Method and apparatus for mixing signals

Details Method and apparatus for mixing signals Method and apparatus for mixing signals

1998-07-13

1999-10-05

Cuchlinski, Jr., William A.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455327, 455333, 333103, H04B 126

Patent

active

059638583

ABSTRACT:
An apparatus includes a first mixer port (12), a second mixer port (14), a third mixer port (16), a first hybrid device (20) responsive to the first mixer port (12) and having a first and a second input/output port, a second hybrid device (40)responsive to the second mixer port (14), the third mixer port (16) responsive to the second hybrid device (40), and a switching device (30). The switching device (30) includes a first port (31) responsive to the first input/output port of the first hybrid device (20), a second port (32) responsive to the second port of the first hybrid device (20),a third port (34) in communication with the second hybrid device (40), a fourth port (36) in communication with the second hybrid device (40), and a switching element responsive to the first, second, third, and fourth ports (31, 32, 36, 34). The switching element includes a first field effect transistor (60) and a second field effect transistor (62). The first field effect transistor (60) is responsive to the first port (31) and is coupled to the third port (34), and the second field effect transistor (62) is responsive to the second port (32) and is coupled to the fourth port (36).

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