Active quadrature power splitter

Details Active quadrature power splitter Active quadrature power splitter

1996-11-12

1998-06-16

Gensler, Paul

Wave transmission lines and networks

Plural channel systems

Having branched circuits

327255, 330148, 330277, 330286, 330306, 333128, H03H 1136

Patent

active

057677565

ABSTRACT:
An active quadrature power splitter having low power consumption is small in size and is inexpensive, for obtaining two output signals of which the phase difference is 90 degrees. Since the active quadrature power splitter operates as a microwave amplifier for obtaining two amplified microwave outputs having an equal magnitude and a phase difference of 90 degrees by using a matching circuit of the amplifier, a power gain can be obtained. Also, since a single FET or HBT is used and two output signals are generated in an output impedance matching circuit, the circuit becomes simplified. Therefore, the circuit can be easily implemented in a monolithic microwave IC and the chip size can be reduced.

REFERENCES:
patent: 4511813 (1985-04-01), Pan
patent: 4987384 (1991-01-01), Yamanouchi et al.
patent: 5361038 (1994-11-01), Allen et al.

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