Radio frequency identification transponder having a high gain antenna configuration

A radio frequency tag system comprising:

• at least one radio frequency integrated circuit,
• at least one antenna coupled to the radio frequency integrated circuit;
• and
• at least one reflector disposed proximally to said antenna, said reflector adapted for collecting and focusing energy from the electromagnetic field to/from said antenna so that the gain of said antenna is increased, wherein the at least one reflector further comprises multiple reflectors for reflecting electromagnetic radiation to/from the at least one antenna.

A radio frequency tag system comprising:

• at least one radio frequency integrated circuit,
• at least one antenna coupled to the radio frequency integrated circuit;
• and
• at least one reflector disposed proximally to said antenna, said reflector adapted for collecting and focusing energy from the electromagnetic field to/from said antenna so that the gain of said antenna is increased, wherein said at least one reflector further comprises a shape comprising at least one of concave, cylindrical, corrugated, paraboloidal, ellipsoidal, hyperbolic, hyperboloidal, spherical, and spheroid.

A radio frequency tag system comprising:

• at least one radio frequency integrated circuit,
• at least one antenna coupled to the radio frequency integrated circuit;
• and
• at least one reflector disposed proximally to said antenna, said reflector adapted for collecting and focusing energy from the electromagnetic field to/from said antenna so that the gain of said antenna is increased, the at least one antenna further comprising a patch antenna, wherein the patch antenna further comprises a multi-layer patch antenna.

A radio frequency tag system comprising:

• at least one radio frequency integrated circuit,
• at least one antenna coupled to the radio frequency integrated circuit;
• and
• at least one reflector disposed proximally to said antenna, said reflector adapted for collecting and focusing energy from the electromagnetic field to/from said antenna so that the gain of said antenna is increased, the at least one antenna further comprising plural patch antennas coupled together in a patch antenna array.

A radio frequency tag system comprising:

• at least one radio frequency integrated circuit,
• at least one antenna coupled to the radio frequency integrated circuit;
• and
• at least one reflector disposed proximally to said antenna, said reflector adapted for collecting and focusing energy from the electromagnetic field to/from said antenna so that the gain of said antenna is increased, wherein the at least one high gain antenna further comprises a dipole antenna comprising separated first and second patch elements.

A radio frequency tag system comprising:

• at least one radio frequency integrated circuit;
• means for communicating signals to/from the radio frequency integrated circuit with high gain, wherein the communicating means further comprises a patch antenna, wherein the patch antenna further comprises a patch antenna array, wherein the patch antenna array further comprises a plurality of patches coupled to the at least one radio frequency integrated circuit;
• and
• at least one impedance transformer coupled between the plurality of patches and the at least one radio frequency integrated circuit.

A radio frequency tag system comprising:

• at least one radio frequency integrated circuit;
• at least one high gain antenna coupled to the radio frequency integrated circuit, said at least one high gain antenna including a multi-layer patch antenna, said multi-layer patch antenna including a feeder patch coupled to the at least one radio frequency integrated circuit and a radiating patch spaced from the feeder patch;
• and
• a hybrid coupler coupled between the at least one radio frequency integrated circuit and the feeder patch, the hybrid coupler being coupled to the feeder patch at two points having a phase difference therebetween of 90°.

A radio frequency tag system comprising:

• at least one radio frequency integrated circuit;
• means for communicating signals to/from the radio frequency integrated circuit with high gain, said means including a multi-layer patch antenna, said multi-layer patch antenna further comprising a feeder patch coupled to the at least one radio frequency integrated circuit and a radiating patch spaced from the feeder patch;
• and
• a hybrid coupler coupled between the at least one radio frequency integrated circuit and the feeder patch, the hybrid coupler being coupled to the feeder patch at two points having a phase difference therebetween of 90°.