Portable transceiver antenna
AssigneeSharp Kabushiki Kaisha
InventorHiroyuki Takebe
Life of this patent
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Abstract
It is an object to provide a portable wireless communication apparatus antenna, which is slidable relative to a casing and completely retractable in the casing and which has the same wideband characteristic when it is retracted as when it is extended. The antenna comprises a first antenna element slidable relative to the casing and a second antenna element fixedly disposed in the casing, wherein the lower end part of the first antenna element when it is retracted and the upper end part of the second antenna element are arranged to be adjacent to each other, thereby coupling the capacitance to form an antenna system as a unit.
Claims8
A portable wireless communication apparatus antenna comprising:
- a casing for housing a wireless communication apparatus portion;
- a first antenna element which can be extended and retracted by sliding movement relative to said casing and can be connected to said wireless communication apparatus portion both when extended and when retracted;
- and
- a second antenna element fixedly provided in said casing and disposed adjacent to said first antenna element in a non-contact condition when said first antenna element is retracted.
A portable wireless communication apparatus antenna comprising:
- a casing for housing a wireless communication apparatus portion;
- a first antenna element which can be extended and retracted by sliding movement relative to said casing and can be connected to said wireless communication apparatus portion both when extended and when retracted;
- a frequency conversion means fixedly provided in said casing and electrically connected to said first antenna element when said first antenna element is retracted;
- and
- a second antenna element fixedly provided in said casing and disposed adjacent to said frequency conversion means in a non-contact condition.
Dependencies are inferred from the claim text.