CN103117453A - Double-monopole mobile phone antenna - Google Patents
Double-monopole mobile phone antenna Download PDFInfo
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- CN103117453A CN103117453A CN2013100533478A CN201310053347A CN103117453A CN 103117453 A CN103117453 A CN 103117453A CN 2013100533478 A CN2013100533478 A CN 2013100533478A CN 201310053347 A CN201310053347 A CN 201310053347A CN 103117453 A CN103117453 A CN 103117453A
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Abstract
A double-monopole mobile phone antenna comprises a first radiation module and a second radiation module which are arranged on a printed circuit board side by side. The first radiation module comprises a high-frequency radiation unit, a low-frequency radiation unit and a feeding point, wherein the high-frequency radiation unit is arranged above the low-frequency radiation unit and electrically connected with the low-frequency radiation unit, and the feeding point is electrically connected with the low-frequency radiation unit. The second radiation module comprises a sub-high-frequency radiation unit, a sub-low-frequency radiation unit and a grounding point, wherein the sub-high-frequency radiation unit is arranged above the sub-low-frequency radiation unit and electrically connected with the sub-low-frequency radiation unit, and the grounding point is electrically connected with the sub-low-frequency radiation unit. The double-monopole mobile phone antenna has the advantages of being capable of widening work frequency bandwidth, reasonable in integral structure and simple in integral structure, facilitating volume miniaturization, reducing occupied mobile phone space, and being capable of embodying economic cheapness and enabling a final mobile phone terminal to meet the DTIA/FA authentication requirements.
Description
Technical field
The present invention relates to a kind of antenna for mobile phone, especially relate to a kind of pair of monopolar handpiece antenna.
Background technology
In recent years along with the progress of wireless communication technique, the application of personalized wireless communication tool such as mobile phone is quite universal, and in order to reach purpose attractive in appearance and easy to carry, the mobile phone volume is dwindled gradually, thereby the entire area of antenna and/or volume are developed towards trend toward miniaturization.In order to possess good transmitting-receiving signal quality, antenna for mobile phone adopts linearly polarized antenna such as the unipole antenna (Monopole Antenna) of isotropic directivity radiation pattern and planar inverted F-shape antenna mostly, and (english abbreviation is: PIFA) and G antenna etc.This antenna has the radiation pattern of approximate isotropic directivity, and has characteristics simple in structure, easy and that substrate is integrated and cost of manufacture is cheap.But, the puzzlement that the multi-frequency band mobile phone one pole in prior art or PIFA antenna ubiquity bandwidth are difficult to meet design requirement.
One of mainstream technology of antenna for mobile phone is Monopole and PIFA (Planar Inverted F type Antenna) at present.several years ago, Motorola proposed FICA antenna (Folded Inverted Conformal Antenna), but FICA is volume production on extremely limited a few money mobile phones only, the design aim of FICA is in order to form double resonance at high frequency output, one is directly to be produced by the band that encircles interior high frequency, another one is 1/2 wavelength generation by ring, the antenna of this structure main feature in radiative process concentrates on the antenna place, plank participates in the ratio less of radiation, and the frequency-doubled effect due to symmetrical loop, disturbed the current trend of plank itself, (english abbreviation is SAR so it is in the process head absorptivity, Specific Absorption Rate) and the HAC(english abbreviation English full name is:: Hearing Aid Compatibility) there is the advantage of uniqueness the aspect.
How to make the low frequency bandwidth of antenna for mobile phone wider be all the time design in the industry focus that the personage pays close attention to and always the phase get and have breakthrough, but be showed no all corresponding technology enlightenments that has in disclosed patent and non-patent literature up to now.
Under the prerequisite that antenna performance ensures, initial antenna (Monopole, PIFA or FICA) generally is included as 2 to 3 resonance, and double frequency or three-frequency antenna comprise GSM900, DCS1800, PCS1900; Resonance of its medium and low frequency comprises GSM900, GSM850, and resonance of high frequency comprises DCS1800, PCS1900; And under many circumstances because low frequency only has a resonance, so antenna performance can not reach the OTA test index; Such as in testing GSM 900, easily make the TIS of the TRP of 975 channels or 124 channels can not be simultaneously up to standard.
In view of above-mentioned prior art, the applicant has done useful design, and technical scheme described below produces under this background.
Summary of the invention
Task of the present invention is to provide a kind of and not only can formed double resonance but also can be simultaneously form double resonance and use remarkable expansion operational frequency bandwidth, be conducive to embody miniaturization and use to save and take the mobile phone space and be of value to and reduce design cost and use and ensure relatively cheap two monopolar handpiece antennas at high frequency at low frequency.
Task of the present invention is completed like this, and a kind of pair of monopolar handpiece antenna comprises the first Radiation Module and the second Radiation Module that are arranged side by side each other on printed circuit board;
Described the first Radiation Module comprises high frequency radiation unit, low frequency radiation unit and distributing point, and the high frequency radiation unit is located at the top of low frequency radiation unit and is electrically connected to the low frequency radiation unit, and described distributing point is electrically connected to the low frequency radiation unit;
Described the second Radiation Module comprises time high frequency radiation unit, infra-low frequency radiating element and earth point, described time the high frequency radiation unit is located at infra-low frequency radiating element top and is electrically connected to the infra-low frequency radiating element, and described earth point is electrically connected to the infra-low frequency radiating element.
In another specific embodiment of the present invention, at the middle part of described high frequency radiation unit and the direction towards described low frequency radiation unit consist of one first lug boss arranged, maintain the first spacing between this first lug boss and low frequency radiation unit.
In another specific embodiment of the present invention, described the first spacing is of a size of 0.05-0.5 ㎝.
In another specific embodiment of the present invention, described the first spacing is of a size of 0.2-0.3 ㎝.
Also have a specific embodiment of the present invention, consisting of at the middle part of described high frequency radiation unit and towards the direction of described infra-low frequency radiating element has one second lug boss, maintains the second spacing between this second lug boss and infra-low frequency radiating element.
More of the present invention and in specific embodiment, described the second spacing is of a size of 0.05-0.5 ㎝.
In of the present invention and then specific embodiment, described the second spacing is of a size of 0.2-0.3 ㎝.
Technical scheme provided by the invention forms down two monopolar handpiece antennas of folding due to the structure with two monopolar handpiece antennas, and low frequency can form double resonance, and the high frequency while also forms double resonance, thereby can widen operational frequency bandwidth; Due to reasonable integral structure, thereby favourable volume miniaturization, taking the mobile phone space reduced; Because overall structure is simple, thereby can embody relatively cheap; Can take into account TRP and TIS owing to testing for OTA, thereby can make final mobile phone terminal be easy to reach the DTIA/FA authentication requesting.
Description of drawings
Fig. 1 is the embodiments of the invention structure chart.
Fig. 2 is the schematic diagram that structure shown in Figure 1 forms four antenna resonances.
Embodiment
See also Fig. 1, provided and be arranged at printed circuit board 1(PCB) on the first Radiation Module 2 and one second Radiation Module 3, the first Radiation Module 2 and the second Radiation Module 3 are in state side by side each other on printed circuit board 1, overall structure shows as down the two monopolar handpiece antennas of folding.The first Radiation Module 2 comprises high frequency radiation unit 21, low frequency radiation unit 22 and distributing point 23, and high frequency radiation unit 21 is located at the top of low frequency radiation unit 22 and is electrically connected to low frequency radiation unit 22, and distributing point 23 is electrically connected to low frequency radiation unit 22; The second Radiation Module 3 comprises time high frequency radiation unit 31, infra-low frequency radiating element 32 and earth point 33, inferior high frequency radiation unit 31 is located at infra-low frequency radiating element 32 tops and is electrically connected to infra-low frequency radiating element 32, and earth point 33 is electrically connected to infra-low frequency radiating element 32.
The middle part of 21 length direction consists of in aforesaid high frequency radiation unit one first lug boss 211, the protrusion direction of this first lug boss 211 is 22 length direction (also can claim long side direction) towards the low frequency radiation unit, and maintain the first interval S 1 between this first lug boss 211 and low frequency radiation unit 22, this first interval S 1 also can be described as the first beeline.Preferably, the size of the first interval S 1 i.e. distance is 0.05-0.5 ㎝, is 0.05-0.3 ㎝ preferably, is 0.05-0.1 ㎝ better, and it is 0.5-1 ㎜ that the present embodiment is selected 0.05-0.1 ㎝.
The middle part of the length direction of aforesaid high frequency radiation unit 31 consists of one second lug boss 311, the protrusion direction of this second lug boss 311 is towards the length direction (also can claim long side direction) of infra-low frequency radiating element 32, and maintain the second interval S 2 between this second lug boss 311 and infra-low frequency radiating element 32, this second interval S 2 also can be described as the second beeline, and the concrete size of this second interval S 2 is as the description to the first interval S 1.
Change the first interval S 1 and second interval S 2 these two parameters all can make the resonance of low frequency part change, and Changing Pattern is: when the first interval S 1 increases, two resonance couplings of low frequency part better, but the low frequency bandwidth reduces gradually; When the second interval S 2 increased, the bandwidth of low frequency increased relatively, thereby can mate the low frequency that is met requirement with the adjusting of the first interval S 1.
See also Fig. 2, because the present invention forms the PIDA antenna of operational frequency bandwidth expansion at double by the PIFA antenna of two mirror images in conjunction with the Dipole antenna, thereby can form 4-6 antenna resonance, as shown in Figure 2, formation is that four antenna resonances are respectively infra-low frequency radiating element resonance a, low frequency radiation unit resonance b, high frequency radiation unit resonance c and inferior high frequency radiation unit resonance d.
The application of the relevant high dielectric constant material of antenna can make originally, and antenna 1/epsilon doubly dwindles (its principle can referring to books such as Principles of Antenna); If PIDA antenna 3D curved surface mode is implemented, actual effect is saved the mobile phone space better simultaneously.
Claims (7)
1. a two monopolar handpiece antenna, is characterized in that comprising the first Radiation Module (2) and the second Radiation Module (3) that are arranged side by side each other on printed circuit board (1);
Described the first Radiation Module (2) comprises high frequency radiation unit (21), low frequency radiation unit (22) and distributing point (23), high frequency radiation unit (21) is located at the top of low frequency radiation unit (22) and is electrically connected to low frequency radiation unit (22), and described distributing point (23) is electrically connected to low frequency radiation unit (22);
Described the second Radiation Module (3) comprises time high frequency radiation unit (31), infra-low frequency radiating element (32) and earth point (33), described high frequency radiation unit (31) is located at infra-low frequency radiating element (32) top and is electrically connected to infra-low frequency radiating element (32), and described earth point (33) is electrically connected to infra-low frequency radiating element (32).
2. according to claim 1 pair of monopolar handpiece antenna, it is characterized in that in middle part and the direction formation towards described low frequency radiation unit (22) of described high frequency radiation unit (21), one first lug boss (211) being arranged, maintain the first spacing (S1) between this first lug boss (211) and low frequency radiation unit (22).
3. according to claim 2 pair of monopolar handpiece antenna, is characterized in that described the first spacing (S1) is of a size of 0.05-0.5 ㎝.
4. according to claim 3 pair of monopolar handpiece antenna, is characterized in that described the first spacing (S1) is of a size of 0.2-0.3 ㎝.
5. according to claim 1 pair of monopolar handpiece antenna, it is characterized in that at the middle part of described high frequency radiation unit (31) and consist of towards the direction of described infra-low frequency radiating element (32) that one second lug boss (311) is arranged, maintain the second spacing (S2) between this second lug boss (311) and infra-low frequency radiating element (32).
6. according to claim 5 pair of monopolar handpiece antenna, is characterized in that described the second spacing (S2) is of a size of 0.05-0.5 ㎝.
7. according to claim 6 pair of monopolar handpiece antenna, is characterized in that described the second spacing (S2) is of a size of 0.2-0.3 ㎝.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100533478A CN103117453A (en) | 2013-02-19 | 2013-02-19 | Double-monopole mobile phone antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100533478A CN103117453A (en) | 2013-02-19 | 2013-02-19 | Double-monopole mobile phone antenna |
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| Publication Number | Publication Date |
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| CN103117453A true CN103117453A (en) | 2013-05-22 |
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| CN2013100533478A Pending CN103117453A (en) | 2013-02-19 | 2013-02-19 | Double-monopole mobile phone antenna |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337700A (en) * | 2013-06-20 | 2013-10-02 | 苏州安洁科技股份有限公司 | Antenna capable of improving impedance matching and bandwidth character |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208825A (en) * | 2005-06-28 | 2008-06-25 | 脉冲芬兰有限公司 | Internal multiband antenna |
| US20080180333A1 (en) * | 2006-11-16 | 2008-07-31 | Galtronics Ltd. | Compact antenna |
| CN201682057U (en) * | 2010-03-31 | 2010-12-22 | 速码波科技股份有限公司 | Multifrequency antenna |
| CN203103508U (en) * | 2013-02-19 | 2013-07-31 | 常熟泓淋电子有限公司 | Dual-monopole mobile phone antenna |
-
2013
- 2013-02-19 CN CN2013100533478A patent/CN103117453A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101208825A (en) * | 2005-06-28 | 2008-06-25 | 脉冲芬兰有限公司 | Internal multiband antenna |
| US20080180333A1 (en) * | 2006-11-16 | 2008-07-31 | Galtronics Ltd. | Compact antenna |
| CN201682057U (en) * | 2010-03-31 | 2010-12-22 | 速码波科技股份有限公司 | Multifrequency antenna |
| CN203103508U (en) * | 2013-02-19 | 2013-07-31 | 常熟泓淋电子有限公司 | Dual-monopole mobile phone antenna |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103337700A (en) * | 2013-06-20 | 2013-10-02 | 苏州安洁科技股份有限公司 | Antenna capable of improving impedance matching and bandwidth character |
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Application publication date: 20130522 |