CN219393696U - Low-frequency mobile phone antenna and mobile terminal - Google Patents
Low-frequency mobile phone antenna and mobile terminal Download PDFInfo
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- CN219393696U CN219393696U CN202320429941.1U CN202320429941U CN219393696U CN 219393696 U CN219393696 U CN 219393696U CN 202320429941 U CN202320429941 U CN 202320429941U CN 219393696 U CN219393696 U CN 219393696U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The embodiment of the utility model discloses a low-frequency mobile phone antenna and a mobile terminal, wherein the low-frequency mobile phone antenna comprises a left monopole antenna and a right monopole antenna, the left monopole antenna is of a C type, the right monopole antenna is of an inverse C type, the left monopole antenna and the right monopole antenna are made of metal materials, and the left monopole antenna and the right monopole antenna form a square frame with the upper edge and the lower edge being disconnected in the middle. The utility model reforms the metal middle frame of the mobile phone as an antenna, supports low frequency bands (315 MHz, 406MHz, 433MHz and the like), and has the advantages of high vertical polarization gain, good omnidirectionality, low cost and easy realization.
Description
Technical Field
The utility model relates to the technical field of antenna navigation, in particular to a low-frequency mobile phone antenna and a mobile terminal.
Background
The current mobile phone generally comprises an antenna which generally comprises a communication antenna, a BT/WIFI antenna and a GNSS antenna. The communication antenna generally requires to support a communication frequency band, and requires to support a 2G/3G/4G/5G frequency band, wherein the lowest frequency band supported is a 700M frequency band; the BT/WIFI antenna generally requires to support a 2.4GHz frequency band, and some BT/WIFI antennas require to support a 5GHz frequency band; GNSS antennas are generally required to support the 1.575GHz band, and some GNSS antennas are required to support the 1.176GHz band; the lowest frequency band supported by the current mobile phone antenna is 700MHz frequency band.
With the progress of technology and the development of society, other functions, such as satellite search and rescue functions, low-power wireless transceiver modules, low-power wide area internet and the like, are required to be added to part of mobile phones. The satellite search and rescue function requires that the mobile phone can manually or automatically (such as after falling into water) transmit 406MHz distress signals to the satellite; the low-power consumption wireless transceiver module adopts an RF433/315M wireless transceiver module, has low power consumption and wide application range, and is applied to vehicle monitoring, remote control, remote measurement, small wireless network, wireless meter reading, access control system, cell paging, industrial data acquisition system, keyless entry system, remote control system, garage door opener, alarm system, security system and the like.
The realization of the mobile phone function requires that a low-frequency antenna is added in the mobile phone, and the mobile phone low-frequency antenna is required to have high vertical polarization gain and good omnidirectionality because of the requirements of search and rescue, low power consumption and the like.
In the prior art, a mobile phone with a search and rescue function and a low-power 433/315M function needs to support 315M, 433M, 406M and other low-frequency bands, but the lowest frequency band of an antenna in the mobile phone in the current market only supports 700MHz frequency bands, and does not support lower frequency bands.
Because the search and rescue, low power consumption and the like are required, the mobile phone low-frequency antenna is required to have high vertical polarization gain and good omnidirectionality. The current mobile phone antenna has lower low-frequency band gain and poor omnidirectionality.
Disclosure of Invention
The technical problem to be solved by the embodiment of the utility model is to provide a low-frequency mobile phone antenna and a mobile terminal for supporting low frequency bands (315 MHz, 406MHz, 433MHz and the like), and the low-frequency mobile phone antenna has the advantages of high vertical polarization gain, good omnidirectionality, low cost and easiness in implementation.
In order to solve the technical problems, the embodiment of the utility model provides a low-frequency mobile phone antenna, which comprises a left monopole antenna and a right monopole antenna, wherein the left monopole antenna is C-shaped, the right monopole antenna is reversely C-shaped, the left monopole antenna and the right monopole antenna are made of metal materials, and the left monopole antenna and the right monopole antenna form a square frame shape with the upper edge and the lower edge disconnected in the middle.
Further, nonmetal intervals of more than 10mm are arranged at the disconnection positions of the upper edge and the lower edge of the left monopole antenna and the right monopole antenna.
Further, the total length of the left monopole antenna is 220mm.
Further, the total length of the right monopole antenna is 340mm.
Correspondingly, the embodiment of the utility model also provides a mobile terminal which comprises a radio frequency circuit, wherein the mobile terminal adopts the low-frequency mobile phone antenna as a metal middle frame, and the radio frequency circuit and the low-frequency mobile phone antenna are fed through a probe or an elastic sheet; or (b)
The mobile terminal adopts a nonmetal middle frame, the inner side of the nonmetal middle frame is plated with the low-frequency mobile phone antenna, and the radio frequency circuit and the low-frequency mobile phone antenna are fed through a probe or an elastic sheet.
The beneficial effects of the utility model are as follows:
1. the utility model supports 406MHz frequency band of international satellite search and rescue function, and the antenna has high gain and good omnidirectionality, and can meet the requirement of adding satellite search and rescue function in mobile phone.
2. The utility model supports 433MHz frequency band at the same time, and the antenna has high gain and good omnidirectional performance, and can meet the requirement of adding 433MHz low-power consumption wireless receiving and transmitting function in the mobile phone.
3. The utility model supports 315MHz frequency band at the same time, and the antenna has high gain and good omnidirectional performance, and can meet the requirement of adding 315MHz low-power consumption wireless receiving and transmitting function in the mobile phone.
4. The antenna has a nonmetallic interval of more than 10mm, high isolation and small interference.
5. According to the utility model, which low-frequency antenna is added on the mobile phone can be determined according to the requirements, 406MHz satellite search and rescue antenna, 433MHz low-power consumption wireless transceiver antenna, 315MHz low-power consumption wireless transceiver antenna and 470-510MHz LoRa (low-power consumption wide area Internet of things) antenna are supported.
6. If the mobile phone adopts a nonmetal middle frame, a metal layer with the same structure as the low-frequency mobile phone antenna of the utility model can be plated in the middle frame to serve as the middle frame antenna, and the performance of the metal middle frame antenna is completely the same as that of the metal middle frame antenna.
7. The low-frequency mobile phone antenna provided by the utility model adopts a metal middle frame design, so that the influence on internal devices of the mobile phone is small.
Drawings
Fig. 1 is a perspective view of a low frequency mobile phone antenna according to an embodiment of the present utility model.
Fig. 2 is a VSWR graph of a low frequency handset antenna according to an embodiment of the utility model.
Fig. 3 is a vertical polarization 3D gain pattern at 406MHz for a low frequency handset antenna according to an embodiment of the utility model.
Fig. 4 is a vertically polarized 3D radiation pattern at 433MHz for a low frequency handset antenna according to an embodiment of the utility model.
Fig. 5 is a 315MHz vertically polarized 3D radiation pattern for a low frequency handset antenna according to an embodiment of the utility model.
Description of the reference numerals
Left monopole antenna 1, right monopole antenna 2, off position 3, nonmetallic gap 4.
Description of the embodiments
It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other, and the present utility model will be further described in detail with reference to the drawings and the specific embodiments.
In the embodiment of the present utility model, if there is a directional indication (such as up, down, left, right, front, and rear … …) only for explaining the relative positional relationship, movement condition, etc. between the components in a specific posture (as shown in the drawings), if the specific posture is changed, the directional indication is correspondingly changed.
In addition, the description of "first," "second," etc. in this disclosure is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implying an indication of the number of features being indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.
Referring to fig. 1, the low frequency mobile phone antenna according to the embodiment of the utility model includes a left monopole antenna and a right monopole antenna. The left monopole antenna is C-shaped, the right monopole antenna is reverse C-shaped, the left monopole antenna and the right monopole antenna are made of metal materials, and the left monopole antenna and the right monopole antenna form a metal middle frame with the upper edge and the lower edge being disconnected. The open position is shown in fig. 1.
If the metal middle frame is adopted by the mobile terminal, the metal middle frame adopts the structure of the low-frequency mobile phone antenna, and the radio frequency circuit and the low-frequency mobile phone antenna are fed through the probe or the elastic sheet; if the nonmetal middle frame is adopted, the metal layer which is the same as the low-frequency mobile phone antenna mechanism is plated on the inner side of the nonmetal middle frame, the metal layer is used as the low-frequency mobile phone antenna, and the radio frequency circuit and the low-frequency mobile phone antenna are fed through a probe or an elastic piece. The metal middle frame of the mobile phone is modified to be used as a low-frequency 406MHz antenna, and the antenna has high gain and good omni-directional performance, so that the requirement of adding a satellite search and rescue function in the mobile phone can be met. The metal middle frame of the mobile phone is modified to be used as a low-frequency 433MHz antenna, and the antenna has high gain and good omni-directional performance, and can meet the requirement of adding a low-power consumption wireless receiving and transmitting function in the mobile phone. The metal middle frame of the mobile phone is modified to be used as a low-frequency 315MHz antenna, and the antenna has high gain and good omni-directional performance, and can meet the requirement of adding a low-power consumption wireless receiving and transmitting function in the mobile phone.
For example, the mobile terminal takes a mobile phone as an example, because the current mainstream mobile phone basically does not use a metal middle frame as an antenna, the empty metal middle frame can be modified into a 406M (433M) antenna or a 315M antenna.
The low-frequency mobile phone antenna adopts a scheme that a monopole antenna is designed on a middle frame of the mobile phone (see figure 1), and takes 160 x 80 x 8mm of common mobile phone size as an example, the metal middle frame is disconnected into an upper point position and a lower point position to form two monopole antennas, the metal middle frame on the left side is used as a 406MHz antenna, the metal middle frame on the right side is used as a 315MHz antenna, 406MHz antennas and 406MHz radio frequency circuits in handheld equipment are fed by using probes or shrapnel on a main board, and the 315MHz antennas and 406MHz receiving and transmitting circuits in the handheld equipment are fed by using probes or shrapnels on the main board.
The left metal middle frame serving as the 406MHz antenna can realize a 406MHz monopole antenna (see figure 1) without changing the appearance of the metal middle frame by changing the position of the upper and lower points, and according to simulation and test, when the total length of the left metal middle frame is 220mm, the VSWR of the antenna can meet the requirement of the 406MHz antenna and the requirement of the 433MHz antenna. At this time, the VSWR simulation result is shown in FIG. 2, the vertical polarization 3D gain pattern at 406MHz is shown in FIG. 3, and the vertical polarization 3D radiation pattern at 433MHz is shown in FIG. 4, so that the VSWR simulation result can be used as both 406MHz antenna and 433MHz antenna when the total length of the left metal middle frame is 220mm. At the moment, the vertical polarization gain of the 406MHz antenna is 1.9dBi, the omnidirectional performance is good, the requirement of satellite search and rescue can be met, the antenna can also be used as a 433MHz antenna, the vertical polarization gain of the 433MHz antenna is 2.1dBi, and the omnidirectional performance is good, so that the antenna is used for a 433M low-power consumption wireless transceiver module.
The metal middle frame serving as the 315MHz antenna on the right can be used for realizing a 315MHz monopole antenna (see figure 1) by disconnecting the upper and lower points without changing the appearance of the metal middle frame, and according to simulation and test, when the total length of the metal middle frame on the right is 340mm, the VSWR of the antenna can meet the requirement of the 315MHz antenna, the vertical polarization 3D radiation pattern of 315MHz is shown in figure 5, and the vertical polarization gain of the 315MHz antenna is 1.6dBi, so that the antenna has high gain and good omnidirectional performance and can be used for a low-power wireless transceiver module.
The non-metal interval (see figure 1) of more than 10mm is arranged between the disconnection positions of the 406MHz antenna and the 315MHz antenna, and according to simulation and test, the isolation between the two antennas can be ensured to meet the requirement, and the interference is small.
If the mobile phone adopts a nonmetal middle frame, a metal layer which is the same as the low-frequency mobile phone antenna of the utility model can be plated in the middle frame to serve as the middle frame antenna, and the performance of the mobile phone is completely the same as that of the metal middle frame antenna.
The low-frequency mobile phone antenna can determine which low-frequency antenna is added on the mobile phone according to the requirements, supports a satellite search and rescue antenna of 406MHz, a low-power consumption wireless transceiver antenna of 433MHz, a low-power consumption wireless transceiver antenna of 315MHz, and also supports a LoRa (low-power consumption wide area Internet of things) antenna of 470-510 MHz.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the spirit and scope of the utility model as defined by the appended claims and their equivalents.
Claims (5)
1. The low-frequency mobile phone antenna is characterized by comprising a left monopole antenna and a right monopole antenna, wherein the left monopole antenna is of a C type, the right monopole antenna is of an inverse C type, the left monopole antenna and the right monopole antenna are made of metal materials, and the left monopole antenna and the right monopole antenna form a square frame with the upper edge and the lower edge disconnected.
2. The low frequency mobile phone antenna according to claim 1, wherein a nonmetal interval of more than 10mm is arranged at the disconnection position of the upper edge and the lower edge of the left monopole antenna and the right monopole antenna.
3. The low frequency handset antenna according to claim 1, wherein the total length of the left monopole antenna is 220mm.
4. The low frequency handset antenna according to claim 1, wherein the total length of the right monopole antenna is 340mm.
5. A mobile terminal comprising a radio frequency circuit, wherein the mobile terminal adopts the low-frequency mobile phone antenna as defined in any one of claims 1-4 as a metal middle frame, and the radio frequency circuit and the low-frequency mobile phone antenna are fed through a probe or a spring plate; or (b)
The mobile terminal adopts a nonmetal middle frame, the inner side of the nonmetal middle frame is plated with the low-frequency mobile phone antenna as claimed in any one of claims 1-4, and a radio frequency circuit and the low-frequency mobile phone antenna are fed through a probe or a spring piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320429941.1U CN219393696U (en) | 2023-03-09 | 2023-03-09 | Low-frequency mobile phone antenna and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320429941.1U CN219393696U (en) | 2023-03-09 | 2023-03-09 | Low-frequency mobile phone antenna and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219393696U true CN219393696U (en) | 2023-07-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320429941.1U Active CN219393696U (en) | 2023-03-09 | 2023-03-09 | Low-frequency mobile phone antenna and mobile terminal |
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| Country | Link |
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| CN (1) | CN219393696U (en) |
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2023
- 2023-03-09 CN CN202320429941.1U patent/CN219393696U/en active Active
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