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Low-cost antenna array

An antenna array and antenna technology, applied in the field of low-cost antenna array and manufacturing the antenna array

Inactive Publication Date: 2006-02-15
ANDREW CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these conventional array structures have improved some characteristics of antenna arrays, such as small number of components and light weight, they still need to be improved in terms of electrical performance, manufacturing process cost and overall mechanical structure.

Method used

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  • Low-cost antenna array
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Examples

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Embodiment Construction

[0038] Referring now to FIG. 1, a base station or cell site 10 may include at least one and usually a plurality of antenna arrays 12 of the present invention, the implementation of which is disclosed in detail in FIGS. 2-16. The same reference numerals indicated in these figures refer to the same or similar parts in each figure. Base station antenna array 12 is typically contained within a substantially airtight radome (shown in FIGS. 14-16 ), which is then mounted to base station mast 14 in a conventional manner. As used here, an antenna array is a combination of antenna elements of a size, spacing, and radiation sequence such that the combined electric field of the individual radiator elements produces a maximum strength in a particular direction, while the electric field is extremely strong in other directions. Small. When describing such a combination, the term antenna array may be used interchangeably with array antenna.

[0039]Each of the base station antenna arrays 1...

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PUM

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Abstract

A low-cost antenna array and method of manufacturing the array, in a planar form or in a structurally flexible or curved array structure are shown. The antenna array has a plurality of metallic antenna electrical and radiator elements formed on a foam core layer bonded onto a metallic ground layer. The radiator elements preferably are formed on a thin dielectric carrier layer bonded to the foam core layer. The array can include one or more additional dielectric layers, each with a plurality of parasitic radiator elements formed thereon, mounted on top of the electrical elements. Manufacturing the array preferably includes bonding the layers to one another. The electrical and radiator elements are formed, preferably by etching, before the foam core layer is bonded to the ground layer. The additional dielectric layer and the parasitic radiators then are bonded to the already formed electrical elements on the ground layer.

Description

technical field [0001] The present invention relates to antenna arrays, and more particularly to low cost antenna arrays having substantially planar and curved surfaces, for use in telecommunications, and methods of making the same. Background technique [0002] Antenna arrays are manufactured in various forms and have many different applications within the communications field. A specific application is antenna arrays with high volume and emphasis on low cost, which are used in base stations of mobile communication systems, such as the cellular transmission system in the United States operating at about 800 MHz and the personal communication service (PCS) operating at about 1900 MHz system base stations, and in other wireless and mobile communication applications worldwide. [0003] Base station antenna arrays come in a wide variety of configurations that differ significantly in size, cost, and reliability. The usual basic antenna array typically includes: two or more ind...

Claims

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Application Information

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IPC IPC(8): H01Q21/08H01Q1/24
CPCH01Q1/246H01Q21/08
Inventor 詹姆斯・蒂勒里唐纳德・L.・伦雍
Owner ANDREW CORP