Loop antenna array
First Claim
1. A loop antenna array comprising three loop antennas, whereinthe loop antenna array is used for wireless communication using a magnetic field,a direction of a current flowing through the loop antenna arranged in a middle and a direction of a current flowing through each of the loop antennas arranged in both sides are opposite from each other,areas of regions respectively surrounded by the loop antennas are the same, andthe current flowing through the loop antenna arranged in the middle diverges equally and flows into each of the loop antennas arranged in both sides.
1 Assignment
0 Petitions
Accused Products
Abstract
A loop antenna array capable of forming a clear boundary of a communication area is provided. The loop antenna array includes three loop antennas, in which a direction of a current flowing through the loop antenna arranged in the middle and a direction of a current flowing through each of the loop antennas arranged on both sides of the loop antenna arranged in the middle are opposite from each other, and the sum of magnetic moments of the three loop antennas is zero.
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Citations
9 Claims
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1. A loop antenna array comprising three loop antennas, wherein
the loop antenna array is used for wireless communication using a magnetic field, a direction of a current flowing through the loop antenna arranged in a middle and a direction of a current flowing through each of the loop antennas arranged in both sides are opposite from each other, areas of regions respectively surrounded by the loop antennas are the same, and the current flowing through the loop antenna arranged in the middle diverges equally and flows into each of the loop antennas arranged in both sides.
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8. A loop antenna array, comprising:
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nth power of 2 (n is an integer of 1 or greater) loop antenna arrays, wherein for each of the loop antenna arrays; the loop antenna array comprises three loop antennas, a direction of a current flowing through the loop antenna arranged in a middle and a direction of a current flowing through each of the loop antennas arranged in both sides are opposite from each other, areas of regions respectively surrounded by the loop antennas are the same, and the current flowing through the loop antenna arranged in the middle diverges equally and flows into each of the loop antennas arranged in both sides, when a group of the (n−
1)th power of 2 loop antenna arrays is a unitary loop antenna array, a direction of the current flowing through the loop antenna arranged on one end in a first unitary loop antenna array and a direction of the current flowing through the loop antenna arranged on a same position as that one end in a second unitary loop antenna array are opposite from each other.
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9. A loop antenna array comprising:
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at least 2 loop antenna arrays, wherein for each of the loop antenna arrays; the loop antenna array comprises three loop antennas, a direction of a current flowing through the loop antenna arranged in a middle and a direction of a current flowing through each of the loop antennas arranged in both sides are opposite from each other, areas of regions respectively surrounded by the loop antennas are the same, and the current flowing through the loop antenna arranged in the middle diverges equally and flows into each of the loop antennas arranged in both sides, and a 5 loop antenna array arranged between two of the at least 2 loop antenna arrays, wherein current flows through the loop antenna arranged in a middle of the 5 loop antenna array and the loop antennas arranged at a first end and a second end of the 5 loop antenna array in a same direction, current flows through the loop antenna arranged in the middle of the 5 loop antenna array and the loop antennas arranged at both sides of the loop antenna arranged in the middle in opposite directions, a magnetic moment of the loop antenna arranged in the middle of the 5 loop antenna array and the loop antennas arranged at both side of the loop antenna arranged in the middle are twice a magnetic moment of each of the loop antennas arranged at the first and second ends of the 5 loop antenna array, and a direction of the current flowing through the loop antenna arranged at the first end of the 5 loop antenna array and a direction of the current flowing through the loop antenna arranged on a same position as the first end in an adjacent loop antenna array are opposite from each other, and a direction of the current flowing through the loop antenna arranged at the second end of the 5 loop antenna array and a direction of the current flowing through the loop antenna arranged on a same position as the second end in an adjacent loop antenna array are opposite from each other.
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Specification