Butterfly oscillator array antenna
An array antenna and butterfly technology, applied in the field of butterfly vibrator array antennas, can solve the problems of limiting the domestic market share of array antennas, small power capacity, and low efficiency, and achieve the effects of low cost, high gain, and wide frequency bandwidth
Inactive Publication Date: 2010-08-11
浙江胜百信息科技股份有限公司
View PDF4 Cites 2 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, microstrip antennas also have some problems that need to be solved urgently: narrow frequency band, large loss, small power capacity, low efficiency, etc.
The frequency bands of the array antennas they produce and sell are all between 5.15 and 5.85GHz. At present, the highest gain of the 5.8GHz array antennas sold in China is 23dBi, and their bandwidth, directivity and radiation efficiency are still relatively large compared with foreign countries. The gap has become the main factor limiting the domestic market share of Wi-Fi / WiMAX communication system array antennas
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0017] Butterfly dipole array antenna:
[0018] The microstrip substrate has a thickness of 1.2 mm and a dielectric constant of 3.2. The radiation unit is butterfly-shaped, and the distance between adjacent radiation units is half of the working wavelength. The angle between the impedance network transformation units of the first-stage array is 120 degrees, and the width thereof is 1.4 mm. The impedance network transformation unit of the second-stage array adopts three-branch matching, and the widths are 3.2mm, 2.6mm, and 1.2mm respectively. The impedance network conversion unit of the radiation layer adopts four-branch matching, and the widths are 2.7mm, 3.3mm, 1.8mm, and 1.5mm. The thickness of the radiation layer is 0.08mm. The feed point adopts coaxial line feed, and the characteristic impedance is 50Ω. The butterfly dipole array antenna uses 24 radiating elements, and the size of the butterfly dipole array antenna is 160mm×75mm. The R3767CH network analyzer was used ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a butterfly oscillator array antenna comprising a micro-strip base plate, an impedance transformer network unit, a radiating unit, a feeding point and a radiating layer, wherein the radiating unit is in the shape of a butterfly; a first-stage array is formed by connecting three radiating units through the impedance transformer network unit; a second-stage array is formed by connecting four first-stage arrays through the impedance transformer network unit; the radiating layer is formed by connecting two second-stage arrays through the impedance transformer network unit;a central point of the impedance transformer network unit is used as the feeding point; and the radiating layer is attached to one side of the micro-strip base plate. The invention has the advantagesof wide frequency band, high gain, low loss and cost, good radiation characteristics, simple structure and easy manufacture and meets the requirements of a Wi-Fi / WiMAX (Wireless Fidelity / Worldwide Interoperability for Microwave Access) communication network.
Description
technical field [0001] The invention relates to antennas, in particular to a butterfly dipole array antenna. Background technique [0002] Due to the advantages of low structural profile, small size, light weight, low cost, easy microwave integration and polarization diversity, and reasonable formation of conformal antennas of various shapes, microstrip antennas have become the latest in the field of antenna research in the past ten years. It is a novel and fashionable topic. And it has been widely used in the most popular Wi-Fi / WiMAX communication network. But microstrip antennas also have some problems that need to be solved urgently: narrow frequency band, large loss, small power capacity, low efficiency and so on. A microstrip array antenna composed of microstrip patch elements is usually used to obtain greater gain or achieve specific directivity. [0003] Array antennas can realize complex functions that cannot be realized by a single antenna, have greater flexibilit...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H01Q21/00H01Q1/38
Inventor 梁林高李九生赵晓丽钟小强
Owner 浙江胜百信息科技股份有限公司