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Medium-frequency simulated RoF (radio over fiber) type phase control active integrated antenna

An intermediate frequency and antenna unit technology, applied in the field of intermediate frequency analog RoF type phase-controlled active integrated antennas, can solve problems such as increased cost and increased DC power consumption, achieve convenient networking, compensate for changes in antenna radiation directions, and reduce losses Effect

Inactive Publication Date: 2012-11-07
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

We know that if the output power of an RF transmitter is doubled while maintaining linearity, its cost will increase by 0.8 to 1 times, and its DC power consumption will increase by 1 to 1.2 times

Method used

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  • Medium-frequency simulated RoF (radio over fiber) type phase control active integrated antenna
  • Medium-frequency simulated RoF (radio over fiber) type phase control active integrated antenna
  • Medium-frequency simulated RoF (radio over fiber) type phase control active integrated antenna

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Embodiment Construction

[0028] The present invention will be further explained below in conjunction with the accompanying drawings.

[0029] Such as figure 1 As shown, an intermediate frequency analog RoF phase-controlled active integrated antenna array of the present invention includes an analog optical module 1, an intermediate frequency transceiver module 2, a radio frequency transceiver module 3 and an antenna unit 4; the analog optical module connected to the near-end machine 1 is connected to several radio frequency transceiver modules 3 through the intermediate frequency transceiver module 2, and each radio frequency transceiver module 3 is connected to an antenna unit 4. The power supply supplies power to the entire intermediate frequency analog ROF phase-controlled active integrated antenna, and the analog optical module 1 is connected to the analog optical module of the near-end device through an optical fiber.

[0030] The role of the analog optical module 1 is photoelectric conversion. T...

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Abstract

The invention discloses a medium-frequency simulated RoF (radio over fiber) type phase control active integrated antenna, which comprises a simulated light module, a medium-frequency transceiver module, radio transceiver modules and antenna units, wherein the simulated light module connected with a near-end machine is connected with the radio transceiver modules through the medium-frequency transceiver module; and each radio transceiver module is connected with one antenna unit. Different from the conventional array antenna, the medium-frequency simulated RoF type phase control active integrated antenna has the characteristics that each antenna unit in the active integrated antenna array is directly connected with one complete radio transceiver module, and a signal of each unit is subjected to power distribution / combination on the medium frequency, passes through the medium-frequency transceiver module and is connected with the light module and finally converted into a light signal through the light module for long-distance low-loss transmission; and the phase of the radio transceiver module behind each antenna unit is controllable, so that the wave beam of the whole array can be scanned in the perpendicular direction.

Description

technical field [0001] The invention relates to an active antenna, in particular to an intermediate frequency analog RoF phase-controlled active integrated antenna. Background technique [0002] Antennas are one of the key components of various wireless communication systems. The main technical indicators to measure their pros and cons are: impedance bandwidth, beam width, sidelobe level, gain and efficiency, etc. The conductor loss, dielectric loss of the antenna radiating unit, the insertion loss of the feeding network and the loss of the feeder will greatly reduce the efficiency of the entire system, resulting in a considerable proportion of the transmitter power being dissipated by the antenna and the feeder, and seriously affecting the receiving sensitivity. Therefore, high efficiency and intelligence have become the research goals of the next generation of wireless communication antennas. [0003] A traditional cellular mobile communication base station is mainly comp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q23/00H01Q3/30
Inventor 洪伟李林盛陈鹏陈继新蒯振起陈喆
Owner SOUTHEAST UNIV
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