Method for designing coupling-function based millimeter wave electrical elements

A portable device, comprising:

• an integrated circuit (IC) comprising a multi-layer substrate, wherein the IC further comprises:
• a first strip of conductive material wound on a first layer of the multi-layer substrate according to a first number of turns to form a first inductor;
• a second strip of conductive material wound on the first layer of the multi-layer substrate and, in part, on a second layer of the multi-layer substrate according to a second number of turns to form a second inductor, wherein the first strip of conductive material and the second strip of conductive material are wound to form a spiraled structure such that the second strip of conductive material is magnetically coupled with the first strip of conductive material;
• a third strip of conductive material formed around the first inductor and the second inductor on a third layer of the multi-layer substrate as viewed from a perspective perpendicular to the third layer, wherein a first part of the third strip of conductive material is shorted to a second part of the third strip of conductive material via a fourth strip of conductive material, wherein the first inductor and the second inductor are formed over the fourth strip of conductive material as viewed from the perspective perpendicular to the third layer, and wherein the third strip of conductive material is used to provide a reference potential for a circuit comprising the first inductor and the second inductor;
• and
• a plurality of ports for the spiraled structure.

An apparatus, comprising:

• a multi-layer substrate;
• a first strip of conductive material wound on a first layer of the multi-layer substrate according to a first number of turns to form a first inductor;
• a second strip of conductive material wound on the first layer of the multi-layer substrate and, in part, on a second layer of the multi-layer substrate according to a second number of turns to form a second inductor, wherein the first strip of conductive material and the second strip of conductive material are wound to form a spiraled structure such that the second strip of conductive material is magnetically coupled with the first strip of conductive material;
• a third strip of conductive material formed around the first inductor and the second inductor on a third layer of the multi-layer substrate as viewed from a perspective perpendicular to the third layer, wherein a first part of the third strip of conductive material is shorted to a second part of the third strip of conductive material via a fourth strip of conductive material, wherein the first inductor and the second inductor overlap the fourth strip of conductive material as viewed from the perspective perpendicular to the third layer, and wherein the third strip of conductive material is used to provide a reference potential for a circuit comprising the first inductor and the second inductor;
• and
• a plurality of ports for the spiraled structure.