Slow wave structure for millimeter wave antennas

A printed circuit board comprising:

• a first layer and a second layer substantially parallel to and spaced apart from the first layer;
• an integrated circuit connected to the first layer and configured to provide a first electronic signal over a first conductive path between a first pair of conductive points and a second electronic signal over a second conductive path between a second pair of conductive points;
• wherein the first conductive path includes a first narrow section extending between a first broad section and a second broad section, wherein:
• the first narrow section has a first dimension;
• and
• the first broad section and the second broad section have a second dimension, the second dimension greater than the first dimension;
• and
• wherein the second conductive path includes a finger extending toward the narrow section of the first conductive path and having a third dimension, the third dimension greater than the second dimension.

A mobile device comprising:

• a printed circuit board having a first layer and a second layer substantially parallel to and spaced apart from the first layer;
• an integrated circuit comprising a transceiver configured to receive radio frequency signals via a downlink from an access point, the transceiver connected to the first layer and configured to provide a first electronic signal over a first conductive path between a first pair of conductive points and a second electronic signal over a second conductive path between a second pair of conductive points;
• wherein the first conductive path includes a first narrow section extending between a first broad section and a second broad section, wherein:
• the first narrow section has a first dimension;
• and
• the first broad section and the second broad section have a second dimension, the second dimension greater than the first dimension;
• and
• wherein the second conductive path includes a finger extending toward the narrow section of the first conductive path and having a third dimension, the third dimension greater than the second dimension.

A base station comprising:

• a printed circuit board having a first layer and a second layer substantially parallel to and separated from the first layer;
• an integrated circuit transceiver comprising a plurality of antenna feeds for an antenna array for downlink radio signal transmission, at least some of the plurality of antenna feeds being connected to the first layer and configured to provide a first electronic signal over a first conductive path between a first pair of conductive points and a second electronic signal over a second conductive path between a second pair of conductive points;
• wherein the first conductive path includes a first narrow section extending between a first broad section and a second broad section, wherein:
• the first narrow section has a first dimension;
• and
• the first broad section and the second broad section have a second dimension, the second dimension greater than the first dimension;
• and
• wherein the second conductive path includes a finger extending toward the narrow section of the first conductive path and having a third dimension, the third dimension greater than the second dimension.

An electronic system comprising:

• a printed circuit board (PCB) having a first layer and a second layer substantially parallel to the first layer;
• an integrated circuit (IC) connected to the first layer and configured to provide a first electronic signal over a first conductive path between a first pair of conductive points and a second electronic signal over a second conductive path between a second pair of conductive points;
• wherein the first conductive path includes a first narrow section extending between a first broad section and a second broad section, wherein:
• the first narrow section has a first dimension;
• and
• the first broad section and the second broad section have a second dimension, the second dimension greater than the first dimension;
• and
• wherein the second conductive path includes a finger extending toward the narrow section of the first conductive path and having a third dimension, the third dimension greater than the second dimension.