Combined array antenna

Abstract

A combined array antenna comprises a grounding surface, a pair of first radiation conductors, a first transmission section, a first support column, a pair of second radiation conductors and a second support column; the grounding surface has an upper surface and a lower surface, the radiation conductors employ a first and a second array forms and a cross vertical arrangement mode to reduce the antenna module arrangement size, and a feed-in section of severalty radiation conductor is on different surfaces of the grounding surface, thereby simultaneously and effectively isolating an interferencephenomenon between transmission sections, moreover the transmission section of sereralty radiation conductor arranges the feed lines, thereby the two radiation conductors occur 180 degrees phase offset so as to reduce the cross polarization amount of the array antenna and improve the antenna grain.

Description

technical field [0001] The invention relates to a combined array antenna, in particular to an integrated array antenna module in which multiple groups of array antennas have a common ground plane. Background technique [0002] An array antenna is an antenna system composed of many identical single antennas (such as symmetrical antennas) arranged according to certain rules. The radiation pattern of a single antenna is not easy to control, the gain is not high, and other important parameters often cannot meet the requirements of high-standard use. Therefore, In some products that require high transmission quality, it is necessary to use array antennas for improvement. Each component antenna unit of the array antenna has a certain arrangement rule and feeding mode, so as to obtain the required effect. The larger the number of antenna elements of the array antenna, the higher the gain, so the size is relatively large. [0003] In the traditional array antenna technology, the s...

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Problems solved by technology

[0004] In the traditional array antenna design, if a dual-polarized array antenna with two polarizations is to be formed, two design methods are generally included. The first method is, for example, the dual-polarized micro A three-dimensional schematic diagram of a flat-panel array antenna, which is a radiating conductor array composed of mutually perpendicular polarized flat-plate copper components 3 and 5 arranged on the surface of the printed circuit board 1, thus forming two sets of mutually perpendicularly polarized array antenna structures, but this configuration method It will lead to a substantial increase in the size of the antenna to twice the size of the general array antenna, and the structures of the two sets of antennas are not symmetrical to each other, resulting in a large difference in the radiation pattern, and the antennas are prone to interfere with each other

[0005] The second method is, for example, a plan view of a dual-polarized array antenna disclosed in US Patent No. 6,985,123, which utilizes a radiation conductor structure composed of a single set of antenna components 15', and feeds transmission signals 13' through two sets of perpendicular to each other. The same group of antenna radiation conductor structures can excite two sets of array antenna signals perpendicular to each other. However, the design of the feed-in transmission line network in this way is very complicated, which is likely to cause a large signal attenuation and increase the mutual interference of the transmission line signals. Moreover, the antenna is difficult to manufacture and The production cost is high, resulting in a decrease in production yield, and because the signals of the two array antennas are excited on the surface of the radiation conductor of the same group of antennas, the interference between the antennas is extremely obvious

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