Method of and inductor layout for reduced VCO coupling

A method of reducing mutual electromagnetic coupling between a first inductor and a second inductor on a semiconductor die, comprising:

• forming the first inductor to reduce a far field, said step of forming the first inductor comprising:
• forming a first loop having a shape that is substantially symmetrical about a first predefined axis;
• forming a second loop having a size and shape substantially identical to the first loop;
• orienting the second loop in relation to the first loop such that a magnetic field emanating from the second loop tends to cancel a magnetic field emanating from the first loop;
• and
• connecting two closely spaced terminals to the first loop for supplying electrical current to the first and second loops while minimizing magnetic field contributions from the terminals;
• and
• positioning a second inductor at a predetermined distance from the first inductor, wherein the mutual electromagnetic coupling between the first inductor and the second inductor is reduced as a result of the first inductor having a reduced electromagnetic field.

An inductor having a reduced far field, comprising:

• a first loop having a shape that is substantially symmetrical about a first predefined axis;
• a second loop having a size and shape substantially identical to the first loop, said second loop arranged such that a magnetic field emanating therefrom tends to cancel a magnetic field emanating from said first loop;
• and
• two closely spaced terminals connected to the first loop for supplying electrical current to the first and second loops while minimizing magnetic field contributions from the terminals.