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Intelligent antenna beam forming front end based on high speed communication modulator multiplexing

A smart antenna, high-speed communication technology, applied in modulation carrier systems, diversity/multi-antenna systems, digital transmission systems, etc., can solve problems such as redundant links and complex systems, and achieve the effect of avoiding system complexity and avoiding redundant links.

Active Publication Date: 2010-12-22
SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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Problems solved by technology

However, the use of this beamforming method will bring many problems such as redundant links and complex systems.

Method used

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  • Intelligent antenna beam forming front end based on high speed communication modulator multiplexing
  • Intelligent antenna beam forming front end based on high speed communication modulator multiplexing
  • Intelligent antenna beam forming front end based on high speed communication modulator multiplexing

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Embodiment Construction

[0013] The present invention will be further explained below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and not to limit the scope of the present invention. In addition, it should be understood that after reading the teachings of the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims of this application.

[0014] The embodiment of the present invention relates to a smart antenna beamforming front end based on multiplexing of a high-speed communication modulator, including a radio frequency local oscillator, a power amplifier, a baseband circuit, a waveform generation circuit, a digital / analog conversion control circuit, and more than one high-speed vector Modulator and antenna. Among them, the radio frequency local oscillator provides the ca...

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Abstract

The invention relates to an intelligent antenna beam forming front end based on high speed communication modulator multiplexing, which comprises a radio frequency local oscillator, a power amplifier, a baseband circuit, a wave form generating circuit, a digital / analog conversion control circuit, more than one high speed vector modulator and more than one antenna. Carrier oscillating signals provided by the radio frequency local oscillator are amplified by the power amplifier and transmitted to the high speed vector modulator. The digital / analog conversion control circuit simultaneously receives high speed communication digital baseband signals produced by the baseband circuit and intelligent antenna space beam forming data produced by the wave form generating circuit, modulates the digital baseband signals and converts the beam forming data into analog control signals for controlling the high speed vector modulators. Each high speed vector modulator modulates the amplitude and the phase of the carrier oscillating signals according to the received control signals, and transmits the modulated carrier oscillating signals through respective antenna so as to form different antenna beams in the space. The invention avoids the problems of lengthy link, complex system, and the like of the traditional system.

Description

Technical field [0001] The present invention relates to the technical field of smart antenna beamforming, in particular to a smart antenna beamforming front end based on multiplexing of a high-speed communication modulator. Background technique [0002] Smart antennas are a mechanism that makes full use of space resources for signal quality improvement, interference suppression (or cancellation), and adaptive wave speed adjustment. Its initial application mode is to use the antenna gain provided by the antenna array to improve the signal-to-noise ratio; to combat the multipath fading phenomenon of the wireless channel, the antenna array can also be used for spatial diversity to obtain diversity gain; another application method is to use The beamforming technology of signal directionality can use the algorithm with self-adaptation and adjustment function to drive the array antenna to generate a specific beam shape, and aim the main beam at the target signal to enhance the receptio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B7/02H04L27/00
Inventor 李凌云孙晓玮钱蓉侯阳
Owner SHANGHAI INST OF MICROSYSTEM & INFORMATION TECH CHINESE ACAD OF SCI
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