(60) Provisional application No. 60/374,531, filed on Apr. A MIMO radio transceiver to
support processing of multiple 22, 2002, provisional application No. 60/376,722, signals for …

Tunable upconversion mixers that have a controllable passband response and provide
substantial image rejection, making costly post-mixing filtering at least optional, if not …

(57) ABSTRACT A MIMO radio transceiver to support processing of multiple signals for
simultaneous transmission via corresponding ones of a plurality of antennas and to Support …

(57) ABSTRACT A mixer circuit used in a radio receiver for mixing two frequencies and
providing an intermediate frequency which is the difference of the two frequencies. Excellent …

(57) ABSTRACT A mixer circuit arrangement 30 comprises a complementary transconductor
circuit 31 and a mixer Stage 32. The comple mentary transconductor circuit 31 includes two …

An exemplary embodiment of the present invention described and shown in the specification
and drawings is a transceiver with a receiver, a transmitter, a local oscillator (LO) generator …

(63) Continuation of application No. 09/691,634. filed O Density Bonding Wire”, 8099a IEEE
Microwave & Guided Wave Oct. 18, 2000, OW Pat. No. 7,113,744, which is a Letters, No. 8 …

The present invention relates to a differential amplifier and a mixer for improving the
linearity. The differential amplifier circuit according to this present invention, includes first …

100 sistor is configured to be biased in a linear operating region. The mixing transistor
includes a drain coupled to the sources of the first transistor and the second transistor. The …

A mixer circuit is provided for receiving first and second input signals to be mixed and for
producing a mixed output signal. The mixer circuit comprises a pair of switching transistors …