阅读说明：本技术 一种变频天线及信号收发装置 (Frequency conversion antenna and signal receiving and transmitting device ) 是由 刘凤鸣 于 2018-06-08 设计创作，主要内容包括：本发明公开了一种变频天线及信号收发装置,所述变频天线包括：弹性体；密封在所述弹性体内部、呈平面螺旋结构的金属天线；所述金属天线采用低熔点金属；在外力作用下,所述金属天线的中心与外缘在垂直方向上逐渐远离,形成空间立体螺旋结构。本发明通过柔性基材制作柔性天线,可实现柔性天线在竖直方向上的拉伸变形,可实现一维天线与三维天线之间的相互转换,相比较传统的一维天线长度方向上的拉伸,其收发信号频段更广,方向性更强。(the invention discloses a frequency conversion antenna and a signal receiving and transmitting device, wherein the frequency conversion antenna comprises: an elastomer; the metal antenna is sealed in the elastic body and has a planar spiral structure; the metal antenna adopts low-melting-point metal; under the action of external force, the center of the metal antenna is gradually far away from the outer edge in the vertical direction, so that a spatial three-dimensional spiral structure is formed. According to the invention, the flexible antenna is manufactured by the flexible base material, so that the flexible antenna can be stretched and deformed in the vertical direction, and the interconversion between the one-dimensional antenna and the three-dimensional antenna can be realized.)

1. A variable frequency antenna, comprising: an elastomer; the metal antenna is sealed in the elastic body and has a planar spiral structure; the metal antenna adopts low-melting-point metal;

Under the action of external force, the center of the metal antenna is gradually far away from the outer edge in the vertical direction, so that a spatial three-dimensional spiral structure is formed.

2. The variable frequency antenna according to claim 1, further comprising: and the rigid fixing piece is fixed on the elastic body and close to the outer edge of the metal antenna.

3. the variable frequency antenna according to claim 1, wherein the rigid mount is a loop-like structure; the inner side of the rigid fixing piece is provided with at least two fixing reinforcing pieces which are in crossed connection.

4. The variable frequency antenna according to claim 1, wherein the intersection of the fixed stiffeners is opposite the center of the metal antenna;

The cross point of the fixed reinforcing piece is provided with a telescopic shaft perpendicular to the fixed reinforcing piece, and the telescopic shaft provides the external force to enable the metal antenna of the planar spiral structure to form a spatial three-dimensional spiral structure.

5. The variable frequency antenna according to claim 4, wherein the telescopic shaft is a telescopic structure.

6. the variable frequency antenna according to claim 4, wherein the surface of the telescopic shaft has an external thread;

The cross point of the fixed reinforcing part is provided with an internal thread hole matched with the external thread, the telescopic shaft is fixed on the fixed reinforcing part through thread matching, and the deformation degree of the metal antenna is controlled through the number of turns of the screw in.

7. The variable-frequency antenna according to claim 1, wherein the elastomer is made of silicone, polydimethylsiloxane, or polyurethane.

8. The variable frequency antenna according to claim 1, wherein the elastomer is a planar helix corresponding to a planar helix of the metal antenna; the line width of the planar spiral structure of the elastic body is larger than that of the metal antenna, and the elastic body evenly bears the metal antenna.

9. The variable frequency antenna according to claim 1, further comprising: and the conductive connecting line penetrates through the elastic body and is connected with the center of the metal antenna, and is used for connecting a signal source and the metal antenna.

10. The variable-frequency antenna according to claim 1, wherein the metal antenna is a low-melting-point metal which is liquid at normal temperature.

11. A signal transceiving apparatus having the variable frequency antenna according to any one of claims 1 to 10.

Technical Field

The invention belongs to the technical field of wireless signal communication, and particularly relates to a variable frequency antenna and a signal receiving and transmitting device.

Background

An antenna is a transducer that converts a guided wave propagating on a transmission line into an electromagnetic wave propagating in an unbounded medium (usually free space) or vice versa. A component for transmitting or receiving electromagnetic waves in a radio device. Engineering systems such as radio communication, broadcasting, television, radar, navigation, electronic countermeasure, remote sensing, radio astronomy and the like all use electromagnetic waves to transmit information and work by depending on antennas. In addition, in transferring energy with electromagnetic waves, non-signal energy radiation also requires antennas. The antennas are generally reciprocal in that the same pair of antennas can be used as both transmit and receive antennas.

The frequency modulation range of the wireless signal transceiving antenna in the prior art is still low.

Disclosure of Invention

in view of the above, an object of the present invention is to provide a frequency conversion antenna and a signal transceiver, so as to solve the problem of a low frequency modulation range of a wireless signal transceiver antenna in the prior art.

In some demonstrative embodiments, the variable-frequency antenna may include: an elastomer; the metal antenna is sealed in the elastic body and has a planar spiral structure; the metal antenna adopts low-melting-point metal; under the action of external force, the center of the metal antenna is gradually far away from the outer edge in the vertical direction, so that a spatial three-dimensional spiral structure is formed.

In some optional embodiments, the variable-frequency antenna further includes: and the rigid fixing piece is fixed on the elastic body and close to the outer edge of the metal antenna.

In some alternative embodiments, the rigid mount is a loop-like structure; the inner side of the rigid fixing piece is provided with at least two fixing reinforcing pieces which are in crossed connection.

In some optional embodiments, the intersection of the fixed stiffener is opposite the center of the metal antenna; the cross point of the fixed reinforcing piece is provided with a telescopic shaft perpendicular to the fixed reinforcing piece, and the telescopic shaft provides the external force to enable the metal antenna of the planar spiral structure to form a spatial three-dimensional spiral structure.

In some optional embodiments, the telescopic shaft is a telescopic structure.

In some optional embodiments, a surface of the telescopic shaft has an external thread; the cross point of the fixed reinforcing part is provided with an internal thread hole matched with the external thread, the telescopic shaft is fixed on the fixed reinforcing part through thread matching, and the deformation degree of the metal antenna is controlled through the number of turns of the screw in.

In some optional embodiments, the elastomer is made of transparent silica gel, polydimethylsiloxane, or polyurethane.

In some optional embodiments, the elastomer is a planar helix corresponding to a planar helix of the metal antenna; the line width of the planar spiral structure of the elastic body is larger than that of the metal antenna, and the elastic body evenly bears the metal antenna.

In some optional embodiments, the variable-frequency antenna further includes: and the conductive connecting line penetrates through the elastic body and is connected with the center of the metal antenna, and is used for connecting a signal source and the metal antenna.

In some optional embodiments, the metal antenna is a low melting point metal that is liquid at normal temperature.

Another object of the present invention is to provide a signal transceiver.

in some illustrative embodiments, the signal transceiver device is provided with the frequency conversion antenna.

Compared with the prior art, the invention has the following advantages:

according to the invention, the flexible antenna is manufactured by the flexible base material, so that the flexible antenna can be stretched and deformed in the vertical direction, and the interconversion between the one-dimensional antenna and the three-dimensional antenna can be realized.

Drawings

Fig. 1 is a schematic structural diagram of a frequency conversion antenna in a planar state according to an embodiment of the present invention;

Fig. 2 is a schematic structural diagram of a frequency conversion antenna in a planar state according to an embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a frequency conversion antenna in a planar state according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a frequency conversion antenna in a three-dimensional state according to an embodiment of the present invention.

Detailed Description

The following description and the drawings sufficiently illustrate specific embodiments of the invention to enable those skilled in the art to practice them. Other embodiments may incorporate structural, logical, electrical, process, and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The scope of embodiments of the invention encompasses the full ambit of the claims, as well as all available equivalents of the claims. Embodiments of the invention may be referred to herein, individually or collectively, by the term "invention" merely for convenience and without intending to voluntarily limit the scope of this application to any single invention or inventive concept if more than one is in fact disclosed.

The one-dimensional antenna (also called as a microstrip antenna or a narrow-band antenna) can only receive and transmit sine wave signals of a single frequency band, the structure of the one-dimensional antenna is mainly a linear structure, and the three-dimensional antenna (also called as an ultra-wideband antenna) (such as a pot-shaped antenna) can receive and transmit square wave signals of a plurality of frequency bands due to the fact that the three-dimensional antenna is provided with a plurality of resonance points, and the structure of the three-dimensional antenna is mainly a spatial three-.

Referring now to fig. 1, fig. 1 shows a schematic structural diagram of a frequency conversion antenna in an embodiment of the present invention, and as shown in the schematic structural diagram, the present invention discloses a frequency conversion antenna, including: an elastic body 100; a metal antenna 200 sealed inside the elastic body 100 and having a planar spiral structure; the metal antenna 200 may be made of low melting point metal; under the action of external force, the spiral center and the outer edge of the metal antenna 200 are gradually away from each other in the vertical direction to form a spatial three-dimensional spiral structure.

According to the invention, the flexible antenna is manufactured by the flexible base material, so that the flexible antenna can be stretched and deformed in the vertical direction, and the interconversion between the one-dimensional antenna and the three-dimensional antenna can be realized.

The metal antenna 200 in the embodiment of the present invention has a planar spiral structure without applying an external force, and the planar spiral structure may be a uniform regular spiral structure or an irregular spiral structure. The uniform regular spiral structure may be, for example, a circular spiral, a square spiral, and a regular polygonal spiral, and the irregular spiral structure may be, for example, a non-uniform change in the spiral bending/bending section. Through selecting for use metal antenna 200 of helical structure, can make the metal antenna that stretches to be three-dimensional spatial structure possess the directional function of pot-type antenna, promote antenna receiving and dispatching signal's reliability and stability.

The metal antenna in the embodiment of the invention adopts low-melting-point metal which comprises low-melting-point metal simple substance or alloy with the melting point below 300 ℃, the alloy component comprises one or more of gallium, indium, tin, zinc, bismuth, lead, cadmium, mercury, silver, copper, sodium, potassium, magnesium, aluminum, iron, nickel, cobalt, manganese, titanium, vanadium, boron, carbon, silicon and the like, the form of the metal antenna can be metal simple substance or alloy, and the metal antenna can also be conductive nano fluid formed by mixing metal nano particles and a fluid dispersing agent. Specifically, the fluid dispersant is preferably one of ethanol, propylene glycol, glycerin, polyvinylpyrrolidone, polydimethylsiloxane, polyethylene glycol, and polymethyl methacrylate.

Preferably, the low melting point metal includes one or more of mercury, gallium, indium, elemental tin, gallium-indium alloy, gallium-indium-tin alloy, gallium-zinc alloy, gallium-indium-zinc alloy, gallium-tin-zinc alloy, gallium-indium-tin-zinc alloy, gallium-tin-cadmium alloy, gallium-zinc-cadmium alloy, bismuth-indium alloy, bismuth-tin alloy, bismuth-indium-zinc alloy, bismuth-tin-zinc alloy, bismuth-indium-tin-zinc alloy, tin-lead alloy, tin-copper alloy, tin-zinc-copper alloy, tin-silver-copper alloy, bismuth-lead-tin alloy. The low-melting-point metal has excellent conductivity and liquid phase fluidity, so the low-melting-point metal has unique application value in the field of manufacturing novel electronic structures.

Preferably, the metal antenna 200 may use a low melting point metal that is liquid at normal temperature, such as a gallium-indium alloy, which has a specific gallium-indium ratio of 75.5% gallium and 24.5% indium, has a melting point of 15.5 degrees, and is substantially in a liquid form at normal temperature.

The elastic body 100 in the embodiment of the present invention may be a planar structure covering the entire metal antenna 200, or a planar spiral structure corresponding to the planar spiral structure of the metal antenna, the spiral line width of the elastic body 100 should be greater than the spiral line width of the metal antenna 200, and the elastic body 100 can uniformly cover each section of the spiral structure of the metal antenna 200. Compared with the elastic body 100 having a planar structure, the elastic body 100 having a spiral structure can provide the metal antenna 200 with the maximum tensile deformation, so that the tensile deformation of the metal antenna 200 is minimally affected by the tensile restoring force of the elastic body 100.

When the elastic body 100 with the spiral structure is manufactured, the spiral cutter with the corresponding specification can be used for applying pressure on the elastic body 100 with the plane structure, so that the elastic body 100 with the plane structure is changed into a continuous spiral structure from a whole.

In some embodiments, the material of the elastic body 100 may be selected from silicone, polydimethylsiloxane, polyurethane, polylactic acid, etc., and the silicone and the polydimethylsiloxane have good elastic deformation recovery capability and can be released to recover the original size after being stretched. Preferably, in some embodiments, the material of the elastic body 100 may be a heat-curable material such as polyurethane, polylactic acid, etc., and after the antenna is stretched, the antenna maintains a stretched shape by applying curing conditions, so as to ensure the stability of the antenna after deformation. And the material can be restored to the original form under certain conditions, and reversible antenna deformation can be realized.

The frequency conversion antenna in the embodiment of the invention can also meet the requirement of more conveniently and quickly realizing the conversion from one dimension to three dimension of the frequency conversion antenna and maintaining the three-dimensional form after the conversion through the fixed structure and the deformation maintaining structure.

In some embodiments, the variable-frequency antenna in the embodiments of the present invention may further include: a rigid mount 300; the rigid mount 300 is disposed on the elastic body 100 at a position near the outer edge of the spiral structure of the metal antenna 200. The outer ring of the elastic body 100 (the outer edge of the metal antenna 200) can be fixed conveniently through the rigid fixing piece, and the integral deformation of the frequency conversion antenna can be realized by stretching the center of the elastic body 100 (the metal antenna 200). Wherein rigid mount 300 may be any shape or configuration that facilitates mounting.

In some embodiments, the rigid fixing member 300 is a ring-shaped structure, which can achieve uniform fixing of the outer ring of the elastic body 100 (the outer edge of the metal antenna 200). Preferably, one or more fixing reinforcements 400 (for example, reinforcing ribs) may be further disposed on the inner side of the loop-shaped rigid fixing member 300, and both ends of the fixing reinforcements 400 are fixed to the loop-shaped rigid fixing member 300, so as to improve the stable structure of the rigid fixing member 300. When the number of the fixing reinforcements 400 is 2 or more, the fixing reinforcements 400 are cross-connected to each other. In some embodiments, rigid mount 300 and fixation stiffener 400 may be a unitary structure to facilitate installation.

In some embodiments, the variable-frequency antenna in the embodiments of the present invention may further include: a telescopic shaft 500 (telescopic rod) in which the intersection points of a plurality of fixing reinforcements 400 are opposite to the center of the metal antenna 200; the fixed reinforcing member 400 is provided with a telescopic shaft 500 perpendicular to the fixed reinforcing member 400 at the intersection point, and the telescopic shaft 500 provides an external force for stretching the frequency conversion antenna in the vertical direction, so that the metal antenna 200 with the planar spiral structure forms a spatial three-dimensional spiral structure. The telescopic shaft 500 may be a telescopic structure, that is, the telescopic shaft 500 is composed of a plurality of tubes with different calibers, and a clamping structure is arranged between the tubes connected to each other, so as to achieve the telescopic function of the telescopic shaft 500. In some embodiments, rigid mount 300, stationary stiffener 400, and telescoping shaft 500 may be a unitary structure to facilitate installation.

In some embodiments, each tube of the telescopic shaft 500 is in communication with each other in length, and a corresponding frequency band is engraved on the surface of each tube of the telescopic shaft 500 to indicate a specific frequency band of the frequency conversion antenna corresponding to the vertical length of the tube combination. For example, when the telescopic length of the telescopic shaft 500 is 3 tube units, the frequency band carved on the 3 rd tube is the actual signal transceiving frequency band at the moment of the frequency conversion antenna.

In some embodiments, the surface of the telescopic shaft 500 has external threads; the fixed reinforcing member 400 has an internal threaded hole at the intersection thereof, which is engaged with the external thread, and the telescopic shaft 500 is fixed to the fixed reinforcing member by means of thread engagement, and the degree of deformation of the metal antenna is controlled by the number of turns of screwing.

In some embodiments, the surface of the telescopic shaft 500 is also intermittently marked with a corresponding frequency band to indicate the specific frequency band of the frequency conversion antenna at the screwing degree.

In some embodiments, the variable-frequency antenna further includes: and a conductive connection line 600 penetrating through the elastic body 100 and connected with the center of the metal antenna 200 for connecting a signal source and the metal antenna. The conductive connection line 600 may be connected to the metal antenna by penetrating through the elastic body 100 before the operation of the frequency conversion antenna, or may be integrated with the frequency conversion antenna when the preparation of the frequency conversion antenna is completed.

Based on the above embodiments of the frequency conversion antenna, the present invention further provides a signal transceiver with the frequency conversion antenna, so as to satisfy the requirement that the signal transceiver has the advantages of the frequency conversion antenna described in the present invention.

Those of skill would further appreciate that the various illustrative logical blocks, modules, circuits, and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both. To clearly illustrate this interchangeability of hardware and software, various illustrative components, blocks, modules, circuits, and steps have been described above generally in terms of their functionality. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the overall system. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present disclosure.