HF full-band monopole antenna

A monopole antenna and full-band technology, which is applied in the direction of resonant antenna, antenna grounding device, antenna support/installation device, etc., can solve the problems of low transmission efficiency of short-wave antenna, large standing wave ratio of short-wave antenna, and inconvenient troubleshooting. Achieve the effects of enhancing the omnidirectional emission capability of the ground wave, improving the bandwidth of the antenna, and preventing lightning damage

Inactive Publication Date: 2011-12-14
BEIJING SINO SKY HI TECH
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Problems solved by technology

[0004] 1. Since the existing short-wave antenna corresponds to a signal above 15MHz, the relative wavelength is greater than 0.75, and the vertical field shape will appear larger and larger side lobes, and the field strength in the ground radiation direction will continue to weaken, which is not conducive to ground wave coverage
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  • HF full-band monopole antenna
  • HF full-band monopole antenna
  • HF full-band monopole antenna

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Embodiment Construction

[0034] Please refer to figure 1 , is a structural schematic diagram of an embodiment of the short-wave full-band monopole antenna of the present invention. As shown in the figure, the short-wave full-band monopole antenna of the present invention includes a cage-shaped oscillator 1, a mast 2, and a ground wire 3 with a specified length. The cage-shaped oscillator 1 includes a plurality of oscillator lines 11 and an oscillator ring 12. The dipole wires 11 extend longitudinally parallel to each other, the dipole ring 12 intersects the dipole wires 11 perpendicularly, and the dipole wire 11 and the dipole ring 12 together form a cage-shaped structure. The lower end of the cage vibrator is connected to an insulating support 13 erected on the ground, and the insulating support 13 plays a role of supporting the cage vibrator and insulating it. The mast 3 passes through the cage vibrator 1 from the middle, and the extension lines at both ends of the vibrator line 11 are respectively...

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Abstract

The invention discloses a short-wave full-band monopole antenna, which at least includes a cage dipole, including a plurality of dipole wires extending longitudinally, and a dipole ring perpendicularly intersecting the multiple dipole wires, the multiple dipole wires A cage structure is formed with the vibrator ring, and an insulating support erected on the ground is connected to the lower end of the cage vibrator; a mast is longitudinally arranged inside the cage vibrator and runs through the cage vibrator, so that Both ends of the plurality of vibrator wires are connected to the mast; at least one folded vibrator ground wire with a specified length is connected to the top of the cage vibrator at one end and grounded at the other end. The invention improves the bandwidth of the antenna, realizes the ultra-wide bandwidth full-band operation of 5.9MHz-21.85MHz, enhances the omnidirectional emission capability of the ground wave, can effectively prevent lightning damage, significantly improves the safety, and has a wide application range.

Description

technical field [0001] The invention relates to the field of antennas, in particular to a short-wave full-band monopole antenna. Background technique [0002] As we all know, antennas play an important role in short-wave communications. With the development of short-wave communication technology, antennas are getting more and more attention from people in the industry. The application of high-efficiency and high-stability short-wave antennas in the plateau area with a working frequency range of 5.9MHz-26MHz has attracted more attention. [0003] However, according to on-site inspection and measurement results, there are some shortcomings in the existing short-wave antennas: [0004] 1. Since the existing short-wave antenna corresponds to a signal above 15MHz, the relative wavelength is greater than 0.75 λ, and the vertical field shape will appear larger and larger side lobes, and the field strength in the ground radiation direction will continue to weaken, which is not con...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/48H01Q1/12H01Q1/14H01Q9/30
Inventor 周国材刘巍孟凡涛李斌李杰高伟王洋李传欣吕以哲
Owner BEIJING SINO SKY HI TECH
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