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Wireless communication device

A technology of wireless communication devices and antennas, which is applied to connection devices, antennas, waveguide devices, etc., and can solve problems such as increased influence and reduced antenna efficiency

Active Publication Date: 2009-03-11
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When reducing the size of the integrated antenna module to achieve cost reduction, the influence of surface waves radiated from the substrate side will increase, resulting in a decrease in the efficiency of the antenna

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0022] figure 1 is a diagram showing the configuration of the wireless communication device 1 according to Embodiment 1; figure 1 (a) is a plan view showing the mounting board 2 provided in the wireless communication device 1; (b) is a cross-sectional view showing the wireless communication device 1; Floor plan of module 4.

[0023] figure 1 (c) is a view of the integrated antenna module 4 viewed from the direction of the antenna plane. exist figure 1 In (a), dimensions a and b of the through-hole 3 of the mounting substrate 2 are shown.

[0024] The wireless communication device 1 includes a mounting substrate 2 . A through-hole 3 having a rectangular cross section is formed in the mounting substrate 2 . The wireless communication device 1 is provided with an integrated antenna module 4 which is mounted on the mounting substrate 2 and covers the through hole 3 . On the surface of the integrated antenna module 4 exposed from the through hole 3, a patch antenna 5 for...

Embodiment approach 2

[0046] Figure 5 It is a figure showing the structure of the wireless communication apparatus 1a of Embodiment 2, Figure 5 (a) is a plan view showing the mounting substrate 2a provided in the wireless communication device 1a; Figure 5 (b) is a sectional view showing the wireless communication device 1a; Figure 5 (c) is a plan view showing the integrated antenna module 4a provided in the wireless communication device 1a.

[0047] For convenience of description, components having the same or similar functions as those described in Embodiment 1 above are assigned the same or similar symbols, and detailed description thereof will be omitted. Embodiment 2 differs from Embodiment 1 in that the annular ground piece 6 a and the opening of the through hole 3 a are circular.

[0048] The wireless communication device 1a includes a mounting substrate 2a. A through-hole 3 a having a circular cross section is formed in the mounting substrate 2 a. The wireless communication device 1...

Embodiment approach 3

[0057] Figure 8 It is a diagram showing a configuration in which a mortar-shaped structure 26 and a dielectric lens 25 are arranged in the wireless communication device 1 according to Embodiment 1, Figure 8 (a) is its floor plan, Figure 8 (b) is its cross-sectional view.

[0058] and figure 2 The horn antenna 9 shown differs in that the Figure 8 In the shown configuration, a mortar-like structure 26 having a lower circular opening 27 and an upper circular opening 28 is disposed on the through hole 3b, and a dielectric lens 25 is disposed on the upper circular opening 28. superior. The depth H of the mortar-like structure 26 is set so that the focal point of the dielectric lens 25 is positioned at the center of the lower circular opening 27 .

[0059] in addition, Figure 8(a) shows an example in which the through-hole 3b is formed with a drill, and the portion corresponding to the short side of the rectangle is formed into a semicircle.

[0060] The diameter of the...

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Abstract

A wireless communication device including an antenna-integrated module which realizes a high-end antenna having an improved antenna efficiency includes a mounting board having a through hole whose cross-sectional shape is rectangular; and an antenna-integrated module mounted on the mounting board so as to cover over the through hole, a patch antenna, which radiates radiation wave, being provided on a surface of the antenna-integrated module, which surface is exposed in the through hole, an annular grounding sheet being provided between the antenna-integrated module and the mounting board so as to surround the patch antenna, and the through hole having a longer side whose length satisfies lambda / 2<=a<=lambda, where lambda is a wavelength of the radiation wave.

Description

technical field [0001] The invention relates to a microwave / millimeter wave wireless communication device with antenna function. Background technique [0002] In recent years, wireless transmission of high-definition video signals has attracted attention, and since large-capacity information needs to be transmitted, attempts have been made to develop a wireless video transmission device using millimeter waves that can secure a wide frequency band. In the millimeter wave band, when an antenna and a high-frequency circuit are separately formed and connected with a connector or the like, power loss at the connection portion increases. In order to reduce the loss of this connection part, an integrated antenna module in which an antenna and a high-frequency circuit are built in a single module has been developed. [0003] Here, as an example of the above-mentioned integrated antenna module, for example, the integrated antenna module disclosed in Patent Document 1 (Japanese Paten...

Claims

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Application Information

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IPC IPC(8): H01L25/00H01L23/12H01Q13/02H01Q23/00H01P5/08
Inventor 山田敦史佐藤启介田中启贵
Owner SHARP KK
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