Totem pole mixer having grounded serially connected stacked FET

Details Totem pole mixer having grounded serially connected stacked FET Totem pole mixer having grounded serially connected stacked FET

1997-09-09

2000-05-16

Urban, Edward F.

Telecommunications

Receiver or analog modulated signal frequency converter

Frequency modifying or conversion

455333, 333119, H04B 126

Patent

active

060648724

ABSTRACT:
A high dynamic range mixer apparatus and mixing method where a wide high dynamic range is achieved in part due to the use of a series pair of switching devices that are matched so as to afford complete or substantial cancellation of nonlinearity distortion. The inventive structure and method preserves the compensation and cancellation mechanism of the series pair of back-to-back connected FETs without the need for either of an intermediate frequency (IF) balun or a radio-frequency (RF) balun. Typically, the switching devices are PETs, such as for example MESFETs, connected source-to-source with one drain terminal grounded, and a non-grounded or floating switching signal applied between the common gate and common source terminals.

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LaFerrara, H., et al. "GaAs MMIC Passive Mixers for Wireless Applications", M/A-COM, IC Business Unit, Lowell, Massachusetts.

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