CN2134718Y - Rod antenna for mid-feed - Google Patents
Rod antenna for mid-feed Download PDFInfo
- Publication number
- CN2134718Y CN2134718Y CN 92216802 CN92216802U CN2134718Y CN 2134718 Y CN2134718 Y CN 2134718Y CN 92216802 CN92216802 CN 92216802 CN 92216802 U CN92216802 U CN 92216802U CN 2134718 Y CN2134718 Y CN 2134718Y
- Authority
- CN
- China
- Prior art keywords
- oscillator
- antenna
- coil
- dipole
- core conductor
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a rod antenna for mid-feed, which comprises a fixing frame and an antenna dipole. The antenna dipole is composed of an upper dipole and a lower dipole; the upper dipole is a metal good conductor, and the lower dipole is composed of a core conductor and a metal circular pipe wall which is insulated with the core conductor; a loading coil is connected between the upper and the lower dipoles; the bottom of the lower dipole is connected with a base coil. The utility model has the advantages good wind-resistant performance, good work performance, convenient installation, convenient assembly and disassembly and light weight; the influence of the surrounding environment is little.
Description
The utility model belongs to a kind of mast antenna, particularly a kind of middle feedback mast antenna.
Wireless tranceiver existing and peculiar to vessel and the matching used antenna of alarm, be to set up and form as antenna oscillator with soft metal wire, its service behaviour is subjected to ectocine bigger, geometric position as wind and rain weather antenna oscillator and feeder line arbitrarily changes, the capital influences the standing-wave ratio of antenna, and antenna set up also cumbersome.
The purpose of this utility model provides a kind of middle feedback mast antenna, and wind resistance is good, is subjected to surrounding environment influence little, has good working performance, and easy accessibility, and is in light weight.
The purpose of this utility model is achieved in that it comprises fixed mount and antenna oscillator, its technical scheme main points are: antenna oscillator has last oscillator and following oscillator, last oscillator is the metal good conductor, following oscillator is made up of the round metal tube wall of core conductor and insulation with it, connect loading coil between two oscillators, the bottom of following oscillator connects the pedestal coil.
The core conductor of said down oscillator is connected by thickness two parts and forms, and constitutes the coaxial transmission line of different impedances with the round metal tube wall.
Said pedestal coil is by the shielding conductor coiled, and its heart yearn connects the core conductor of oscillator down, and metal sheath connects the round metal tube wall of oscillator down.
The lower end of said loading coil is threaded with the core conductor of following oscillator.
The utility model has the advantages that: wind resistance is good, is subjected to surrounding environment influence little, has good working performance, be convenient to set up, and easy accessibility, in light weight.
Below in conjunction with accompanying drawing the utility model embodiment is described further.
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is oscillator of the present utility model and coil connecting structure schematic diagram.
See Fig. 1-2, concrete structure of the present utility model is as follows: pedestal coil 4 is by the single-core shielding line coiling that adds insulated tube, and its heart yearn 17 connects the core conductor 15 of oscillator 5 down, and metal sheath 18 connects the pipe wall 16 of oscillator 5 down.The function of pedestal coil 4: the one, feed, the 2nd, blocking-up is the antenna current of oscillator 5 down, and it is not flow on the feeder line crust, when exempting feeder line transformation geometry position, influences the input impedance and the resonance point of antenna.Pedestal coil 4 outer cover insulating shields 3, it is made by the high-frequency insulation material, its function: the one, protection pedestal coil 4, two supports integrated antenna.4 times termination feeder lines of pedestal coil connector assembly 2, connector assembly 2 grafting feeder line plugs 1.The core conductor 15 of following oscillator 5 is formed by the connection of diameter thickness two parts body of rod, and core conductor 15 is fixed in the pipe wall 16 by insulated support.Insulating shield 3 sockets of pipe wall 16 lower ends and pedestal coil 4 are fixed with screw.Pipe wall 16 is the part of antenna radiator, and thickness two parts of pipe wall 16 and core conductor 15 are formed the transmission line of 50 Ω and 125 Ω respectively, and it guarantees that feeder line energy and the integrated antenna of 50 Ω carry out good coupling.Loading coil 9 places in the insulation cover 10, and there is a thread connection 8 loading coil 9 lower ends, and it is screwedly mounted on down in the screwed hole 6 of core conductor 15 upper ends of oscillator 5, and loading coil 9 upper ends connect the last oscillator 11 of metal good conductor.The function of loading coil 9 is to adjust the resonance point and the bandwidth of antenna, under the situation that last oscillator 11 is fixed, can change the resonance point of antenna significantly.Under the situation that loading coil 9 is fixed, oscillator 11 length in the change can change the antenna resonance point among a small circle.There is insulating sleeve 12 last oscillator 11 outsides, and the insulation cover 10 of it and loading coil is connected as one; Insulation cover 10 is threaded in down in the insulation coupling head 7 of oscillator 5.Fixed mount 13 is supported and fixed on antenna on the body of rod 14.
Claims (6)
1, a kind of middle feedback mast antenna, comprise fixed mount and antenna oscillator, it is characterized in that: antenna oscillator has last oscillator and following oscillator, last oscillator is the metal good conductor, following oscillator is made up of the round metal tube wall of core conductor and insulation with it, connect loading coil between two oscillators, the bottom of following oscillator connects the pedestal coil.
2, antenna according to claim 1 is characterized in that: the core conductor of following oscillator is connected by thickness two parts and forms, and constitutes the coaxial transmission line of different impedances with circle wall pipe.
3, antenna according to claim 1 is characterized in that: the pedestal coil is by the shielding conductor coiled, and its heart yearn connects the core conductor of oscillator down, and metal sheath connects the pipe wall of oscillator down.
4, antenna according to claim 1 is characterized in that: the lower end of loading coil is threaded with the core conductor of following oscillator.
5, antenna according to claim 1 is characterized in that: pedestal coils overwraps insulating shield.
6, antenna according to claim 1 is characterized in that: loading coil has insulation cover outward, and there is insulating sleeve last oscillator outside, and the insulation cover of it and loading coil is connected as one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216802 CN2134718Y (en) | 1992-08-21 | 1992-08-21 | Rod antenna for mid-feed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92216802 CN2134718Y (en) | 1992-08-21 | 1992-08-21 | Rod antenna for mid-feed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2134718Y true CN2134718Y (en) | 1993-05-26 |
Family
ID=33764858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92216802 Expired - Fee Related CN2134718Y (en) | 1992-08-21 | 1992-08-21 | Rod antenna for mid-feed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2134718Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170038A (en) * | 2011-02-05 | 2011-08-31 | 汉洋(博罗)电子有限公司 | Ultrashort-wave broadband antenna |
| CN104282981A (en) * | 2013-07-09 | 2015-01-14 | 比特硕尼克株式会社 | Vehicle-mounted replacement antenna |
| CN106207395A (en) * | 2016-08-28 | 2016-12-07 | 福建省泉州华鸿通讯有限公司 | A kind of Vehicle mounted station multiband, high-gain aerial |
-
1992
- 1992-08-21 CN CN 92216802 patent/CN2134718Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102170038A (en) * | 2011-02-05 | 2011-08-31 | 汉洋(博罗)电子有限公司 | Ultrashort-wave broadband antenna |
| CN104282981A (en) * | 2013-07-09 | 2015-01-14 | 比特硕尼克株式会社 | Vehicle-mounted replacement antenna |
| CN104282981B (en) * | 2013-07-09 | 2017-06-13 | 比特硕尼克株式会社 | Vehicle-mounted replacing antenna |
| CN106207395A (en) * | 2016-08-28 | 2016-12-07 | 福建省泉州华鸿通讯有限公司 | A kind of Vehicle mounted station multiband, high-gain aerial |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |