Ultra-wide-band horn antenna
A horn antenna and ultra-wideband technology, applied in antennas, waveguide horns, electrical components, etc., can solve the problems of imperfect design of the impedance matching part of the back-feed cavity, inability to effectively suppress backward electromagnetic wave radiation, and reduce standing wave horn antennas. , to achieve the effect of improving the impedance matching problem, improving the standing wave coefficient and increasing the gain
A horn antenna and ultra-wideband technology, applied in antennas, waveguide horns, electrical components, etc., can solve the problems of imperfect design of the impedance matching part of the back-feed cavity, inability to effectively suppress backward electromagnetic wave radiation, and reduce standing wave horn antennas. , to achieve the effect of improving the impedance matching problem, improving the standing wave coefficient and increasing the gain
CN104993243AActive Publication Date: 2015-10-21成都恩驰微波科技有限公司
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[0034] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.
[0035] An ultra-wideband horn antenna, comprising: a mode-converted feed cavity part 2, a coaxial line excitation part 1 embedded in the mode-converted feed cavity part, and a double-ridged horn part 3 closely connected to the mode-converted feed cavity part 2 ,
[0036]The mode-conversion rear feed cavity part includes: a rear feed cavity cavity 24, a short circuit board 21 at the bottom of the rear feed cavity cavity, a cross protrusion 211 ...
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Abstract
The invention provides an ultra-wide-band horn antenna comprising a mode conversion feedback cavity part, a coaxial line excitation part, and a double-ridged horn part. The mode conversion feedback cavity part includes a feedback cavity, a short-circuit board, a cross bump, a wedge, a slope, an upper ridge, and a lower ridge. Through a metal sleeve, the short-circuit board, the slope, the wedge, a horn narrow side wall and other structures, the antenna has low voltage standing wave ratio and good radiation pattern. In the whole working frequency band of the antenna, the standing wave of the antenna is effectively reduced, and the gain of the antenna is improved. The horn narrow side wall is composed of a position-adjustable metal gate, so that the horn antenna has good low-frequency characteristic, the high-frequency radiation pattern is not deteriorated, and satisfactory impedance matching and radiation characteristics are obtained in the wide band from 0.8GHZ to 20GHZ. The ultra-wide-band horn antenna has the advantages of large power capacity, wide frequency band, high gain, and good directivity.
Description
technical field [0001] The invention relates to a novel ultra-wideband horn antenna with improved standing wave ratio and high-frequency radiation characteristics, which can be applied to electromagnetic compatibility detection, microwave testing, radar communication systems and the like. Background technique [0002] UWB antenna technology is a research hotspot at home and abroad. It originated in the field of military radar earlier, and has proved its excellence in advanced military technologies such as radar detection, anti-stealth technology, and electronic countermeasures. In recent years, ultra-wideband technology has been gradually introduced into the civilian field. Ultra-wideband radars in military and civilian fields and ultra-wideband antennas for communication systems have attracted much attention. A large number of applications have been obtained in the field of transient electromagnetic fields. However, the existing broadband horn antennas do not use adjustab...
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Patent Timeline
21 Oct 2015
Publication
CN104993243A
- IPC
- H01Q13/02; H01Q3/00; H01Q3/22
- Inventors
- 王超; 李恩