  Spin transfer torque oscillators (STOs) based on magnetic tunnel junction
(MTJ) devices are emerging as a possible replacement for complementary
metal-oxide semiconductors for radio-frequency (RF) signal generation.
Advantages include low power consumption, small device area, and large
frequency tunability. But such a single device cannot achieve the necessary
noise performance for RF applications. It has been reported lately that a
network of globally coupled STOs achieves significant improvement in phase
noise. The study here is to propose use of such coupled STOs as
self-oscillating RF mixers. Critical mixer performance parameters, including
conversion gain, output power, and linearity, are discussed.
