect upper microstrip MSL conductors with their screens, and all together they form two short-circuit stubs. These short-circuit stubs together with microstrip sections of the high-Q transmission line form a matching device. On the upper side of the board at the output leg side the microstrip sections of transmission line are widened and form an additional matching device of rectangular shape.

EFFECT: reduction of dimensions with provision of wide (octave and more) range of operating frequencies at the same time with lower SWR value while maintaining enough level of operating power, as well as the possibility of tuning parameters of microwave devices within antenna-feeder system at the phase of adjustment.

4 cl, 11 dwg