| 摘要 |
PROBLEM TO BE SOLVED: To solve the problem, that in order to constitute a portable terminal non-operative space in which a cellular phone is unable to receive radio waves from a base station, a radio wave emitter of small power is connected to an antenna, which is arranged in multiple numbers to match the profile of the portable terminal non-operative space, resulting in the numerous standing antennas, etc., making it undesirable in appearance and cost. SOLUTION: A signal generating circuit 1 is connected to a leaky coaxial cable 4, which is put in a target portable terminal non-operative space 102.
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