Portable radio devices and manufacturing method of portable radio devices body
First Claim
1. A portable radio device comprising:
- a body incorporating a transmission/reception circuit for radio communication and having a cylindrical antenna attachment portion that projects outward; and
an antenna device having a first antenna that is attached to the antenna attachment portion and a second antenna that is provided movably and is to be electrically coupled with the first antenna;
wherein the first antenna has first antenna elements that are formed on an outer circumferential surface and electrically connected to the transmission/reception circuit, and is integrally molded with the antenna attachment portion such that the first antenna elements come into close contact with an inner circumferential surface of the antenna attachment portion.
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Accused Products
Abstract
Of two body parts constituting a cellular telephone, a back body part has a body main part and an antenna attachment portion. An antenna for transmitting and receiving radio waves to and from a satellite has a cylindrical excitation antenna and a cylindrical helical antenna. The helical antenna is attached in such a manner that it can be pulled out to establish a state that it does not contact the inner circumferential surface of the excitation antenna. The excitation antenna is integrally molded with the back body part such that of the outer circumferential surface of the excitation antenna an antenna element surface that is formed with antenna elements comes into close contact with the inner circumferential surface of the antenna attachment portion. This structure dispenses with, for example, work of attaching an attaching member to the body, thus simplifying the manufacturing process.
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Citations
13 Claims
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1. A portable radio device comprising:
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a body incorporating a transmission/reception circuit for radio communication and having a cylindrical antenna attachment portion that projects outward; and
an antenna device having a first antenna that is attached to the antenna attachment portion and a second antenna that is provided movably and is to be electrically coupled with the first antenna;
wherein the first antenna has first antenna elements that are formed on an outer circumferential surface and electrically connected to the transmission/reception circuit, and is integrally molded with the antenna attachment portion such that the first antenna elements come into close contact with an inner circumferential surface of the antenna attachment portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. A manufacturing method of a portable radio device body that has a cylindrical antenna attachment portion projecting outward from a body main part and which a cylindrical antenna having antenna elements formed on an outer circumferential surface thereof is attached to an inner circumferential surface of the antenna attachment portion, comprising the steps of:
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positioning the antenna in a die that is formed with a main part cavity having a shape corresponding to the antenna attachment portion such that the antenna elements formed on the outer circumferential surface of the antenna are facing an inner circumferential surface of the antenna cavity; and
forming the body main part and the antenna attachment portion and simultaneously integrally molding them with each other such that the antenna elements of the antenna come into close contact with the inner circumferential surface of the antenna attachment portion by injecting a resin into the main part cavity and the antenna cavity. - View Dependent Claims (13)
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Specification