H-face array shortwave logarithm three-dimensional array antenna

A three-dimensional array, logarithmic period antenna technology, applied to antennas, antenna arrays, antenna supports/installation devices, etc., can solve the problems of difficult construction, harsh terrain requirements for broadband screen antennas, complicated operations, etc., to achieve convenient operation, Small footprint and flexible functions

Active Publication Date: 2014-01-29
SHENZHEN DINGYI PRECISION HARDWARE
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Problems solved by technology

[0005] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide an H-plane array shortwave logarithmic three-dimensi

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  • H-face array shortwave logarithm three-dimensional array antenna
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  • H-face array shortwave logarithm three-dimensional array antenna

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Embodiment Construction

[0023] The present invention provides an H-plane array short-wave logarithmic three-dimensional array antenna. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0024] Logarithmic Periodic Antenna (LPDA) is a broadband antenna with extremely good electrical characteristics. It is approximately independent of frequency in terms of input impedance, pattern, gain coefficient and other main electrical parameters, and its electrical characteristics are paired with the operating frequency. The relationship between the number of cycles varies, that is, at any frequency f 0 have the property that all f n =τf 0 Repeat at a frequency of , where f 0 ->τnf 0 Called a cycle (τ is the cycle rate, n=±1, 2, 3,...). I...

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Abstract

The invention discloses an H-face array shortwave logarithm three-dimensional array antenna which comprises an antenna array and a supporting frame used for erecting the antenna array. The antenna array comprises multiple logarithm periodic antenna units which are arranged according to a preset included angle and are in fan-shaped distribution, the supporting frame comprises multiple horizontal trusses which are arranged correspondingly to the logarithm periodic antenna units and are in fan-shaped distribution, and vertical trusses used for fixing the horizontal trusses, the logarithm periodic antenna units are arranged on the corresponding horizontal trusses respectively, and each logarithm periodic antenna unit comprises an assembly line arranged along the corresponding horizontal truss and antenna oscillators sequentially arranged on the assembly line according a sequence from short to long. A system has the advantages of wide band, high power and high gain, and the antenna of the system is simple in structure and convenient to operate and has extremely excellent application prospect.

Description

technical field [0001] The invention relates to the technical field of communication antennas, in particular to an H-plane array shortwave logarithmic three-dimensional array antenna. Background technique [0002] Traditional domestic short-wave large-scale antenna systems are mainly broadband curtain antennas, such as figure 1 and 2 shown. The broadband curtain antenna is an antenna array composed of multi-layer full-wave or half-wave dipoles. The horizontal pattern is controlled by the number of antenna elements in each layer, and the vertical pattern is controlled by the number of layers of element antennas and the separation distance of the lowest layer antenna. height control. Its advantages are wide frequency band range, high power and long propagation distance. However, the disadvantages of broadband curtain antennas are also obvious, mainly including: 1. Large area and harsh terrain requirements; 2. The main body of the antenna is high and the structure volume is...

Claims

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Application Information

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IPC IPC(8): H01Q21/00H01Q1/12H01Q1/36
Inventor 崔立成张少林
Owner SHENZHEN DINGYI PRECISION HARDWARE
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