CN201781067U

CN201781067U - Normal gap type panel antenna

Info

Publication number: CN201781067U
Application number: CN2010201079732U
Authority: CN
Inventors: 周娜; 翁勤
Original assignee: JIANGSU HEXIA TECHNOLOGY INVESTMENT Co Ltd
Current assignee: JIANGSU HEXIA TECHNOLOGY INVESTMENT Co Ltd
Priority date: 2010-01-27
Filing date: 2010-01-27
Publication date: 2011-03-30
Anticipated expiration: 2020-01-27

Abstract

The utility model relates to a satellite receiving antenna. A novel panel antenna comprises five layers, wherein all layers are tightly combined, antenna protection layers are arranged at the outer sides of two sides, the middle is sequentially provided with a receiving antenna layer, an inducing dielectric layer and a grounding conductor layer, the receiving antenna layer is an etching aluminum foil layer, antenna arrays formed by a plurality of regularly ranged gaps are arranged on an aluminum foil plate, every two gaps form one group, a plurality of groups of gaps are arranged from the center of the aluminum foil plate to the outer ring according to a leftwards rotation structure, and each gap is a circular polarized wave unit radiator. The panel antenna of the utility model has the characteristics of simple structure, low manufacture cost and the like.

Description

A kind of to line clearance type plate aerial

Technical field:

The utility model is a kind of satellite earth antenna, and particularly a kind of receive frequency that is used for is that 12GHz, wavelength are the plate aerial of 2.5cm.

Background technology:

Existing satellite earth antenna, majority are reflective parabolic antennas, just are commonly called as the antenna of " pot ", and it is once a kind of or secondary reflection formula antenna, and antenna surface only plays reflex, and signal collection is reflexed to tuner.This antenna shortcoming be that structure is not compact: tuner separates with reflecting plate, the inconvenience of regulate; Its volume is big in addition, windage is big, is installed in outdoor damage easily.

Plate type antenna abroad also appearred, its internal structure as shown in Figure 1, mainly contain gap radiation layer, conducting shell, waveguide layer formation, this class antenna tuner and antenna can be made of one, good integrity, in light weight, windage is little, but because the higher and manufacturing process complexity of cost, and be not suitable for the distinctive condition of acceptance of China, so the market reaction indifference is not popularized.

The utility model content:

The purpose of this utility model is the shortcoming that overcomes the described reflective parabolic antenna of background technology and original plate type antenna, invent a kind of at China's condition of acceptance, the frequency that particularly can high-quality receives the satellites transmits such as No. 9, culminant star of China's emission is that 12GHz, wavelength are the flat plate type satellite antenna of the signal of 2.5cm, takes into account simultaneously to reach the purpose that reduces manufacturing cost and simplify technology.

This novel flat-plate antenna is of five storeys, and each layer combined closely, and the two sides outside is the antenna protection layer, and the centre is the reception antenna layer successively, lure dielectric layer and grounding conductor layer.Its reception antenna layer is one deck etching aluminium foil layer, the antenna array that the slit formation of many marshallings is arranged on the aluminium foil plate, one group in twos in these slits, many groups of slits are pressed left-handed structural arrangement from aluminium foil plate center to the outer ring, and each slit all is the radiator of the unit of circularly polarised wave.

Described antenna protection layer is called radome again, adopts corrosion-resistant medium to make, and plays anti-oxidation, the ultraviolet influence to the antenna internal circuit of decay, prevents the erosion of sleet, preferably uses made such as ABS or PP.The described dielectric layer that lures adopts the manufacturing of EVA expanded material, and grounding conductor layer is a layer of metal aluminium foil plate, has both played reflection and anti-back radiation effects to antenna stack, is again the part of feeder line, forms microstrip transmission line.

Plate aerial of the present utility model, simple in structure, manufacturing process is uncomplicated, and the receiving antenna array of left-handed clearance type structure, and receive frequency is that 12GHz, wavelength are that the signal effect of 2.5cm is better.

Description of drawings:

Fig. 1, the structure chart of original plate type antenna.

Fig. 2, the utility model flat plate antenna structure figure.

Fig. 3, the reception antenna layer plane figure of the utility model plate aerial.

Embodiment:

In conjunction with Fig. 2, Fig. 3 the concrete structure of the utility model to linear slit crack plate aerial is described: be 5 layers of structure, two outer surfaces are antenna protection layers 1, and the second layer is that reception antenna layer 2, the three, the 4th layer are to lure dielectric layer 3 and grounding conductor layer 4 successively.Protective layer 1 adopts ABS or PP material, lures dielectric layer 3 to adopt the EVA expanded material, and grounding conductor layer 4 is layer of metal aluminium foil plates.

Reception antenna layer 2 is one deck etching aluminium foil layers, corrode the slit 21 of many marshallings above, one group in twos in described slit, do not intersect and be herringbone, many groups of slits 21 form an antenna array toward peripheral by left-handed structural arrangement from the center of antenna stack 2, and each slit 21 all is the radiator of the unit of circularly polarised wave.The line-spacing in concrete slit 21 and row distance, the integral multiple of the half wavelength of being separated by, the quantity in this slit 21 requires decision by the gain of plate aerial, and gain requires high more, and quantity is many more.

More than to a kind ofly being described in detail that the utility model embodiment is provided to line clearance type plate aerial; for one of ordinary skill in the art; thought according to the utility model embodiment; part in specific embodiments and applications all can change; in sum; this description should not be construed as restriction of the present utility model, and all any changes of being made according to the utility model design philosophy are all within protection range of the present utility model.

Claims

1. one kind to line clearance type plate aerial, it is characterized in that combining closely by 5 layers forming, and the outside, two sides is antenna protection layer (1), and the centre is reception antenna layer (2) successively, lure dielectric layer (3) and grounding conductor layer (3).

2. by the described plate aerial of claim 1, it is characterized in that described reception antenna layer (2) is one deck etching aluminium foil layer, the antenna array that slit (21) formation of many marshallings is arranged on the aluminium foil plate, one group in twos in these slits (21), many groups of slits from aluminium foil plate center to the outer ring by left-handed structural arrangement.

3. described to line clearance type plate aerial by claim 2, it is characterized in that described slit is the radiator of the unit of circularly polarised wave.

4. by claim 1 or 2 or 3 described, it is characterized in that described antenna protection layer (1) is by ABS or PP made to line clearance type plate aerial; The described dielectric layer (3) that lures is made by the EVA expanded material; Grounding conductor layer (4) is a layer of metal aluminium foil plate.