Antenna arrangement

An antenna and structure technology, applied in the field of semi-planar inverted-F antenna, can solve the problem of limited frequency characteristics of the antenna

Inactive Publication Date: 2011-07-20
SONY ERICSSON MOBILE COMM AB
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0006] However, since the PIFA is limited by the internal space of the mobile communication terminal, resulting in limited antenna frequency characteristics, a general PIFA is designed to maximize the frequency of only one of the required frequency bandwidths

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Embodiment Construction

[0020] The antenna design described in the following description is a "planar" antenna. A "planar" antenna has an elongated shape that generally extends along a plane, ie, the antenna may have three dimensions, but one of which is an order of magnitude smaller than the other two.

[0021] figure 1 A block diagram of an exemplary wireless communication device (10) is shown. The wireless communication device (10) includes a casing (11), a controller (101), a memory (102), a user interface (103), a transceiver (104), a key input unit (105), a display unit (106) and a multi-band Antenna (100). The transceiver (104) connects the wireless communication device (10) to the wireless network using the antenna (100). It should be appreciated that the transceiver (104) may transmit or receive signals according to one or more of any known wireless communication standards known to those skilled in the art. The controller (101) controls the operation of the wireless communication device ...

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Abstract

The present invention relates to a novel antenna arrangement comprising: a ground plane, a feed element, and a radiating element coupled to the feed element, the radiating element being substantially parallel to and vertically displaced from the ground plane by the feed element and a shortening element. The antenna further comprises a conductive portion coupled to said ground plane by means of a switching element, said conductive portion being configured to alter size of said ground plane.

Description

technical field [0001] The present invention relates to antennas, and more particularly to a semi-planar inverted F-antenna (PIFA: Planar Inverted F-Antenna), which includes a switching technology for switching between, for example, GSM 850 and GSM 900 without affecting high-band frequencies. Background technique [0002] Wireless communication devices, such as cellular and other wireless telephones, wireless network (WiLAN) components, GPS receivers, mobile radios, pagers, use multi-band antennas to transmit and receive wireless signals in multiple wireless communication frequency bands. Antennas are therefore a key component of wireless devices, and such antennas should meet the requirements for high signal strength, good reception of weak signals, increased (or narrowed, if required) bandwidth, and high performance in small packages. [0003] Planar inverted-F antennas (PIFAs) have many advantages. They are easy to manufacture, simple in design, and inexpensive to manufa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q1/24H01Q5/00H01Q9/04
CPCH01Q1/48H01Q1/243H01Q9/0442H01Q9/0421H01Q1/24H01Q5/00H01Q9/04
Inventor 亚历山大·阿兹哈里
Owner SONY ERICSSON MOBILE COMM AB
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