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Dual-band Transceiver Common Rod Antenna System for High Frequency Marine Radar

A rod antenna, transceiver sharing technology, applied in the field of dual-frequency orthogonal loop/monopole transceiver common rod antenna, can solve problems such as trouble, achieve the effect of reducing cost, reducing environmental requirements, and increasing flexibility

Active Publication Date: 2019-02-26
武汉海兰瑞海海洋科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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  • Dual-band Transceiver Common Rod Antenna System for High Frequency Marine Radar
  • Dual-band Transceiver Common Rod Antenna System for High Frequency Marine Radar
  • Dual-band Transceiver Common Rod Antenna System for High Frequency Marine Radar

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Embodiment Construction

[0097] The specific embodiment of the invention will be further described below in conjunction with the accompanying drawings.

[0098] 1. Regarding the dual-frequency monopole shared by the receiving and receiving antennas on the same pole as the orthogonal loop receiving antenna:

[0099] according to figure 1 , the dual-frequency transceiver common monopole is formed by successively connecting an upper antenna body STX, a wave trap XBQ, a waterproof box FSH, a fixed ring assembly GDQ, a lower antenna body XTX, a base DZ, and a base JZ. Among them, the upper antenna body STX is a general two-section fiberglass whip antenna; the lower antenna body XTX is composed of two alloy aluminum tubes. In order to prevent the erosion of the outside world (such as wind and rain, salt spray), the alloy aluminum tube is wrapped with glass fiber reinforced plastic. The base DZ is composed of upper and lower parts, the upper part is a hollow insulating polycarbonate seat, the top end is ins...

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Abstract

The present invention discloses a dual-band transceiver co-pole antenna system for a high-frequency marine radar. According to the system, two horizontal orthogonal loop antennas which can receive radar echo signals in double frequencies and a vertical monopole which can transmit and receive a radar signal alternately in double frequencies are combined on a support pole, when the system is used for target direction determination (DF), two orthogonal loops are used to receive the inherent nature characteristics of an echo signal to obtain the ideal directional graph of a receiving antenna, and the troublesome field measurement of the antenna directional pattern is not needed, and the detection performance is greatly improved by using a radar with two working frequencies at the same time. A part of the monopole is formed by the antenna support pole, the rigidity is strong, and thus the antenna system is fixed on a concrete base without a rope.

Description

technical field [0001] The invention relates to the technical field of high-frequency ground wave radar, in particular to a dual-frequency orthogonal loop / monopole transceiver common-rod antenna used for high-frequency ocean radar under dual-frequency working state. Background technique [0002] High frequency ground wave radars have been used 50 years ago. In order to increase the detection distance, this kind of radar generally uses a lower operating frequency of a few megahertz to more than a dozen megahertz; in order to improve the accuracy of detecting the target azimuth, a phased array antenna is usually used, and the antenna array length is generally several hundred meters or even several km. All shore-based high-frequency radars must be erected on the seashore, and it is very difficult to find a site suitable for erecting such a huge antenna array on the seashore, coupled with high maintenance costs, thus limiting the wide application of this radar. Therefore, how ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/50H01Q1/12H01Q1/42
Inventor 文必洋李子言吴世才周浩田应伟
Owner 武汉海兰瑞海海洋科技有限公司
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