The most common RF mixer is known as
A. Jones Cell
B. Gilbert Cell
C. Barrie Cell
D. Howard Cell
Answer is B… The basic circuit concept that is employed in the Gilbert cell mixer was originally devices by H E Jones, but it was used in other applications.
The Gilbert cell mixer topology was first used as a mixer by Barrie Gilbert around 1967 / 68. Although Gilbert himself did not suggest the use of the name, it is widely used to describe this mixer circuit topology.