CN1705161A - Broadcast receiver - Google Patents
Broadcast receiver Download PDFInfo
- Publication number
- CN1705161A CN1705161A CN 200510074220 CN200510074220A CN1705161A CN 1705161 A CN1705161 A CN 1705161A CN 200510074220 CN200510074220 CN 200510074220 CN 200510074220 A CN200510074220 A CN 200510074220A CN 1705161 A CN1705161 A CN 1705161A
- Authority
- CN
- China
- Prior art keywords
- shell
- antenna
- antenna oscillator
- oscillator
- shells
- Prior art date
- 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.)
- Pending
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/06—Details
- H01Q9/14—Length of element or elements adjustable
- H01Q9/145—Length of element or elements adjustable by varying the electrical length
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/08—Means for collapsing antennas or parts thereof
- H01Q1/084—Pivotable antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Support Of Aerials (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Details Of Aerials (AREA)
Abstract
The broadcast receiver is provided with: a housing 12; a first antenna element 16a arranged in the housing 12 in a loop form; a dipole antenna 16 comprising the first antenna element 16a and a second antenna element 16b located in the housing 12 side by side to the first antenna element 16a so that a direction of a current flowing through the second antenna element 16b is the same as that of a current flowing through the first antenna element 16a; and a reception circuit 17 for receiving a broadcast signal received by the dipole antenna 16.
Description
Technical field
The present invention for example relates to a kind of being adapted at and uses in the portable broadcasting receiver etc. so that receive the broadcasting receiver of received terrestrial digital broadcasting.
As everyone knows, in recent years, received terrestrial digital broadcasting has been dropped into practical application.This received terrestrial digital broadcasting mainly provides the broadcasting of low data rate to mobile object, just so-called mobile broadcast, one section broadcasting, and described mobile object is all in this way as service object's portable broadcast receiving apparatus.
Incidentally, described received terrestrial digital broadcasting uses and compares the broadcasting frequency that frequency is lower and wavelength is longer with the mobile phone frequency.Therefore, the broadcast receiving apparatus that is used to receive mobile broadcast requires effectively to receive the measure of the electric wave with long wavelength in motion.
KOKAI 2002-299933 Japanese patent application and the 6th, 614, No. 401 U.S. Patent Publications such structure, it realizes widening of miniaturization and frequency by nothing feedback (non-feed) radiation electrode that is provided for generating dual-resonant behavior for the electrode structure of antenna, and the terrestrial components of the installation substrate of described antenna is also carried out antenna operation by being encouraged by the antenna operation of feed radiation electrode.
Yet these two pieces of patent documentations all center on mobile phone and are described, and are not described and there be to center on the measure that is specially adapted to receive with the frequency lower than mobile phone frequency mobile broadcast at all.
Summary of the invention
In view of foreground, one object of the present invention is to provide a kind of broadcasting receiver, and it is under the situation that does not reduce miniaturization even can keep high receptivity with low frequency.
According to an aspect of the present invention, provide a kind of broadcasting receiver, having comprised: shell; The dipole antenna of forming by first antenna oscillator and second antenna oscillator, wherein said first antenna oscillator in the enclosure portion with the loop shape setting, described second antenna oscillator and first antenna oscillator be arranged in parallel, so as to make direction that electric current in the shell flows become with first antenna oscillator in identical; And receiving circuit, be provided with the broadcast singal that receives via dipole antenna.
Description of drawings
Fig. 1 is the perspective view that the outward appearance of the first embodiment of the present invention and explanation broadcast receiving apparatus is shown;
Fig. 2 is the view of dipole antenna layout of broadcast receiving apparatus of first embodiment of explanation first invention;
Fig. 3 is the perspective view of the outward appearance of the broadcast receiving apparatus after the explanation second embodiment of the present invention and explanation fold;
Fig. 4 is the perspective view of outward appearance of broadcast receiving apparatus of the expansion of explanation second embodiment of the invention;
Fig. 5 is the view of dipole antenna layout of the broadcast receiving apparatus of explanation second embodiment of the invention;
Fig. 6 is the view that the dipole antenna layout of the third embodiment of the present invention and explanation broadcast receiving apparatus is shown;
Fig. 7 is the block diagram of explanation by the antenna length of the broadcast receiving apparatus of use match circuit shortening third embodiment of the invention;
Fig. 8 be the explanation broadcast receiving apparatus of proofreading and correct third embodiment of the invention open angle with the block diagram of resonance frequency deviation;
Fig. 9 is the perspective view of example of removable shape of the broadcast receiving apparatus of explanation third embodiment of the invention;
Figure 10 is the perspective view of another example of removable shape of the broadcast receiving apparatus of explanation third embodiment of the invention;
Figure 11 is the perspective view of fork one example of removable shape of the broadcast receiving apparatus of explanation third embodiment of the invention; And
Figure 12 is the perspective view of another example of removable shape of the broadcast receiving apparatus of explanation third embodiment of the invention.
Embodiment
After this, describe embodiments of the invention with reference to the accompanying drawings in detail.Fig. 1 shows the outward appearance of the broadcast receiving apparatus 11 that will illustrate in first embodiment of the invention.Described receiving terminal 11 has portable enclosure 12, and it has the shape of thin box body.
Have display unit 13 and operating unit 14 on the horizontal component 12a of the shell 12 of receiving terminal 11, and have the connector 15 that is used for voice output on the side 12b of shell 12, so that connect headphone etc.
Herein, as shown in Figure 2, described receiving terminal 11 comes receiving broadcast signal via the dipole antenna 16 that is merged in the shell 12, and carries out tuning, demodulation process etc. by the signal that is received being offered receiving circuit 17.
In this case, the first antenna oscillator 16a that forms described dipole antenna 16 is provided with like this, so that the end of the first antenna oscillator 16a is linked to each other with described receiving circuit 17, its other end forms the loop along the inwall of shell 12.
According to following mode the second antenna oscillator 16b of composition dipole antenna 16 and the first antenna oscillator 16a are be arranged in parallel, described mode is: the end of the second antenna oscillator 16b links to each other with described receiving circuit 17, and its other end forms the loop along the direction opposite with the first antenna oscillator 16a.
Be set up with loop shape along shell 12 inwalls owing to form the first and second antenna oscillator 16a, the 16b of dipole antenna 16, therefore described dipole antenna 16 can make the length of antenna longer, and is enough to respond low frequency, and can not damage miniaturization.
The first and second antenna oscillator 16a, 16b are provided with in parallel with each other, so that form the opposite loop of direction each other.Thus, in the parallel portion of the first and second antenna oscillator 16a, 16b, electric current flows through along identical direction, shown in arrow " a ", and make increase each other, thereby dipole antenna 16 can strengthen its receptivity.
Next, the second embodiment of the present invention will be described.Fig. 3 and Fig. 4 show the outward appearance of the broadcast receiving apparatus 18 that will explain in a second embodiment.Described receiving terminal 18 rotatably connects two shells 19,20 by linkage 21, and described shell has the shape of thin box body.
In this case, the position that described receiving terminal 18 can obtain to be folded, wherein shell 19 and shell 20 overlap each other, as shown in Figure 3, and is center rotational shell 19,20 by linkage 21 with the Y-axis, the position that can obtain to launch, as shown in Figure 4.
When being in the position that is folded, to face on the surperficial 19a of shell 20, shell 19 is provided with display unit 22.In addition, in the position that is folded, facing on the surperficial 20a of shell 19, shell 20 is provided with operating unit 23.A side 20b of shell 20 also is provided with the connector 24 that is used for voice output, so that connect headphone etc.
As shown in Figure 5, described receiving terminal 18 comes receiving broadcast signal via the dipole antenna 25 that is merged in the shell 19, and carries out tuning, demodulation process etc. by the signal that is received being offered receiving circuit 26.
In this case, dipole antenna 25 is provided with like this, and an end of wherein forming the first antenna oscillator 25a of dipole antenna 25 links to each other with receiving circuit 26, and its other end is along the inwall formation loop shape of shell 19.
The second antenna oscillator 25b and the first antenna oscillator 25a that form dipole antenna 25 are be arranged in parallel, so that the end of antenna oscillator 25b links to each other with described receiving circuit 26, and its other end forms the loop along the direction opposite with the first antenna oscillator 25a.
Be set up with loop shape along the inwall of shell 19 owing to form the first and second antenna oscillator 25a, the 25b of dipole antenna 25, therefore described dipole antenna 25 can make the length of antenna longer, and is enough to respond low frequency, and can not damage miniaturization.
The first and second antenna oscillator 25a, 25b are provided with in parallel with each other, so that form the opposite loop of direction each other.Thus, in the parallel portion of the first and second antenna oscillator 25a, 26b, electric current flows along identical direction, shown in arrow " b ", and make increase each other, thereby dipole antenna 25 can strengthen its receptivity.
Obviously, can in shell 20, provide dipole antenna 25 and receiving circuit 26.
Fig. 6 shows the third embodiment of the present invention.Referring now to Fig. 6, wherein with Fig. 5 in the same element be presented identical reference marker, be provided with the first antenna oscillator 25a so that form the loop along the inwall of shell 20, the receiving circuit 26 of the described first antenna oscillator 25a from incorporate shell 19 into stretches out.Be provided with the second antenna oscillator 25b that stretches out from described receiving circuit 26, so that form the loop along the inwall of shell 19.
As shown in figure 11, by being shell 20 center Rotate 180 degree with the X-axis from the expanded position shown in Fig. 4, the display unit 22 of shell 19 and the operating unit 23 of shell 19 (not shown among Figure 11) can be faced each other in the opposite direction.Two shells 19,20 from then on open position fold.
Rotatably connecting by linkage 21 under the situation of two shells 19,20, shell 19,20 can come along a plurality of direction rotations by the number of axle that increases linkage 21.For example, shell 20 can be from expanded position (wherein, with the Y-axis is that the center is shell 20 Rotate 180 degree, as shown in Figure 4) rotate to such position, be that the center is revolved and turn 90 degrees with the X-axis wherein shell 20, as shown in Figure 9, and can rotate to such position, be that the center is revolved shell 20 and turn 90 degrees with the Z axle wherein.
In addition, as shown in figure 12, the shell 20 so long distance of its thickness of sliding from expanded position shown in Figure 4 along Z-direction, and be center Rotate 180 degree from sliding position with the Z axle.Thus, shell 19,20 can be overlapping, so as the surface that makes the surperficial 19a of its display unit that is provided with shell 19 22 and its opposite side with and the surperficial 20a that is provided with the operating unit 23 of shell 20 face with each other.
Extremely shown in Figure 12 as Fig. 9, if shell 19,20 is configured so that to obtain various rotatable positions, so sometimes the first and second antenna oscillator 25a, the 25b that are in the folding position are not oppositely be arranged in parallel each other, but they are be arranged in parallel along same direction.
In this case, the first and second antenna oscillator 25a, 25b part place parallel to each other can't realize the effect that electric current flows and strengthens each other in the other direction therein.
Thus, need to realize a kind of like this structure, by this structure, the first and second antenna oscillator 25a, 25b can't be folded, so that make them by the parallel placement in the loop with equidirectional, and be convenient to the user and make marks and folding shell 19,20, so that each mark matches each other in the side of shell 19,20.
As mentioned above, by the first and second antenna oscillator 25a, the 25b that forms dipole antenna 25 is set in two shells, 19,20 inside of rotatable connection respectively, can make each shell 19,20 become thinner.
In the position that two shells 19,20 are folded, the first and second antenna oscillator 25a, 25b are arranged parallel to each other, and oppositely form the loop simultaneously each other.Therefore, at the first and second antenna oscillator 25a, 26b part place parallel to each other, electric current flows along identical direction, and makes increase each other, thereby dipole antenna 25 can strengthen its receptivity.
Being set in the length of the first and second antenna oscillator 25a, 25b under 1/4 the situation of received signal wavelength, can be that dipole antenna 25 obtains the most useful gain.
Yet, as shown in Figure 7, even make the length of the first and second antenna oscillator 25a, 25b be set to such an extent that be shorter than λ/4 by insert the match circuit of being made up of coil etc. 27 between dipole antenna 25 and receiving circuit 26, it also can obtain to be equivalent to have the performance that total length is the dipole antenna of λ/2.The fact that in first and second embodiment, also exists equally.
The first and second antenna oscillator 25a, the 25b that form dipole antenna 25 are separately positioned on the inside of two shells 19,20 of rotatable connection.Thus, can be by changing the dipole antenna 25 that the open angle that is formed by shell 19 and 20 forms V-arrangement.
For the dipole antenna 25 of V-arrangement, it is well-known can strengthening directivity along the openend direction of V-arrangement.Therefore, make the V-arrangement open end to the electric wave input direction by regulating the open angle that is formed by shell 19 and 20, described dipole antenna 25 can obtain higher receptivity.
Under the situation that as shown in Figure 6 open angle that is formed by shell 19 and 20 is set at 180 degree, that is, the first and second antenna oscillator 25a, 25b are being placed under the state of straight line, normally set dipole antenna 25 and realize coupling.
Whereby, change and form under the situation of V-dipole aerial 25, can improve receptivity by proofreading and correct the deviation that changes in the resonance frequency that causes by open angle at the open angle that forms by shell 19 and 20.
Fig. 8 shows the example of the device that is used to proofread and correct the resonance frequency deviation that is produced by forming of V-dipole aerial 25.That is to say, described match circuit 29 is by the testing result control match circuit 29 based on angle detector 28, proofread and correct the deviation of the resonance frequency of the broadcast singal that receives at dipole antenna 25 places, and the signal after receiving circuit 26 provides correction, wherein said angle detector 28 is used to detect the open angle of dipole antenna 25.
Described match circuit 29 for example comprises the variable coil that is connected in series, and can change the inductance of variable coil, the deviation of coming correcting resonance frequency by the open angle in response to dipole antenna 25.
More particularly, when realizing coupling in the layout state that is in straight line at the first and second antenna oscillator 25a, 25b, along with the open angle that is formed by the first and second antenna oscillator 25a and 25b becomes narrow more from matched position, it is high more that resonance frequency becomes.
Whereby, when the open angle that is formed by the first and second antenna oscillator 25a and 25b becomes narrow, the deviation that described match circuit 29 can come correcting resonance frequency by the inductance that increases variable coil.
With regard to angle detector 28, for example change the open angle that forms by shell 19 and 20 step by step, can envision method which of detection is current setting in step, allow swept resistance etc. change resistance value and detect the method for its resistance value etc. in response to the open angle that forms by shell 19 and 20 by spending in the scopes of 180 degree 0.
Match circuit 29 shown in match circuit shown in Fig. 7 and Fig. 8 can be shared.
Do not plan the present invention is confined to specific embodiment described herein and without any change, and under the situation that does not deviate from the spirit and scope of the present invention, can change form of the present invention by changing element.Can realize variant of the present invention by suitably making up among the embodiment described herein disclosed a plurality of element.For example, preferably, can from the whole element shown in the described embodiment, remove some element.In addition, preferably, suitably make up the element relevant with different embodiment.
Claims (9)
1. broadcasting receiver is characterized in that comprising:
Shell (12,19,20);
By the first antenna oscillator (16a, 25a) with second antenna oscillator (16b, 25b) dipole antenna of Zu Chenging (16,25), wherein said first antenna oscillator is arranged on shell (12 according to loop shape, 19,20) inside, described second antenna oscillator is parallel with first antenna oscillator, so that make shell (12, the direction that electric current flows 19,20) and first antenna oscillator (16a, sense of current 25a) is identical; And
Receiving circuit (17,26) will be provided the broadcast singal that receives via dipole antenna (16,25).
2. broadcasting receiver as claimed in claim 1 is characterized in that, is provided with display unit (13,22), operating unit (14,23) and is used for the terminal (15,24) of voice output in shell (12,19,20).
3. broadcasting receiver as claimed in claim 1 is characterized in that,
Shell (19,20) comprises first and second shells (19,20) of rotatable connection, and
In first shell (19), be provided with described first and second antenna oscillators (25a, 25b).
4. broadcasting receiver as claimed in claim 1 is characterized in that,
Shell (19,20) comprises first and second shells (19,20) of rotatable connection, and first and second shells (19,20) can be positioned as the position that shell (19,20) overlaps each other, and
First antenna oscillator (25a) is set in first shell (19), and second antenna oscillator (25b) is set at the inside of second shell (20), so that at first and second shells (19,20) identical in the folded position, the direction that electric current flows in second antenna oscillator (25b) and first antenna oscillator (25a).
5. as claim 3 or 4 described broadcasting receivers, it is characterized in that,
In one of them of first or second shell (19,20), display unit (22) is set, and in another setting operation unit (23).
6. as claim 3 or 4 described broadcasting receivers, it is characterized in that,
First and second shells (19,20) can rotatably support around a plurality of quilts as the center respectively.
7. as claim 3 or 4 described broadcasting receivers, it is characterized in that also comprising:
Match circuit (27) is used for shortening first and second antenna oscillators (25a, length 26b) of forming dipole antenna (25).
8. broadcasting receiver as claimed in claim 4 is characterized in that, also comprises:
Angle testing circuit (28) is used for detecting the open angle that is formed by first antenna oscillator (25a) and second antenna oscillator (25b); And
Match circuit (29) is used for proofreading and correct deviation from the resonance frequency of dipole antenna (25) matching status based on the testing result of angle testing circuit (28).
9. broadcasting receiver as claimed in claim 1 is characterized in that,
Described dipole antenna (16,25) is set so that in response to the reception of mobile broadcast.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004162413 | 2004-05-31 | ||
| JP2004162413A JP2005347882A (en) | 2004-05-31 | 2004-05-31 | Broadcast receiver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1705161A true CN1705161A (en) | 2005-12-07 |
Family
ID=34940007
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510074220 Pending CN1705161A (en) | 2004-05-31 | 2005-05-31 | Broadcast receiver |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1603189A1 (en) |
| JP (1) | JP2005347882A (en) |
| CN (1) | CN1705161A (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008117456A1 (en) * | 2007-03-27 | 2008-10-02 | Fujitsu Limited | Image display and electronic apparatus |
| JP5454683B2 (en) | 2010-06-10 | 2014-03-26 | パナソニック株式会社 | Antenna device and display device |
| US8766871B2 (en) | 2010-07-06 | 2014-07-01 | Panasonic Corporation | Antenna apparatus and display apparatus |
| WO2012030010A1 (en) * | 2010-09-03 | 2012-03-08 | 엑스지 솔루션스 엘엘씨 | Antenna booster case for increasing transmission and reception sensitivity of a mobile device |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5561437A (en) * | 1994-09-15 | 1996-10-01 | Motorola, Inc. | Two position fold-over dipole antenna |
| US5649306A (en) * | 1994-09-16 | 1997-07-15 | Motorola, Inc. | Portable radio housing incorporating diversity antenna structure |
| US6011519A (en) * | 1998-11-11 | 2000-01-04 | Ericsson, Inc. | Dipole antenna configuration for mobile terminal |
| WO2001052445A1 (en) * | 2000-01-11 | 2001-07-19 | Mitsubishi Denki Kabushiki Kaisha | Mobile radio unit |
| EP1296407A4 (en) * | 2000-06-12 | 2005-03-09 | Mitsubishi Electric Corp | Portable radio unit |
-
2004
- 2004-05-31 JP JP2004162413A patent/JP2005347882A/en not_active Withdrawn
-
2005
- 2005-05-30 EP EP05104593A patent/EP1603189A1/en not_active Withdrawn
- 2005-05-31 CN CN 200510074220 patent/CN1705161A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| EP1603189A1 (en) | 2005-12-07 |
| JP2005347882A (en) | 2005-12-15 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |