Composite right/left-handed transmission line based compact resonant antenna for rf module integration

An apparatus for transmitting or radiating radio frequencies within a composite right/left-handed (CRLH) transmission line, comprising:

• a first dielectric layer forming a structure substrate;
• a second dielectric layer positioned over said first dielectric layer;
• a ground plane disposed under said first dielectric layer;
• a first plurality of conductive elements disposed over said second dielectric layer;
• a second plurality of conductive elements disposed between said first and second dielectric layers and positioned to form metal-insulator-metal (MIM) capacitors in response to proximity with said first plurality of conductive elements, said capacitors lower the resonant frequency of said apparatus;
• a plurality of vias interconnecting said first plurality of conductive elements with said ground conducting layer;
• and
• at least one feed line attached to said first plurality of conductive elements.

An apparatus, comprising:

• a first dielectric layer forming a structure substrate;
• a second dielectric layer positioned over said first dielectric layer;
• a ground plane disposed beneath said first dielectric layer;
• a first plurality of conductive elements disposed over said second dielectric layer;
• a second plurality of conductive elements disposed between said first and second dielectric layers and positioned to form metal-insulator-metal (MIM) capacitors in response to proximity with said first plurality of conductive elements, said capacitors lower the resonant frequency of said apparatus;
• a plurality of vias interconnecting said first plurality of conductive elements with said ground plane;
• and
• at least one feed line attached to said first plurality of conductive elements;
• said apparatus is configured using an equivalent circuit Right-Hand (RH) series induction (LR) and shunt capacitor (CR), and Left-Hand (LH) series capacitor (CL) and induction (LL), in which effective permittivity (e) and permeability (m) of the structure are manipulated by the choice of CR, LR, CL, and LL;
• said first and second plurality of conductive elements comprise conductive plates or strips arranged in a one or two dimensional array of cells;
• said first dielectric layer comprises a material having a first dielectric constant and a first thickness, and said second dielectric layer comprises a material having a second dielectric constant and a second thickness;
• and
• said second dielectric constant is higher than said first dielectric constant, and said second dielectric thickness is less than said first dielectric thickness.