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Multiband branch radiator antenna element

An antenna element and multi-band technology, applied in antennas, electrical components, resonant antennas, etc., can solve the problems of inability to use flat antenna elements, complex design and manufacture, and large antenna elements

Active Publication Date: 2006-07-12
HONG KONG APPLIED SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of this dual-band mode also complicates the design and manufacture of such components
In addition, such antenna elements are relatively large
Therefore the use of patch antenna elements may not be possible in certain dual-band systems

Method used

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  • Multiband branch radiator antenna element
  • Multiband branch radiator antenna element
  • Multiband branch radiator antenna element

Examples

Experimental program
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Embodiment Construction

[0029] In order to understand the concepts and advantages of embodiments of the present invention, it is useful to discuss various prior art antenna element configurations. Therefore, some details about the antenna configuration of the prior art, such as information about dipole antenna elements, will be provided below.

[0030] As shown in Fig. 1A, a dipole includes a pair of balanced transmission lines, which is widened into a pair of collinear lines (pole 101). Its radiation pattern, radiation resistance and directivity strictly depend on the length (l). The wide acceptable optimal length is a half-wave dipole configuration (l=1 / 2λ) with a circular ring-like basic radiation pattern. This is the result of the sinusoidal current disappearing at the end of the dipole. In other words, the configuration is determined by its physical resonance length l and is limited to a single resonance frequency with a basic radiation pattern. The gain of such a dipole antenna is measured and calc...

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PUM

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Abstract

The present invention discloses a system and method for providing a multi-band antenna element utilizing a plurality of radiating branches interconnected with a feed plate, thereby providing a multi-band antenna element with a single feed. Additionally or alternatively, utilizing the multiple radiating branches of the multiband antenna element of the present invention provides a wideband antenna configuration. Embodiments of the invention employ one or more reflectors to, for example, provide directivity and / or radiation pattern shaping, including utilizing one or more radiating branches of a multiband antenna element as reflectors for an additional one of the multiband antenna element or multiple radiating branches.

Description

Technical field [0001] The present invention generally relates to wireless communication, and in particular, to a multi-band antenna configuration. Background technique [0002] Currently, various antenna elements and antenna array configurations are used in wireless communications. For example, a dipole antenna is one of the most common antenna configurations today. Simplicity makes them relatively cheap and easy to build and configure. In this regard, dipole antennas are likely to be the most widely used form of antenna elements in various mobile stations and base station equipment. [0003] Overall, the dipole antenna element only gives a gain of 2.13dBi. Therefore, many existing wireless system products use a pair of dipoles, so the gain is increased to about 5dBi. For example, the antenna array can be configured such that the pairs of dipole antenna elements in the antenna array are placed on the ground plane to provide a desired level of gain and a radiation pattern with a ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q5/00H01Q5/371H01Q5/48H01Q9/26
CPCH01Q5/0086H01Q5/0058H01Q9/26H01Q5/371H01Q5/48H01Q19/106
Inventor 彼得·C·T·宋罗斯·D·穆
Owner HONG KONG APPLIED SCI & TECH RES INST