CN202423562U - Earphone antenna - Google Patents
Earphone antenna Download PDFInfo
- Publication number
- CN202423562U CN202423562U CN 201220050755 CN201220050755U CN202423562U CN 202423562 U CN202423562 U CN 202423562U CN 201220050755 CN201220050755 CN 201220050755 CN 201220050755 U CN201220050755 U CN 201220050755U CN 202423562 U CN202423562 U CN 202423562U
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- CN
- China
- Prior art keywords
- antenna
- mic
- pin contact
- earphone
- contact connector
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- 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 - Lifetime
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Abstract
The utility model discloses an earphone antenna. The earphone antenna comprises a left-channel earphone, a right-channel earphone, a microphone (MIC) circuit, a first antenna which is used for receiving ultrahigh frequency (UHF) electromagnetic waves, a second antenna which is used for receiving very high frequency (VHF) electromagnetic waves, a separation superposition circuit and a pin type plug connector, wherein the MIC circuit comprises screen grid (SG), left (L), right (R), MIC and ground (G) terminals; the pin type plug connector comprises L, R, MIC and Antenna terminals; the MIC circuit, the separation superposition circuit and the pin type plug connector are sequentially connected; the left-channel earphone and the right-channel earphone are connected with the MIC circuit respectively; the first antenna is connected with the pin type plug connector; and the second antenna is connected with the MIC circuit and the pin type plug connector respectively. The utility model has the advantages that the earphone antenna can receive multiple frequency bands, and has an attractive appearance and excellent performance.
Description
Technical field
The utility model relates to a kind of antenna, especially relates to a kind of earphone antenna.
Background technology
Recently, along with a large amount of appearance of various mobile communication electronic products on market that can watch digital moving-tv and listening in frequency modulation broadcast, the frequency range of digital moving-tv is at 470MHz-860MHz; The all channel antenna that belongs to uhf band, and the frequency range of FM broadcasting belongs to the VHF frequency range at 80MHz-110MHz; In order to make its vision signal of reception and the fm broadcast signal that above-mentioned mobile communication electronic product can be smooth; So need a kind of antenna, in order to cooperate the requirement of carrying of above-mentioned mobile communication electronic product, this antenna at first profile wants compact; Secondly can receive the electromagnetic wave signal of different frequency range, also want superior performance at last.
Now, the reception antenna development that is applied to mobile electronic product also relatively lags behind, and the reception antenna of the mobile electronic product of main flow all adopts external telescopic antenna to realize, recent years also occurs built-in active digital television antenna.Though external telescopic antenna can satisfy index request on performance, in useful life, mechanical strength, property easy to use, especially the outward appearance aspect is difficult to satisfy customer requirement.Though and built-in active digital television antenna will be worse than external telescopic antenna in useful life, mechanical strength, property easy to use with satisfy its requirement of client in appearance on performance, simultaneously on price than higher.
These two kinds of antennas all can not meet three requirements in front, and market is anxious expects that the outstanding antenna that meets above-mentioned three requirements occurs.
Summary of the invention
The utility model is to the ubiquitous shortcoming of above-mentioned antenna, proposes a kind ofly can receive UHF, earphone antenna that the electromagnetic performance of VHF is outstanding.
The design that the utility model is taked is:
Earphone antenna; Comprise L channel earphone, R channel earphone, MIC circuit; Described MIC circuit comprises SG, L, R, MIC, G end; Also comprise being used to receive electromagnetic first antenna of UHF, being used to receive electromagnetic second antenna of VHF, separate supercircuit, Pin contact connector, described Pin contact connector comprises that L, R, MIC, Antenna hold described MIC circuit, separate supercircuit, the Pin contact connector joins successively, and described L channel earphone, R channel earphone join with the MIC circuit respectively; First antenna connects the Pin contact connector, and second antenna connects the MIC circuit respectively, connects the Pin contact connector.
A kind of preferred version, said separation supercircuit is made up of first high frequency choke coil, second high frequency choke coil, the 3rd high frequency choke coil, the 4th high frequency choke coil, first electric capacity, second electric capacity, the 3rd electric capacity; The SG end of MIC circuit connects the Antenna end of Pin contact connector through first high frequency choke coil; The L end of MIC circuit connects the L end of Pin contact connector through second high frequency choke coil; The R end of MIC circuit connects the R end of Pin contact connector through the 3rd high frequency choke coil; The MIC end of MIC circuit connects the MIC end of Pin contact connector through the 4th high frequency choke coil; The L end of MIC circuit is held through the Antenna that first electric capacity connects the Pin contact connector, and R end warp second electric capacity of MIC circuit connects the Antenna end of Pin contact connector, and MIC end warp the 3rd electric capacity of MIC circuit connects the Antenna end of Pin contact connector; The G end of MIC circuit is held through the Antenna that second antenna connects the Pin contact connector, and first antenna connects the Antenna end of Pin contact connector.
Described first antenna of a kind of preferred version is a Monopole antenna pattern, and electrical length is the quarter-wave of UHF frequency band.Described second antenna is a Monopole antenna pattern, and electrical length is the quarter-wave of VHF frequency band.
In sum, the utlity model has following significant beneficial effect:
(1) the application has first antenna, second antenna, can receive UHF and VHF frequency range, both can be used as the digital moving-tv antenna and has used, and also can be used as radio antenna and uses;
(2) the application has the separation supercircuit; The separation supercircuit partly plays separating audio signals and VHF and UHF electromagnetic wave, also removal is disturbed and strengthened its VHF and the electromagnetic effect of UHF, and this makes earphone antenna that outstanding performance arranged, and is shown in the following figure; The relative built-in aerial of the application's earphone antenna; Performance is excellent more, meets the index request of present digital TV antenna and FM antenna fully, even can reach the performance of external telescopic antenna
(3) the application inserts in the mobile communication terminal device through the Pin contact connector, can not destroy the outward appearance of equipment with respect to external telescopic antenna, meets the Mechanical Builds requirement of equipment, and long service life is used simple.
Description of drawings
Accompanying drawing 1 is the circuit diagram of the said earphone antenna of the utility model;
Accompanying drawing 2 is the structure chart of the said earphone antenna of the utility model.
Embodiment
In order to let those skilled in the art understand the technical scheme of the utility model better, the utility model is done further to set forth below in conjunction with accompanying drawing.
As shown in Figure 1; Earphone antenna; Comprise L channel earphone 11, R channel earphone 12, MIC circuit 2; Described MIC circuit 2 comprises SG, L, R, MIC, G end, also comprises being used to receive electromagnetic first antenna of UHF, being used to receive electromagnetic second antenna of VHF, separating supercircuit 3, Pin contact connector 4, and described Pin contact connector 4 comprises L, R, MIC, Antenna end.Said separation supercircuit is made up of first high frequency choke coil 30, second high frequency choke coil 31, the 3rd high frequency choke coil 32, the 4th high frequency choke coil 33, first electric capacity 34, second electric capacity 35, the 3rd electric capacity 36; The SG end of MIC circuit 2 connects the Antenna end of Pin contact connector 4 through first high frequency choke coil 30; The L end of MIC circuit 2 connects the L end of Pin contact connector 4 through second high frequency choke coil 31; The R end of MIC circuit 2 connects the R end of Pin contact connector 4 through the 3rd high frequency choke coil 32; The MIC end of MIC circuit 2 connects the MIC end of Pin contact connector 4 through the 4th high frequency choke coil 33; The L end of MIC circuit 2 is held through the Antenna that first electric capacity 34 connects Pin contact connector 4, and R end warp second electric capacity 35 of MIC circuit 2 connects the Antenna end of Pin contact connector 4, and MIC end warp the 3rd electric capacity 36 of MIC circuit 2 connects the Antenna end of Pin contact connector 4; The G end of MIC circuit 2 is held through the Antenna that second antenna connects Pin contact connector 4, and first antenna connects the Antenna end of Pin contact connector 4.
The end of first antenna with separate supercircuit and link to each other, second antenna links to each other with the MIC circuit board as the top G of the ground wire of MIC simultaneously, and is terminal with to separate supercircuit continuous.The pattern of two antennas all is a Monopole antenna pattern; Adjust the length of its antenna respectively and optimize its performance; Theoretic length is λ/4; Both the first antenna electrical length was the quarter-wave of UHF frequency band, and second antenna is the quarter-wave of VHF frequency band for the Monopole electrical length.In order to adapt to varying environment, can finely tune.When earphone antenna and mobile electronic product collocation use; Receive the electromagnetic wave of its uhf band through first antenna of its earphone antenna; And receive the electromagnetic wave of its VHF frequency range through its second antenna, export after making the electromagnetic wave of above-mentioned frequency range the loudspeaker of the display unit through its electronic product and earphone antenna converting image and sound to respectively.
At MIC circuit place, the L channel earphone links to each other with the MIC circuit through tone frequency channel wire respectively with the R channel earphone, with transmitting audio signal.The SG end is the audio frequency ground of L channel earphone and R channel earpiece audio line.Audio frequency ground SG end separate the supercircuit place through first high frequency choke coil be connected to earphone first antenna and second antenna the junction.The audio frequency ground SG end and the MIC ground G of earphone antenna holds not altogether, and the main advantage on ground is to prevent that the mutual interference mutually between audio signal and the MIC signal from causing distortion.The ground wire G of MIC circuit end as promptly as the ground of MIC circuit, also as second antenna of earphone antenna.
Because all possibly there is radiofrequency signal in the holding wire that sends the MIC end of the holding wire of R channel earpiece audio signal, the holding wire that sends L channel earpiece audio signal to, MIC circuit to and connect between the MIC end of Pin contact connector; So in separating the supercircuit part; Respectively through second high frequency choke coil and the 3rd high frequency choke coil and the disconnection of the 4th high frequency choke coil; These three high frequency choke coils present high impedance in high frequency band, in low-frequency band, present Low ESR.In this external separation supercircuit part; Formation L channel earphone, two audio signal wires of R channel earphone, the end-to-end holding wire of MIC, its two antennas intercouple through its first capacitor to the, three capacitors; These three capacitors are presenting high impedance in low-frequency band; In high frequency band, present Low ESR, thereby in high frequency band, be combined into an integral body.
First choke, first electric capacity, the existence of second electric capacity and the 3rd electric capacity makes that the ability of isolation audio signal, its clutter aspect of filtering and the enhancing radiofrequency signal separates supercircuit is very outstanding.
Like Fig. 2, shown in the profile fineness of earphone antenna small and exquisite, first antenna, second antenna are integrated in MIC circuit and the circuit that separates between the supercircuit.
Need to prove; Under the situation that does not deviate from the utility model spirit and essence thereof; Those of ordinary skill in the art work as can make various corresponding changes and distortion according to the utility model, but these changes and distortion all should belong to the protection range of the appended claim of the utility model.
Claims (4)
1. earphone antenna; Comprise L channel earphone (11), R channel earphone (12), MIC circuit (2); Described MIC circuit (2) comprises SG, L, R, MIC, G end; It is characterized in that: also comprise being used to receive electromagnetic first antenna of UHF, being used to receive electromagnetic second antenna of VHF, separate supercircuit (3), Pin contact connector (4); Described Pin contact connector (4) comprises L, R, MIC, Antenna end, and described MIC circuit (2), separation supercircuit (3), Pin contact connector (4) join successively, and described L channel earphone (11), R channel earphone (12) join with MIC circuit (2) respectively; First antenna connects Pin contact connector (4), and second antenna connects the MIC circuit respectively, connects Pin contact connector (4).
2. earphone antenna according to claim 1 is characterized in that: said separation supercircuit is made up of first high frequency choke coil (30), second high frequency choke coil (31), the 3rd high frequency choke coil (32), the 4th high frequency choke coil (33), first electric capacity (34), second electric capacity (35), the 3rd electric capacity (36);
The SG end of MIC circuit is held through the Antenna that first high frequency choke coil (30) connects Pin contact connector (4),
The L end of MIC circuit is held through the L that second high frequency choke coil (31) connects Pin contact connector (4),
The R end of MIC circuit is held through the R that the 3rd high frequency choke coil (32) connects Pin contact connector (4),
The MIC end of MIC circuit is held through the MIC that the 4th high frequency choke coil (33) connects Pin contact connector (4),
The L end of MIC circuit is held through the Antenna that first electric capacity (34) connects Pin contact connector (4),
The R end of MIC circuit is held through the Antenna that second electric capacity (35) connects Pin contact connector (4),
The MIC end of MIC circuit is held through the Antenna that the 3rd electric capacity (36) connects Pin contact connector (4),
The G end of MIC circuit is held through the Antenna that second antenna connects Pin contact connector (4),
First antenna connects the Antenna end of Pin contact connector (4).
3. earphone antenna according to claim 1 is characterized in that: described first antenna is a Monopole antenna pattern, and electrical length is the quarter-wave of UHF frequency band.
4. earphone antenna according to claim 1 is characterized in that: described second antenna is a Monopole antenna pattern, and electrical length is the quarter-wave of VHF frequency band.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220050755 CN202423562U (en) | 2012-02-17 | 2012-02-17 | Earphone antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220050755 CN202423562U (en) | 2012-02-17 | 2012-02-17 | Earphone antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202423562U true CN202423562U (en) | 2012-09-05 |
Family
ID=46748291
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220050755 Expired - Lifetime CN202423562U (en) | 2012-02-17 | 2012-02-17 | Earphone antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202423562U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111866667A (en) * | 2019-04-29 | 2020-10-30 | 李锐洪 | Portable pure stereo music player, stereo earphone and portable stereo music playing system |
-
2012
- 2012-02-17 CN CN 201220050755 patent/CN202423562U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111866667A (en) * | 2019-04-29 | 2020-10-30 | 李锐洪 | Portable pure stereo music player, stereo earphone and portable stereo music playing system |
| CN111866667B (en) * | 2019-04-29 | 2023-10-03 | 李锐洪 | Portable pure stereo music player, stereo earphone and portable stereo music playing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |