Mobile low frequency transmitting antenna

Abstract

The invention relates to the technical field of antenna equipment and provides a mobile low frequency transmitting antenna which comprises an antenna body in an inverted cone shape. The antenna body comprises a plurality of top wires and a plurality of lead wires. The four top wires are sequentially connected in an end-to-end way to construct the four sides of the top surface of the antenna body.The four lead wires respectively extend downward from the four corners of the top surface and converge to the bottom point to construct the bottom corners of the antenna body. The antenna body of themobile low frequency transmitting antenna is arranged in an inverted cone shape, which is equivalent to increasing the length of the antenna and can effectively reduce the capacitive reactance of theantenna to reduce the antenna voltage and increase the bearing power of the antenna. The conventional tower antenna of several hundred meters can be reduced to several tens of meters and can be more flexible and can be deployed in field positions according to requirements. Although the antenna efficiency is low and the radiation range is limited, the antenna can be used as a supplement to the fixed station and can also make up for the blind area of the fixed station.

Description

technical field [0001] The invention relates to the technical field of antenna equipment, in particular to a mobile low-frequency transmitting antenna. Background technique [0002] Long-wave timing is the use of long-wave (low frequency) for time and frequency transfer and calibration. It is a timing method with stronger coverage than short-wave and higher calibration accuracy. The BPL long-wave timing system undertakes the tasks of time reference maintenance and long-wave timing broadcasting. The center frequency of broadcasting pulse signals is 100kHz, the pulse group repetition period is 60ms, the peak effective power of the transmitter reaches 2MW, and the timing coverage radius reaches 1000km to 2000km. [0003] The long-wave timing system uses high-power fixed broadcasting stations to broadcast timing signals, and basically achieves full coverage in the form of joint coverage of multiple stations in sub-regions. However, there are inevitably a small number of small-s...

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Problems solved by technology

[0005] In view of the above-mentioned technical defects and application requirements, this application proposes a mobile low-frequency transmitting antenna to solve the problem of a small number of small-scale coverage blind spots in the existing long-wave timing system

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