Transmitter-and-receiver device
First Claim
1. A transmitter-and-receiver device comprisinga circuit board including an earthing conductor and a transmit-and-receive circuit section which are disposed on the board, a loading coil disposed on said circuit board, said loading coil adjusting a phase of a resonance signal by about π
- /2, and an antenna electrically connected with said transmit-and-receive circuit section through said loading coil.
2 Assignments
0 Petitions
Accused Products
Abstract
An earthing conductor is disposed on the reverse of a print board, and a signal process circuit section including a transmit-and-receive circuit is disposed on the right side of the board. A loading coil is mounted on the right side of the board across a print pattern of the signal process circuit section and a print pattern of an antenna. A vertical portion of the antenna projects from the print pattern of the antenna on the print board, and a horizontal portion of the antenna horizontally extends from a top end of the vertical portion in parallel with the print board.
66 Citations
28 Claims
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1. A transmitter-and-receiver device comprising
a circuit board including an earthing conductor and a transmit-and-receive circuit section which are disposed on the board, a loading coil disposed on said circuit board, said loading coil adjusting a phase of a resonance signal by about π - /2, and
an antenna electrically connected with said transmit-and-receive circuit section through said loading coil. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
- /2, and
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16. A transmitter-and-receiver device comprising
a circuit board on which an earthing conductor, an antenna pattern and a transmit-and-receive circuit section are disposed, and an antenna body electrically connected with said antenna pattern on said circuit board to form an antenna with said antenna pattern, one end of said antenna body opposite to a connection side connected with said antenna pattern being an open end, one end of said antenna pattern opposite to a connection side connected with said antenna body being an earth end, and a feeder line being electrically connected with a middle between a connection portion with said antenna body and said earth end of said antenna pattern.
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25. A transmitter device comprising
a circuit board including an earthing conductor and a transmit circuit section which are disposed on the board, a loading coil disposed on said circuit board, said loading coil adjusting a phase of a resonance signal by about π - /2, and
an antenna electrically connected with a transmit-and-receive circuit section through said loading coil.
- /2, and
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26. A transmitter device comprising
a circuit board on which an earthing conductor, an antenna pattern and a transmit circuit section are disposed, and an antenna body electrically connected with said antenna pattern on said circuit board to form an antenna with said antenna pattern, one end of said antenna body opposite to a connection side connected with said antenna pattern being an open end, one end of said antenna pattern opposite to a connection side connected with said antenna body being an earth end, and a feeder line being electrically connected with a middle between a connection portion with said antenna body and said earth end of said antenna pattern.
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27. A receiver device comprising
a circuit board including an earthing conductor and a receive circuit section which are disposed on the board, a loading coil disposed on said circuit board, said loading coil adjusting a phase of a resonance signal by about π - /2, and
an antenna electrically connected with a transmit-and-receive circuit section through said loading coil.
- /2, and
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28. A receiver device comprising
a circuit board on which an earthing conductor, an antenna pattern and a receive circuit section are disposed, and an antenna body electrically connected with said antenna pattern on said circuit board to form an antenna with said antenna pattern, one end of said antenna body opposite to a connection side connected with said antenna pattern being an open end, one end of said antenna pattern opposite to a connection side connected with said antenna body being an earth end, and a feeder line being electrically connected with a middle between a connection portion with said antenna body and said earth end of said antenna pattern.
Specification