Antenna for non-contact IC card gate facility
First Claim
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1. An antenna mechanism for a non-contact IC card system for communication with a non-contact IC card passing a gate, said antenna mechanism comprising:
- an antenna; and
a conductive shielding body located on an outer side of a gate to eliminate a communication area outside the gate by shielding electromagnetic waves from said antenna, wherein said conductive shielding body comprises a box covering back and side surfaces of said antenna.
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Abstract
An antenna mechanism for a noncontacting IC card system for communication with a noncontacting IC card passing a gate, the antenna mechanism including an antenna; and a conductive shielding body located on an outer side of the gate to eliminate a communication area outside the gate by shielding electromagnetic waves from the antenna.
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Citations
8 Claims
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1. An antenna mechanism for a non-contact IC card system for communication with a non-contact IC card passing a gate, said antenna mechanism comprising:
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an antenna; and a conductive shielding body located on an outer side of a gate to eliminate a communication area outside the gate by shielding electromagnetic waves from said antenna, wherein said conductive shielding body comprises a box covering back and side surfaces of said antenna.
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2. An antenna mechanism for a non-contact IC card system for communication with a non-contact IC card passing a gate, said antenna mechanism comprising:
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an antenna including at least a receiving antenna; a conductive shielding body located on an outer side of a gate to eliminate a communication area outside the gate by shielding electromagnetic waves from said antenna; and ground means for connecting said conductive shielding body to a ground having the same electric potential as said receiving antenna.
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3. An antenna mechanism for a non-contact IC card system for communication with a non-contact IC card passing a gate, said antenna mechanism comprising:
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an antenna for communicating with a non-contact IC card passing a gate; a conductive shielding body located on an outer side of the gate to eliminate a communication area outside the gate by shielding electromagnetic waves from said antenna; and an insulating antenna mounting support on which said antenna is mounted. - View Dependent Claims (4, 5, 6, 7, 8)
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Specification