ANTENNA AND WIRELESS IC DEVICE
First Claim
1. An antenna comprising:
- an insulator board;
a radiation electrode provided on a first main surface of the insulator board;
a magnetic field electrode connected to the radiation electrode; and
a feeder portion connected to the magnetic field electrode;
whereinthe radiation electrode is arranged in an area surrounding the magnetic field electrode.
1 Assignment
0 Petitions
Accused Products
Abstract
An antenna and a wireless IC device that includes the antenna are provided for which the manufacturing process is simple and for which there is a low probability of a poor connection occurring between a feeder portion and a radiation electrode. An antenna includes a radiation electrode that is provided on a main surface of an insulator board, a ground electrode and/or a counter electrode that is arranged so as to oppose the radiation electrode, and a magnetic field electrode that is connected to the radiation electrode through a connection portion. The magnetic field electrode is defined by line-shaped electrodes and feeds a signal to the radiation electrode from a feeder portion defined by ends of the line-shaped electrodes through the magnetic field electrode.
99 Citations
19 Claims
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1. An antenna comprising:
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an insulator board; a radiation electrode provided on a first main surface of the insulator board; a magnetic field electrode connected to the radiation electrode; and a feeder portion connected to the magnetic field electrode;
whereinthe radiation electrode is arranged in an area surrounding the magnetic field electrode. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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2. An antenna comprising:
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an insulator board; a radiation electrode provided on a first main surface of the insulator board; a ground electrode arranged on a second main surface of the insulator board so as to oppose the radiation electrode; a magnetic field electrode connected to the radiation electrode; and a feeder portion connected to the magnetic field electrode. - View Dependent Claims (3)
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4. An antenna comprising:
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an insulator board; a radiation electrode provided on a first main surface of an insulator board; a counter electrode arranged on a second main surface of the insulator board so as to oppose the radiation electrode, the counter electrode being coupled with the radiation electrode through a capacitance; a magnetic field electrode connected to the radiation electrode; and a feeder portion connected to the magnetic field electrode. - View Dependent Claims (5, 6, 7, 8)
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Specification