CN215266645U - 5G mobile phone antenna design structure with practical center metal 2 sending and 4 receiving - Google Patents
5G mobile phone antenna design structure with practical center metal 2 sending and 4 receiving Download PDFInfo
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- CN215266645U CN215266645U CN202120298245.2U CN202120298245U CN215266645U CN 215266645 U CN215266645 U CN 215266645U CN 202120298245 U CN202120298245 U CN 202120298245U CN 215266645 U CN215266645 U CN 215266645U
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Abstract
The utility model relates to a practical 5G mobile phone antenna design structure with a middle frame metal 2-transmitting and 4-receiving function, which relates to the field of mobile phone antennas, solves the problem of inconsistent radio frequency signals of the antenna in the prior art and has high cost; the position of the metal frame segment can affect the performance of the antenna, and the feed position and the ground of each antenna can also affect the performance of the antenna. The technical characteristics comprise a watchcase, a mainboard mechanism arranged in the watchcase and an antenna mechanism; the mainboard mechanism comprises a mainboard, a display screen and a battery, wherein the mainboard and the battery are arranged inside the watchcase, and the display screen is arranged on the front surface of the watchcase; the antenna is used for transmitting and receiving signals to the mobile phone.
Description
Technical Field
The utility model relates to a cell-phone antenna technical field, in particular to have practical middle frame metal 2 send out 5G cell-phone antenna design structure of 4 receipts.
Background
Nowadays, society develops faster and faster, people's degree of dependence to the cell-phone is also higher and higher, and development 5G mobile communication becomes present mainstream wind direction. Since the higher the frequency, the greater the signal bandwidth, the faster the communication rate, 5G can provide higher rate, lower latency, higher security, etc. for 4G. At present, two 5G frequency bands are adopted globally, one is millimeter wave between 30 and 300GHz, the other is Sub-6 concentrated on 3 to 4GHz, and the Sub-6 is mainly pushed in China due to the fact that the Sub-6 is low in cost, beneficial to early construction, rich in low-frequency band, wide in coverage range, high in stability and high in fiber-to-the-home ratio. This study also focused on Sub-6. At present, the design of 5G mobile phone antennas is that an antenna is arranged on a rear cover of glass, an antenna is also arranged on a middle frame of a mobile phone, and an LDS antenna is arranged on the upper part of an appearance surface.
There are two processes for making an antenna on the rear cover of the glass, one is to use an FPC flexible board and the other is to print conductive silver paste. If adopt the FPC flexbile plate, cover behind glass, then need solve the difficult problem of not perk corner and the thickness challenge that increases, if the printing conductive silver thick liquid, then need solve the not good control of printing thickness, lead to the inconsistent difficult problem of antenna radio frequency signal, and with high costs. If the LDS antenna is adopted, a large space is needed, and the LDS antenna is adopted in a limited space, so that the space of a clearance area is occupied, and the omnidirectional communication effect of the antenna is influenced. The mobile phone antenna is made of a metal middle frame, and frequency bands of the WIFI/GPS/Bluetooth/2G/3G/4G/5G antennas are obtained through coupling of different lengths of the metal middle frame antenna. The metal frame of the mobile phone is segmented into the antennas, the frequency and the bandwidth required by 5G are achieved by adjusting the breakpoints of the frame, the performance of the antennas can be influenced by the positions of the metal frame segments, and the feed position and the ground of each antenna can also influence the performance of the antennas.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem of inconsistent antenna radio frequency signals in the prior art and has high cost; the position of the metal frame segment can influence the performance of the antenna, the feeding position and the ground of each antenna can also influence the performance of the antenna, and the 5G mobile phone antenna design structure with the practical middle frame metal 2 transmitting and 4 receiving is provided.
In order to solve the technical problem, the technical scheme of the utility model is specifically as follows:
the G mobile phone antenna design structure with the practical middle frame metal transceiving comprises a watch case, a mainboard mechanism arranged in the watch case and an antenna mechanism;
the main board mechanism comprises a main board, a display screen and a battery; a
The mainboard and the battery are arranged inside the watch case, and the display screen is arranged on the front surface of the watch case;
the antenna is used for transmitting and receiving signals to the mobile phone.
Preferably, the antenna mechanism comprises a transmitting antenna, feed A, feed B, feed C, feed D, feed E, feed F, feed G, feed H and feed I;
the watch case comprises a watch case body, and is characterized in that a plurality of breakpoints are arranged on the inner frame of the watch case body, the FeedA, the FeedB, the FeedC, the FeedD, the FeedE, the FeedF, the FeedG, the FeedH and the FeedI are respectively arranged at the breakpoints, and the transmitting antenna is arranged on a mainboard.
Preferably, the FeedB, FeedE, FeedF and FeedH are antennas of 5G frequency band.
Preferably, the feed a is a 2G, 3G and 4G antenna.
Preferably, the feed g and the feed i are WIFI, GPS and bluetooth antennas, and the main frequency band of the WIFI/bluetooth antenna is 2.4 GHz.
Preferably, the diversity antenna of high frequency in the FeedC and FeedD has the diversity of antenna at least maintaining the distance of 1/4 wavelengths.
The utility model discloses following beneficial effect has:
the utility model discloses mainly adopt IFA and Loop two kinds of mode overall arrangement, and the ground of Loop and the length and the width of presenting the slit between two pins of a little can exert an influence to the performance, and what the Loop opened is deepened more greatly, and the bandwidth is in the widen, but the standing wave is becoming shallow. If under the condition that the bandwidth and the frequency are not ideal, the impedance matching can be adjusted through aperture tuning and impedance tuning, and the parallel connection or the series connection of the inductance and the capacitance can be adjusted, so that the design requirement is met.
The antenna can not only reach the 5G frequency band through debugging, but also contain the mobile communication frequency band of current 2G, 3G and 4G and the frequency band of WIFI, GPS and Bluetooth. The antenna is designed by professional indexes, high-quality material selection and a strict processing quality inspection flow system are adopted; the method has the advantages of stable performance, good consistency of multiple batches, delicate and firm appearance, easy installation and matching and the like.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of a design structure of a 5G mobile phone antenna with a practical middle frame metal 2 transceiver and 4 transceiver of the present invention;
fig. 2 is a structural diagram of a 5G mobile phone antenna with a middle frame metal 2 transmitting and receiving function, according to the present invention;
fig. 3 is a structural diagram of the main board and the transmitting antenna of the present invention;
fig. 4 is a schematic diagram of a matching circuit.
The reference numerals in the figures denote:
1. a watch case; 2. a main board; 3. a display screen; 4. a battery; 5. a transmitting antenna; 6. feeding A; 7. feeding B; 8. feeding C; 9. feeding D; 10. feeding E; 11. feeding F; 12. feed G; 13. feed H; 14. and (5) feed I.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-3, a practical antenna design structure of a 5G mobile phone with a middle frame 2 for transmitting and receiving is characterized by comprising a case 1, a main board mechanism arranged in the case 1 and an antenna mechanism;
the main board mechanism comprises a main board 2, a display screen 3 and a battery 4; a
The mainboard 2 and the battery 4 are arranged inside the watch case 1, and the display screen 3 is arranged on the front surface of the watch case 1;
the antenna is used for transmitting and receiving signals to the mobile phone.
The antenna mechanism comprises a transmitting antenna 5, a feed A6, a feed B7, a feed C8, a feed D9, a feed E10, a feed F11, a feed G12, a feed H13 and a feed I14;
the inner frame of the watch case 1 is provided with a plurality of break points, the feed A6, the feed B7, the feed C8, the feed D9, the feed E10, the feed F11, the feed G12, the feed H13 and the feed I14 are respectively arranged at the break points, and the transmitting antenna 5 is arranged on the mainboard 2.
The feed b7, feed e10, feed f11, and feed h13 are antennas of 5G band.
The feed A6 is a 2G, 3G and 4G antenna.
The feed G12 and the feed I14 are WIFI, GPS and Bluetooth antennas, and the main frequency band of the WIFI/Bluetooth antenna is 2.4 GHz.
The high frequency diversity antennas in the feed c8 and the feed d9 have diversity of at least 1/4 wavelengths.
The working principle is as follows:
when the antenna length is 1/4 of the wavelength of the radio signal, the conversion efficiency of the transmission and the reception of the antenna is the highest, and the calculation formula of the wavelength is that the wavelength is speed/frequency; the Feed B, Feed E, Feed F and Feed H in the figure are 5G frequency band antennas, which comprise n77/n78/n79, and the length of the antenna is about 22.45/21.125/16mm through calculation.
Feed a is a 2G, 3G, 4G antenna, which contains multiple frequency bands, with some of the frequency bands being repeated so that the length of the antenna only needs to include the bandwidth in all frequency bands.
Feed G and Feed I are WIFI, GPS and Bluetooth antennas, the main frequency band of the WIFI/Bluetooth antenna is 2.4GHz, and the frequency band range of the GPS is 1575.42 +/-1.023 MHz.
The length of the WIFI/Bluetooth antenna which can be calculated is about 31.25mm, and the GPS antenna is about 47.6 mm.
In addition, in the high frequency diversity antenna in Feed C and Feed D, the diversity of the antenna is at least maintained at a distance of 1/4 wavelengths. And ensuring that at least one antenna is in the wave crest of the waveform, and improving the instantaneous signal-to-noise ratio and the average signal-to-noise ratio of the mobile phone and the receiving end through antenna diversity.
As the number of antennas in a smartphone increases from 4-6 to 8 or more. At the same time, the space available for mobile system antennas is reduced, resulting in reduced antenna efficiency.
More optimal performance can be achieved over a wider range of frequencies if bandwidth and frequency are less than ideal through aperture tuning and impedance tuning, adding a tuning component (capacitance or inductance) between the switch and the radiating element.
Referring to fig. 4, fig. 4 shows a tuning circuit using a capacitor with a capacitance greater than 0.5pF to avoid using high tolerance devices and an inductor with an inductance greater than 36 nH.
The capacitance and inductance calculation formula of the matching circuit is as follows:
this design places the antenna of main communication such as 2G 3G 4G 5G WIFI GPS bluetooth in the upper end and the lower extreme of cell-phone, and other antennas are placed to the cell-phone both sides, can avoid holding the signal shielding that causes when both sides like this, and the position of suitable adjustment antenna realizes required frequency channel again under this principle.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications can be made without departing from the scope of the invention.
Claims (5)
1. The 5G mobile phone antenna design structure with the practical middle frame metal 2 for transmitting and receiving is characterized by comprising a watchcase (1), a mainboard mechanism arranged in the watchcase (1) and an antenna mechanism;
the main board mechanism comprises a main board (2), a display screen (3) and a battery (4);
the mainboard (2) and the battery (4) are arranged inside the watchcase (1), and the display screen (3) is arranged on the front surface of the watchcase (1);
the antenna is used for transmitting and receiving signals to the mobile phone;
the antenna mechanism comprises a transmitting antenna (5), a feed A (6), a feed B (7), a feed C (8), a feed D (9), a feed E (10), a feed F (11), a feed G (12), a feed H (13) and a feed I (14);
the frame is equipped with a plurality of breakpoints in watchcase (1), install respectively in breakpoint department feed A (6), feed B (7), feed C (8), feed D (9), feed E (10), feed F (11), feed G (12), feed H (13) and feed I (14), emitting antenna (5) set up on mainboard (2).
2. The antenna design structure of claim 1, wherein the feed b (7), the feed e (10), the feed f (11), and the feed h (13) are 5G band antennas.
3. The antenna design structure of 5G mobile phone with practical middle frame metal 2 transceiver 4 receiver as claimed in claim 1, wherein the feed A (6) is 2G, 3G and 4G antenna.
4. The antenna design structure of 5G mobile phone with practical center metal 2 transceiver and 4 transceiver as claimed in claim 1, wherein the feed G (12) and feed I (14) are WIFI, GPS and Bluetooth antennas, and the main frequency band of WIFI/Bluetooth antenna is 2.4 GHz.
5. The antenna design structure of 5G mobile phone with practical midframe metal 2-transmitting-4-receiving of claim 1, characterized in that the diversity antenna in the FeedC (8) and the FeedD (9) has high frequency, and the antenna diversity is at least maintained at a distance of 1/4 wavelengths.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120298245.2U CN215266645U (en) | 2021-02-02 | 2021-02-02 | 5G mobile phone antenna design structure with practical center metal 2 sending and 4 receiving |
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| CN202120298245.2U CN215266645U (en) | 2021-02-02 | 2021-02-02 | 5G mobile phone antenna design structure with practical center metal 2 sending and 4 receiving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114843743A (en) * | 2021-02-02 | 2022-08-02 | 深圳市玛雅通讯设备有限公司 | 5G mobile phone antenna design structure with practical center metal 2 sending and 4 receiving |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114843743A (en) * | 2021-02-02 | 2022-08-02 | 深圳市玛雅通讯设备有限公司 | 5G mobile phone antenna design structure with practical center metal 2 sending and 4 receiving |
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