Antenna with active elements

An antenna system, comprising:

• an isolated magnetic dipole (IMD) element, the IMD element comprising:
• a first parallel conductor portion, a second parallel conductor portion, and a third parallel conductor portion, each of the first through third conductor portions being oriented parallel with respect to one another;
• a first perpendicular conductor portion extending between a first end of the first parallel conductor portion and the second parallel conductor portion;
• a second perpendicular conductor portion extending between a second end of the first parallel conductor portion and the third parallel conductor portion, wherein the second end of the first parallel conductor portion is opposite the first end;
• wherein each of the first through third parallel conductor portions and the first and second perpendicular conductor portions are each disposed within a common horizontal plane positioned at a height above a circuit board thereby defining a volume of the antenna therein;
• characterized in that the antenna system further comprises:
• a parasitic conductor element positioned adjacent to said IMD element;
• and
• an active tuning element positioned on the parasitic element;
• wherein said active tuning element is configured to adjust a frequency response of the antenna system;
• and
• wherein the parasitic conductor element is not parallel with the IMD element such that a height of the parasitic conductor element relative to the circuit board varies along a length thereof.