Broadband receiving antenna with active antenna and passive antenna switching function

A technology of passive antennas and active antennas, which is applied to antenna combinations, antennas, and electrical components with different interactions, can solve the problems of increasing the space occupied by equipment, increasing construction costs and maintenance costs, and reducing construction costs. The effect of enhancing dynamic range and enhancing signal gain

Inactive Publication Date: 2015-01-07
CHENGDU JIUHUA YUANTONG TECH DEV
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  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0003] The active receiving antenna has higher gain and less noise than the passive receiving antenna, but in the environment with strong receiving field strength, it does not need a high antenna gain. At this time, it is necessary to use the passive receiving antenna to Ensure the normal operation of the receiving antenna, but adding a passive receiving antenna will inevitably increase the construction cost and maintenance cost, and increase the space occupied by the equipment

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  • Broadband receiving antenna with active antenna and passive antenna switching function
  • Broadband receiving antenna with active antenna and passive antenna switching function

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Embodiment Construction

[0011] The technical solution of the present invention will be further described in detail below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0012] Such as figure 1 As shown, the broadband receiving antenna with switching function of active antenna and passive antenna includes an antenna radiation unit, an integrated circuit, a relay and a transformer, and the output of the antenna radiation unit is respectively connected to an input of an integrated circuit and an input of a relay connection, the antenna radiating unit receives the radio frequency signal in the sky and sends the radio frequency signal to the integrated circuit and the relay, the integrated circuit amplifies the radio frequency signal, the output of the integrated circuit is connected to another input of the relay, and the relay conducts active antenna and relay For passive antenna switching, the output of the r...

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Abstract

The invention discloses a broadband receiving antenna with an active antenna and passive antenna switching function. The broadband receiving antenna comprises an antenna radiating unit, an integrated circuit, a relay and a transformer. The output of the antenna radiating unit is connected with the input of the integrated circuit and one input of the relay. The antenna radiating unit receives radio-frequency signals in the sky and transmits the radio-frequency signals to the integrated circuit and the relay. The integrated circuit amplifies the radio-frequency signals. The output of the integrated circuit is connected with the other input of the relay. The relay conducts switching between an active antenna and a passive antenna. The output of the relay is connected with the input of the transformer. The transformer outputs the radio-frequency signals. According to the broadband receiving antenna, the relay is additionally arranged, so that switching between the active antenna and the passive antenna is achieved through one antenna, and the antenna has common characteristics of the active antenna and the passive antenna simultaneously. The broadband receiving antenna can expand the signal receiving dynamic range, and the size of the antenna is effectively reduced.

Description

technical field [0001] The invention relates to the field of broadband receiving antennas, in particular to a broadband receiving antenna with switching functions between active antennas and passive antennas. Background technique [0002] In the radio monitoring and direction finding technology, the antenna is the first stage to receive space signals, and its performance index directly affects the working index of the monitoring and direction finding system. [0003] The active receiving antenna has higher gain and less noise than the passive receiving antenna, but in the environment with strong receiving field strength, it does not need a high antenna gain. At this time, it is necessary to use the passive receiving antenna to To ensure the normal operation of the receiving antenna, but adding a passive receiving antenna will inevitably increase the construction cost and maintenance cost, and increase the space occupied by the equipment. Contents of the invention [0004]...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/29H01Q23/00
Inventor 宁涛刘立业岑巍何健吴东海
Owner CHENGDU JIUHUA YUANTONG TECH DEV
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