Antenna for mobile radio communication
一种移动无线、天线的技术,应用在天线、单独通电的天线阵列、谐振天线等方向,能够解决天线总长度变长、结构复杂、妨碍基地台小型化和低成本化等问题,达到小型结构、特性一致的效果
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
no. 1 Embodiment
[0050] Fig. 1(a) is a perspective view of a first embodiment of an antenna for mobile radio communication according to the present invention, and Fig. 1(b) is a sectional view taken along line A-A of Fig. 1(a).
[0051] As shown in FIG. 1, the coaxial feeder 1 is composed of an outer conductor 1a and an inner conductor 1b arranged in a concentric circle with a dielectric sandwiched between them. The inner conductor 1b extends upward by about 1 / 4 wavelength from the upper end 1c of the outer conductor 1a. And formed. The antenna element 3 is constituted by the extended inner conductor 1b. On the outside of the coaxial feeder 1 , a cylindrical metal tube 2 made of brass having a wavelength of 1 / 4 is arranged with one end connected to the upper end 1 c of the outer conductor 1 a. At the open end of the metal pipe 2, a female thread 2b is formed on a part of the inner periphery thereof by tapping. An insulating packing 4 made of a fluororesin (for example, polytetrafluoroethylen...
no. 2 Embodiment
[0064] image 3 It is a side view of the second embodiment of the mobile wireless communication antenna of the present invention.
[0065] Such as image 3 As shown, the second dipole antenna 8 is connected to the bottom of the first dipole antenna 7 , and the third dipole antenna 9 is connected to the bottom of the second dipole antenna 8 . This constitutes a straight array antenna.
[0066] exist image 3 Here, since the first dipole antenna 7 has the same structure as that of the above-mentioned first embodiment, its description will be omitted. The second and third dipole antennas 8 and 9 are configured as follows. That is, at a predetermined position of the outer conductor of the coaxial feeder 10, a feed point is formed by providing a circular slit 10x having a width of 3 mm. Outside the outer conductor of the coaxial feeder 10, a pair of 1 / 4 wavelength brass cylindrical metal tubes 11 are arranged on both sides of the annular slit 10x. At this time, the opposite e...
no. 3 Embodiment
[0076] Fig. 6(a) is a cross-sectional view of a third embodiment of the antenna for mobile radio communication according to the present invention, and Fig. 6(b) is a longitudinal sectional view thereof. As shown in FIG. 6 , the coaxial feeder 15 is composed of an outer conductor and an inner conductor concentrically arranged with a dielectric therebetween, and the inner conductor is formed to extend upward by about 1 / 4 wavelength from the upper end 15a of the outer conductor. An internal conductor formed by extending this constitutes the antenna element 16 . On the outside of the coaxial feeder 15, a metal tube 18 made of brass having a wavelength of about 1 / 4 is arranged in a state where one end 17a is connected to the upper end 15a of the outer conductor. The other end 18b of the metal pipe 18 is supported by inserting a gasket 16a made of fluororesin (for example, polytetrafluoroethylene) between the inner wall and the coaxial feeder 15 at the open end 18b of the metal pipe...
PUM
![No PUM](https://static-eureka-patsnap-com.libproxy1.nus.edu.sg/ssr/23.2.0/_nuxt/noPUMSmall.5c5f49c7.png)
Abstract
Description
Claims
Application Information
![application no application](https://static-eureka-patsnap-com.libproxy1.nus.edu.sg/ssr/23.2.0/_nuxt/application.06fe782c.png)
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap