CN111641029A - Portable miniaturized shortwave non-blind area antenna - Google Patents
Portable miniaturized shortwave non-blind area antenna Download PDFInfo
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- CN111641029A CN111641029A CN202010481632.XA CN202010481632A CN111641029A CN 111641029 A CN111641029 A CN 111641029A CN 202010481632 A CN202010481632 A CN 202010481632A CN 111641029 A CN111641029 A CN 111641029A
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- impedance matching
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- 230000005855 radiation Effects 0.000 claims abstract description 70
- 230000008878 coupling Effects 0.000 claims abstract description 41
- 238000010168 coupling process Methods 0.000 claims abstract description 41
- 238000005859 coupling reaction Methods 0.000 claims abstract description 41
- 238000004891 communication Methods 0.000 claims abstract description 22
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 8
- 239000004917 carbon fiber Substances 0.000 claims description 8
- 230000008602 contraction Effects 0.000 claims description 8
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 7
- 238000005452 bending Methods 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 230000008901 benefit Effects 0.000 abstract description 5
- 230000007547 defect Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/1235—Collapsible supports; Means for erecting a rigid antenna
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop
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- Details Of Aerials (AREA)
Abstract
The invention discloses a portable miniaturized short-wave blind-area-free antenna, and relates to the technical field of short-wave antenna communication equipment. The radiation loop and the coupling loop are fixed at the upper end of the impedance matching unit box, the upper ends of the radiation loop and the coupling loop are fixedly connected through the foldable shrinkage support rod, and the impedance matching unit box is fixed on the foldable shrinkage support rod; the foldable telescopic support rods comprise upper and lower two sections of upper and lower support rods capable of being folded in half, the radiation ring comprises four antenna rods, two of the upper antenna rods are connected in the upper support rods, and the other two lower antenna rods are connected in the lower support rods; the coupling loop is composed of two coupling loop antenna rods and is connected in the lower end support rod. The invention has the advantages of high efficiency, low loss, simple installation, portability, miniaturization, no blind area, interference resistance, portability and wide application prospect.
Description
Technical Field
The invention relates to the technical field of short wave antenna communication equipment, in particular to a portable small short wave blind-area-free antenna.
Background
The blind area of short wave communication is the area between the ground wave propagation far limit and the sky wave jump distance, and the prior art has two ways to eliminate the blind area: (1) increasing the propagation distance of the earth waves. The propagation distance of the ground wave has close relation with the physical environment, the working wavelength, the radiation power and the efficiency of the antenna; (2) shortening the landing distance of sky wave reflection. The incident elevation angle of the antenna to the ionized layer is raised, the landing distance can be shortened, when the incident elevation angle is 90 degrees, the landing distance of the sky wave can be 0, and theoretically, no blind area exists. The current commonly used short-wave back-pack radio station is generally 20W, if the power is increased by increasing the ground wave distance, the cost of electromagnetic compatibility, power supply, heat dissipation and the like is relatively high, and relatively speaking, the aim of improving or eliminating the blind area by increasing the ground wave propagation distance is difficult and the cost is high; the elevation angle of the antenna is improved, the antenna is easier to realize technically, and the cost is relatively low.
The antenna of shortwave backpack adopts more to be whip antenna, and whip antenna volume is little, simple structure, and portable is accomodate, but its shortcoming that has communication "blind area". The loop antenna has high elevation angle radiation and can realize non-blind area communication, but the loop antenna has larger volume, complex structure and heavier weight relative to the whip antenna, and is difficult to be applied to a knapsack form, so that in order to obtain better non-blind area communication effect and be used for a knapsack mobile use state, the loop antenna is designed into a portable knapsack type, which provides higher requirements for the structure of the loop antenna, not only needs to meet the specific shape of the loop antenna and meet the requirement of the NVIS antenna that main lobe radiation radiates uniformly at high elevation angle within 60-90 degrees, but also overcomes the defects of large volume and complex structure of the loop antenna. How to explore a new structure and a new form, adopt a new technology, and combine a new material and a new technology to enable the lightweight of the loop antenna is the key for realizing the bearing portability.
At present, a copper pipe is generally adopted for a loop antenna to be directly bent and formed or a plurality of sections of antenna rods are spliced, the loop antenna directly bent by the copper pipe is large in size and not suitable for carrying and using, and the loop antenna spliced by the plurality of sections of antenna rods has the defects of being troublesome to mount, large in weight and the like, and is difficult to apply in knapsack use. In order to solve the problems of large size, low efficiency, communication blind area and the like of the short wave antenna, the design of a novel portable small-sized short wave non-blind area antenna is particularly necessary.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a portable miniaturized short-wave blind-area-free antenna which is simple in structure, reasonable in design, excellent in radiation and conductivity, small in size, light in weight, convenient to carry and easy to popularize and use, and the radiation efficiency is improved, and blind-area-free communication is realized.
In order to achieve the purpose, the invention is realized by the following technical scheme: a portable miniaturized short-wave non-blind-area antenna comprises a radiation ring, a coupling ring, a foldable contraction stay bar and an impedance matching unit box, wherein the radiation ring and the coupling ring are fixed at the upper end of the impedance matching unit box; the foldable telescopic support rods comprise upper and lower two sections of upper and lower support rods capable of being folded in half, the radiation ring comprises four antenna rods, two of the upper antenna rods are connected in the upper support rods, the other two are connected in the lower support rods, the lower antenna rods are connected in the lower support rods, and the upper antenna rods and the lower antenna rods are connected through studs; the coupling loop is composed of two coupling loop antenna rods, and the coupling loop antenna rods are connected in the lower end support rod.
Preferably, a lock catch is arranged between the upper end support rod and the lower end support rod, and the upper end support rod and the lower end support rod are folded and unfolded and are connected in a locking mode through the lock catch.
Preferably, the lower end support rod is provided with a sliding block, the sliding block is compressed by sliding and is automatically clamped after being in place, and the coupling loop antenna rod is bent into the coupling loop.
Preferably, the upper end stay bar is divided into a first section of telescopic bar, a second section of telescopic bar and a third section of telescopic bar, and the antenna rod at the upper end of the radiation ring and the antenna rod at the lower end of the radiation ring are bent into the radiation ring through the three sections of telescopic bars.
Preferably, the upper end of the impedance matching unit box is connected with the radiation ring, the coupling ring and the foldable contraction support rod, the lower end of the impedance matching unit box is provided with a short-wave radio frequency interface and a communication and power interface, the impedance matching unit box is connected with a radio frequency feeder and a power control feeder, and the impedance matching unit box is connected with an external short-wave radio station through the radio frequency feeder and the power control feeder.
Preferably, the radiation ring adopts the carbon fiber radiation ring, the coupling ring adopts the carbon fiber coupling ring, adopts the carbon fiber as the radiating element of loop antenna, and linear soft, collapsible accomodating, portable just lightens weight greatly, alleviates the burden of person carrying.
The invention has the beneficial effects that: the device has the advantages of high efficiency, low loss, simple installation, portability, miniaturization, no blind area, interference resistance and portability, has excellent radiation performance, has higher radiation efficiency than whip antennas, realizes non-blind area communication, can reduce co-site interference with other high-frequency and all V/UHF whip antennas when having omnibearing non-blind area communication, and has wide application prospect.
Drawings
The invention is described in detail below with reference to the drawings and the detailed description;
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of the radiation ring and the coupling ring in a retracted state according to the present invention;
FIG. 3 is an expanded view of the collapsible spreader bar of the present invention;
FIG. 4 is a schematic view of the connection of the upper antenna rod of the radiation ring to the lower antenna rod of the radiation ring according to the present invention;
FIG. 5 is a schematic view of the radiation ring of the present invention in an expanded configuration;
FIG. 6 is an expanded view of the coupling ring of the present invention;
FIG. 7 is a schematic view of the present invention in a state of being used with a back frame;
FIG. 8 is a schematic view of the present invention in use with a tripod.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 8, the following technical solutions are adopted in the present embodiment: a portable miniaturized short-wave non-blind-area antenna comprises a radiation ring 1, a coupling ring 2, a foldable contraction support rod 3 and an impedance matching unit box 4, wherein the radiation ring 1 and the coupling ring 2 are fixed at the upper end of the impedance matching unit box 4, the radius of the radiation ring 1 is larger than that of the coupling ring 2, the upper ends of the radiation ring 1 and the coupling ring 2 are fixedly connected through the foldable contraction support rod 3 with a folding structure, and the impedance matching unit box 4 is fixed on the foldable contraction support rod 3; the foldable telescopic support rod 3 consists of an upper support rod 301 and a lower support rod 302 which are two sections and can be folded in half, the upper support rod 301 is divided into a first telescopic rod 301-1, a second telescopic rod 301-2 and a third telescopic rod 301-3 which are three small telescopic rods, the radiation ring 1 consists of four antenna rods with good elasticity, two of the antenna rods are radiation ring upper end antenna rods 101, the radiation ring upper end antenna rod 101 is connected in the upper support rod 301, the other two are radiation ring lower end antenna rods 102, the radiation ring lower end antenna rod 102 is connected in the lower support rod 302, the radiation ring upper end antenna rod 101 is connected with the radiation ring lower end antenna rod 102 through a stud 103, and the radiation ring upper end antenna rod and the radiation ring lower end antenna rod are contracted through the support rods to be bent into a ring shape; the coupling loop 2 is composed of two coupling loop antenna rods 201 with good elasticity, the coupling loop antenna rods 201 are connected in the lower end stay bar 302, and the coupling loop antenna rods 201 are compressed by the slide block 6 in the lower end stay bar 302 and are bent into a ring shape.
It is worth noting that the impedance matching unit box 4 is of a thin structure, the upper end of the impedance matching unit box 4 is connected with the radiation ring 1, the coupling ring 2 and the foldable shrinkage support rod 3, the impedance matching unit box 4 is fixed on the foldable shrinkage support rod 3, an impedance matching unit circuit is arranged in the impedance matching unit box, two external interfaces for connecting with a radio station are arranged at the lower end of the impedance matching unit box 4, the two external interfaces are respectively a short-wave radio frequency interface and a communication and power interface and are respectively connected with a radio frequency feeder 7 and a power control feeder 8, and the impedance matching unit box 4 is connected with an external short-wave radio station 9 through the radio frequency feeder 7 and the power.
In addition, a lock catch 5 is arranged between the upper end support rod 301 and the lower end support rod 302, and the upper end support rod 301 and the lower end support rod 302 are folded and unfolded and are connected in a locking manner through the lock catch 5; the lower end stay 302 is provided with a sliding block 6 which slides and compresses the coupling loop antenna rod 201 to form a ring shape.
This embodiment radiation ring 1, coupling ring 2 all adopt the carbon fiber as loop antenna's radiating element, and its radiation, electric conductive property are good, and linear soft, collapsible accomodating, portable, and carbon fiber material will be light a lot for the antenna mast, and weight reduction greatly lightens, alleviates the burden of knapsack person.
The installation and use method of the embodiment is as follows:
(1) firstly, the upper end stay bar 301 and the lower end stay bar 302 are folded and unfolded, and are quickly locked by the lock catch 5 (fig. 3), and it should be noted that the locking structure is not limited to the lock catch, and other quick locking modes can be adopted;
(2) then, the upper end antenna rod 101 of the radiation ring clamped in the upper end stay 301 and the lower end antenna rod 102 of the radiation ring clamped in the lower end stay 302 are taken out and connected with the lower end antenna rod 102 of the radiation ring through the stud 103 of the upper end antenna rod 101 of the radiation ring (fig. 4); in the upright state of the four antenna poles, the antennas can be switched by the impedance matching unit box 4 and used as whip antennas;
(3) then, the upper end stay 301 is compressed downwards, and the antenna rod 101 at the upper end of the radiation ring and the antenna rod 102 at the lower end of the radiation ring are bent into a large ring shape (fig. 5) through three small telescopic rods, namely a first telescopic rod 301-1, a second telescopic rod 301-2 and a third telescopic rod 301-3, namely the radiation ring 1;
(4) the sliding block 6 on the lower end support rod 302 is pressed, the sliding block 6 is compressed by sliding downwards, the sliding block 6 can be automatically clamped after being in place, and the coupling loop antenna rod 201 is bent into a small ring shape (shown in figure 6), namely a coupling loop 2;
(5) the device is used by matching an extension rod 10 with a back frame 11 or a tripod 12, an impedance matching unit box 4 is fixed at the upper end of the extension rod 10, and when the extension rod 10 is installed on the back frame 11 (figure 7), the back bearing of the antenna is realized; when the extension rod 10 is fixed on the tripod 12 (fig. 8), the fixed-point erection of the antenna is realized, and the antenna can be applied to different environments; and finally, the antenna is connected with a short-wave radio station 9 through a radio frequency feeder 7 and a power supply control feeder 8, so that the non-blind area communication can be realized.
The radiation element is composed of two semi-double rings with different radiuses fixed at the upper end of the impedance matching unit box, and the support rod with the folding structure is connected with one end of the two semi-rings, so that the mechanical support can be increased to improve stability, the support rod is divided into an upper section and a lower section, and can be folded and stored, the lower end of the impedance matching unit box is connected with the radio frequency feeder and the power supply control feeder, and the support rod is connected with an external short wave radio station through the radio frequency feeder and the power supply control feeder. The impedance matching unit box is used for realizing short-wave antenna tuning, controlling antenna transmitting and receiving, and controlling and communicating with a short-wave radio station, and the functions of the unit box comprise a change-over switch, a resonance network, a power supply part and a main control part, wherein the functional relation firstly establishes a communication control relation with the radio station by utilizing a communication and power supply signal interface, and then executes communication functions such as antenna tuning, channel calling and the like according to the communication requirements of the radio station; the functions are realized through a selector switch and a resonant network; the antenna tuning is realized through different combination forms of the resonant network; the power supply part is used for stabilizing each path of direct current power supply required by the impedance matching unit box; the power supply and the communication signal are transmitted into the power supply part and the main control part through the interface, and finally the control of the antenna for receiving and transmitting the signal is realized.
The specific implementation mode adopts a full-loop antenna framework, the radiation efficiency of the full-loop antenna framework is higher than that of a whip antenna, and the full-loop antenna framework is provided with a standard 50 omega radio frequency feed structure, so that the influence on the ground is small, and the loss is reduced; compared with a semi-loop antenna which is difficult to install and maintain, the semi-loop antenna has the important advantages that the semi-loop antenna can be installed only in less time and less space, the system installation only needs a few minutes, special installation equipment is not needed, the weight is light, the physical profile is low, and the problem of antenna placement is also favorably reduced; the simple folding and unfolding mechanism adopted by the device enables the radiation ring to be simply opened and closed and retracted, so that the requirement of the NVIS antenna on uniform radiation of a main lobe radiation at a high elevation angle within 60-90 degrees is met, and therefore non-blind area communication is achieved.
This embodiment can be below 1.5 at short wave frequency channel voltage standing wave ratio, return loss is little, gain is high, stable in structure, except can providing effectual NVIS communication, it is little to have the windage coefficient, the profile is low, light in weight and conveniently set up and remove performances such as receipts, can accord with the important factor that the individual soldier erects and bear the environment and consider better, it is bulky effectively to have solved traditional technique short wave antenna, inefficiency, communication blind area scheduling problem, high efficiency, low loss, the installation is simple, portable miniaturization, non-blind area and anti-interference technological advantage, possess wide market perspective.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (8)
1. A portable miniaturized short-wave non-blind-area antenna is characterized by comprising a radiation ring (1), a coupling ring (2), a foldable contraction stay bar (3) and an impedance matching unit box (4), wherein the radiation ring (1) and the coupling ring (2) are fixed at the upper end of the impedance matching unit box (4), the radius of the radiation ring (1) is larger than that of the coupling ring (2), the upper ends of the radiation ring (1) and the coupling ring (2) are fixedly connected through the foldable contraction stay bar (3) with a folding structure, and the impedance matching unit box (4) is fixed on the foldable contraction stay bar (3); the foldable telescopic support rod (3) consists of an upper support rod (301) and a lower support rod (302) which are folded in half and comprise an upper section and a lower section, the radiation ring (1) consists of four antenna rods, wherein two antenna rods (101) at the upper end of the radiation ring are used as the two antenna rods at the upper end of the radiation ring, the antenna rods (101) at the upper end of the radiation ring are connected in the upper support rod (301), the other two antenna rods (102) at the lower end of the radiation ring are used as the two antenna rods (102) at the lower end of the radiation ring, the antenna rods (102) at the upper end of the radiation ring are connected in the lower support rod (302), and the antenna rods (101) at the; the coupling loop (2) is composed of two coupling loop antenna rods (201), and the coupling loop antenna rods (201) are connected in the lower end stay bar (302).
2. The portable miniaturized short-wave blind-area-free antenna according to claim 1, wherein a lock catch (5) is arranged between the upper end support rod (301) and the lower end support rod (302), and the upper end support rod (301) and the lower end support rod (302) are folded and unfolded and are connected in a locking manner through the lock catch (5).
3. The portable miniaturized short-wave non-blind area antenna according to claim 1, wherein the lower end brace rod (302) is provided with a sliding block (6), and the sliding block (6) is compressed by sliding to be automatically clamped after being in place, so that the coupling loop antenna rod is bent into the coupling loop (2).
4. The portable miniaturized short-wave non-blind-zone antenna of claim 1, wherein the upper-end supporting rod (301) is divided into three sections of telescopic rods, namely a first section of telescopic rod (301-1), a second section of telescopic rod (301-2) and a third section of telescopic rod (301-3), and the three sections of telescopic rods are used for bending the upper-end antenna rod (101) and the lower-end antenna rod (102) of the radiation ring into the radiation ring (1).
5. A portable miniaturized short wave non-blind area antenna according to claim 1, wherein said upper end antenna rod (101) of the radiation ring and said lower end antenna rod (102) of the radiation ring are in an upright state, and the antenna is switched by the impedance matching unit box (4) to act as a whip antenna.
6. The portable miniaturized short-wave non-blind-area antenna according to claim 1, wherein the impedance matching unit box (4) is of a thin unit box structure, the upper end of the impedance matching unit box is connected with the radiation ring (1), the coupling ring (2) and the foldable shrinkage support rod (3), the impedance matching unit box (4) is fixed on the foldable shrinkage support rod (3), the lower end of the impedance matching unit box (4) is provided with a short-wave radio frequency interface and a communication and power interface, the impedance matching unit box (4) is connected with a radio frequency feeder (7) and a power control feeder (8), and the impedance matching unit box (4) is connected with an external short-wave radio station (9) through the radio frequency feeder (7) and the power control feeder (8).
7. The portable miniaturized short-wave non-blind-area antenna according to claim 1, wherein the radiation ring (1) is a carbon fiber radiation ring, the coupling ring (2) is a carbon fiber coupling ring, and carbon fibers are used as radiation elements of the loop antenna, so that the antenna is linear and flexible and is convenient to fold, store and carry.
8. The portable miniaturized short-wave blind-area-free antenna is characterized in that the impedance matching unit box (4) is matched with a back frame (11) or a tripod (12) through an extension rod (10), and when the extension rod (10) is installed on the back frame (11), the antenna is carried on the back; when the extension rod (10) is fixed on the tripod (12), the fixed-point erection of the antenna is realized.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481632.XA CN111641029A (en) | 2020-05-28 | 2020-05-28 | Portable miniaturized shortwave non-blind area antenna |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010481632.XA CN111641029A (en) | 2020-05-28 | 2020-05-28 | Portable miniaturized shortwave non-blind area antenna |
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| Publication Number | Publication Date |
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| CN111641029A true CN111641029A (en) | 2020-09-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010481632.XA Pending CN111641029A (en) | 2020-05-28 | 2020-05-28 | Portable miniaturized shortwave non-blind area antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117276846A (en) * | 2023-11-02 | 2023-12-22 | 广州博远装备科技有限公司 | Shape memory alloy-based self-adaptive short wave antenna |
-
2020
- 2020-05-28 CN CN202010481632.XA patent/CN111641029A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117276846A (en) * | 2023-11-02 | 2023-12-22 | 广州博远装备科技有限公司 | Shape memory alloy-based self-adaptive short wave antenna |
| CN117276846B (en) * | 2023-11-02 | 2024-03-05 | 广州博远装备科技有限公司 | Shape memory alloy-based self-adaptive short wave antenna |
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