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US 7,009,567 B2Granted
Portable radio communication apparatus provided with a part of a housing operating as an antenna
AssigneeMatsushita Electric Industrial Co., Ltd.
InventorsHiroshi Iwai, Atsushi Yamamoto, Kenichi Yamada
Life of this patent
Estimating the term…
Abstract
In a portable radio communication apparatus including a housing, at least one part of the housing is formed as a housing electrical conductor portion by an electrically conductive material. The housing electrical conductor portion is connected with a radio communication circuit of the portable radio communication apparatus so as to operate as at least one part of an unbalanced type antenna of the radio communication circuit.
Claims29
A folding portable radio communication apparatus having an open state and a closed state, said folding portable radio communication apparatus comprising:
- an upper housing and a lower housing;
- and
- a hinge portion;
- wherein said upper and lower housings are foldable through said hinge portion,
- wherein at least one part of said upper housing is formed as a housing electrical conductor portion and is made of an electrically conductive material,
- wherein said hinge portion comprises first and second hinge parts which engage with each other so as to be rotatably slidable,
- wherein said first hinge part is made of an electrically conductive material and is electrically connected with said housing electrical conductor portion,
- wherein said second hinge part is made of an electrically conductive material and is electrically connected with a feeding point of a radio communication circuit provided in said lower housing of said apparatus, and
- wherein said housing electrical conductor portion is electrically coupled with said feeding point of said radio communication circuit through said first and second hinge parts in both of the open state and the closed state of said apparatus.
6 more elements
A folding portable radio communication apparatus having an open state and a closed state, said folding portable radio communication apparatus comprising:
- an upper housing and a lower housing;
- and
- a hinge portion;
- wherein said upper and lower housings are foldable through said hinge portion,
- wherein at least one part of said upper housing is formed as a housing electrical conductor portion and is made of an electrically conductive material,
- wherein said hinge portion comprises first and second hinge parts which engage with each other so as to be rotatably slidable,
- wherein said first hinge part is made of an electrically conductive material and is electrically connected with said housing electrical conductor portion,
- wherein said second hinge part is made of an electrically conductive material and is electrically connected with a feeding point of a radio communication circuit provided in said lower housing of said apparatus,
- wherein a capacitive coupling is conducted through an electrical insulator having a predetermined capacitance in at least one of a location between said housing electrical conductor portion and said first hinge part and a location between said second hinge part and said feeding point of said radio communication circuit, and
- wherein said housing electrical conductor portion is electrically coupled with said feeding point of the radio communication circuit through said first and second hinge parts in both of the open state and the closed state of said apparatus.
7 more elements
A folding portable radio communication apparatus having an open state and a closed state, said folding portable radio communication apparatus comprising:
- an upper housing and a lower housing;
- and
- a hinge portion;
- wherein said upper and lower housings are rotatable through said hinge portion,
- wherein at least one part of said upper housing is formed as a housing electrical conductor portion and is made of an electrically conductive material,
- wherein said hinge portion comprises first and second hinge parts which engage with each other so as to be rotatably slidable,
- wherein said first hinge part is made of an electrically conductive material and is electrically connected with said housing electrical conductor portion,
- wherein said second hinge part is made of an electrically conductive material and is electrically connected with a feeding point of a radio communication circuit provided in said lower housing of said apparatus, and
- wherein said housing electrical conductor portion is electrically coupled with said feeding point of said radio communication circuit through said first and second hinge parts in both of the open state and the closed state of said apparatus.
6 more elements
A folding portable radio communication apparatus having an open state and a closed state, said folding portable radio communication apparatus comprising:
- an upper housing and a lower housing;
- and
- a hinge portion;
- wherein said upper and lower housings are rotatable through said hinge portion,
- wherein at least one part of said upper housing is formed as a housing electrical conductor portion and is made of an electrically conductive material,
- wherein said hinge portion comprises first and second hinge parts which engage with each other so as to be rotatably slidable,
- wherein said first hinge part is made of an electrically conductive material and is electrically connected with said housing electrical conductor portion,
- wherein said second hinge part is made of an electrically conductive material and is electrically connected with a feeding point of a radio communication circuit provided in said lower housing of said apparatus,
- wherein a capacitive coupling is conducted through an electrical insulator having a predetermined capacitance in at least one of a location between said housing electrical conductor portion and said first hinge part and a location between said second hinge part and said feeding point of said radio communication circuit, and
- wherein said housing electrical conductor portion is electrically coupled with said feeding point of said radio communication circuit through said first and second hinge parts in both of the open state and the closed state of said apparatus.
7 more elements
Dependencies are inferred from the claim text.