CN202872998U - Mobile terminal complex antenna system and mobile terminal - Google Patents
Mobile terminal complex antenna system and mobile terminal Download PDFInfo
- Publication number
- CN202872998U CN202872998U CN 201220449818 CN201220449818U CN202872998U CN 202872998 U CN202872998 U CN 202872998U CN 201220449818 CN201220449818 CN 201220449818 CN 201220449818 U CN201220449818 U CN 201220449818U CN 202872998 U CN202872998 U CN 202872998U
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- Prior art keywords
- antenna
- portable terminal
- helix
- heart yearn
- match circuit
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Abstract
The utility model discloses a mobile terminal complex antenna system, comprising an antenna, a radio and television reception chip, and a match circuit used for circuit matching between the antenna and the radio and television reception chip. The antenna comprises a helical antenna and a rod antenna. The helical antenna comprises a core wire and a spiral wire surrounding the core wire. An end of the spiral wire is connected with the rod antenna, and the core wire on the end is open. The other end of the spiral wire is a feed end, connected with the match circuit. The core wire on the end is a grounding end. The utility model also discloses a mobile terminal. The antenna is combined by the helical antenna and the rod antenna. The helical antenna comprising the core wire and the spiral wire surrounding the core wire can be arranged in a housing of the mobile terminal to replace a part of the rod, thereby reducing pitch number of the rod antenna and reducing size of the rod antenna. The mobile terminal complex antenna system and the mobile terminal are simple in structure, low in cost, and can be used in systems with a built-in analog television antenna and a built-in digital television antenna, etc.
Description
Technical field
The application relates to the communications field, relates in particular to a kind of portable terminal combined antenna system and portable terminal.
Background technology
The analog television broadcast frequency range be 48MHz to 860MHz(digital television broadcasting frequency from 470MHz to 860MHz), and the non-constant width of relative bandwidth; Wavelength is from 6.25 meters to 350 millimeters, designing requirement by hertz resonant antenna, the length of antenna oscillator will reach quarter-wave at least, the length that is to say antenna needs 1.6 meters to 87 millimeters, the hand-held devices such as mobile phone generally are 100 millimeters long, 50 mm wides, 10 millimeters thick, volume is very little, and also has other multiple antenna, and the space that is used for containing antenna is very limited.For saving spatial accommodation, the antenna of the built-in simulated television of portable terminal nearly all uses telescopic antenna at present, the telescopic antenna that is used for the portable terminal simulated television is generally made the retractable antenna of the thicker multi-section type of diameter, need in use antenna is pulled out, when not using with the sky linear shrinkage.The Telescopic antenna structure more complicated, take up room large.
Summary of the invention
The application provides a kind of portable terminal combined antenna system and portable terminal.
First aspect according to the application, the application provides a kind of portable terminal combined antenna system, comprise antenna and radio and television receiving chip, also comprise the match circuit for the Circuit Matching between described antenna and the described radio and television receiving chip, described antenna comprises helical antenna and telescopic antenna, described helical antenna comprises heart yearn and around the helix of described heart yearn, an end of described helix is connected with described telescopic antenna, the heart yearn open circuit of this end; The other end of described helix is feed end, is connected with described match circuit, and the heart yearn of this end is earth terminal.
Described feed end is connected with the rf inputs of described broadcast television signal receiving chip by described match circuit, and described earth terminal is connected with radio frequency ground.
Described telescopic antenna comprises the single-unit pull bar, and described helix is connected by shell fragment with described single-unit pull bar.
Described telescopic antenna comprises the more piece pull bar, and described helix is connected by shell fragment with described more piece pull bar.
Described heart yearn comprises metal inside and coating layer.
The material of described metal inside is a kind of in copper, aluminium, aluminium alloy or the copper alloy, and the material of described coating layer is plastics.
Described helix is turned to by enamelled wire or electric wire.
Also comprise amplifier, described amplifier one end is connected with described match circuit, the described amplifier other end is connected with described radio and television receiving chip, and described feed end is connected with the rf inputs of described amplifier by described match circuit, and described earth terminal connects with radio frequency ground.
According to the application's second aspect, the application provides a kind of portable terminal, comprises housing, also comprises above-mentioned portable terminal combined antenna system, is provided with through hole on the described housing, and described telescopic antenna is located in the described through hole.
Described helical antenna is fixedly mounted on the described housing, and the sidewall of close described housing one side, and described telescopic antenna is arranged on the inboard of described helical antenna.
The application's beneficial effect is: because the application's antenna is combined by helical antenna and telescopic antenna, helical antenna comprises the helix of heart yearn and wound core line, can be arranged in the housing of portable terminal, the Substitute For Partial pull bar, reduced the joint number of telescopic antenna, made the telescopic antenna smaller volume, the application is simple in structure, and cost is low, can be used in the systems such as built-in stimulation TV antenna, built-in digital television antenna.
Description of drawings
Fig. 1 is the high-level schematic functional block diagram of the combined antenna system of a kind of embodiment of the application;
Fig. 2 is the high-level schematic functional block diagram of the combined antenna system of the another kind of embodiment of the application;
Fig. 3 is the structural representation of the antenna among a kind of embodiment of the application;
Fig. 4 is the scheme of installation of the antenna among a kind of embodiment of the application's portable terminal.
Embodiment
By reference to the accompanying drawings the present invention is described in further detail below by embodiment.
Embodiment one:
As shown in Figure 1 to Figure 3, the application's portable terminal combined antenna system, its a kind of execution mode comprises antenna, match circuit and radio and television receiving chip, match circuit is arranged between antenna and the radio and television receiving chip, is used for Circuit Matching.Antenna comprises helical antenna 10 and telescopic antenna 20, and helical antenna 10 comprises heart yearn and helix 11, and helix 11 is around this heart yearn.Helix 11 can be adjacent to heart yearn, makes helix 11 twine and be fixed on the heart yearn.One end of helix 11 is connected with telescopic antenna 20, the heart yearn open circuit of this end; The other end of helix 11 is feed end, is connected with match circuit, and the heart yearn of this end is earth terminal.
In one embodiment, telescopic antenna 20 comprises the single-unit pull bar, and helix 11 is slidingly connected by shell fragment 30 with the single-unit pull bar.
In another embodiment, telescopic antenna 20 comprises the more piece pull bar, and the more piece pull bar is together nestable, helix 11 be arranged on outermost pull bar and be slidingly connected by shell fragment 30.
Heart yearn comprises metal inside 12 and coating layer 13.In a kind of instantiation, it is 0.90 millimeter electric wire that heart yearn can use diameter, and the diameter of metal inside 12 is 0.54 millimeter, and the diameter of heart yearn and metal inside 12 also can change as required.Helix 11 is the spiral helicine outside line of enamelled wire or electric wire coiled, and the diameter of helix 11 is 0.18 millimeter.Helix 11 is a kind of casual ripple transmission systems that can shorten the axial wavelength of high-frequency signal.When the stretching rear total length of the helix of coiling be operation wavelength 1/2 or 1/4 the time, have the double action of open transmission line and resonant antenna, thereby expanded working band and the coupling efficiency of resonant antenna.
The material of metal inside 12 is a kind of in copper, aluminium, aluminium alloy or the copper alloy.The material of coating layer 13 is plastics, and the span of dielectric constant is [1.5,3.9].The length of helical antenna 10 parts is about 60 millimeters.The length of telescopic antenna 20 parts is about 50 millimeters.
In one embodiment, feed end is connected with match circuit, and match circuit is connected rf inputs and is connected with the broadcast television signal receiving chip, and earth terminal connects with radio frequency ground.Refer to, all refer to the level reference point of circuit because of the ground in the circuit, the radio circuit among the application is established separately ground radio frequency among the application, interfere with each other to avoid the low-and high-frequency circuit, and circuit board always take the signal quarantine measures between publicly.
Embodiment two:
The application's portable terminal combined antenna system, embodiment two is with the difference of embodiment one, also comprises amplifier.Amplifier is used for broadcast television signal and covers relatively poor area, and amplifier can be selected low noise amplifier (be Low-noise amplifier, be called for short LNA), and this amplifier one end is connected with match circuit, and the other end is connected with the radio and television receiving chip.Feed end is connected with the rf inputs of amplifier by match circuit, and earth terminal connects with radio frequency ground.
The signal of antenna reception arrives low noise amplifier by match circuit, amplifies through low noise amplifier and exports to the demodulation of broadcast television signal receiving chip, decoding, gives mobile phone baseband, and plays TV at display screen.
Embodiment three:
As shown in Figures 1 to 4, the application's portable terminal, its a kind of execution mode, comprise housing 40 and portable terminal combined antenna system, portable terminal combined antenna system comprises antenna, match circuit and radio and television receiving chip, match circuit is arranged between antenna and the radio and television receiving chip, is used for Circuit Matching.Antenna comprises helical antenna 10 and telescopic antenna 20, and helical antenna 10 comprises heart yearn and helix 11, and helix 11 is around this heart yearn.Helix 11 can be adjacent to heart yearn, makes helix 11 twine and be fixed on the heart yearn.Portable terminal combined antenna system is arranged in the housing 40, is provided with through hole on the housing 40, and telescopic antenna 20 is located in the through hole 41, and can from this through hole 41 telescopic antenna 20 be pulled out.
One end of helix 11 is connected with telescopic antenna 20, the heart yearn open circuit of this end; The other end of helix 11 is feed end, is connected with match circuit, and the heart yearn of this end is earth terminal.
In one embodiment, telescopic antenna 20 comprises the single-unit pull bar, and helix 11 is slidingly connected by shell fragment 30 with the single-unit pull bar.
In another embodiment, telescopic antenna 20 comprises the more piece pull bar, and the more piece pull bar is together nestable, helix 11 be arranged on outermost pull bar and be slidingly connected by shell fragment 30.
Heart yearn comprises metal inside 12 and coating layer 13.In a kind of instantiation, it is 0.90 millimeter electric wire that heart yearn can use diameter, and the diameter of metal inside 12 is 0.54 millimeter, and the diameter of heart yearn and metal inside 12 also can change as required.Helix 11 is the spiral helicine outside line of enamelled wire or electric wire coiled, and the diameter of helix 11 is 0.18 millimeter.Helix 11 is a kind of casual ripple transmission systems that can shorten the axial wavelength of high-frequency signal.When the stretching rear total length of the helix of coiling be operation wavelength 1/2 or 1/4 the time, have the double action of open transmission line and resonant antenna, thereby expanded working band and the coupling efficiency of resonant antenna.The material of metal inside 12 is a kind of in copper, aluminium, aluminium alloy or the copper alloy.The material of coating layer 13 is plastics, and the span of dielectric constant is [1.5,3.9].The length of helical antenna 10 parts is about 60 millimeters.The length of telescopic antenna 20 parts is about 50 millimeters.
In one embodiment, feed end is connected with match circuit, and match circuit is connected rf inputs and is connected with the broadcast television signal receiving chip, and earth terminal connects with radio frequency ground.Refer to, all refer to the level reference point of circuit because of the ground in the circuit, the radio circuit among the application is established separately ground radio frequency among the application, interfere with each other to avoid the low-and high-frequency circuit, and circuit board always take the signal quarantine measures between publicly.
Embodiment four:
The application's portable terminal, embodiment four is with the difference of embodiment three, also comprises amplifier.Amplifier is used for broadcast television signal and covers relatively poor area, and amplifier can be selected low noise amplifier (be Low-noise amplifier, be called for short LNA), and this amplifier one end is connected with match circuit, and the other end is connected with the radio and television receiving chip.Feed end is connected with the rf inputs of amplifier by match circuit, and earth terminal connects with radio frequency ground.
The signal of antenna reception arrives low noise amplifier by match circuit, amplifies through low noise amplifier and exports to the demodulation of broadcast television signal receiving chip, decoding, gives mobile phone baseband, and plays TV at display screen.
Above content is in conjunction with concrete execution mode further detailed description of the utility model, can not assert that implementation of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, can also make some simple deduction or replace.
Claims (10)
1. portable terminal combined antenna system, comprise antenna and radio and television receiving chip, it is characterized in that, also comprise the match circuit for the Circuit Matching between described antenna and the described radio and television receiving chip, described antenna comprises helical antenna and telescopic antenna, described helical antenna comprises heart yearn and around the helix of described heart yearn, an end of described helix is connected with described telescopic antenna, the heart yearn open circuit of this end; The other end of described helix is feed end, is connected with described match circuit, and the heart yearn of this end is earth terminal.
2. portable terminal combined antenna as claimed in claim 1 system is characterized in that, described feed end is connected with the rf inputs of described broadcast television signal receiving chip by described match circuit, and described earth terminal is connected with radio frequency ground.
3. portable terminal combined antenna as claimed in claim 2 system is characterized in that, described telescopic antenna comprises the single-unit pull bar, and described helix is connected by shell fragment with described single-unit pull bar.
4. portable terminal combined antenna as claimed in claim 2 system is characterized in that, described telescopic antenna comprises the more piece pull bar, and described helix is connected by shell fragment with described more piece pull bar.
5. portable terminal combined antenna as claimed in claim 1 system is characterized in that, described heart yearn comprises metal inside and coating layer.
6. portable terminal combined antenna as claimed in claim 5 system is characterized in that, the material of described metal inside is a kind of in copper, aluminium, aluminium alloy or the copper alloy, and the material of described coating layer is plastics.
7. portable terminal combined antenna as claimed in claim 1 system is characterized in that, described helix is turned to by enamelled wire or electric wire.
8. portable terminal combined antenna as claimed in claim 1 system, it is characterized in that, also comprise amplifier, described amplifier one end is connected with described match circuit, the described amplifier other end is connected with described radio and television receiving chip, described feed end is connected with the rf inputs of described amplifier by described match circuit, and described earth terminal connects with radio frequency ground.
9. a portable terminal comprises housing, it is characterized in that, also comprises such as each described portable terminal combined antenna system in the claim 1 to 8, and be provided with through hole on the described housing, described telescopic antenna is located in the described through hole.
10. portable terminal as claimed in claim 9 is characterized in that, described helical antenna is fixedly mounted on the described housing, and the sidewall of close described housing one side, and described telescopic antenna is arranged on the inboard of described helical antenna.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220449818 CN202872998U (en) | 2012-09-05 | 2012-09-05 | Mobile terminal complex antenna system and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220449818 CN202872998U (en) | 2012-09-05 | 2012-09-05 | Mobile terminal complex antenna system and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202872998U true CN202872998U (en) | 2013-04-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220449818 Expired - Fee Related CN202872998U (en) | 2012-09-05 | 2012-09-05 | Mobile terminal complex antenna system and mobile terminal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202872998U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111478011A (en) * | 2020-04-15 | 2020-07-31 | 西安电子工程研究所 | Folding variable-frequency dipole antenna |
-
2012
- 2012-09-05 CN CN 201220449818 patent/CN202872998U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111478011A (en) * | 2020-04-15 | 2020-07-31 | 西安电子工程研究所 | Folding variable-frequency dipole antenna |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130410 Termination date: 20190905 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |