CN2207004Y - Hand-hold whip-shape antenna device with induction transceiver - Google Patents
Hand-hold whip-shape antenna device with induction transceiver Download PDFInfo
- Publication number
- CN2207004Y CN2207004Y CN 94223887 CN94223887U CN2207004Y CN 2207004 Y CN2207004 Y CN 2207004Y CN 94223887 CN94223887 CN 94223887 CN 94223887 U CN94223887 U CN 94223887U CN 2207004 Y CN2207004 Y CN 2207004Y
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- Prior art keywords
- antenna
- radio station
- hand
- utility
- circuit network
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- Expired - Fee Related
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Abstract
The utility model relates to a hand-holding whip-shaped antenna device with an induction transceiver, which is used for wireless device antennae of all places with power transmission lines of electric railways, etc. The utility model is mainly composed of a metallic disc arranged on the upper end of an antenna and an antenna circuit network arranged on the lower end of the antenna, wherein, the antenna circuit network of which the outer part is provided with an insulating protective sleeve is a resonant circuit and is connected with the transceiver through a high-frequency inserting piece; a power transmission line is electrically connected with the metallic disc via electromagnetic waves. The utility model has the advantages of small size, light weight, portability, high emission efficiency and increase of call distance. Antenna parameters are difficult to change along with exoteric factors such as the contact of human bodies, etc. The utility model solves the problem of unreliable communication among a railway train conductor, a locomotive driver and an operator on duty of a station.
Description
The utility model relates to a kind of electric railway that is used for, mine, the whip antenna device in the hand-held induction radio station of down-hole and all power transmission lines, the antenna of genus wireless device.
At present, the hand-held induction radio station antenna of domestic employing is the loop aerial of diameter greater than 0.5M, and this antenna assembly volume is big, heaviness, and inconvenience is carried.The coiling in insulating sleeve of reason multi-turn lead forms, its inductance value changes with the external worlds such as contact of human body easily, make antenna parameter change accordingly, cause that thus the emission field intensity descends, speech range shortens, in addition because the loop aerial loss is big, efficient is low, and the permissible call distance is restricted, and especially can not realize the railroad train vehicle commander reliably, trainman, and the contact of the conversation between the operator on duty of station.
The purpose of this utility model is the weak point that exists at the antenna assembly in above-mentioned induction radio station, designs a kind of whip antenna device of novel hand-held induction radio station, improves emission effciency, dwindle the volume of antenna assembly, weight reduction, easy to use and carry, increase speech range.
The purpose of this utility model is to realize by following technical scheme: antenna assembly is by metal dish, antenna, and antenna circuit network formation, the top of antenna is provided with metal dish, the antenna bottom is connected with the antenna circuit network, and the antenna circuit network is connected with the induction radio station through high frequency connector; Metal dish is with power transmission line through electromagnetic wave and is electrically connected; Its antenna circuit network is made of resonant circuit, and its resonance is on the frequency of radio station work, and this network-external is surrounded by insulating sleeve.The utility model antenna circuit network inside, radio station of also can packing into.
The utility model compared with the prior art volume is little, in light weight, be easy to carry, improved emission effciency, increased speech range, and antenna parameter is difficult for changing with the external worlds such as contact of human body, help the railroad train vehicle commander, the trainman, and write to each other between the operator on duty of station, also be applicable to construction protection simultaneously, various mobile personnels such as power supply maintenance and flood control use.
Below in conjunction with drawings and Examples the utility model is further described.
Accompanying drawing 1 reaches and the power transmission line connection diagram for hand-held induction radio station whip antenna device constitutes;
Accompanying drawing 2 is the circuit diagram of the utility model antenna circuit network one embodiment.
In accompanying drawing 1 and accompanying drawing 2,1 is power transmission line, and 2 is metal dish, and 3 is the metal pull bar antenna, and 4 is the antenna circuit network, and 5 is High-frequency plug, and 6 is the radio station, and 7 is inductance, and 8,9,10,11 are electric capacity.
The utility model is by metal dish 2, antenna 3, antenna circuit network 4 is formed, the metal pull bar antenna of antenna 3 for stretching and maybe can amounting to, its lower end is provided with insulating sleeve, antenna circuit network 4 outsides are by wrapped with insulation, constitute the consisting of of resonant circuit of antenna circuit network in the present embodiment: inductance 7 is connected with electric capacity 11, contact 13 places at this between the two are connected to by branch road in parallel with electric capacity 8 again after 9 series connection of electric capacity 10 and variable capacitance, the other end ground connection of this branch road, the high-frequency socket outer metal sleeve in High-frequency plug 5 outer metal sleeves and radio station 6 joins, the high-frequency socket outer metal sleeve directly and radio station 6 shells join.Inductance 7 is wound on the magnetic material or is wound on the insulating material by plain conductor and constitutes, and its inductance value is 200-620 μ H.Electric capacity 11 main effects have two: first electricity makes radio station power be fed on the antenna effectively; It two has been protective actions, for the 50HZ low frequency induction voltage that prevents power transmission line 1 is introduced the radio station.
The groundwork principle of this antenna assembly by the radio station not the high frequency power of level power amplifier output send into the resonant circuit of forming by inductance and relevant electric capacity, adjust the component parameters of resonant circuit, make it resonance on the operating frequency in radio station, its operating frequency range is between 0.1MHZ-3MHZ.Because this resonant circuit produces very high high frequency voltage at inductance and electric capacity two ends, around antenna, form very strong electromagnetic wave, on the power transmission line of induction on antenna, by another radio station antenna that electromagnetic wave is sent to certain distance of inducing of power transmission line.To power transmission line 1 induced electricity magnetic wave, increase speech range for more effectively, added rosette 2 in metal pull bar antenna 3 upper ends.
Claims (3)
1, a kind of hand-held induction radio station whip antenna device, constitute by the antenna that is installed on the hand-held induction radio station, the top that it is characterized in that this antenna is provided with metal dish, and the antenna bottom is connected with the antenna circuit network, and the antenna circuit network is connected with the induction radio station through high frequency connector; Metal dish is with power transmission line through electromagnetic wave and is electrically connected;
Its antenna circuit network is made of resonant circuit, and it is wiped and shakes on the frequency of radio station work, and this network-external is surrounded by insulating sleeve.
2, hand-held induction according to claim 1 radio station whip antenna device, it is characterized in that constituting the consisting of of resonant circuit of antenna circuit network: inductance (7) is connected with electric capacity (11), contact at this between the two (13) locate to be connected to by after the series connection of electric capacity (10) and variable capacitance (9) again with electric capacity (8) branch road in parallel, the other end ground connection of this branch road;
Inductance (7) is wound on the magnetic material or is wound on the insulating material by plain conductor and constitutes, and its inductance value is 200-620 μ H.
3, hand-held induction according to claim 1 radio station whip antenna device is characterized in that the metal pull bar antenna of antenna (3) for stretching and can amounting to, and its lower end is provided with insulating sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94223887 CN2207004Y (en) | 1994-11-02 | 1994-11-02 | Hand-hold whip-shape antenna device with induction transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94223887 CN2207004Y (en) | 1994-11-02 | 1994-11-02 | Hand-hold whip-shape antenna device with induction transceiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2207004Y true CN2207004Y (en) | 1995-09-06 |
Family
ID=33837459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94223887 Expired - Fee Related CN2207004Y (en) | 1994-11-02 | 1994-11-02 | Hand-hold whip-shape antenna device with induction transceiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2207004Y (en) |
-
1994
- 1994-11-02 CN CN 94223887 patent/CN2207004Y/en not_active Expired - Fee Related
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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 |