Slim Booster Bars for Electronic Devices

A radiation booster bar comprising:

• first and second substantially parallel conductive surfaces;
• a dielectric material that supports the first and second conductive surfaces;
• wherein the radiation booster bar has a slim width factor greater than 2, the slim width factor being a ratio between a length and a width of the radiation booster bar;
• wherein the first and second conductive surfaces are connected substantially in the middle of two opposite edges of the first or second conductive surface such that a first resonant frequency of the radiation booster bar is higher than a highest frequency of a first frequency region of operation of the radiation booster;
• and
• wherein the radiation booster bar is not resonant within any frequency range of operation of the radiation booster bar.

A radiation booster bar comprising:

• first and second substantially parallel conductive surfaces connected by at least one via;
• a dielectric material that supports the first and second conductive surfaces;
• wherein the radiation booster bar has a slim height factor greater than 3, the slim height factor being a ratio between a length and a height of the radiation booster bar;
• wherein the radiation booster bar has a maximum size smaller than 1/15 of the free-space wavelength corresponding to a lowest frequency of a first frequency region of operation;
• and
• wherein the radiation booster bar is not resonant within any frequency range of operation of the radiation booster bar.