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Low side height antenna

An antenna and channel technology, used in antennas, resonant antennas, antenna components, etc., can solve the problems of shortening, exceeding, and failing to meet the specification requirements of PIFA.

Inactive Publication Date: 2010-08-11
MOLEX INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, interposing a dielectric material between the PIFA and the ground plane can reduce the volume of the PIFA in proportion to the dielectric constant of the dielectric material, but this method will shorten the bandwidth of the PIFA and fail to meet the specification requirements.
Although this can increase (compensate) the bandwidth lost by PIFA by means of a planar exposed antenna, when the exposed antenna is close to the user's body, the SAR value it produces exceeds the current limit (FCC: 1.6 Mw / g; EU: 2.0Mw / g)

Method used

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Embodiment Construction

[0030] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The foregoing and other technical content, features and effects of the present invention will be clearly understood in the following detailed description of two preferred embodiments with accompanying drawings.

[0031] As shown in FIG. 3, it is the first preferred embodiment of the low-side high antenna 1 of the present invention, which includes a radiating element 2 and a ground plane 3. In this embodiment, the low-side high antenna 1 is set in Take a small wireless communication device (such as a mobile phone) as an example. The ground plane 3 is a copper foil formed on one side of an insulating substrate (for example, a printed circuit board) 30, and a feeding portion 31 connected to a signal transmission line (not shown) is provided on the ground plane 3, and The feeding portion 31 is provided on the insulating substrate 30 in an insulated m...

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Abstract

The invention relates to a low side high antenna, comprising: a radiation component and a superposed ground flat which is separated by the ground with the radiation component, a radiation flat and a feedback point set in radiation flat and forming a feedback part on the ground for electric connection with the feedback point; especially forming a slot radiation part on the ground which has a firstend of the feedback flat set on the ground, a second end on the edge of the ground flat and a slot connecting the two ends. The slot radiation part can compensate the lost frequency band caused by lowering down the side height of the radiation components and lower the SAR value of the antenna.

Description

Technical field [0001] The present invention relates to a low-side high antenna, in particular to a low-side high antenna that reduces the height of the side surface of the panel antenna without affecting the antenna bandwidth and can reduce the SAR value of the antenna. Background technique [0002] In wireless communication devices, because the internal antenna (also called intenna) has a low profile (low profile, low profile, low profile for short) and a low SAR (Specific Absorption Ratio, specific absorption rate, refers to the human body absorption Factors such as the measured value of electromagnetic radiation), the internal antenna gradually replaced the exposed antenna used in existing mobile phones. [0003] There are two main types of internal antennas: [0004] (1) Microstrip patch without ground connection7, as shown in Figure 1, is also called half-wave microstrip patch. Although this type of antenna has excellent Antenna efficiency, but because of the need for a large...

Claims

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Application Information

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IPC IPC(8): H01Q1/38H01Q9/04H01Q1/24H01Q13/08
CPCH01Q9/0421H01Q1/243
Inventor 柯贝雷罗威尔
Owner MOLEX INC