CN202601836U - Double-frequency omnidirectional antenna - Google Patents
Double-frequency omnidirectional antenna Download PDFInfo
- Publication number
- CN202601836U CN202601836U CN 201220249583 CN201220249583U CN202601836U CN 202601836 U CN202601836 U CN 202601836U CN 201220249583 CN201220249583 CN 201220249583 CN 201220249583 U CN201220249583 U CN 201220249583U CN 202601836 U CN202601836 U CN 202601836U
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- CN
- China
- Prior art keywords
- impedance transformer
- radiating doublet
- electric capacity
- antenna
- cable connector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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Abstract
The utility model relates to a double-frequency omnidirectional antenna. The antenna comprises radiation oscillators with a phase shifter, an impedance transformer and a cable connector, wherein the radiation oscillators pass through an inductance-capacitance (LC) match circuit and the impedance transformer sequentially and are connected with the cable connector. The two radiation oscillators, the phase shifter, the LC match circuit, the coaxial impedance transformer and the cable connector from the double-frequency omnidirectional antenna, the lengths of the two radiation oscillators and the phase shifter are adjusted, the out-of-roundness is low in the working frequency range of the antenna, and the antenna has the advantages of being low in cost. Small in diameter, light in weight, convenient to install, high in anti-interference performance, high in gain, good in consistency, wide in application range and the like.
Description
Technical field
The utility model relates to a kind of antenna, is a kind of double frequency omnibearing antenna specifically.
Background technology
Used omnidirectional antenna generally is to form with two pairs of antennas that are operated in 162MHz and 433MHz respectively on the navigation mark in ship automatic identification system (AIS) communication system at present, or with one pair of omnidirectional antenna that has parasitic oscillator.The shortcoming of this way is that the installation volume of antenna increases, the required power synthesizer, and loss is big, and it is low to gain, and influences each other easily between two pairs of antennas, has reduced the efficient of antenna, and cost is high, causes the wasting of resources.
Summary of the invention
The utility model has overcome in the prior art not enough, and provide a kind of simple in structure, volume is little, in light weight, easy to make, cost is low, loss is low, gain is high, can realize the high-performance double frequency omnibearing antenna that long-haul reliable is transmitted.
The technical scheme that the utility model adopts is: a kind of double frequency omnibearing antenna; Comprise radiating doublet, impedance transformer and the cable connector of being with phase shifter; It is characterized in that: after said radiating doublet connects the LC match circuit; Link to each other with impedance transformer, impedance transformer is through the external pipeline of cable connector again.
Said radiating doublet comprises radiating doublet and following radiating doublet, and phase shifter is connected between radiating doublet and the following radiating doublet and is a linear structure.
Said LC match circuit comprises brass adapter sleeve, nylon rod, enameled wire loop and two electric capacity; Radiating doublet successively through brass adapter sleeve, nylon rod, impedance transformer support and connection on cable connector; Be wound with the enameled wire loop that connects the brass adapter sleeve on the nylon rod, any two places connect the high and low impedance part of impedance transformer respectively on the enameled wire loop through electric capacity.
Said impedance transformer comprises copper rod and copper pipe, and copper rod is coaxial to be arranged in the copper pipe, and a place one electric capacity connects the impedance transformer copper rod on the enameled wire loop, and another place connects the impedance transformer copper pipe through another electric capacity on the enameled wire loop.
Said electric capacity is NP0 electric capacity.
The last radiating doublet of the utility model connects an end of phase shifter; The other end of phase shifter connects radiating doublet down; Make antenna when low-frequency range is worked, be equivalent to a monopole antenna; When high band operation, be equivalent to two sections half-wave dipoles, the communication network of two different frequencies can use advantages such as an antenna and installation website.
The utility model adopts two radiating doublets and a phase shifter, a LC match circuit, a coaxial impedance converter, a cable connector to form the double frequency omnibearing antenna, and through regulating the length of two radiating doublets and phase shifter, the double frequency omnibearing antenna uses under 158-165MHz, 428-438MHz frequency range, and its length is less than 1 meter; Diameter is less than 13 ㎜, and deviation in roundness is less than ± 0.5dBi, and low-frequency range (158-165MHz) E ground roll beam width is 80 degree; Gain is more than or equal to 2.0dBi, and high band (428-438MHz) E ground roll beam width is 40 degree, and gain is more than or equal to 4.5dBi; Deviation in roundness is little in the antenna working frequency range, has simple in structurely, and cost is low; Antenna diameter is little, and is in light weight, and interference resistance easy for installation is strong; It is higher to gain, high conformity, advantage such as applied widely.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: go up radiating doublet 1, phase shifter 2, following radiating doublet 3, brass adapter sleeve 4, nylon rod 5, enameled wire loop 6, the first electric capacity 7, the second electric capacity 8, copper pipe 9, copper rod 10, cable connector 11.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Shown in Figure 1, a kind of double frequency omnibearing antenna comprises radiating doublet 1, phase shifter 2, radiating doublet 3, brass adapter sleeve 4, nylon rod 5, enameled wire loop 6, first electric capacity 7, second electric capacity 8, copper pipe 9, copper rod 10 and cable connector 11 down.Phase shifter 2 is connected between radiating doublet 1 and the following radiating doublet 3 and is a linear structure; Following radiating doublet 3 connects the LC match circuit; The LC match circuit comprises brass adapter sleeve 4, nylon rod 5, enameled wire loop 6 and two electric capacity 7,8; Following radiating doublet 3 lower end support and connection are on brass adapter sleeve 4, and 4 support and connection of brass adapter sleeve are wound with the enameled wire loop 6 that connects brass adapter sleeve 4 on the nylon rod 5 on nylon rod 5; Impedance transformer comprises copper rod 10 and copper pipe 9; Copper rod 10 coaxial being arranged in the copper pipe 9, any two places connect the copper pipe 9 and the copper rod 10 of impedance transformer respectively on the enameled wire loop 6 through first, second electric capacity 7,8, and copper pipe 9 and copper rod 10 are through cable connector 11 external pipelines; First and second electric capacity 7,8 is NP0 electric capacity.
Claims (5)
1. a double frequency omnibearing antenna comprises radiating doublet, impedance transformer and the cable connector of being with phase shifter, it is characterized in that: said radiating doublet is successively through LC match circuit, impedance transformer stube cable connector.
2. a kind of double frequency omnibearing antenna according to claim 1 is characterized in that: said radiating doublet comprises radiating doublet and following radiating doublet, and phase shifter is connected between radiating doublet and the following radiating doublet and is a linear structure.
3. a kind of double frequency omnibearing antenna according to claim 1; It is characterized in that: said LC match circuit comprises brass adapter sleeve, nylon rod, enameled wire loop and two electric capacity; Radiating doublet successively through brass adapter sleeve, nylon rod, impedance transformer support and connection on cable connector; Be wound with the enameled wire loop that connects the brass adapter sleeve on the nylon rod, any two places connect the high and low impedance part of impedance transformer respectively on the enameled wire loop through electric capacity.
4. a kind of double frequency omnibearing antenna according to claim 3; It is characterized in that: said impedance transformer comprises copper rod and copper pipe; Copper rod is coaxial to be arranged in the copper pipe; A place one electric capacity connects the impedance transformer copper rod on the enameled wire loop, and another place connects the impedance transformer copper pipe through another electric capacity on the enameled wire loop.
5. a kind of double frequency omnibearing antenna according to claim 3 is characterized in that: said electric capacity is NP0 electric capacity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249583 CN202601836U (en) | 2012-05-30 | 2012-05-30 | Double-frequency omnidirectional antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220249583 CN202601836U (en) | 2012-05-30 | 2012-05-30 | Double-frequency omnidirectional antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202601836U true CN202601836U (en) | 2012-12-12 |
Family
ID=47319355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220249583 Withdrawn - After Issue CN202601836U (en) | 2012-05-30 | 2012-05-30 | Double-frequency omnidirectional antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202601836U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694239A (en) * | 2012-05-30 | 2012-09-26 | 泰兴市迅达通讯器材有限公司 | Double-frequency omnidirectional antenna |
| CN111668609A (en) * | 2020-07-21 | 2020-09-15 | 西安星网天线技术有限公司 | Foldable portable dual-mode ultra-wideband omnidirectional antenna |
-
2012
- 2012-05-30 CN CN 201220249583 patent/CN202601836U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102694239A (en) * | 2012-05-30 | 2012-09-26 | 泰兴市迅达通讯器材有限公司 | Double-frequency omnidirectional antenna |
| CN102694239B (en) * | 2012-05-30 | 2014-04-16 | 泰兴市迅达通讯器材有限公司 | Double-frequency omnidirectional antenna |
| CN111668609A (en) * | 2020-07-21 | 2020-09-15 | 西安星网天线技术有限公司 | Foldable portable dual-mode ultra-wideband omnidirectional antenna |
| CN111668609B (en) * | 2020-07-21 | 2021-07-20 | 西安星网天线技术有限公司 | Foldable portable dual-mode ultra-wideband omnidirectional antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121212 Effective date of abandoning: 20140416 |
|
| RGAV | Abandon patent right to avoid regrant |