Foldable high-gain satellite-borne microstrip array antenna structure
A technology of microstrip array and microstrip antenna, which is applied in antennas, folded antennas, antenna arrays, etc., can solve the problems of difficult film antenna array surface accuracy, difficult to ensure high gain performance of microstrip antenna, etc., and achieve reliable deployment High performance, excellent electrical and mechanical properties, and simple mechanism
Active Publication Date: 2020-12-01
CHINA ELECTRONICS TECH GRP NO 39 RES INST
View PDF7 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, due to the limitations of structure and materials, it is difficult to effectively ensure the surface accuracy of the film antenna array for the current spaceborne microstrip array antenna, and it is also difficult to ensure the high gain performance of the microstrip antenna.
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 Construction
[0044] Embodiments of the present invention are described in detail below, and the embodiments are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.
[0045] The microstrip array antenna in this embodiment adopts a 2×2 array form, and the structure of the microstrip antenna unit is as follows figure 1 shown.
[0046] The microstrip antenna unit adopts multi-layer composite molding structure, the upper and lower skins are made of glass fiber reinforced cloth, and the middle layer is made of polyimide foam bearing frame and aramid paper honeycomb filling structure.
[0047] Such as Figure 4 As shown, the polyimide foam load-bearing frame is approximately a square frame structure, and there are spaces for the hinges to connect the embedded parts at the four corners. The diagonal direction has a cross-reinforced design, and there are through holes on the diagonal reinforcement structure. , used to install ant...
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 provides a foldable high-gain satellite-borne microstrip array antenna structure. The foldable high-gain satellite-borne microstrip array antenna structure comprises a plurality of microstrip antenna units arranged in an array form, the microstrip antenna unit adopts a multi-layer composite molding structure, the upper skin and the lower skin adopt glass fiber reinforced cloth, the middle interlayer adopts a polyimide foam force-bearing frame and aramid paper honeycomb filling structure, and hinge connection embedded parts are fixed at four corners. An antenna radiator is fixed on the outer side of the upper skin, a grounding plate is fixed on the outer side of the lower skin, and cushion blocks are fixed on the antenna radiator and the grounding plate. Each microstrip antenna unit is provided with an X radio frequency connection outlet and a Y radio frequency connection outlet; when the microstrip array antenna is in an unfolded state, the directions of X ports on all the microstrip antenna units are consistent, and the directions of Y ports on all the microstrip antenna units are consistent; the radio frequency connection outlet is connected with a power division network through a radio frequency cable; in the microstrip array antenna, adjacent antenna units are connected through flexible tape spring hinges. The folding volume and load requirements of a micro satellite and Wiener satellite platform can be met.
Description
technical field [0001] The invention relates to the technical field of microstrip array antennas, in particular to a retractable high-gain spaceborne microstrip array antenna structure. Background technique [0002] The narrow frequency band of the microstrip antenna is its inherent shortcoming, and its relative bandwidth is 1% to 6%. Although there are several methods for expanding the frequency band that have been proposed in some literatures, such as using a double-layer microstrip patch structure, this will cause The structure of the antenna is complicated, and the original high-gain performance index is difficult to achieve, and the existence of the air layer makes the antenna itself easily damaged in some complex environments. Therefore, the microstrip antennas are arranged in a specific form to form a multi-antenna array system, and different feeding structures can be used to generate different array patterns, which can achieve the purpose of improving the antenna gai...
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): H01Q1/08H01Q1/38H01Q21/06
CPCH01Q1/38H01Q1/08H01Q21/065
Inventor 雷静樊薇曦胡亮万人民赵泓滨吴利英郭良
Owner CHINA ELECTRONICS TECH GRP NO 39 RES INST