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Antenna structure with characteristic of switching between different radiation patterns and preparation method thereof

A technology of antenna structure and manufacturing method, which is applied to antennas, electrical components, transmission systems, etc., and can solve the problems of large volume and high cost of smart antennas

Active Publication Date: 2013-07-10
IND TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the method for adjusting the antenna directivity of the array antenna structure 100 requires multiple sets of phase adjusters (phase adjuster) 110, power adjuster (power adjuster) 120, power divider (power divider) 130 and digital signal processor (Digital Signal Processor) Processor, DSP) 140, achieve the effect of main beam direction switching by switching the phase and amplitude of the signals fed by each antenna unit, so the whole group of smart antennas is large in size and high in cost

Method used

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  • Antenna structure with characteristic of switching between different radiation patterns and preparation method thereof
  • Antenna structure with characteristic of switching between different radiation patterns and preparation method thereof
  • Antenna structure with characteristic of switching between different radiation patterns and preparation method thereof

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Embodiment Construction

[0052] The embodiment of the present invention can provide an antenna structure with the characteristics of switching between different radiation field shapes. The antenna structure regards an antenna ground plane as a part of the antenna radiator, and uses at least one current dragger to combine A controller is used to control the switching element contained in the current inducing unit to direct or block the radio frequency current on the ground plane to the current inducing unit to control the radio frequency current distribution on the antenna ground plane to form various antenna radiation field shapes.

[0053] Image 6 In the embodiment, an antenna structure with the characteristic of switching different radiation field shapes is disclosed, which is consistent with some disclosed embodiments. reference Image 6 In an example, the antenna structure 600 includes a ground plane 610, N active elements 631-63N, M current inducing units 641-64M, and a controller 620. N and M are b...

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Abstract

An antenna structure comprises a ground plane, at least one active element, at least one current-inducing unit and a controller, wherein the active element is electrically connected with a radio-frequency signal source; the current-inducing unit is electrically connected with the ground plane; the active element and the current-inducing unit are distributed on the ground plane or near the ground plane; and in one detection region of the antenna, the controller enables or disables the current-inducing unit to conduct or block the radio-frequency current on the ground plane in the current-inducing unit and form a plurality of radiation patterns.

Description

Technical field [0001] The invention relates to a structure and a manufacturing method for changing the radiation field shape of an antenna. Background technique [0002] In terms of antenna design, smart antenna technology is an important part of the wireless communication system. It can be divided into multiple input multiple output (MIMO) antenna technology and adaptive antenna system (AAS). Big category. MIMO antenna technology uses multiple sets of wireless transmission paths to increase the coverage of received signals or increase the amount of information transmitted. [0003] The adaptive antenna system technology uses multiple antenna elements to form a set of array antennas, and dynamically adjusts the input power for each antenna element to steer the antenna beam (beam steering) toward the device that wants to transmit information , By increasing the signal to noise ratio (Signal To Noise Ratio, SNR) and reducing co-channel interference to achieve high efficiency trans...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04B1/00H01Q25/00H01Q3/26
Inventor 浦大钧吴俊熠林弘萱
Owner IND TECH RES INST