CN209963244U - Receiving and transmitting antenna - Google Patents
Receiving and transmitting antenna Download PDFInfo
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- CN209963244U CN209963244U CN201921230740.9U CN201921230740U CN209963244U CN 209963244 U CN209963244 U CN 209963244U CN 201921230740 U CN201921230740 U CN 201921230740U CN 209963244 U CN209963244 U CN 209963244U
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Abstract
The utility model discloses a receiving and transmitting antenna, through the length to the antenna element, the coiling mode, the number of turns of matching coil, the adjustment of access mode to and add matching resistance etc. when guaranteeing the antenna performance, realize high low frequency signal's cover, frequency range reaches 3 ~ 88MHz, and antenna structure is simple, and the cost of manufacture is low, easily production, using widely.
Description
Technical Field
The utility model relates to the field of communication technology, especially, relate to a receive transmitting antenna.
Background
At present, common matching coils on the market have low frequencies of 1-30 MHz and high frequencies of 30-100MHz, in order to realize wider frequency band coverage, the receiving of high and low frequency signals is generally realized through two pairs of antennas, the low frequency matching coils are switched when the low frequency signals are processed, the high frequency coils are switched when the high frequency signals are processed, namely, the antennas need to be switched in the actual use process, and the antenna design has the following problems undoubtedly:
firstly, a processing neutral period exists in a switching time interval, and signals cannot be received and transmitted; secondly, interference exists between high and low frequencies, so that the performance of the antenna is poor; in addition, because two pairs of antennas need to be implanted and free switching between the two pairs of antennas needs to be realized, the antenna structure is complex and the manufacturing cost is relatively high.
SUMMERY OF THE UTILITY MODEL
The utility model provides a receiving and transmitting antenna, the main technical problem who solves is: how to realize the transceiving of high and low frequency signals through a pair of antennas.
In order to solve the above technical problem, the utility model provides a receiving and transmitting antenna, the signal receiving and transmitting frequency range of receiving and transmitting antenna is 3 MHz-88 MHz, including antenna cavity, matching coil, first antenna oscillator, second antenna oscillator and matching resistance; the matching coil comprises a magnetic ring and a red and yellow enameled wire which is wound on the magnetic ring in a double-line mode, and the number of winding turns of the red and yellow enameled wire is 9; the matching coil is arranged in the antenna cavity, a yellow wire at one end of a red-yellow enameled wire and a red wire at the other end of the red-yellow enameled wire are wound and connected with each other and then are grounded, and the yellow wire at the other end of the red-yellow enameled wire is connected with one end of the matching resistor in series through the first antenna oscillator; the red wire at one end of the red-yellow enameled wire is connected with the other end of the matching resistor in series through the second antenna oscillator; the red wire at one end of the red-yellow enameled wire is also connected with a core wire of the antenna connector; the lengths of the first antenna oscillator and the second antenna oscillator are 4000 mm.
Optionally, the magnetic ring is a nickel-zinc magnetic ring, the outer diameter of the magnetic ring is 21mm, the inner diameter of the magnetic ring is 10mm, and the thickness of the magnetic ring is 8 mm.
Optionally, the wire diameter of the red and yellow enameled wire is 0.6 mm.
Optionally, the first antenna element and the second antenna element are made of multiple strands of copper core wires with wire diameters of 1.5 mm.
The utility model has the advantages that:
the utility model provides a receiving and transmitting antenna, through the length to the antenna element, the coiling mode, the number of turns of matching coil, the adjustment of access mode to and add matching resistance etc. when guaranteeing antenna performance, realize high low frequency signal's cover, frequency range reaches 3 ~ 88MHz, and antenna structure is simple, and the cost of manufacture is low, easily production, using widely.
Drawings
Fig. 1 is a schematic structural diagram of a receiving and transmitting antenna according to a first embodiment of the present invention;
fig. 2 is a schematic connection diagram of a matching coil according to a first embodiment of the present invention;
fig. 3 is a schematic connection diagram of an antenna element according to a first embodiment of the present invention;
fig. 4 is a schematic connection diagram of an antenna cavity connection diagram according to a first embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings by the following detailed description. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The first embodiment is as follows:
in order to achieve the transceiving coverage of high and low frequency signals as much as possible and reduce the manufacturing difficulty and the manufacturing cost at the same time, the present embodiment provides a receiving and transmitting antenna, please refer to fig. 1 to 4, the signal transceiving frequency range of the receiving and transmitting antenna is 3MHz to 88MHz, and the receiving and transmitting antenna mainly includes an antenna cavity 1, a matching coil 2, a first antenna oscillator 3, a second antenna oscillator 4 and a matching resistor 5; the matching coil 2 comprises a magnetic ring 21 and a red and yellow enameled wire 22 which is double-line and wound on the magnetic ring 21, wherein the winding number of the red and yellow enameled wire 22 is 9; the matching coil 2 is arranged in the antenna cavity 1, a yellow wire at one end of a red-yellow enameled wire 22 is wound and connected with a red wire at the other end of the red-yellow enameled wire and then is grounded, and the yellow wire at the other end of the red-yellow enameled wire 22 is connected with one end of a matching resistor 5 in series through a first antenna oscillator 3; the red wire at one end of the red-yellow enameled wire 22 is connected with the other end of the matching resistor 5 in series through the second antenna oscillator 4; the red line at one end of the red-yellow enameled wire 22 is also connected with the core line of the antenna connector 6; the lengths of the first antenna element 3 and the second antenna element 4 are 4000 mm.
The impedance of the broadband antenna is generally not 50 ohms, which causes the transmission standing wave to be too large, and affects the transmission efficiency of the antenna, and the impedance of the antenna is matched to 50 ohms, or to 50 ohms as much as possible, by the matching resistor 5 in the present embodiment.
The matching coil 2 is installed in the antenna cavity 1, and external signals are prevented from interfering with the matching coil through the antenna cavity 1. In addition, the antenna cavity 1 may also be used for fixation of the antenna.
In other embodiments of the present invention, the magnetic ring 21 is a nickel-zinc magnetic ring, the outer diameter of the magnetic ring is 21mm, the inner diameter is 10mm, and the thickness is 8 mm.
In other embodiments of the present invention, the wire diameter of the red/yellow enameled wire 22 is 0.6 mm.
The utility model discloses an in other embodiments, first antenna element 3 all adopts the stranded copper core line that the line footpath is 1.5mm with second antenna element 4, makes it electrically conductive nature good, and signal insertion loss is little, is favorable to the transmission of signal, simultaneously, the erection of the antenna of being convenient for again, expansion etc.. It will be appreciated that the antenna elements are used to direct and amplify the electromagnetic signals, making the electromagnetic signals received by the antenna stronger.
When electromagnetic signals need to be transmitted, the antenna effectively converts high-frequency current in a circuit or guided waves on a feed transmission line into electromagnetic waves in a certain polarization space and transmits the electromagnetic waves in a specified direction; when receiving electromagnetic signals, the electromagnetic waves with certain polarization from a specific direction in space are effectively converted into high-frequency current in a circuit or guided waves on a transmission line, and the received signals are processed.
The receiving and transmitting antenna provided by the embodiment comprises an antenna cavity 1, a matching coil 2, a first antenna element 3, a second antenna element 4 and a matching resistor 5; the matching coil 2 comprises a magnetic ring 21 and a red and yellow enameled wire 22 which is double-line and wound on the magnetic ring 21, wherein the winding number of the red and yellow enameled wire 22 is 9; the matching coil 2 is arranged in the antenna cavity 1, a yellow wire at one end of a red-yellow enameled wire 22 is wound and connected with a red wire at the other end of the red-yellow enameled wire and then is grounded, and the yellow wire at the other end of the red-yellow enameled wire 22 is connected with one end of a matching resistor 5 in series through a first antenna oscillator 3; the red wire at one end of the red-yellow enameled wire 22 is connected with the other end of the matching resistor 5 in series through the second antenna oscillator 4; the red line at one end of the red-yellow enameled wire 22 is also connected with the core line of the antenna connector 6; the lengths of the first antenna element 3 and the second antenna element 4 are 4000 mm. Through the length to the antenna element, the coiling mode, the number of turns, the access mode of matching coil to and add matching resistance etc. when guaranteeing antenna performance, realize the cover of high low frequency signal, frequency range reaches 3 ~ 88MHz, and antenna structure is simple, and the cost of manufacture is low, easily production, use widely.
The foregoing is a more detailed description of the present invention that is presented in conjunction with specific embodiments, and it is not to be understood that the specific embodiments of the present invention are limited to these descriptions. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.
Claims (4)
1. A receiving and transmitting antenna is characterized in that the signal receiving and transmitting frequency range of the receiving and transmitting antenna is 3 MHz-88 MHz, and the receiving and transmitting antenna comprises an antenna cavity, a matching coil, a first antenna oscillator, a second antenna oscillator and a matching resistor; the matching coil comprises a magnetic ring and a red and yellow enameled wire which is wound on the magnetic ring in a double-line mode, and the number of winding turns of the red and yellow enameled wire is 9; the matching coil is arranged in the antenna cavity, a yellow wire at one end of a red-yellow enameled wire and a red wire at the other end of the red-yellow enameled wire are wound and connected with each other and then are grounded, and the yellow wire at the other end of the red-yellow enameled wire is connected with one end of the matching resistor in series through the first antenna oscillator; the red wire at one end of the red-yellow enameled wire is connected with the other end of the matching resistor in series through the second antenna oscillator; the red wire at one end of the red-yellow enameled wire is also connected with a core wire of the antenna connector; the lengths of the first antenna oscillator and the second antenna oscillator are 4000 mm.
2. The receiving and transmitting antenna as claimed in claim 1, wherein the magnetic loop is a nickel-zinc magnetic loop, the magnetic loop has an outer diameter of 21mm, an inner diameter of 10mm, and a thickness of 8 mm.
3. The receiving and transmitting antenna according to claim 1, wherein the wire diameter of the red-yellow enameled wire is 0.6 mm.
4. The receiving and transmitting antenna according to claim 1, wherein the first antenna element and the second antenna element are formed by using a multi-strand copper core wire with a wire diameter of 1.5 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921230740.9U CN209963244U (en) | 2019-07-31 | 2019-07-31 | Receiving and transmitting antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921230740.9U CN209963244U (en) | 2019-07-31 | 2019-07-31 | Receiving and transmitting antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209963244U true CN209963244U (en) | 2020-01-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921230740.9U Active CN209963244U (en) | 2019-07-31 | 2019-07-31 | Receiving and transmitting antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209963244U (en) |
-
2019
- 2019-07-31 CN CN201921230740.9U patent/CN209963244U/en active Active
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