CN104752811B - Antenna and wireless receiving circuit - Google Patents
Antenna and wireless receiving circuit Download PDFInfo
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- CN104752811B CN104752811B CN201310744008.4A CN201310744008A CN104752811B CN 104752811 B CN104752811 B CN 104752811B CN 201310744008 A CN201310744008 A CN 201310744008A CN 104752811 B CN104752811 B CN 104752811B
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Abstract
Disclose a kind of antenna and wireless receiving circuit, it is by being that not only can do well lower normal work in branch and can work normally in closed state by the Antenna Design of metal material, so that being not only used as antenna when antenna is in and props up and do well but also being used as supporting structure.The antenna and wireless receiving circuit are applied in portable terminal, the first end of the antenna is connect with the first antenna input terminal in the portable terminal, the antenna operation is in one of the first operating mode and the second operating mode, in this first operative mode, the antenna is fitted in be in closed state on the shell of the portable terminal, and the second end of the antenna is connect with the second antenna input of the portable terminal；And in the second mode of operation, the shell of the antenna and the portable terminal has the first angle in the open state.
Description
Technical field
The present invention relates to reception of wireless signals technical fields, and relate more specifically to a kind of antenna and wireless receiving electricity
Road.
Background technique
Currently, having used supporting structure there are many mobile phone to provide support function.If the supporting structure is metal
Material can make a big impact to surrounding antenna, common Antenna Design can only in its expenditure (opening) and closure
Guarantee that antenna can work normally in the case where bracket is in a kind of state, and antenna then can not be just in the case where bracket is in another state
Often work.
If by by the supporting structure of metal material far from metallic support, although can be to avoid supporting structure to antenna
Interference, but significantly limits the installation site of bracket and the installation site of antenna, so as to can not be by bracket and day
Line is installed on comparatively ideal position, and antenna receptivity is caused to decline.
On the other hand, if the supporting structure is non-metallic material, not only reduce the support strength of supporting structure to
It causes support unstable, and also reduces the texture and beauty and the whole texture and beauty that thereby reduce mobile phone of supporting structure
It sees.
Therefore, it is necessary to a kind of technical solutions for effectively being combined supporting structure with antenna.
Summary of the invention
In order to solve the above-mentioned technical problems, the present invention provides a kind of antenna and wireless receiving circuit, by by metal
The Antenna Design of material be not only can branch do well it is lower normal work but also can work normally in closed state so that
Antenna not only it had been used as when antenna does well in branch but also had been used as supporting structure, and had thus met a variety of demands of mobile phone.
According to an aspect of the invention, there is provided a kind of antenna, be applied in portable terminal, first end with
First antenna input terminal connection in the portable terminal, the antenna operation work in the first operating mode and second
In one of mode, in this first operative mode, the antenna is fitted on the shell of the portable terminal with place
In closed state, and the second end of the antenna is connect with the second antenna input of the portable terminal；And
In the second mode of operation, the shell of the antenna and the portable terminal has the first angle in opening
State.
In one example, in the second mode of operation, the antenna also serves as the portable terminal
Bracket supports the portable terminal.
In one example, first operating mode is printing inverted F shaped antenna operating mode, second operating mode
For monopole antenna operating mode.
It in one example, include first antenna match circuit in the portable terminal, described first day
The first end of lines matching circuit connects the first antenna input terminal in the portable terminal, the first antenna matching electricity
Road has at least one predetermined matching impedance, wherein for predetermined work frequency band, the antenna and at least one predetermined described
It is connected with one of impedance, so that the antenna reaches predetermined strength threshold value in the signal receiving strength of the predetermined work frequency band.
It in one example, further include having the second antenna-matching circuit in the portable terminal, described second
The first end of antenna-matching circuit connects the second antenna input in the portable terminal, second antenna match
The second end of circuit is grounded, and second antenna-matching circuit has at least one predetermined matching impedance, wherein in the antenna
When in the first operating mode, the second end of the antenna is connect with the first end of second antenna-matching circuit, and with
One of at least one described predetermined matching impedance connection, so that the Working mould of the impedance ground of the antenna and the antenna
Formula matches.
According to a further aspect of the invention, a kind of wireless receiving circuit is provided, is applied in portable terminal, packet
Include: antenna is placed on the shell of the portable terminal；First antenna match circuit, first end and the antenna
First end connection and second end connect with the signal processing circuit in the portable terminal；And second antenna
With circuit, second end ground connection, wherein the antenna operation is in one of the first operating mode and the second operating mode, in institute
It states under the first operating mode, the antenna is fitted in be in closed state on the shell of the portable terminal, and
The second end of the antenna is connect with the first end of second antenna-matching circuit；And in the second mode of operation,
The shell of the antenna and the portable terminal has the first angle in the open state.
In one example, in the second mode of operation, the antenna also serves as the portable terminal
Bracket supports the portable terminal.
In one example, first operating mode is printing inverted F shaped antenna operating mode, second operating mode
For monopole antenna operating mode.
In one example, the first antenna match circuit has at least one predetermined matching impedance with by the antenna
It is adjusted at least one predetermined work frequency band, wherein the first antenna match circuit has at least one sub- match circuit,
In every sub- match circuit there is corresponding predetermined matching impedance with by the tested rotating platform to corresponding predetermined work frequency band,
In, for each predetermined work frequency band, the antenna is connected with corresponding sub- match circuit, and is hindered with corresponding predetermined matching
Anti- connection, so that the antenna reaches the predetermined of the predetermined work frequency band in the signal receiving strength of the predetermined work frequency band
Intensity threshold.
In one example, for one of at least one described predetermined work frequency band, in this first operative mode, institute
First antenna match circuit is stated with the first predetermined matching impedance, so that the antenna is in the first operation mode described predetermined
The signal receiving strength of working band reaches the first predetermined strength threshold value, so that the antenna be adjusted in the first operation mode
To the predetermined work frequency band；In the second mode of operation, the first antenna match circuit has the second predetermined matching
Impedance makes a reservation for so that the antenna reaches second in the signal receiving strength of the predetermined work frequency band in the second operation mode
The each predetermined work frequency band of intensity threshold, so that the antenna is adjusted to the predetermined work frequency in the second operation mode
Band.
In one example, in this first operative mode, second antenna-matching circuit provides the antenna
It is grounded matching impedance.
In one example, second antenna-matching circuit has at least one predetermined matching impedance, in the antenna
When in the first operating mode, one of the second end of the antenna and at least one described predetermined matching impedance are connect, to make
The operating mode for obtaining the impedance ground and the antenna of the antenna matches.
In one example, the antenna utilizes at least one predetermined matching provided by the first antenna match circuit
Impedance, for receiving at least one of WiFi signal, GPS signal, BlueTooth signal.
In one example, the antenna covered after being located at the portable terminal or edge on.
Using antenna according to the present invention and wireless receiving circuit, by making antenna under expenditure (opening) state respectively
With under closed state have different circuit connection structures so that antenna under expenditure (openings) state and closed state under
The signal of predetermined work frequency band can be received well, so that antenna both may be used as day under expenditure (opening) state
Line may be used as bracket again.
Other features and advantages of the present invention will be illustrated in the following description, also, partly becomes from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention can be by specification, right
Specifically noted structure is achieved and obtained in claim and attached drawing.
Detailed description of the invention
Attached drawing is used to provide further understanding of the present invention, and constitutes part of specification, with reality of the invention
It applies example to be used to explain the present invention together, not be construed as limiting the invention.In the accompanying drawings:
Fig. 1 illustrates the appearance diagrams for the portable terminal for applying antenna according to an embodiment of the present invention；
Fig. 2 illustrates the circuit block diagram of the Equivalent conjunction of antenna according to an embodiment of the present invention in the first operation mode；
Fig. 3 illustrates the circuit block diagram of the Equivalent conjunction of antenna according to an embodiment of the present invention in the second operation mode；
And
Fig. 4 illustrates the schematic block diagram of wireless receiving circuit according to an embodiment of the present invention.
Specific embodiment
It will be described in detail with reference to the accompanying drawings each embodiment according to the present invention.Here it is to be noted that it in the accompanying drawings,
It assigns identical appended drawing reference to component part substantially with same or like structure and function, and will omit about it
Repeated description.
Show as shown in Figure 1, showing and applying the appearance of the portable terminal of antenna according to an embodiment of the present invention
It is intended to.Specifically, the appearance signal of antenna according to an embodiment of the present invention in the closure state is shown in (A) of Fig. 1
Figure shows appearance diagram when antenna according to an embodiment of the present invention is in (expenditure) state of opening in (B) of Fig. 1.
Antenna according to an embodiment of the present invention can be applied in portable terminal, and the portable terminal can
To be smart phone, tablet computer, personal digital assistant etc..As shown in Figure 1, the first end of antenna according to an embodiment of the present invention
A is connect with the first antenna input terminal A ' in the portable terminal, and the second end B of the as needed antenna can be with
The second antenna input B ' connection in the portable terminal can also be with floating.
Antenna according to an embodiment of the present invention is according to its different conditions, such as opens (expenditure) state or closed state, can
To operate in different operating modes, such as the first operating mode or the second operating mode.In other words, real according to the present invention
The antenna of example is applied according to the positional relationship of itself and the portable terminal, the first operating mode and the second work can be operated in
In one of operation mode.
For example, in this first operative mode, the antenna fit on the shell of the portable terminal with
In closed state, under this closed state, the first end A and the first antenna of the portable terminal of the antenna are defeated
Enter to hold A ' connection, and the second end B of the antenna is connect with the second antenna input B ' of the portable terminal.
On the other hand, for example, in the second mode of operation, the shell of the antenna and the portable terminal
With the first angle in the open state, under this opening state, first end A and the portable terminal of the antenna are set
Standby first antenna input terminal A ' connection, and the second end B of the antenna is floating.
In the second mode of operation, i.e., there is the first folder in the shell of the antenna and the portable terminal
It angle, will be described in the case where in the open state, the antenna is also used as the bracket of the portable terminal
Portable terminal supports, shown in (C) as shown in figure 1.
For example, (C) as shown in figure 1 is shown, the antenna can be arranged in the one end at the back of portable terminal,
In the case that the bracket that the antenna is used as the portable terminal supports the portable terminal, seeing
See that user no longer needs to hold the portable terminal under the application scenarios such as video, browsing webpage, to improve user's body
It tests.
In addition, for example, the portable terminal the other end, such as in the another of the portable terminal
On the back at end or the edge of the other end in the portable terminal, projection device can be arranged, thus described
It is described portable in the case that the bracket that antenna is used as the portable terminal supports the portable terminal
Formula terminal device can project to display content on the projection carrier outside the portable terminal, the projection carrier
Such as it can be on metope, desktop, projection cloth, blank etc..
In addition, for example, the portable terminal the other end, such as in the another of the portable terminal
The front at end can arrange camera, thus the antenna be used as the portable terminal bracket will be described portable
In the case that formula terminal device supports, the camera can shoot the image of the user of the portable terminal,
The portable terminal is held without user.In the case, user advantageously can carry out video calling, video is chatted
The video interactives such as it.
According to embodiments of the present invention, the antenna is metal material, is advantageously covered with protective paint outside the antenna
Or plastic housing.
According to embodiments of the present invention, in the second mode of operation, i.e., the described antenna and the portable terminal
Shell have the first angle in the open state, the antenna can be set to monopole antenna, such as 1/4 wavelength list
Pole sub-antenna, or can according to need and be set as other forms.
In addition, in this first operative mode, i.e., the described antenna is in closed state, since the antenna is in closure
Input impedance sharply declines, if the antenna is still set to monopole antenna, the antenna will be unable to work normally, because
The second end of the antenna in this first operative mode, is passed through ground structure appropriate according to embodiments of the present invention by this
It is connect with the grounding point on the portable terminal, to set printing inverted F shaped antenna (PIFA), annular day for the antenna
Line (Loop) or other respective antennas, to guarantee to can work normally when the antenna is fitted on the portable terminal.
Correspondingly, according to embodiments of the present invention, first operating mode can be printing inverted F shaped antenna operating mode,
Second operating mode can be monopole antenna operating mode.
In order to enable antenna according to an embodiment of the present invention has good signal receiving performance, in the portable terminal
Need to include first antenna match circuit 1 in equipment, as shown in Figures 2 and 3, the first antenna match circuit 1 with it is described
The first end A connection of antenna so as to for the antenna provide matching impedance so as to by the tested rotating platform to wish operate work
Frequency band.For example, the working band can be WiFi frequency band, GPS frequency band or bluetooth (Bluetooth) frequency band.Certainly, originally
Invent without being limited thereto, the working band may be adjusted to other frequency bands.
For example, the first end of the first antenna match circuit 1 connects the first antenna in the portable terminal
Input terminal A ', the first antenna match circuit 1 have at least one predetermined matching impedance with by the tested rotating platform at least
One predetermined work frequency band.
For any predetermined work frequency band, predetermined matching impedance corresponding to the antenna and the predetermined work frequency band connects
It connects, so that the antenna reaches predetermined strength threshold value in the signal receiving strength of the predetermined work frequency band.It can according to need,
Its corresponding predetermined strength threshold value is respectively set for each predetermined work frequency band.
On the other hand, as previously mentioned, in order to enable the antenna can work normally in this first operative mode, institute
It states portable terminal and also needs to include the second antenna-matching circuit 2, as shown in Fig. 2, second antenna-matching circuit 2
It connect with the second end B of the antenna in order to provide ground connection matching impedance appropriate, so that the second end B of the antenna is passed through
Ground structure appropriate is connect with the grounding point on the portable terminal.
For example, the first end of second antenna-matching circuit 2 connects the second antenna in the portable terminal
Input terminal B ', the second end ground connection of second antenna-matching circuit 2, second antenna-matching circuit 2 provide the antenna
Ground connection matching impedance.
Specifically, second antenna-matching circuit has at least one predetermined matching impedance, is in the in the antenna
When one operating mode, one of the second end of the antenna and at least one described predetermined matching impedance are connect, so that described
The impedance ground of antenna and the operating mode of the antenna match.It can according to need, the second antenna match electricity is set
The predetermined matching impedance at least one of road so as to adjust the length and characteristic of ground structure, and makes connecing for the antenna
Ground impedance matches with its input impedance.
Next, wireless receiving circuit according to an embodiment of the present invention will be described with reference to Fig. 4, it is according to an embodiment of the present invention
Wireless receiving circuit can be applied in portable terminal.
As shown in figure 4, the wireless receiving circuit may include antenna, first antenna match circuit 1 and the second antenna
Match circuit 2.
The antenna is placed on the shell of the portable terminal, and including first end A and second end B.Favorably
Ground, the antenna, which can be placed in one end of the back skin of the portable terminal or the antenna, can be placed in institute
It states on an edge of portable terminal surrounding.Advantageously, the antenna can fit in the portable terminal
Shell on can be rotatably opened in closed state or the antenna in order to the portable terminal
Ontology extending direction is at an angle.
Refering to what is shown in Fig. 1, the first antenna input terminal A ' in the first end A of antenna and the portable terminal is even
It connects, the second end B of the antenna as needed can be connect with the second antenna input B ' in the portable terminal
Or it can also be with floating.
The first antenna that the first end of the first antenna match circuit 1 may be used as in the portable terminal is defeated
Enter to hold A ' or is connect with the first antenna input terminal A ' in the portable terminal, therefore, the first antenna matching
The first end of circuit 1 connect with the first end A of the antenna and at the signal in second end and the portable terminal
Manage circuit connection.Here, in order not to obscure technical solution of the present invention, the signal processing circuit is no longer described how to receiving
Radiofrequency signal handled.
The second end of second antenna-matching circuit 2 is grounded, and the first end of second antenna-matching circuit 2
May be used as the second antenna input B ' in the portable terminal or in the portable terminal
Two antenna input B ' connections, therefore, as needed, the second end B of the antenna can be with second antenna-matching circuit 2
First end connection, or can be floating.
According to embodiments of the present invention, the antenna is according to its different conditions, such as opening state or closed state, Ke Yicao
Make in different operating modes, such as the first operating mode or the second operating mode.In other words, according to embodiments of the present invention
Antenna according to the positional relationship of itself and the portable terminal, the first operating mode and the second Working mould can be operated in
In one of formula.
In this first operative mode, the antenna is fitted on the shell of the portable terminal and is closed with being in
Conjunction state, under this closed state, the first end A of the antenna and the first antenna input terminal A ' of the portable terminal
Connection, and the second end B of the antenna is connect with the second antenna input B ' of the portable terminal.
In the second mode of operation, the shell of the antenna and the portable terminal have the first angle with
In the open state, under this opening state, the first end A and the first antenna of the portable terminal of the antenna are defeated
Enter to hold A ' connection, and the second end B of the antenna is floating.
In the second mode of operation, i.e., there is the first folder in the shell of the antenna and the portable terminal
It angle, will be described in the case where in the open state, the antenna is also used as the bracket of the portable terminal
Portable terminal supports, shown in (C) as shown in figure 1.
According to embodiments of the present invention, the antenna is metal material, is advantageously covered with protective paint outside the antenna
Or plastic housing.
According to embodiments of the present invention, in the second mode of operation, i.e., the described antenna and the portable terminal
Shell have the first angle in the open state, the antenna can be set to monopole antenna, such as 1/4 wavelength list
Pole sub-antenna, or can according to need and be set as other forms.
In addition, in this first operative mode, i.e., the described antenna is in closed state, since the antenna is in closure
Input impedance sharply declines, if the antenna is still set to monopole antenna, the antenna will be unable to work normally, because
The second end of the antenna in this first operative mode, is passed through ground structure appropriate according to embodiments of the present invention by this
It is connect with the grounding point on the portable terminal, to set printing inverted F shaped antenna (PIFA), annular day for the antenna
Line (Loop) or other respective antennas, to guarantee to can work normally when the antenna is fitted on the portable terminal.
Correspondingly, according to embodiments of the present invention, first operating mode can be printing inverted F shaped antenna operating mode,
Second operating mode can be monopole antenna operating mode.
In order to enable antenna according to an embodiment of the present invention has good signal receiving performance, in the portable terminal
Need to include first antenna match circuit 1 in equipment, as shown in Figures 2 and 3, the first antenna match circuit 1 with it is described
The first end A connection of antenna so as to for the antenna provide matching impedance so as to by the tested rotating platform to wish operate work
Frequency band.For example, the working band can be WiFi frequency band, GPS frequency band or bluetooth (Bluetooth) frequency band.Certainly, originally
Invent without being limited thereto, the working band may be adjusted to other frequency bands.
For example, the first end of the first antenna match circuit 1 connects the first antenna in the portable terminal
Input terminal A ', the first antenna match circuit 1 have at least one predetermined matching impedance with by the tested rotating platform at least
One predetermined work frequency band.
In wireless receiving circuit according to an embodiment of the present invention, the first antenna match circuit has at least one pre-
Matching impedance is determined with by the tested rotating platform at least one predetermined work frequency band, wherein the first antenna match circuit has
At least one sub- match circuit, wherein every sub- match circuit has corresponding predetermined matching impedance to arrive the tested rotating platform
Corresponding predetermined work frequency band, for each predetermined work frequency band, the antenna connected with corresponding sub- match circuit and with
Corresponding predetermined matching impedance connection, so that the antenna reaches described pre- in the signal receiving strength of the predetermined work frequency band
Determine the predetermined strength threshold value of working band.It can according to need, for each predetermined work frequency band, it is corresponding predetermined strong that it is set
Spend threshold value.
For example, at least one described predetermined work frequency band may include WiFi working band, GPS working band and
At least one of Bluetooth working band, described at least one son corresponding at least one described predetermined work frequency band
Match circuit may include at least one of WiFi match circuit, GPS match circuit and Bluetooth match circuit.Accordingly
Ground, the antenna is using at least one predetermined matching impedance provided by the first antenna match circuit, for receiving WiFi
At least one of signal, GPS signal, BlueTooth signal.
For example, every sub- match circuit has a predetermined matching impedance.Specifically, WiFi match circuit has predetermined
WiFi matching impedance with by the tested rotating platform to the WiFi working band, i.e., so that the antenna the WiFi work frequency
Band has good reception, i.e., the described antenna reaches the WiFi in the signal receiving strength of the WiFi working band
The predetermined strength threshold value of working band；The GPS match circuit has predetermined GPS matching impedance to arrive the tested rotating platform
The GPS working band, i.e., so that the antenna has good reception, i.e., the described antenna in the GPS working band
Reach the predetermined strength threshold value of the GPS working band in the signal receiving strength of the GPS working band；It is described
Bluetooth match circuit has predetermined Bluetooth matching impedance with by the tested rotating platform to the Bluetooth work
Make frequency band, i.e., so that the antenna has good reception in the Bluetooth working band, i.e., the described antenna is in institute
The signal receiving strength for stating Bluetooth working band reaches the predetermined strength threshold value of the Bluetooth working band.
For another example there are two predetermined matching impedances for every sub- match circuit tool.For predetermined work frequency band, described first
Under operating mode, the first antenna match circuit has the first predetermined matching impedance, by the antenna in the first Working mould
The predetermined work frequency band is adjusted under formula, i.e., the described antenna reaches described in the signal receiving strength of the predetermined work frequency band
First predetermined strength threshold value of predetermined work frequency band；In the second mode of operation, the first antenna match circuit has
The antenna is adjusted to the predetermined work frequency band by the second predetermined matching impedance in the second operation mode, i.e., the described day
Line reaches the second predetermined strength threshold value of the predetermined work frequency band in the signal receiving strength of the predetermined work frequency band.It can be with
As needed, the first and second predetermined strength threshold values under two kinds of operating modes are set, and the first and second predetermined strength threshold values can
With identical or different.
Specifically, WiFi match circuit can have two predetermined WiFi matching impedances, wherein when the antenna is in the
The WiFi match circuit can provide the first predetermined WiFi matching impedance when one operation mode, and when the antenna is in the
The WiFi match circuit can provide the second predetermined WiFi matching impedance when two operation modes, so that the antenna is in institute
WiFi working band is stated with good reception, i.e., the described antenna reaches institute in the signal receiving strength of WiFi working band
The predetermined strength threshold value for stating WiFi working band (can be respectively the first predetermined strength threshold value and second under first operator scheme
The second predetermined strength threshold value under operation mode)；The GPS match circuit can have two predetermined GPS matching impedances,
In when the antenna is in first operator scheme the GPS match circuit the first predetermined GPS matching impedance can be provided, and
When the antenna is in second operator scheme, the GPS match circuit can provide the second predetermined GPS matching impedance, to make
Obtaining the antenna has good reception in the GPS working band, i.e., the described antenna connects in the signal of GPS working band
Receiving intensity to reach the predetermined strength threshold value of the GPS working band (can be respectively first predetermined strong under first operator scheme
Spend the second predetermined strength threshold value under threshold value and second operator scheme)；The Bluetooth match circuit can have two in advance
Bluetooth matching impedance is determined, wherein the Bluetooth match circuit can be with when the antenna is in first operator scheme
The first predetermined Bluetooth matching impedance is provided, and Bluetooth described when the antenna is in second operator scheme
The second predetermined Bluetooth matching impedance can be provided with circuit, so that the antenna works in the Bluetooth
Frequency band has good reception, i.e., the described antenna reaches described in the signal receiving strength of Bluetooth working band
Bluetooth working band predetermined strength threshold value (can be respectively the first predetermined strength threshold value under first operator scheme and
The second predetermined strength threshold value under second operator scheme).
In this embodiment, the wireless receiving circuit can also have detection part, be in the to detect the antenna
One operation mode or second operator scheme.The detection part can be contact, elastic slice etc..
Alternatively, every sub- match circuit has multiple predetermined matching impedances.In the case, the portable terminal
In signal processing circuit can be provided according to signal receiving strength when accessing each predetermined matching impedance it is the multiple predetermined
The selection signal of matching impedance, to indicate which predetermined matching impedance should be accessed under current environment.In the wireless receiving circuit
Every sub- match circuit one of the multiple predetermined matching impedance can be selected according to the selection signal.
Preferably, at least one described sub- match circuit in the first antenna match circuit can be connected in parallel simultaneously
To the antenna, so that the antenna can be operated simultaneously at least one described predetermined work frequency band；Or alternatively
One of at least one described sub- match circuit in the first antenna match circuit is connected to the antenna, so that described
Antenna is only operated in a predetermined work frequency band；Or at least one described son in the alternatively described first antenna match circuit
A part (multiple) in match circuit can be parallel-connected to the antenna simultaneously, so that the antenna can be grasped simultaneously
Make multiple predetermined work frequency bands at least one described predetermined work frequency band.
On the other hand, as previously mentioned, in order to enable the antenna can work normally in this first operative mode, institute
It states portable terminal and also needs to include the second antenna-matching circuit 2, as shown in Fig. 2, second antenna-matching circuit 2
It connect with the second end B of the antenna in order to provide ground connection matching impedance appropriate, so that the second end B of the antenna is passed through
Ground structure appropriate is connect with the grounding point on the portable terminal.
For example, the first end of second antenna-matching circuit 2 connects the second antenna in the portable terminal
Input terminal B ', the second end ground connection of second antenna-matching circuit 2, second antenna-matching circuit provide the antenna
It is grounded matching impedance.
Specifically, second antenna-matching circuit has at least one predetermined matching impedance, is in the in the antenna
When one operating mode, one of the second end of the antenna and at least one described predetermined matching impedance are connect, so that described
The impedance ground of antenna and the operating mode of the antenna match.It can according to need, the second antenna match electricity is set
The predetermined matching impedance at least one of road so as to adjust the length and characteristic of ground structure, and makes connecing for the antenna
Ground impedance matches with its input impedance.
Antenna and wireless receiving circuit according to an embodiment of the present invention, by making antenna in expenditure (opening) state respectively
With different circuit connection structures under lower and closed state, so that antenna is under expenditure (opening) state and closed state
The signal of predetermined work frequency band can be received well down, so that antenna both may be used as under expenditure (opening) state
Antenna may be used as bracket again.
Through the above description of the embodiments, those skilled in the art can be understood that the present invention can be by
It is realized in the mode of software plus required hardware platform, naturally it is also possible to all be implemented by hardware.
Each embodiment of the invention has been described in detail above.However, it should be appreciated by those skilled in the art that not taking off
In the case where from the principle and spirit of the invention, these embodiments can be carry out various modifications, combination or sub-portfolio, and in this way
Modification should fall within the scope of the present invention.
Claims (11)
1. a kind of antenna is applied in portable terminal, first day in first end and the portable terminal
Line input terminal connection, the antenna operation in one of the first operating mode and the second operating mode,
In this first operative mode, the antenna fits on the shell of the portable terminal in closed form
State, and the second end of the antenna is connect with the second antenna input of the portable terminal；And
In the second mode of operation, the second end of the antenna is floating, and the antenna is set with the portable terminal
Standby shell has the first angle in the open state；
It wherein, further include having the second antenna-matching circuit in the portable terminal, second antenna-matching circuit
First end connect the second antenna input in the portable terminal, the second end of second antenna-matching circuit
Ground connection, second antenna-matching circuit have at least one predetermined matching impedance, wherein
When the antenna is in the first operating mode, the first of the second end of the antenna and second antenna-matching circuit
End connection, and connect with one of at least one predetermined matching impedance, so that the impedance ground of the antenna and institute
The operating mode for stating antenna matches.
2. antenna as described in claim 1, wherein in the second mode of operation, the antenna also serves as described portable
The bracket of formula terminal device, the portable terminal is supported.
3. antenna as described in claim 1, wherein first operating mode is printing inverted F shaped antenna operating mode, described
Second operating mode is monopole antenna operating mode.
4. antenna as described in claim 1, wherein include first antenna matching electricity in the portable terminal
Road, the first end of the first antenna match circuit connects the first antenna input terminal in the portable terminal, described
First antenna match circuit has at least one predetermined matching impedance, wherein
For predetermined work frequency band, one of the antenna and at least one described predetermined matching impedance are connect, thus the antenna
Reach predetermined strength threshold value in the signal receiving strength of the predetermined work frequency band.
5. a kind of wireless receiving circuit is applied in portable terminal, comprising:
Antenna is placed on the shell of the portable terminal；
First antenna match circuit, first end is connect with the first end of the antenna and second end and the portable terminal
Signal processing circuit connection in equipment；And
Second antenna-matching circuit, second end ground connection,
Wherein, the antenna operation is in one of the first operating mode and the second operating mode,
In this first operative mode, the antenna fits on the shell of the portable terminal in closed form
State, and the second end of the antenna is connect with the first end of second antenna-matching circuit, and predetermined at least one
One of matching impedance connection, so that the impedance ground of the antenna and the operating mode of the antenna match；And
In the second mode of operation, the second end of the antenna is floating, and the antenna is set with the portable terminal
Standby shell has the first angle in the open state；
Wherein, in this first operative mode, second antenna-matching circuit provides the ground connection matching impedance of the antenna,
Second antenna-matching circuit has at least one predetermined matching impedance, is in the first operating mode in the antenna
When, one of the second end of the antenna and at least one described predetermined matching impedance are connect, so that the ground connection of the antenna
Impedance and the operating mode of the antenna match.
6. wireless receiving circuit as claimed in claim 5, wherein in the second mode of operation, the antenna also serves as
The bracket of the portable terminal, the portable terminal is supported.
7. wireless receiving circuit as claimed in claim 5, wherein first operating mode is printing inverted F shaped antenna work
Mode, second operating mode are monopole antenna operating mode.
8. wireless receiving circuit as claimed in claim 5, wherein
The first antenna match circuit has at least one predetermined matching impedance with the tested rotating platform is pre- at least one
Working band is determined, wherein the first antenna match circuit has at least one sub- match circuit, wherein every sub- match circuit
With corresponding predetermined matching impedance with by the tested rotating platform to corresponding predetermined work frequency band,
Wherein, for each predetermined work frequency band, the antenna is connected with corresponding sub- match circuit, and is made a reservation for corresponding
Matching impedance connection, so that the antenna reaches the predetermined work frequency band in the signal receiving strength of the predetermined work frequency band
Predetermined strength threshold value.
9. wireless receiving circuit as claimed in claim 5, wherein one of at least one predetermined work frequency band for described in,
In this first operative mode, the first antenna match circuit has the first predetermined matching impedance, so that the day
Line reaches the first predetermined strength threshold value in the signal receiving strength of the predetermined work frequency band in the first operation mode；
In the second mode of operation, the first antenna match circuit has the second predetermined matching impedance, so that the day
Line reaches the second predetermined strength threshold value in the signal receiving strength of the predetermined work frequency band in the second operation mode.
10. wireless receiving circuit as claimed in claim 8, wherein the antenna utilizes the first antenna match circuit institute
At least one predetermined matching impedance provided, for receiving WiFi signal, GPS signal, at least one in BlueTooth signal
It is a.
11. wireless receiving circuit as claimed in claim 5, wherein after the antenna is located at the portable terminal
Cover or edge on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310744008.4A CN104752811B (en) | 2013-12-30 | 2013-12-30 | Antenna and wireless receiving circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310744008.4A CN104752811B (en) | 2013-12-30 | 2013-12-30 | Antenna and wireless receiving circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104752811A CN104752811A (en) | 2015-07-01 |
| CN104752811B true CN104752811B (en) | 2019-03-29 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310744008.4A Active CN104752811B (en) | 2013-12-30 | 2013-12-30 | Antenna and wireless receiving circuit |
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| Country | Link |
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| CN (1) | CN104752811B (en) |
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| CN201054384Y (en) * | 2007-02-15 | 2008-04-30 | 陈训勤 | Fittings for electronic device |
| CN202309776U (en) * | 2011-04-25 | 2012-07-04 | 中兴通讯股份有限公司 | Wireless communication terminal battery case and wireless communication terminal |
| CN203477787U (en) * | 2013-08-26 | 2014-03-12 | 联想(北京)有限公司 | Adjustable support and electronic device |
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| US5929814A (en) * | 1995-07-05 | 1999-07-27 | Motorola, Inc. | Antenna assembly and communications device |
| JP3634202B2 (en) * | 1999-08-17 | 2005-03-30 | 株式会社ケンウッド | Electronic equipment with antenna |
| CN1893176A (en) * | 2005-07-08 | 2007-01-10 | 三星电子株式会社 | Antenna device using support for portable terminal |
| CN101911382A (en) * | 2008-01-10 | 2010-12-08 | 松下电器产业株式会社 | Portable radio device |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN104752811A (en) | 2015-07-01 |
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