ANTENNA, AND RADIO-FREQUENCY IDENTIFICATION TAG
First Claim
1. An antenna connected to a circuit portion and configured to effect transmission and reception of information by radio communication, said antenna comprising:
- a driven meander line portion which has a feed section connected to said circuit portion and which is a line conductor formed in a meandering pattern; and
a parasitic meander line portion which does not have a feed section connected to said circuit portion and which is a line conductor formed in a meandering pattern, said parasitic meander line portion being positioned relative to said driven meander line portion, so as to influence an input impedance of said driven meander line portion.
2 Assignments
0 Petitions
Accused Products
Abstract
An antenna connected to a circuit portion and configured to effect transmission and reception of information by radio communication, the antenna including a driven meander line portion which has a feed section connected to the circuit portion and which is a line conductor formed in a meandering pattern, and a parasitic meander line portion which does not have a feed section connected to the circuit portion and which is a line conductor formed in a meandering pattern and positioned relative to the driven meander line portion, so as to influence an input impedance of the driven meander line portion. Also disclosed is a radio-frequency identification tag including the antenna.
13 Citations
23 Claims
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1. An antenna connected to a circuit portion and configured to effect transmission and reception of information by radio communication, said antenna comprising:
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a driven meander line portion which has a feed section connected to said circuit portion and which is a line conductor formed in a meandering pattern; and a parasitic meander line portion which does not have a feed section connected to said circuit portion and which is a line conductor formed in a meandering pattern, said parasitic meander line portion being positioned relative to said driven meander line portion, so as to influence an input impedance of said driven meander line portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23)
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Specification