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Cross-band frequency-conversion antenna based on intelligent paper folding structure

An origami structure and cross-band technology, applied in the field of frequency reconfigurable antennas, can solve problems such as the influence of external bias circuits and the small frequency tuning range of antenna performance, so as to achieve cross-band frequency conversion, small antenna electrical length, and reduced work efficiency. Effect

Active Publication Date: 2018-08-28
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a cross-band frequency conversion antenna based on an intelligent origami structure in order to solve the problems that the external bias circuit affects the performance of the antenna and the frequency tuning range is small in the traditional frequency reconfigurable antenna structure.

Method used

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  • Cross-band frequency-conversion antenna based on intelligent paper folding structure
  • Cross-band frequency-conversion antenna based on intelligent paper folding structure
  • Cross-band frequency-conversion antenna based on intelligent paper folding structure

Examples

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Embodiment 1

[0028] A cross-band frequency conversion antenna based on the intelligent origami structure of the present invention, the front sectional view of the structure is as figure 1 As shown, (components) includes 4D printed deformable origami base 1, antenna arm 2, coaxial feeder 3, SMA radio frequency coaxial connector 4 and RF signal transmitter;

[0029] The 4D printing deformable origami substrate 1 is a self-locking square-twist folding structure printed by the Stratasys Object 350 printer with VeroWhite material as the panel 6 and TangoBlack material as the crease 5;

[0030] Among them, the 4D printed deformable origami base 1 has a planar size of 195x 195mm in the unfolded state 2 , The thickness is 0.75mm, and its flat unfolded structure is like figure 2 As shown, the 4D printed deformable origami base has a central square size of 17.5x17.5mm 2 , The center of the square is 6x 6mm 2 Square hole. The folded structure is like image 3 Shown.

[0031] The printed 4D printed deformab...

Embodiment 2

[0036] A cross-band frequency conversion antenna based on the intelligent origami structure of the present invention, the front sectional view of the structure is as figure 1 As shown, (components) includes 4D printed deformable origami base 1, antenna arm 2, coaxial feeder 3 and SMA radio frequency coaxial connector 4;

[0037] The 4D printing deformable origami substrate 1 is a self-locking square-twist folding structure printed by the Stratasys Object 350 printer with VeroWhite material as the panel 6 and TangoBlack material as the crease 5;

[0038] The plane size of the 4D printed deformable origami substrate in the unfolded state is 110x 110mm 2 , Thickness is 0.5mm, 4D printing deformable origami base center square size is 20x 20mm 2 , The center of the square is 6x 6mm 2 Square hole, the structure after folding is like image 3 Shown.

[0039] The printed 4D printed deformable origami substrate 1 is taken out, washed and dried.

[0040] Two double-sided conductive copper tapes ...

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Abstract

The present invention relates to a cross-band frequency-conversion antenna based on an intelligent paper folding structure, belonging to the field of frequency reconfigurable antennas. The antenna comprises a substrate, an antenna arms, a coaxial feeder, a radio frequency coaxial connector and a RF signal emitter; the substrate employs a self-locking square-twist folding structure; the middle portion of the substrate is provided with a cross-line hole, the two antenna arms are symmetrically glued and fixed at the upper side plate surface of the substrate, the initiating terminal of each antenna arm is extended outwards from the cross-line hole, each antenna arm is located the panel overlapping position for ducking in a folding state; the initiating terminals of the antenna arms are respectively connected with two output ports of the RF signal emitter through the coaxial feeder via the radio frequency coaxial connector, and output signal phase difference of two ends of the RF signal emitter is 180 degrees. The antenna can be subjected to self unfolding through heating to change working frequency, the influence of frequency modulation on performances of the antenna is little, the frequency tuning amplitude is large, and cross of different wave bands can be achieved.

Description

Technical field [0001] The invention relates to a cross-band frequency conversion antenna based on a smart origami structure, belonging to the field of frequency reconfigurable antennas. Background technique [0002] Frequency reconfigurable antennas are in urgent need in the fields of satellite communications, global positioning, weather radar, and drones. The essence of frequency reconfigurable antenna is to change the working state of the antenna by changing the current distribution of the antenna radiator. This type of antenna can continuously or discretely adjust the working frequency within a certain frequency range while maintaining the characteristics of the pattern, polarization, etc. constant. With the development of wireless communication technology, frequency reconfigurable antennas can effectively reduce the cost and weight of wireless communication systems, achieve miniaturization, and help solve electromagnetic compatibility problems between wireless communication...

Claims

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Application Information

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IPC IPC(8): H01Q1/36H01Q1/50
CPCH01Q1/36H01Q1/50
Inventor 张亚静宋维力王莅辰陈明继方岱宁
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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