Multi-band wireless communication device and method
OwnerIan J Forsterinventor
Life of this patent
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Abstract
The present invention relates to a wireless communication device, such as a transponder, that has a plurality of antennas for multi-frequency usage. The wireless communication device comprises a control system, communication electronics, memory, and the aforementioned antennas. A wireless communication device having a pole antenna may be used with one or more loop conductor antennas to achieve the desired operating frequencies. A wireless communication device having a dipole antenna may be coupled across a loop conductor antenna to provide different loop conductor configurations depending on the frequency.
Claims18
A wireless communication device comprising:
- communication electronics;
- a first loop conductor antenna configured to operate at a first frequency, a second loop conductor antenna configured to operate at a second frequency, and a pole antenna configured to operate at a third frequency, wherein the first, second, and third frequencies are different;
- wherein the pole antenna is operatively connected to the communication electronics;
- wherein the first loop conductor antenna and the second loop conductor antenna are both operatively connected to the communication electronics via the pole antenna;
- wherein the communication electronics are configured to selectively communicate with a remotely positioned interrogator through at least one of the first loop conductor antenna, the second loop conductor antenna, or the pole antenna at least one of the respective first, second, or third frequencies;
- and
- wherein the first loop conductor antenna and the second loop conductor antenna are capacitively coupled to the pole antenna to operate respectively at the first and second operating frequencies.
A wireless communication device comprising:
- wireless communication electronics;
- a pole antenna operatively connected to the wireless communication electronics, wherein the pole antenna is configured to operate at a first operating frequency;
- and
- a loop antenna capacitively coupled to the pole antenna;
- wherein the loop antenna is capacitively coupled to the pole antenna to form a first effective loop antenna configured to operate at a second operating frequency and to form a second effective loop antenna configured to operate at a third operating frequency;
- wherein the wireless communication electronics are coupled to the loop antenna via the capacitive coupling of the loop antenna to the pole antenna;
- and
- wherein the wireless communication electronics are configured to communicate with a remote interrogator through any one of the pole antenna, the first effective loop antenna, or the second effective loop antenna.
A system of antennas for operating at multiple frequencies, the system comprising:
- at least one of a first type of antenna, wherein the first type of antenna is a pole antenna;
- at least one of a second type of antenna, wherein the second type of antenna is a loop antenna;
- at least one integrated circuit coupled with the at least one of the first type of antenna;
- and
- a capacitive coupling between the at least one of the first type of antenna and the at least one of the second type of antenna, wherein the capacitive coupling is configured to divide the at least one of the second type of antenna into at least two effective antennas of the second type of antenna, and wherein each of the at least one of the first type of antenna and the at least two effective antennas are resonant at a different respective frequency.
A method of providing a transponder for operating at a plurality of frequencies, the method comprising:
- providing at least one of a first type of antenna, wherein the first type of antenna is a pole antenna;
- providing at least one of a second type of antenna, wherein the second type of antenna is a loop antenna;
- coupling at least one integrated circuit to the at least one of the first type of antenna;
- and
- providing a capacitive coupling between the at least one of the first type of antenna and the at least one of the second type of antenna, wherein the capacitive coupling is configured to divide the at least one of the second type of antenna into at least two effective antennas of the second type of antenna, and wherein each of the at least one of the first type of antenna and the at least two effective antennas are resonant at a different respective frequency.
Dependencies are inferred from the claim text.