MULTI-BAND WIRELESS COMMUNICATION DEVICE AND METHOD
First Claim
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1. A wireless communication device, comprising:
- communication electronics connected to a pole antenna having at least one tab;
a first loop antenna positioned proximate to the pole antenna and capacitively coupled to the pole antenna at a first frequency, wherein the capacitive coupling forms a first resonant circuit between the communication electronics and the first loop antenna configured to operate at the first frequency; and
a second loop antenna positioned proximate to the pole antenna and capacitively coupled to the pole antenna at a second frequency, wherein the capacitive coupling forms a second resonant circuit between the communication electronics and the second loop antenna configured to operate at the second frequency;
wherein the communication electronics and the pole antenna form a third resonant circuit configured to operate at a third frequency that is different from the first and second frequencies.
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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.
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Citations
24 Claims
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1. A wireless communication device, comprising:
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communication electronics connected to a pole antenna having at least one tab; a first loop antenna positioned proximate to the pole antenna and capacitively coupled to the pole antenna at a first frequency, wherein the capacitive coupling forms a first resonant circuit between the communication electronics and the first loop antenna configured to operate at the first frequency; and a second loop antenna positioned proximate to the pole antenna and capacitively coupled to the pole antenna at a second frequency, wherein the capacitive coupling forms a second resonant circuit between the communication electronics and the second loop antenna configured to operate at the second frequency; wherein the communication electronics and the pole antenna form a third resonant circuit configured to operate at a third frequency that is different from the first and second frequencies. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A method of providing a wireless communication device, the method comprising:
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providing a pole antenna having at least one tab; connecting communication electronics to the pole antenna; positioning a first loop antenna proximate to the pole antenna to capacitively couple the first loop antenna to the pole antenna at a first frequency such that the capacitive coupling forms a first resonant circuit between the communication electronics and the first loop antenna at the first frequency; and positioning a second loop antenna proximate to the pole antenna to capacitively couple the second loop antenna to the pole antenna at a second frequency such that the capacitive coupling forms a second resonant circuit between the communication electronics and the second loop antenna at the second frequency; wherein the communication electronics and the pole antenna form a third resonant circuit configured to operate at a third frequency that is different from the first and second frequencies. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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Specification