Printed antenna and applications thereof

A radio comprises:

• receiver section;
• transmitter section;
• printed antenna;
• and
• antenna switch operable to connect either the receiver section or the transmitter section to the printed antenna, wherein the printed antenna includes:
• first dipole antenna section having a first radiation section and a first frequency section;
• and
• second dipole antenna section having a second radiation section and a second frequency section, wherein the second dipole antenna is electrically coupled to the first dipole antenna such that currents of the first and second frequency sections substantially cancel and currents of the first and second radiation sections are substantially cumulative.

A radio comprises:

• receiver section;
• transmitter section;
• printed antenna;
• and
• antenna switch operable to connect either the receiver section or the transmitter section to the printed antenna, wherein the printed antenna includes:
• first dipole antenna section having a first radiation section and a first frequency section;
• and
• second dipole antenna section having a second radiation section and a second frequency section, wherein the second dipole antenna is electrically coupled to the first dipole antenna such that currents of the first and second frequency sections are substantially cumulative and currents of the first and second radiation sections substantially cancel.