Hand held RFID reader with dipole anthenna
First Claim
1. A hand held Radio Frequency Identification (RFID) reader comprising:
- a housing having a perimeter around an inner edge;
a full-sized dipole antenna including two antenna elements coupled by a balun transformer;
a transceiver, coupled to the dipole antenna by a suitable cable, the transceiver adapted to send and receive signals;
a processor;
a memory;
a display adapted to display a plurality of RFID tag information;
wherein the display is coupled to the processor and the memory; and
wherein the first and the second antenna segments of the dipole antenna are wrapped along the perimeter around the inner edge of the housing.
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Accused Products
Abstract
A hand held Radio Frequency Identification (RFID) reader is provided. The reader includes a housing having a perimeter around an inner edge. The reader also includes a full-sized dipole antenna including two antenna elements coupled by a balun transformer. The antenna has nearly a unity gain over a range of angles. The reader also includes a transceiver, coupled to the dipole antenna by a suitable cable, the transceiver adapted to send and receive signals. The reader further includes a processor for processing signals received at the antenna. The first and the second antenna segments of the dipole antenna are wrapped along the perimeter around the inner edge of the housing.
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Citations
16 Claims
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1. A hand held Radio Frequency Identification (RFID) reader comprising:
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a housing having a perimeter around an inner edge;
a full-sized dipole antenna including two antenna elements coupled by a balun transformer;
a transceiver, coupled to the dipole antenna by a suitable cable, the transceiver adapted to send and receive signals;
a processor;
a memory;
a display adapted to display a plurality of RFID tag information;
wherein the display is coupled to the processor and the memory; and
wherein the first and the second antenna segments of the dipole antenna are wrapped along the perimeter around the inner edge of the housing. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A Radio Frequency Identification (RFID) system comprising:
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a plurality of RFID tags, wherein each of the RFID tags is adapted to transmit a RFID tag signal; and
at least one hand held RFID reader adapted to receive the plurality of RFID tag signals, wherein the hand held RFID reader includes;
a full-sized dipole antenna including two antenna elements coupled together at one end;
a transceiver, coupled to the dipole antenna by a suitable cable, the transceiver adapted to send and receive signals;
a processor;
a memory;
a display screen adapted to display a plurality of RFID tag information;
wherein the display is coupled to the processor and the memory; and
wherein the antenna elements of the dipole antenna are wrapped along the perimeter around the inner edge of the housing. - View Dependent Claims (8, 9, 10, 11, 12)
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13. A method of identifying objects, the method comprising:
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transmitting RFID tag information;
receiving RFID tag information using a hand held RFID reader, wherein the hand held RFID reader includes a dipole antenna including two antenna elements coupled together at one end;
processing the RFID tag information; and
displaying the RFID tag information on a display of the hand held RFID reader.
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14. A method of manufacturing a hand held RFID reader, the method comprising:
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forming a housing;
wrapping a first and a second antenna segment of a dipole antenna along the perimeter around the inner edge of the housing;
providing a transceiver adapted to send and receive signals;
providing a processor;
providing a memory; and
providing a display adapted to display a plurality of RFID tag information. - View Dependent Claims (15)
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16. A hand held Radio Frequency Identification (RFID) reader comprising:
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a housing having a perimeter around an inner edge;
a full-sized dipole antenna including two antenna elements coupled by a balun transformer, wherein the antenna has nearly a unity gain over a range of angles;
a transceiver, coupled to the dipole antenna by a suitable cable, the transceiver adapted to send and receive signals;
a processor for processing signals received at the antenna; and
wherein the first and the second antenna segments of the dipole antenna are wrapped along the perimeter around the inner edge of the housing.
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Specification