CN101944649A - Antenna module - Google Patents
Antenna module Download PDFInfo
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- CN101944649A CN101944649A CN2010102479883A CN201010247988A CN101944649A CN 101944649 A CN101944649 A CN 101944649A CN 2010102479883 A CN2010102479883 A CN 2010102479883A CN 201010247988 A CN201010247988 A CN 201010247988A CN 101944649 A CN101944649 A CN 101944649A
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Abstract
An antenna module is arranged in an electronic device and comprises an antenna, a signal processing module, a first differential mode signal sensor, a first coaxial cable and a second coaxial cable, wherein the first differential mode signal sensor is electrically connected between the antenna and the signal processing module; the first coaxial cable comprises a first conductive core and a first tubular conductor covering the first conductive core; the signal received by the antenna is fed in the first end of the first conductive core and the second end of the first conductive core is coupled with the first differential mode signal sensor; the first tubular conductor is grounded; besides, the second coaxial cable comprises a second conductive core and a second tubular conductor covering the second conductive core; the second end of the second conductive core is coupled with the first differential mode signal sensor; and the second tubular conductor is grounded. The antenna module has good electromagnetic compatibility.
Description
Technical field
The present invention relates to a kind of Anneta module, particularly relate to a kind of Anneta module that good Electro Magnetic Compatibility is arranged.
Background technology
Electro Magnetic Compatibility (electromagnetic compatibility is commonly called as EMC) is meant that the operation that meets the requirements of equipment or system does not produce the ability of intolerable electromagnetic interference to any equipment in its environment in its electromagnetic environment.Therefore, Electro Magnetic Compatibility comprises the requirement of two aspects: the equipment that is meant on the one hand can not surpass certain limit value to the electromagnetic interference (electromagnetic interference is commonly called as EMI) that the place environment produces in normal course of operation; Be meant that on the other hand utensil has to a certain degree immunity to interference, i.e. Electronmagnetic Stamina (electromagnetic susceptibility is commonly called as EMS) to the electromagnetic interference that exists in the environment of place.
Please refer to Fig. 1, Fig. 1 shows the structural representation of known Anneta module.This Anneta module 1200 be arranged on an electronic installation (for example: notebook computer), Anneta module 1200 comprise an antenna 1210, a coaxial cable 1240, with a signal processing components 1220.Wherein, antenna 1210 is in order to the reception radio signals, and the radio signals that antenna 1210 received can be transferred to signal processing components 1220 via coaxial cable 1240.Afterwards, signal processing components 1220 can convert these radio signals to the signal that other electronic building bricks can be discerned and handle in the notebook computer.
Please be simultaneously with reference to Fig. 1 and Fig. 2, Fig. 2 shows the structural representation of coaxial cable, coaxial cable 1240 comprise a conductive core line 1246, a dielectric layer 1244, a tubular shape conductor 1248, with an insulation sheath 1242.Wherein, the signal that conductive core line 1246 and tubular shape conductor 1248 are transmitted, its current potential is opposite each other.For example, when conductive core line 1246 transmitted the signal of positive potential, tubular shape conductor 1248 transmitted the signal of negative potential, and when conductive core line 1246 transmitted the signal of negative potential, tubular shape conductor 1248 transmitted the signal of positive potential.
Yet coaxial cable 1240 is when transmitting signals, and it still can be disturbed by the electromagnetic wave that electronic installation sent on every side.For example, be placed on by the television set if will be provided with the notebook computer of this Anneta module 1200, then the electromagnetic wave that television set produced just may be sensed in the antenna 1210, thereby produces noise.In addition, in the bending place or tubular shape conductor 1248 when breakage is arranged, coaxial cable 1240 just can externally send electromagnetic wave or absorb external electromagnetic wave, makes other electronic building bricks or electronic system be subjected to electromagnetic interference therefrom.
Therefore, how designing the Anneta module with Electro Magnetic Compatibility, is to be worth this area to have the problem of knowing that usually the knowledgeable thinks deeply about.
Summary of the invention
The purpose of this invention is to provide a kind of Anneta module, this Anneta module has good Electro Magnetic Compatibility.
According to above-mentioned purpose and other purposes, the invention provides a kind of Anneta module, this Anneta module is arranged in the electronic installation, and this Anneta module comprises: an antenna, a signal processing components, one first differential-mode signal transducer, one first coaxial cable and one second coaxial cable.Wherein, the first differential-mode signal sensor electrical is connected between antenna and the signal processing components.First coaxial cable comprises one first conductive core line and one first tubular shape conductor that this first conductive core line is coated on wherein, the signal that antenna received is fed into first end of first conductive core line, second end of first conductive core line then couples this first differential-mode signal transducer, and the first tubular shape conductor ground connection.In addition, second coaxial cable comprises one second conductive core line and one second tubular shape conductor that this second conductive core line is coated on wherein, and second end of second conductive core line is coupled to the first differential-mode signal transducer, and the second tubular shape conductor ground connection.
In above-mentioned Anneta module, antenna is a dipole antenna, this dipole antenna comprises one first antenna and one second antenna, and the signal that this first antenna is received is fed into first end of first conductive core line, and the signal that second antenna is received then is fed into first end of second conductive core line.
In above-mentioned Anneta module, antenna is a unipole antenna, and the signal that this unipole antenna received is fed into first end of first conductive core line, and the first end ground connection of second conductive core line.
In above-mentioned Anneta module, also comprise one second differential-mode signal transducer, wherein the second differential-mode signal transducer is contacted mutually with the first differential-mode signal transducer, and the first differential-mode signal transducer couples by the second differential-mode signal transducer and signal processing components, and the frequency range of the second differential-mode signal noise that transducer suppresses is different from the frequency range of this first differential-mode signal noise that transducer suppresses.
In above-mentioned Anneta module, also comprise one second differential-mode signal transducer, wherein the second differential-mode signal transducer is contacted mutually with the first differential-mode signal transducer.The first differential-mode signal transducer couples by the second differential-mode signal transducer and signal processing components, and the frequency range of the second differential-mode signal noise that transducer suppresses is same as the frequency range of the first differential-mode signal noise that transducer suppresses.
In above-mentioned Anneta module, the first differential-mode signal transducer comprises one first coil and one second coil, the two ends of this first coil are connected to second end of first conductive core line and second end of second conductive core line, and the two ends of second coil then are connected with the signal processing components.
In above-mentioned Anneta module, antenna is that a unipole antenna is connected, and this unipole antenna is connected in first end of first conductive core line, and first end of second conductive core line is ground connection then.And the first differential-mode signal transducer comprises one first coil and one second coil.One end of first coil is connected in second end of first conductive core line, and the other end of first coil then is connected with the signal processing components.One end of second coil is connected in second end of second conductive core line, and the other end of second coil then is connected with the signal processing components.
Because being used for first conductive core line and second conductive core line of transmission signal is shielded by first tubular shape conductor and second tubular shape conductor respectively, so the Anneta module of present embodiment has preferable Electro Magnetic Compatibility.And the first differential-mode signal transducer can be eliminated common-mode noise, so the received noise of signal processing components can be less.
According to above-mentioned purpose and other purposes, the present invention provides a kind of Anneta module again, and this Anneta module is arranged on the printed circuit board (PCB).Printed circuit board (PCB) is a multi-layer sheet structure, and this printed circuit board (PCB) comprises a top metal layer, an intermediate metal layer and a bottom metal level, and wherein this Anneta module comprises: an antenna, one first differential-mode signal transducer, a signal processing components, with a lead.Wherein, dwi hastasana is formed in the top metal layer, and the first differential-mode signal transducer is formed at the top metal layer, and the signal that antenna received is fed into the first differential-mode signal transducer.The signal processing components is arranged on this top metal layer, and lead is formed at intermediate metal layer.A wherein end of lead is electrically connected the first differential-mode signal transducer, and an other end of lead then is electrically connected the signal processing components.
In above-mentioned Anneta module, also comprise an electrical interface.
In above-mentioned Anneta module, also comprise a metallic shield, this metallic shield is arranged on the top metal layer, and metallic shield shields the first differential-mode signal transducer and signal processing components.
Because lead is formed on the intermediate metal layer, so it can be subjected to the shielding of top metal layer and bottom metal level.Therefore, the signal that lead transmitted more is not vulnerable to extraneous electromagnetic interference.
For above-mentioned purpose of the present invention, feature and advantage more can be become apparent, hereinafter will and cooperate appended diagram with embodiment, elaborate.
Description of drawings
Fig. 1 shows the configuration schematic diagram of Anneta module in the known notebook computer.
Fig. 2 shows the structural representation of coaxial cable.
Fig. 3 shows the schematic diagram of first embodiment of Anneta module of the present invention.
Fig. 4 shows the more detailed structural representation of the first differential-mode signal transducer.
Fig. 5 shows the schematic diagram of second embodiment of Anneta module of the present invention.
Fig. 6 shows the schematic diagram of the 3rd embodiment of Anneta module of the present invention.
Fig. 7 shows the schematic diagram of the 4th embodiment of Anneta module of the present invention.
Fig. 8 shows the schematic diagram of the 5th embodiment of Anneta module of the present invention.
Fig. 9 shows the generalized section of Anneta module of the present invention.
Embodiment
Please refer to Fig. 3, Fig. 3 shows the schematic diagram of first embodiment of Anneta module of the present invention.This Anneta module 2200 is to be arranged in the electronic installation, and this electronic installation for example is notebook computer, desktop computer or mobile phone etc.Anneta module 2200 comprises: an antenna 2210, a signal processing components 2220, one first coaxial cable 2230, one second coaxial cable 2240, and one first differential-mode signal transducer 2250.Wherein, antenna 2210 is that signal processing components 2220 then is in order to the radio signals that antenna received are converted to the signal that other electronic building bricks can be discerned in the electronic installation in order to the reception radio signals.In addition, first coaxial cable 2230 comprises one first conductive core line 2232 and one first tubular shape conductor 2234, and second coaxial cable 2240 comprises one second conductive core line 2242 and one second tubular shape conductor 2244.The first above-mentioned tubular shape conductor 2234 and second tubular shape conductor 2244 for example are to be woven in the mode of netted braiding by many copper cash to form.Be noted that all have dielectric layer and insulation sheath as coaxial cable 1240, the first coaxial cables 2231 and second coaxial cable 2232 of Fig. 2, but, do not illustrate in the drawings for the convenience on representing.
In the present embodiment, antenna 2210 is a dipole antenna, and it comprises one first antenna 2212 and one second antenna 2214.Wherein, the signal that received of first antenna 2212 is fed into first end 2246 that signal that first end, 2236, the second antennas 2214 of first conductive core line 2232 are received then is fed into second conductive core line 2242.Wherein, the signal that first conductive core line 2232 and second conductive core line 2242 are transmitted, its current potential is opposite each other.That is the current potential of the signal that is transmitted when first conductive core line 2232 is timing, and the current potential of the signal that second conductive core line 2242 is transmitted is for negative.
Please continue with reference to Fig. 3 second tubular shape conductor, 2244 ground connection of first tubular shape conductor 2234 of first coaxial cable 2230 and second coaxial cable 2240.Therefore, first conductive core line 2232 or second conductive core line 2242 can be shielded by first tubular shape conductor 2234 or second tubular shape conductor 2244 to extraradial noise, and environment produces electromagnetic interference so be difficult for to external world.In addition, the electromagnetic wave of external environment also can be shielded by first tubular shape conductor 2234 and second tubular shape conductor 2244, is difficult for being coupled in first conductive core line 2232 and second conductive core line 2242 so can guarantee extraneous noise warning signal.
In addition, 2248 at second end 2238 of first conductive core line 2232 and second end of second conductive core line 2242 are connected with the first differential-mode signal transducer 2250, this first differential-mode signal transducer 2250 is to utilize the mode of electromagnetic induction to suppress common-mode noise, but can not suppress differential-mode signal.Please be simultaneously with reference to Fig. 4, Fig. 4 shows the more detailed structural representation of the first differential-mode signal transducer.The first differential-mode signal transducer 2250 comprise one first coil 2251, one second coil 2252, with a magnetic core 2253, wherein the winding direction of first coil 2251 and second coil 2252 is opposite each other, so common-mode noise can be suppressed and eliminate.In addition, the material of magnetic core 2253 for example is a ferrite (ferrites).By 2252 of the material of magnetic core 2253 and first coil 2251 and second coils around the number of turn, can determine the frequency range of first noise that differential-mode signal transducer 2250 suppresses.For example, in the present embodiment, the frequency range of first noise that differential-mode signal transducer 2250 suppresses is 600Mhz～900Mhz.
To sum up, because being used for first conductive core line 2232 and second conductive core line 2242 of transmission signal is shielded by first tubular shape conductor 2234 and second tubular shape conductor 2244 respectively, therefore compared to known Anneta module, the Anneta module 2200 of present embodiment has preferable Electro Magnetic Compatibility.And the first differential-mode signal transducer 2250 can be eliminated common-mode noise, so signal processing components 2220 received noises can be less.
Please refer to Fig. 5, Fig. 5 shows the schematic diagram of second embodiment of Anneta module of the present invention.Compared to Anneta module 2200, this Anneta module 2200 ' also comprises one second differential-mode signal transducer 2260, this second differential-mode signal transducer 2260 is contacted mutually with the first differential-mode signal transducer 2250, and the frequency range of second noise that differential-mode signal transducer 2260 suppresses is same as the frequency range of first noise that differential-mode signal transducer 2240 suppresses.Thus, Anneta module 2200 ' has better inhibition effect to common-mode noise.
Perhaps, the frequency range of second noise that differential-mode signal transducer 2260 suppresses also can differ from the frequency range of first noise that differential-mode signal transducer 2250 suppresses.For example, the frequency range of first noise that differential-mode signal transducer 2250 suppresses is 600Mhz～900Mhz, and the frequency range of second noise that differential-mode signal transducer 2260 suppresses is 1800Mhz～2100Mhz.So, this Anneta module 2200 ' just can be installed in the mobile phone that can receive the double frequency signal.Certainly, this area has and knows the knowledgeable's more differential-mode signal transducer of also can connecting according to need usually.
In aforesaid first embodiment and second embodiment, antenna is all dipole antenna, but this area has and knows usually that the knowledgeable also can change it and be designed to unipole antenna.Please refer to Fig. 6, Fig. 6 shows the schematic diagram of the 3rd embodiment of Anneta module of the present invention.Compared to Anneta module 2200, the antenna 3210 of Anneta module 3200 is a unipole antenna, and the signal that this antenna 3210 is received is fed into first end 2246 ground connection then of first end, 2236, the second conductive core lines 2242 of first conductive core line 2232.As for other assemblies in the Anneta module 3200 because of identical, so just repeat no more at this with Anneta module 2200.
In addition, when antenna was unipole antenna, the connected mode of the coil in the differential-mode signal transducer can have different variations.Please refer to Fig. 7, Fig. 7 shows the schematic diagram of the 4th embodiment of Anneta module of the present invention.The connected mode of the coil in the first differential-mode signal transducer 2250 ' of the Anneta module 4200 of present embodiment is different from the first differential-mode signal transducer 2250 of Anneta module 3200.Wherein, the first differential-mode signal transducer 2250 ' comprises one first coil 2251 ' and one second coil 2252 ', one end of first coil 2251 ' is connected in second end 2248 of second conductive core line 2240, the other end of first coil 2251 ' is ground connection then, the other end that one end of second coil 2252 ' is connected in second end, 2238, the second coils 2252 ' of first conductive core line 2230 then is connected with signal processing components 2220.Wherein, the winding direction of first coil 2251 ' and second coil 2252 ' is opposite each other, so common-mode noise can be suppressed and eliminate.
Please refer to Fig. 8 and Fig. 9, Fig. 8 shows the schematic diagram of the 5th embodiment of Anneta module of the present invention, and Fig. 9 shows the generalized section of Anneta module of the present invention.This Anneta module 5200 is arranged on the printed circuit board (PCB) 100, printed circuit board (PCB) 100 is a multi-layer sheet structure, this printed circuit board (PCB) 100 comprises a top metal layer 110, an intermediate metal layer 120 and a bottom metal level 130, be provided with dielectric layer 140 at each metal interlevel, bottom metal level 130 is as ground connection.Wherein, Anneta module 5200 comprises an antenna 5210, one first differential-mode signal transducer 5250, a signal processing components 5220, reaches a lead 5230.The antenna 5220 and the first differential-mode signal transducer 5250 all are to be formed on the top metal layer 110, and the signal that antenna 5210 is received then is to be fed into the first differential-mode signal transducer 5250.Also be provided with a signal processing components 5220 on the top metal layer 110, this signal processing components 5220 is arranged on the top metal layer 110.Lead 5230 is formed at intermediate metal layer 120, and a wherein end of lead 5230 connects the first differential-mode signal transducer 5250, and an other end of lead 5230 then connects signal processing components 5220.
In addition, also be provided with a metallic shield 5270 on the top metal layer 110, this metallic shield 5270 shieldings first differential-mode signal transducer 5250 and signal processing components 5220 is not so that the first differential-mode signal transducer 5250 and signal processing components 5220 more are subject to the interference of external environment.In addition, this Anneta module 5200 also comprises an electrical interface 5260, this electrical interface 5260 for example is a USB interface, so (for example: after notebook computer), this electronic installation promptly has the function that receives with the transmission wireless signal when this Anneta module 5200 being plugged in an electronic installation.
In Fig. 9, the direction shown in the arrow is the direction of transfer of signal.As shown in Figure 9, the signal that antenna received is fed into the first differential-mode signal transducer 5250 earlier, treat that the first differential-mode signal transducer 5250 is with the common-mode noise filtering after, signal is transferred to signal processing components 5220 via lead 5230 again.Because lead 5230 is formed on the intermediate metal layer 120, so it can be subjected to the shielding of top metal layer 110 and bottom metal level 130.Therefore, the signal that transmitted of lead 5230 more is not vulnerable to extraneous electromagnetic interference.In the above-described embodiment, be with dipole antenna and unipole antenna embodiment, but this area have and know that usually the knowledgeable also can select the antenna of other kenels for use, as the PIFA antenna as antenna.
The present invention illustrates as above that with embodiment so it is not in order to limit the patent right scope that the present invention advocated.Its scope of patent protection should with claims and etc. same domain and deciding.All persons of ordinary skill in the field, in not breaking away from this patent spirit or scope, change of being made or modification all belong to the equivalence of finishing under the disclosed spirit and change or design, and should be included in the claim scope.
Claims (10)
1. an Anneta module is arranged in the electronic installation, and this Anneta module comprises:
One antenna;
One signal processing components;
One first differential-mode signal transducer, this first differential-mode signal sensor electrical are connected between this antenna and this signal processing components;
One first coaxial cable, this first coaxial cable comprises one first conductive core line and one first tubular shape conductor that this first conductive core line is coated on wherein, the signal that this antenna received is fed into first end of this first conductive core line, second end of this first conductive core line then is coupled to this first differential-mode signal transducer, this first tubular shape conductor ground connection; And
One second coaxial cable, this second coaxial cable comprises one second conductive core line and one second tubular shape conductor that this second conductive core line is coated on wherein, second end of this second conductive core line is coupled to this first differential-mode signal transducer, this second tubular shape conductor ground connection.
2. Anneta module as claimed in claim 1, wherein this antenna is a dipole antenna, this dipole antenna comprises one first antenna and one second antenna, the signal that this first antenna is received is fed into first end of this first conductive core line, and the signal that this second antenna is received is fed into first end of this second conductive core line.
3. Anneta module as claimed in claim 1, wherein this antenna is a unipole antenna, the signal that this unipole antenna received is fed into first end of this first conductive core line, and the first end ground connection of this second conductive core line.
4. Anneta module as claimed in claim 1, also comprise one second differential-mode signal transducer, wherein this second differential-mode signal transducer is contacted mutually with this first differential-mode signal transducer, this first differential-mode signal transducer couples by this second differential-mode signal transducer and this signal processing components, and the frequency range of this second differential-mode signal noise that transducer suppresses is different from the frequency range of this first differential-mode signal noise that transducer suppresses.
5. Anneta module as claimed in claim 1, also comprise one second differential-mode signal transducer, wherein this second differential-mode signal transducer is contacted mutually with this first differential-mode signal transducer, this first differential-mode signal transducer couples by this second differential-mode signal transducer and this signal processing components, and the frequency range of this second differential-mode signal noise that transducer suppresses is same as the frequency range of this first differential-mode signal noise that transducer suppresses.
6. Anneta module as claimed in claim 1, wherein this first differential-mode signal transducer comprises one first coil and one second coil, the two ends of this first coil are connected to second end of this first conductive core line and second end of this second conductive core line, and the two ends of this second coil then are connected with this signal processing components.
7. Anneta module as claimed in claim 1, wherein this antenna is a unipole antenna, this unipole antenna is connected in first end of this first conductive core line, first end of this second conductive core line is ground connection then, and this first differential-mode signal transducer comprises one first coil and one second coil, one end of this first coil is connected in second end of this first conductive core line, the other end of this first coil then is connected with this signal processing components, one end of this second coil is connected in second end of this second conductive core line, and the other end of second coil then is connected with this signal processing components.
8. an Anneta module is arranged on the printed circuit board (PCB), and this printed circuit board (PCB) is a multi-layer sheet structure, and this printed circuit board (PCB) comprises a top metal layer, an intermediate metal layer and a bottom metal level, and wherein this Anneta module comprises:
One antenna, this dwi hastasana are formed in this top metal layer;
One first differential-mode signal transducer, this first differential-mode signal transducer is formed at this top metal layer, and the signal that this antenna received is fed into this first differential-mode signal transducer;
One signal processing components, this signal processing components are arranged on this top metal layer; And
One lead, this lead is formed at this intermediate metal layer, and a wherein end of this lead is electrically connected this first differential-mode signal transducer, and an other end of this lead then is electrically connected this signal processing components.
9. Anneta module as claimed in claim 8 also comprises an electrical interface.
10. Anneta module as claimed in claim 8 also comprises a metallic shield, and this metallic shield is arranged on this top metal layer, and this metallic shield shields this first differential-mode signal transducer and this signal processing components.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102479883A CN101944649A (en) | 2010-08-09 | 2010-08-09 | Antenna module |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102479883A CN101944649A (en) | 2010-08-09 | 2010-08-09 | Antenna module |
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| CN101944649A true CN101944649A (en) | 2011-01-12 |
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| CN2010102479883A Pending CN101944649A (en) | 2010-08-09 | 2010-08-09 | Antenna module |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981028A (en) * | 2012-11-02 | 2013-03-20 | 财团法人台湾电子检验中心 | Near-field electromagnetic probe |
| CN104993240A (en) * | 2015-06-25 | 2015-10-21 | 上海安费诺永亿通讯电子有限公司 | Method for greatly improving antenna isolation and antenna |
| CN106134002A (en) * | 2014-01-17 | 2016-11-16 | 斯坦陵布什大学 | Multi-mode composite antenna |
| WO2018219321A1 (en) * | 2017-05-31 | 2018-12-06 | 华为技术有限公司 | Multi-frequency antenna system, and method for controlling different frequency interference in multi-frequency antenna system |
| WO2021003367A1 (en) * | 2019-07-03 | 2021-01-07 | Earth Networks, Inc. | Antenna for use with lightning detection sensor |
| CN113937490A (en) * | 2020-07-13 | 2022-01-14 | 华为技术有限公司 | Antenna and wireless device |
| US20220301742A1 (en) * | 2019-12-12 | 2022-09-22 | Commscope Technologies Llc | Dual coax network with power distribution and mid-span tap for signals and/or power from same |
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| CN101689706A (en) * | 2007-06-29 | 2010-03-31 | 通腾科技股份有限公司 | Antenna arrangement apparatus, reception apparatus and method reducing a common mode signal |
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| US3576578A (en) * | 1967-11-30 | 1971-04-27 | Sylvania Electric Prod | Dipole antenna in which one radiating element is formed by outer conductors of two distinct transmission lines having different characteristic impedances |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102981028A (en) * | 2012-11-02 | 2013-03-20 | 财团法人台湾电子检验中心 | Near-field electromagnetic probe |
| CN106134002A (en) * | 2014-01-17 | 2016-11-16 | 斯坦陵布什大学 | Multi-mode composite antenna |
| CN104993240A (en) * | 2015-06-25 | 2015-10-21 | 上海安费诺永亿通讯电子有限公司 | Method for greatly improving antenna isolation and antenna |
| WO2018219321A1 (en) * | 2017-05-31 | 2018-12-06 | 华为技术有限公司 | Multi-frequency antenna system, and method for controlling different frequency interference in multi-frequency antenna system |
| US11322834B2 (en) | 2017-05-31 | 2022-05-03 | Huawei Technologies Co., Ltd. | Multi-band antenna system and method for controlling inter-band interference in multi-band antenna system |
| WO2021003367A1 (en) * | 2019-07-03 | 2021-01-07 | Earth Networks, Inc. | Antenna for use with lightning detection sensor |
| US11971438B2 (en) | 2019-07-03 | 2024-04-30 | Earth Networks, Inc. | Antenna for use with lightning detection sensor |
| US20220301742A1 (en) * | 2019-12-12 | 2022-09-22 | Commscope Technologies Llc | Dual coax network with power distribution and mid-span tap for signals and/or power from same |
| CN113937490A (en) * | 2020-07-13 | 2022-01-14 | 华为技术有限公司 | Antenna and wireless device |
| CN113937490B (en) * | 2020-07-13 | 2023-05-16 | 华为技术有限公司 | Antenna and wireless device |
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Application publication date: 20110112 |