CN108390162B - Antenna device and terminal - Google Patents
Antenna device and terminal Download PDFInfo
- Publication number
- CN108390162B CN108390162B CN201810024932.8A CN201810024932A CN108390162B CN 108390162 B CN108390162 B CN 108390162B CN 201810024932 A CN201810024932 A CN 201810024932A CN 108390162 B CN108390162 B CN 108390162B
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- antenna
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- gps
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q23/00—Antennas with active circuits or circuit elements integrated within them or attached to them
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- 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
- H01Q1/2258—Supports; Mounting means by structural association with other equipment or articles used with computer equipment
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- 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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/526—Electromagnetic shields
Abstract
The invention discloses an antenna device and a terminal, wherein the antenna device comprises a first antenna, a GPS (global positioning system) channel, a DPDT (digital pre-distortion test) channel and an extractor, wherein the first antenna is used for receiving or transmitting a main radio frequency signal or receiving a GPS signal; the GPS path is electrically connected with the first antenna and used for receiving GPS signals; a DPDT path electrically connected to the first antenna for transmitting the primary RF signal; the extractor is arranged between the first antenna and the GPS channel and between the first antenna and the DPDT channel and is used for isolating the GPS channel from the DPDT channel. The invention greatly reduces the influence of the main radio frequency signal on the GPS signal; meanwhile, the first antenna is used as a diversity antenna and a GPS antenna simultaneously, so that the functions of receiving or transmitting a main radio frequency signal or receiving a GPS signal are realized, the antenna setting is simplified, and the hardware cost is reduced.
Description
Technical Field
The present invention relates to the field of antenna technologies, and in particular, to an antenna device and a terminal.
Background
GPS (Global Positioning System) is widely used for navigation of terminals such as mobile phones and tablet computers. Because of the high sensitivity of the GPS, the GPS is easily interfered by radio frequency signals, for example, radiation interference of a flexible circuit board or a driving integrated circuit when an LCD (Liquid Crystal Display) is turned on, GSM1800/WB2 main wave radiation interference, B13/14 second harmonic interference, and the like all cause sensitivity reduction (De-sense) of the GPS.
The inventor of the present application finds, in a long-term research and development, that, in order to compensate for the situation that the receiving performance of the main set antenna is deteriorated when the main set antenna is held by hand, a TAS (smart antenna switching technology) is usually added to the terminal, that is, the connection of the antenna is switched through a DPDT (Double Pole Double Throw) path, so that the main set antenna, the diversity antenna and the GPS antenna need to be simultaneously arranged in the terminal. The diversity antenna and the GPS antenna have insufficient isolation, and the receiving performance of the GPS antenna is easily influenced when the diversity antenna is used as a transmitting end. If the groove is added at the front end of the GPS channel, only the energy of the fixed frequency band in the main radio frequency can be attenuated, and the energy of the whole main radio frequency cannot be completely attenuated.
Disclosure of Invention
The invention provides an antenna device and a terminal, which aim to solve the technical problem that the GPS antenna is easily interfered by a main radio frequency signal to cause the sensitivity of a GPS to be reduced in the prior art.
In order to solve the above technical problem, one technical solution adopted by the present invention is to provide an antenna apparatus, including:
the first antenna is used for receiving or transmitting a main radio frequency signal or receiving a GPS signal;
a GPS path electrically connected to the first antenna for receiving the GPS signal;
a DPDT path electrically connected to the first antenna for transmitting the primary RF signal;
and the extractor is arranged between the first antenna and the GPS channel and between the first antenna and the DPDT channel and is used for isolating the GPS channel from the DPDT channel.
In order to solve the above technical problem, another technical solution adopted by the present invention is to provide a terminal including the above antenna apparatus.
According to the invention, the extractor is arranged between the first antenna and the GPS channel and between the first antenna and the DPDT channel to isolate the GPS channel and the DPDT channel, so that the influence of the main radio frequency signal on the GPS signal is greatly reduced; meanwhile, the first antenna is used as a diversity antenna and a GPS antenna simultaneously, so that the functions of receiving or transmitting a main radio frequency signal or receiving a GPS signal are realized, the antenna setting is simplified, and the hardware cost is reduced.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural diagram of an embodiment of an antenna device according to the present invention;
fig. 2 is a schematic structural diagram of another embodiment of an antenna device according to the present invention;
fig. 3 is a schematic structural diagram of an embodiment of the terminal of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Referring to fig. 1, an embodiment of the antenna apparatus of the present invention includes a first antenna 101, a decimator 102, a GPS path 103, a DPDT path 104, a second antenna 105, a diversity signal path 106, and a main set signal path 107. The first antenna 101 is used for receiving or transmitting a main radio frequency signal or receiving a GPS signal; the GPS path 103 is electrically connected to the first antenna 101 for receiving GPS signals; the DPDT path 104 is electrically connected to the first antenna 101, and is configured to transmit a main rf signal; the extractor 102 is disposed between the first antenna 101 and the GPS channel 103 and the DPDT channel 104, and is configured to isolate the GPS channel 103 from the DPDT channel 104; the second antenna 105 is electrically connected to the DPDT path 104, and is configured to receive or transmit a main rf signal; the diversity signal path 106 is electrically connected to the DPDT path 104, and is configured to receive the main rf signal; the primary set signal path 107 is electrically connected to the DPDT path 104 for receiving or transmitting a primary radio frequency signal.
In this embodiment, the first antenna 101 serves as both a diversity antenna and a GPS antenna, and the original GPS antenna is omitted; the second antenna 105 is a main set antenna.
Specifically, the decimator 102 includes a signal input port 1021, a GPS output port 1022, and a main rf signal output port 1023, wherein the signal input port 1021 is electrically connected to the first antenna 101, the GPS output port 1022 is electrically connected to the GPS path 103, and the main rf signal output port 1023 is electrically connected to the DPDT path 104.
When the received signal strength of the first antenna 101 and the second antenna 105 is at a normal value, the DPDT path 104 does not need to switch the connection between the decimator 102 and the second antenna 105 to the diversity signal path 106 and the main diversity signal path 107, respectively. Diversity signal path 106 is electrically connected to first antenna 101 through DPDT path 104 and extractor 102, with extractor 102 being closed, extractor 102 serving as a conductor to electrically connect first antenna 101 to diversity signal path 106, and main diversity signal path 107 being electrically connected to second antenna 105 through DPDT path 104. A first antenna 101 receives a main radio frequency signal and sends the main radio frequency signal to a diversity signal path 106 through a decimator 102 and a DPDT path 104; a first antenna 101 receives GPS signals and sends the signals to a GPS channel 103 through an extractor 102; the second antenna 105 receives the main radio frequency signal and sends the main radio frequency signal to the main signal collecting channel 107 through the DPDT channel 104; the main signal path 107 sends a main rf signal to the second antenna 105 through the DPDT path 104, and the second antenna 105 transmits the main rf signal to the outside.
When the second antenna 105 is shielded, so that the strength value of the signal received by the second antenna 105 and the strength value of the signal received by the first antenna 101 are greater than or equal to 10dB, i.e. the strength value of the signal received by the first antenna 101-the strength value of the signal received by the second antenna 105 are greater than or equal to 10dB, the DPDT path 104 switches the connection between the extractor 102 and the second antenna 105 and the diversity signal path 106 and the main diversity signal path 107, respectively. The diversity signal path 106 is electrically connected to the second antenna 105 through the DPDT path 104, and the main diversity signal path 107 is electrically connected to the first antenna 101 through the DPDT path 104 and the extractor 102. A first antenna 101 receives a main radio frequency signal and sends the main radio frequency signal to a main signal collection path 107 through a decimator 102 and a DPDT path 104; a first antenna 101 receives GPS signals and sends the signals to a GPS channel 103 through an extractor 102; the main set signal path 107 sends a main radio frequency signal to the first antenna 101 through the DPDT path 104 and the extractor 102, and the first antenna 101 transmits the main radio frequency signal to the outside; the second antenna 105 receives the main rf signal and transmits it to the diversity signal path 106 via the DPDT path 104. At this time, the decimator 102 is turned on, so that the main rf signal transmitted from the main signal path 107 to the main rf signal output port 1023 through the DPDT path 104 is attenuated when it is radiated to the GPS output port 1022, thereby isolating the GPS path 103 from the DPDT path 104. For example, when the intermediate frequency does not participate in TAS switching, although the frequencies of B5(Bands 5, fifth frequency band), B7, B8, B12, B13, B20, and B28 in the main rf signal are far from the frequency of the GPS signal, the power of the main rf signal is high, and as the main rf signal radiates in the direction of the GPS path 103, a part of the power still leaks to the frequency of the GPS signal, which affects the GPS signal; when the intermediate frequency participates in TAS switching, the frequencies of B1, B2, B3 and B4 in the main frequency signal have greater influence on the GPS signal, so that the GPS channel 103 and the DPDT channel 104 are isolated by the decimator 102, so that the power of the main radio frequency signal is greatly reduced when the main radio frequency signal radiates to the GPS channel 103, and the influence on the GPS signal is alleviated.
In this embodiment, the attenuation of the main rf signal at the main rf signal output port 1023 radiated to the GPS output port 1022 is equal to or greater than 35dB, such as 35dB, 40dB, or 45 dB.
In the embodiment of the invention, the extractor is arranged between the first antenna and the GPS channel and between the first antenna and the DPDT channel to isolate the GPS channel and the DPDT channel, so that the influence of the main radio frequency signal on the GPS signal is greatly reduced; meanwhile, the first antenna is used as a diversity antenna and a GPS antenna simultaneously, so that the functions of receiving or transmitting a main radio frequency signal or receiving a GPS signal are realized, the antenna setting is simplified, and the hardware cost is reduced.
Referring to fig. 2, another embodiment of the antenna apparatus of the present invention comprises a first antenna 201, a decimator 202, a GPS path 203, a DPDT path 204, a second antenna 205, a diversity signal path 206, a main set signal path 207, and a partition 208. The first antenna 201 is used for receiving or transmitting a main radio frequency signal or receiving a GPS signal; the GPS path 203 is electrically connected to the first antenna 201 for receiving GPS signals; the DPDT path 204 is electrically connected to the first antenna 201, and is configured to transmit a main rf signal; the extractor 202 is arranged between the first antenna 201 and the GPS channel 203 and the DPDT channel 204, and is used for isolating the GPS channel 203 and the DPDT channel 204; the second antenna 205 is electrically connected to the DPDT path 204, and is configured to receive or transmit the main rf signal; the diversity signal path 206 is electrically connected to the DPDT path 204 for receiving the main rf signal; the main set signal path 207 is electrically connected to the DPDT path 204, and is configured to receive or transmit a main rf signal; a partition 208 is provided between the GPS path 203 and the main set signal path 207 for isolating the GPS path 203 from the main set signal path 207.
Specifically, when the second antenna 205 is shielded, so that the strength value of the signal received by the second antenna 205 and the strength value of the signal received by the first antenna 201 are greater than or equal to 10dB, i.e. the strength value of the signal received by the first antenna 201-the strength value of the signal received by the second antenna 205 are greater than or equal to 10dB, the DPDT path 204 switches the connection between the decimator 202 and the second antenna 205 and the diversity signal path 206 and the main signal path 207, respectively. The diversity signal path 206 is electrically connected to the second antenna 205 via the DPDT path 204 and the main diversity signal path 207 is electrically connected to the first antenna 201 via the DPDT path 204 and the extractor 202, with the extractor 202 turned on so that the main rf signal of the DPDT path 204 is attenuated as it radiates to the GPS path 203 to isolate the GPS path 203 from the DPDT path 204. In this embodiment, a power amplifier is disposed in the main signal path 207, which itself generates strong radiation, and when the GPS path 203 is disposed too close to the main signal path 207, the main rf signal still affects the GPS signal, so the GPS path 203 and the main signal path 207 are isolated by disposing a partition 208.
In the embodiment of the invention, the extractor is arranged between the first antenna and the GPS channel and between the first antenna and the DPDT channel to isolate the GPS channel and the DPDT channel, so that the influence of the main radio frequency signal on the GPS signal is greatly reduced; meanwhile, the first antenna is used as a diversity antenna and a GPS antenna simultaneously, so that the functions of receiving or transmitting a main radio frequency signal or receiving a GPS signal are realized, the antenna setting is simplified, and the hardware cost is reduced.
Referring to fig. 3, the terminal embodiment of the present invention includes an antenna device 300, and specifically, the structure of the antenna device 300 refers to the above-mentioned antenna device embodiment, which is not described herein again.
In the embodiment of the invention, the extractor is arranged between the first antenna and the GPS channel and between the first antenna and the DPDT channel to isolate the GPS channel and the DPDT channel, so that the influence of the main radio frequency signal on the GPS signal is greatly reduced; meanwhile, the first antenna is used as a diversity antenna and a GPS antenna simultaneously, so that the functions of receiving or transmitting a main radio frequency signal or receiving a GPS signal are realized, the antenna setting is simplified, and the hardware cost is reduced.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (4)
1. An antenna device, comprising:
the first antenna is used for receiving or transmitting a main radio frequency signal or receiving a GPS signal;
a GPS path electrically connected to the first antenna for receiving the GPS signal;
a DPDT path electrically connected to the first antenna for transmitting the primary RF signal;
an extractor, disposed between the first antenna and the GPS channel and the DPDT channel, for isolating the GPS channel and the DPDT channel;
the second antenna is electrically connected with the DPDT path and used for receiving or transmitting the main radio frequency signal;
a diversity signal path electrically connected to the DPDT path for receiving the primary radio frequency signal;
a main set signal path electrically connected to the DPDT path for receiving or transmitting the main RF signal;
a partition disposed between the GPS path and the main set signal path for isolating the GPS path from the main set signal path;
wherein, when the received signal strength of the first antenna and the second antenna is at a normal value, the diversity signal path is electrically connected to the first antenna through the DPDT path and the extractor, the extractor is turned off, the extractor is used as a conducting wire to electrically connect the first antenna and the diversity signal path, the main set signal path is electrically connected to the second antenna through the DPDT path, the first antenna receives the main rf signal and sends the main rf signal to the diversity signal path through the extractor and the DPDT path, the first antenna receives the GPS signal and sends the GPS signal to the GPS path through the extractor, the second antenna receives the main rf signal and sends the main rf signal to the main set signal path through the DPDT path, or the main set signal path sends the main rf signal to the second antenna through the DPDT path, the second antenna transmits the main radio frequency signal to the outside;
when the second antenna is shielded, so that the difference between the strength value of the signal received by the first antenna and the strength value of the signal received by the second antenna is greater than or equal to 10dB, the main signal collection channel is electrically connected with the first antenna through the DPDT channel and the extractor, the diversity signal channel is electrically connected with the second antenna through the DPDT channel, the first antenna receives the main rf signal and sends the main rf signal to the main signal collection channel through the extractor and the DPDT channel, the first antenna receives the GPS signal and sends the GPS signal to the GPS channel through the extractor, or the main signal collection channel sends the main rf signal to the first antenna through the DPDT channel and the extractor, the first antenna sends the main rf signal to the outside, and the second antenna receives the main rf signal and sends the main rf signal to the diversity signal channel through the DPDT channel, the decimator is turned on so that the main radio frequency signal at the main radio frequency signal output port of the decimator is attenuated when radiated to the GPS output port of the decimator to isolate the GPS path from the DPDT path.
2. The antenna device of claim 1,
and the attenuation of the main radio frequency signal at the main radio frequency signal output port is more than or equal to 35dB when the main radio frequency signal is radiated to the GPS output port.
3. The antenna device of claim 1,
the first antenna is used as a diversity antenna and a GPS antenna at the same time, and the second antenna is used as a main diversity antenna.
4. A terminal characterised by comprising an antenna arrangement according to any of claims 1 to 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024932.8A CN108390162B (en) | 2018-01-10 | 2018-01-10 | Antenna device and terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810024932.8A CN108390162B (en) | 2018-01-10 | 2018-01-10 | Antenna device and terminal |
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| Publication Number | Publication Date |
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| CN108390162A CN108390162A (en) | 2018-08-10 |
| CN108390162B true CN108390162B (en) | 2021-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810024932.8A Active CN108390162B (en) | 2018-01-10 | 2018-01-10 | Antenna device and terminal |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401577A (en) * | 2013-07-12 | 2013-11-20 | 惠州Tcl移动通信有限公司 | Antenna switching system of mobile terminal |
| CN105099476A (en) * | 2015-07-20 | 2015-11-25 | 联想(北京)有限公司 | Electronic device and signal processing method thereof |
| CN105634569A (en) * | 2015-12-31 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Control circuit and terminal achieving carrier aggregation and WIFI double-frequency MIMO |
| CN106209154A (en) * | 2016-07-01 | 2016-12-07 | 乐视控股（北京）有限公司 | Antenna assembly and major-minor collection antenna-switching device thereof and method |
| CN107069216A (en) * | 2017-02-27 | 2017-08-18 | 维沃移动通信有限公司 | A kind of antenna structure, mobile terminal and method of controlling antenna |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8774068B2 (en) * | 2012-10-11 | 2014-07-08 | Sony Corporation | Dual swapping switches to meet linearity demands of carrier aggregation |
| KR102496907B1 (en) * | 2016-06-16 | 2023-02-08 | 삼성전자주식회사 | Antenna and Electric Device comprising the same |
-
2018
- 2018-01-10 CN CN201810024932.8A patent/CN108390162B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401577A (en) * | 2013-07-12 | 2013-11-20 | 惠州Tcl移动通信有限公司 | Antenna switching system of mobile terminal |
| CN105099476A (en) * | 2015-07-20 | 2015-11-25 | 联想(北京)有限公司 | Electronic device and signal processing method thereof |
| CN105634569A (en) * | 2015-12-31 | 2016-06-01 | 宇龙计算机通信科技(深圳)有限公司 | Control circuit and terminal achieving carrier aggregation and WIFI double-frequency MIMO |
| CN106209154A (en) * | 2016-07-01 | 2016-12-07 | 乐视控股（北京）有限公司 | Antenna assembly and major-minor collection antenna-switching device thereof and method |
| CN107069216A (en) * | 2017-02-27 | 2017-08-18 | 维沃移动通信有限公司 | A kind of antenna structure, mobile terminal and method of controlling antenna |
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| CN108390162A (en) | 2018-08-10 |
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