CN102780074A - Mobile terminal built-in antenna system and mobile terminal - Google Patents
Mobile terminal built-in antenna system and mobile terminal Download PDFInfo
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- CN102780074A CN102780074A CN2012102034342A CN201210203434A CN102780074A CN 102780074 A CN102780074 A CN 102780074A CN 2012102034342 A CN2012102034342 A CN 2012102034342A CN 201210203434 A CN201210203434 A CN 201210203434A CN 102780074 A CN102780074 A CN 102780074A
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Abstract
The invention discloses a mobile terminal built-in antenna system which comprises an antenna and a matching circuit. The antenna comprises a core wire and a spiral wire which encircles the core wire, and the matching circuit is used for matching a circuit between the antenna and a broadcast television reception chip. The invention further discloses a mobile terminal. According to the mobile terminal built-in antenna system and the mobile terminal, the mobile terminal built-in antenna system comprises the antenna and the matching circuit which is connected with the broadcast television reception chip, the antenna comprises the core wire and the spiral wire which encircles the core wire, and the mobile terminal built-in antenna system can be arranged in a casing of the mobile terminal, so that the structure is simple, a built-in problem of a broadcast television antenna, particularly an analog television antenna, of the mobile terminal is solved, the cost is low, the implement is simple, and the mobile terminal built-in antenna system can be used in systems of the built-in analog television antenna, built-in digital television antenna and the like.
Description
Technical field
The application relates to the communications field, relates in particular to a kind of portable terminal built-in aerial system and portable terminal.
Background technology
The analog television broadcast frequency range be 48MHz to 860MHz (the digital television broadcasting frequency is from 470MHz to 860MHz), and the non-constant width of relative bandwidth; Wavelength is from 6.25 meters to 350 millimeters; By the designing requirement of hertz resonant antenna, the length of antenna oscillator will reach quarter-wave at least, that is to say that the length of antenna needs 1.6 meters to 87 millimeters; 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 to hold antenna is very limited.For practicing thrift 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 antenna be pulled out in use, when not using with the sky linear shrinkage.Telescopic antenna structure more complicated, take up room big.
Summary of the invention
The application provides a kind of portable terminal built-in aerial system and portable terminal.
First aspect according to the application; The application provides a kind of portable terminal built-in aerial system; Comprise antenna, be used for the match circuit of the Circuit Matching between said antenna and the radio and television receiving chip, said antenna comprises heart yearn and around the helix of said heart yearn.
Said heart yearn comprises metal inner core and coating layer.
The span of the dielectric constant of said coating layer is [1.5,3.9].
The material of said metal inner core is a kind of in copper, aluminium, aluminium alloy or the copper alloy, and the material of said coating layer is plastics.
The diameter of said heart yearn is 0.90 millimeter, and the diameter of said metal inner core is 0.54 millimeter, and said helix diameter is 0.18 millimeter.
Said helix is turned to by enamelled wire or electric wire.
Also comprise amplifier, said amplifier one end is connected with said antenna through said match circuit, and the said amplifier other end is connected with said radio and television receiving chip.
The said heart yearn of said antenna one end is connected with said match circuit, and the said helix of this end is connected with radio frequency ground through said match circuit; The said heart yearn of the said antenna other end and said helix open circuit.
The said helix of said antenna one end is connected with said match circuit, and the said heart yearn of this end is connected with radio frequency ground through said match circuit; The said helix of the said antenna other end and said heart yearn open circuit.
According to the application's second aspect, the application provides a kind of portable terminal, comprises housing, also comprises the above-mentioned portable terminal built-in aerial system that is arranged in the said housing.
Said antenna is installed on the said housing, and it is one or more the combination in I shape, L shaped, U-shaped or the O shape that said antenna is installed the back.
The application's beneficial effect is: the application is owing to comprise antenna and the match circuit that is connected with the radio and television receiving chip; Antenna comprises the helix of heart yearn and wound core line; Can be arranged in the housing of portable terminal, alternative more piece pull bar and connector thereof, not only 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 system configuration diagrammatic sketch of a kind of embodiment of the application;
Fig. 2 is the system configuration diagrammatic sketch 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 a kind of scheme of installation of the application's antenna;
Fig. 5 is the another kind of scheme of installation of the application's antenna;
Fig. 6 is another scheme of installation of the application's antenna;
Fig. 7 is another scheme of installation of the application's antenna.
Embodiment
Combine accompanying drawing that the present invention is done further explain through embodiment below.
Embodiment one:
Extremely shown in Figure 7 like Fig. 1, the application's portable terminal built-in aerial 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 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.
Heart yearn comprises metal inner core 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 inner core 12 is 0.54 millimeter, and the diameter of heart yearn and metal inner core 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.The material of metal inner core 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 antenna is about 120 millimeters.
In a kind of instantiation, the heart yearn of antenna one end is connected with match circuit, and match circuit is connected with the radio and television receiving chip, and the helix 11 of this end is connected with radio frequency ground through match circuit; The heart yearn of the antenna other end and the helix of this other end 11 open circuits.
In another kind of instantiation, the helix 11 of antenna one end is connected with match circuit, and match circuit is connected with the radio and television receiving chip, and heart yearn is connected with radio frequency ground through match circuit; The heart yearn open circuit of the helix 11 of the antenna other end and this other end.
Be meant that because of the ground in the circuit all refers to the level reference point of circuit, the radio circuit among the application is established ground separately, interferes with each other to avoid the low-and high-frequency circuit, and takes the Signal Spacing measure between the total public ground of circuit board radio frequency among the application.
Helix 11 is a kind of casual ripple transmission systems that can shorten the axial wavelength of high-frequency signal.When the stretching back of the helix of coiling total length be operation wavelength 1/2 or 1/4 the time, have the double action of open transmission line resonant antenna, thereby expanded the working band and the coupling efficiency of resonant antenna.
Embodiment two:
As shown in Figure 2, the application's portable terminal built-in aerial 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; It (is Low-noise amplifier that amplifier can be selected low noise amplifier for use; Be called for short LNA), this amplifier one end is connected with antenna through match circuit, and the other end is connected with the radio and television receiving chip.
The signal that antenna receives arrives low noise amplifier through match circuit, amplifies through low noise amplifier and exports to the demodulation of broadcast television signal receiving chip, decoding, gives mobile phone baseband, and on display screen, plays TV.
The heart yearn of antenna one end is connected with the low noise amplifier input through match circuit, and the helix of this end is connected with radio frequency ground.
Embodiment three:
Extremely shown in Figure 7 like Fig. 4; The application provides a kind of portable terminal; Comprise housing 20 and built-in aerial system, the built-in aerial system is arranged in the housing 20, and the built-in aerial 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 heart yearn and helix 11, helix 11 wound core lines.Helix 11 can be adjacent to heart yearn, makes helix 11 twine and be fixed on the heart yearn.
Heart yearn comprises metal inner core 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 inner core 12 is 0.54 millimeter, and the diameter of heart yearn and metal inner core 12 also can change as required.Helix 11 is the spiral helicine outside line of enamelled wire or electric wire coiled, and helix 11 diameters are 0.18 millimeter.The material of metal inner core 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 antenna is about 120 millimeters.
In a kind of instantiation, the heart yearn of antenna one end is connected with match circuit, and match circuit is connected with the radio and television receiving chip, and the helix 11 of this end is connected with radio frequency ground through match circuit; The heart yearn of the antenna other end and the helix of this other end 11 open circuits.
In another kind of instantiation, the helix 11 of antenna one end is connected with match circuit, and match circuit connects and is connected with the radio and television receiving chip, and heart yearn is connected with radio frequency ground through match circuit; The heart yearn open circuit of the helix 11 of the antenna other end and this other end.
Antenna is installed on the housing 20.After installing, antenna is rendered as one or more the combination in I shape, L shaped, U-shaped or the O shape.As in a kind of instantiation, can antenna be pushed down the L shaped inboard upper left half part position of housing that is installed in, GSM antenna (figure does not show) and Bluetooth antenna (figure does not show) are installed in half part position, bottom right.
In this instantiation, portable terminal is a GSM mobile handset, and the analog television broadcast frequency range is that 48MHz is to 860MHz.Portable terminal also can be other hand-held devices, mp3 for example, mp4, PDA etc.
Embodiment four:
A kind of portable terminal that present embodiment provides, the difference of itself and embodiment four is, also comprises amplifier.Amplifier is used for broadcast television signal and covers relatively poor area; It (is Low-noise amplifier that amplifier can be selected low noise amplifier for use; Be called for short LNA), this amplifier one end is connected with antenna through match circuit, and the other end is connected with the radio and television receiving chip.
The signal that antenna receives arrives low noise amplifier through match circuit, amplifies through low noise amplifier and exports to the demodulation of broadcast television signal receiving chip, decoding, gives mobile phone baseband, and on display screen, plays TV.
The heart yearn of antenna one end is connected with the low noise amplifier input through match circuit, and the helix of this end is connected with radio frequency ground.
Above content is to combine concrete execution mode to the further explain that the present invention did, and can not assert that practical implementation of the present invention is confined to these explanations.For the those of ordinary skill of technical field under the present invention, under the prerequisite that does not break away from the present invention's design, can also make some simple deduction or replace.
Claims (11)
1. a portable terminal built-in aerial system is characterized in that, comprises antenna, is used for the match circuit of the Circuit Matching between said antenna and the radio and television receiving chip, and said antenna comprises heart yearn and around the helix of said heart yearn.
2. portable terminal built-in aerial as claimed in claim 1 system is characterized in that said heart yearn comprises metal inner core and coating layer.
3. portable terminal built-in aerial as claimed in claim 2 system is characterized in that the span of the dielectric constant of said coating layer is [1.5,3.9].
4. like claim 2 or 3 described portable terminal built-in aerial systems, it is characterized in that the material of said metal inner core is a kind of in copper, aluminium, aluminium alloy or the copper alloy, the material of said coating layer is plastics.
5. portable terminal built-in aerial as claimed in claim 2 system is characterized in that the diameter of said heart yearn is 0.90 millimeter, and the diameter of said metal inner core is 0.54 millimeter, and said helix diameter is 0.18 millimeter.
6. portable terminal built-in aerial as claimed in claim 1 system is characterized in that said helix is turned to by enamelled wire or electric wire.
7. portable terminal built-in aerial as claimed in claim 1 system is characterized in that, also comprises amplifier, and said amplifier one end is connected with said antenna through said match circuit, and the said amplifier other end is connected with said radio and television receiving chip.
8. portable terminal built-in aerial as claimed in claim 1 system is characterized in that the said heart yearn of said antenna one end is connected with said match circuit, and the said helix of this end is connected with radio frequency ground through said match circuit; The said heart yearn of the said antenna other end and said helix open circuit.
9. portable terminal built-in aerial as claimed in claim 1 system is characterized in that the said helix of said antenna one end is connected with said match circuit, and the said heart yearn of this end is connected with radio frequency ground through said match circuit; The said helix of the said antenna other end and said heart yearn open circuit.
10. a portable terminal comprises housing, it is characterized in that, also comprise be arranged in the said housing like each described portable terminal built-in aerial system in the claim 1 to 9.
11. portable terminal as claimed in claim 10 is characterized in that, said antenna is installed on the said housing, and it is one or more the combination in I shape, L shaped, U-shaped or the O shape that said antenna is installed the back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102034342A CN102780074A (en) | 2012-06-19 | 2012-06-19 | Mobile terminal built-in antenna system and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102034342A CN102780074A (en) | 2012-06-19 | 2012-06-19 | Mobile terminal built-in antenna system and mobile terminal |
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| Publication Number | Publication Date |
|---|---|
| CN102780074A true CN102780074A (en) | 2012-11-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102034342A Pending CN102780074A (en) | 2012-06-19 | 2012-06-19 | Mobile terminal built-in antenna system and mobile terminal |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989705A (en) * | 2004-07-26 | 2007-06-27 | 松下电器产业株式会社 | Mobile telephone device |
| WO2011030703A1 (en) * | 2009-09-14 | 2011-03-17 | 国立大学法人長崎大学 | Inverse-l shaped antenna |
| CN102468530A (en) * | 2010-11-08 | 2012-05-23 | 纬创资通股份有限公司 | Electronic device and antenna thereof |
| CN202737092U (en) * | 2012-06-19 | 2013-02-13 | 深圳天珑无线科技有限公司 | Mobile terminal built-in antenna system and mobile terminal |
-
2012
- 2012-06-19 CN CN2012102034342A patent/CN102780074A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1989705A (en) * | 2004-07-26 | 2007-06-27 | 松下电器产业株式会社 | Mobile telephone device |
| WO2011030703A1 (en) * | 2009-09-14 | 2011-03-17 | 国立大学法人長崎大学 | Inverse-l shaped antenna |
| CN102468530A (en) * | 2010-11-08 | 2012-05-23 | 纬创资通股份有限公司 | Electronic device and antenna thereof |
| CN202737092U (en) * | 2012-06-19 | 2013-02-13 | 深圳天珑无线科技有限公司 | Mobile terminal built-in antenna system and mobile terminal |
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Application publication date: 20121114 |