Mobile communication terminal and case cover

Patent metadata

Field	Value
Publication number	US-10403965-B2
Application number	US-201615264317-A
Country	US
Kind code	B2
Filing date	Sep 13, 2016
Priority date	Mar 20, 2014
Publication date	Sep 3, 2019
Grant date	Sep 3, 2019

Abstract

The mobile communication terminal includes a case, a display unit, an antenna element having a feeding point for receiving electric power near an end, and a substrate. A plate-like member is disposed so as to be in close to or in contact with the end where the antenna element of the mobile communication terminal is disposed to be close thereto. The plate-like member may be a case cover. The plate-like member includes a long coupling element which has a length of about λ/2 or more with respect to a communication wavelength λ and stored in the plate-like member. When one end of the case of the mobile communication terminal is placed near the coupling element, the antenna element and the coupling element can be capacitively coupled to each other, so that radiation power in a specific direction is increased, and thus, a directivity gain is improved.

First claim

What is claimed is:

1. A case cover attachable to a mobile communication terminal, the case cover comprising:
a body part that is directly attachable to a case of the mobile communication terminal and includes a side surface and a back surface;
a long coupling element that is able to be capacitively coupled to an antenna element of the mobile communication terminal, wherein the antenna element being disposed at a position in the case, the position being close to one end of the case, the antenna element has a feeding point for receiving electric power, the coupling element has a length of about λ/2 or more with respect to a communication wavelength λ, and the coupling element is placed in parallel with the back surface of the body part; and
an engagement part that is formed on the side surface to engage with the case of the mobile communication terminal, wherein
when the case cover supports the one end of the case of the mobile communication terminal by engaging the engagement part with the one end of the case of the mobile communication terminal, the one end of the case of the mobile communication terminal is placed near the coupling element, so that capacitive coupling between the antenna element and the coupling element is enabled and the back surface of the case cover is disposed so as to be relatively substantially orthogonal to a back cover of the mobile communication terminal,
when the back surface of the case cover covers a back surface of the mobile communication terminal, the coupling element is placed near the back surface of the mobile communication terminal,
the case cover further comprises an antenna part that is mounted to the body part so as to be relatively movable and includes the coupling element,
in a case where the one end of the case of the mobile communication terminal is placed near the coupling element, the antenna part is disposed so as to be relatively substantially orthogonal to the body part, and
the antenna part is mounted to the body part so as to be relatively turnable.

2. A case cover attachable to a mobile communication terminal, the case cover comprising:
a body part that is directly attachable to a case of the mobile communication terminal and includes a side surface and a back surface;
a long coupling element that is able to be capacitively coupled to an antenna element of the mobile communication terminal, wherein the antenna element being disposed at a position in the case, the position being close to one end of the case, the antenna element has a feeding point for receiving electric power, the coupling element has a length of about λ/2 or more with respect to a communication wavelength λ, and the coupling element is placed in parallel with the back surface of the body part; and
an engagement part that is formed on the side surface to engage with the case of the mobile communication terminal, wherein
when the case cover supports the one end of the case of the mobile communication terminal by engaging the engagement part with the one end of the case of the mobile communication terminal, the one end of the case of the mobile communication terminal is placed near the coupling element, so that capacitive coupling between the antenna element and the coupling element is enabled and the back surface of the case cover is disposed so as to be relatively substantially orthogonal to a back cover of the mobile communication terminal,
when the back surface of the case cover covers a back surface of the mobile communication terminal, the coupling element is placed near the back surface of the mobile communication terminal, and
the side surface is recessed to form the engagement part.

Assignees

• Panasonic Ip Man Co Ltd

Inventors

• Aoki Kouta
• Hayakawa Haruo
• Hiranuma Momoko

Classifications

• H04M1/724092

  Interfacing with an external cover providing additional functionalities · CPC title

• H01Q21/24

  Combinations of antenna units polarised in different directions for transmitting or receiving circularly and elliptically polarised waves or waves linearly polarised in any direction {(circularly polarised patch antennas H01Q9/0428; circularly polarised horns H01Q13/0241; cross-polarised horns H01Q13/0258; polarisation converters H01Q15/242; cross-polarised rear feeds H01Q19/136; crossed polarisation dual antenna H01Q25/001)} · CPC title

• H01Q19/28

  using a secondary device in the form of two or more substantially straight conductive elements (log- periodic antennas H01Q11/10; constituting a reflecting surface H01Q19/10) · CPC title

• H01Q19/22

  using a secondary device in the form of a single substantially straight conductive element · CPC title

• H01Q9/30

  with feed to end of elongated active element, e.g. unipole (H01Q9/44 takes precedence) · CPC title