CN109546328B - Dual-frequency four-fed antenna of integrated combiner - Google Patents
Dual-frequency four-fed antenna of integrated combiner Download PDFInfo
- Publication number
- CN109546328B CN109546328B CN201811605377.4A CN201811605377A CN109546328B CN 109546328 B CN109546328 B CN 109546328B CN 201811605377 A CN201811605377 A CN 201811605377A CN 109546328 B CN109546328 B CN 109546328B
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- frequency
- combiner
- double
- pcb
- dipole array
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- 238000003491 array Methods 0.000 claims description 5
- CEOCDNVZRAIOQZ-UHFFFAOYSA-N pentachlorobenzene Chemical compound ClC1=CC(Cl)=C(Cl)C(Cl)=C1Cl CEOCDNVZRAIOQZ-UHFFFAOYSA-N 0.000 claims 11
- 238000002955 isolation Methods 0.000 abstract description 10
- UFNIBRDIUNVOMX-UHFFFAOYSA-N 2,4'-dichlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1Cl UFNIBRDIUNVOMX-UHFFFAOYSA-N 0.000 description 12
- 230000010363 phase shift Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
-
- 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
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
- H01Q1/523—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas between antennas of an array
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/0006—Particular feeding systems
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
Abstract
The invention relates to the technical field of antennas, in particular to a double-frequency four-feed antenna of an integrated combiner, which comprises a first radio frequency coaxial line, a second radio frequency coaxial line, a third radio frequency coaxial line, a fourth radio frequency coaxial line and a PCB (printed circuit board); the PCB is provided with a first double-frequency dipole array element, a second double-frequency dipole array element, a first combiner and a second combiner; the first combiner is arranged on the front surface of the PCB; the second combiner is arranged on the back surface of the PCB. According to the invention, the two double-frequency dipole array elements are output in a branching way by adopting two combiners on the same PCB, so that a four-in-one integrated antenna form of the two high-frequency antennas and the two low-frequency antennas is formed. Because of the up-down arrangement mode between the antennas and the high isolation performance of the first combiner and the second combiner, the four-in-one antenna has excellent isolation between the same frequency and the high frequency and the low frequency.
Description
Technical Field
The invention relates to the technical field of antennas, in particular to a double-frequency four-feed antenna of an integrated combiner.
Background
IEEE 802.11ax, also known as the high efficiency wireless standard, is an established wireless lan standard. IEEE 802.11ax supports 2.4GHz and 5GHz bands, and is compatible with 11a/b/g/n/ac. The aim is to support indoor and outdoor scenes, improve spectral efficiency and four times of actual throughput improvement in dense user environments.
For all-in-one antennas, IEEE 802.11ax can currently support at most 4 paths of 2.4G and 8 paths of 5G, and if a traditional single-frequency antenna is adopted, the whole machine needs 12 antennas, which is very high in cost pressure for customers. The most common way in the market today is to use 4-way 2.4G and 4-way 5G, and for this combination, the most cost-effective way of the antenna system is to use two-branch four-in-one antennas.
Due to the high throughput performance of IEEE 802.11ax, the isolation index of the antenna will become an important factor affecting the wireless performance of the whole machine. Therefore, it is necessary to develop a high-isolation dual-frequency multi-feed antenna.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a double-frequency four-feed antenna of an integrated combiner.
The aim of the invention is achieved by the following technical scheme: a double-frequency four-feed antenna of an integrated combiner comprises a first radio frequency coaxial line, a second radio frequency coaxial line, a third radio frequency coaxial line, a fourth radio frequency coaxial line and a PCB board;
the PCB is provided with a first double-frequency dipole array element, a second double-frequency dipole array element, a first combiner and a second combiner; the first combiner is arranged on the front surface of the PCB; the second combiner is arranged on the back surface of the PCB;
the first combiner is provided with a first splitting end, a second splitting end and a first combining end; the second combiner is provided with a third path-dividing end, a fourth path-dividing end and a second path-combining end; the first radio frequency coaxial line, the second radio frequency coaxial line, the third radio frequency coaxial line and the fourth radio frequency coaxial line are respectively connected with the first shunt end, the second shunt end, the third shunt end and the fourth shunt end;
the first combining end is connected with a first double-frequency dipole array element; the second combining end is connected with a second double-frequency dipole array element.
The invention is further arranged that the first combiner is arranged at the bottom of the PCB; the second double-frequency dipole array element is arranged at the top of the PCB; the first double-frequency dipole array element is arranged at the bottom of the second double-frequency dipole array element; the projection of the second combining end on the front face of the PCB is arranged between the first double-frequency dipole array element and the first combiner.
The invention is further arranged that the front surface of the PCB is provided with a first microstrip line; one end of the first microstrip line is connected with a first double-frequency dipole array element; the other end of the first microstrip line is connected with a first combining end of the first combiner.
The invention is further arranged that the back of the PCB board is provided with a coaxial jumper; one end of the coaxial jumper is electrically connected with the second double-frequency dipole array element; and the other end of the coaxial jumper is connected with a second combining end of the second combiner.
The invention is further arranged that a second microstrip line is arranged on the back surface of the PCB; one end of the second microstrip line is connected with one end of the coaxial jumper; the other end of the second microstrip line is connected with a second double-frequency dipole array element.
The invention further provides that the coaxial jumper is arranged at the middle line in the width direction of the PCB.
The invention further provides that the first double-frequency dipole array element is a double-frequency dipole array or a double-frequency dipole array formed by a plurality of double-frequency dipole arrays.
The invention further provides that the second double-frequency dipole array element is a double-frequency dipole array or a double-frequency dipole array formed by a plurality of double-frequency dipole arrays.
The invention further provides that the front surface and the back surface of the PCB are both provided with the combiner bonding pads.
The invention has the beneficial effects that: according to the invention, the two double-frequency dipole array elements are output in a branching way by adopting the first combiner and the second combiner on the same PCB, so that a four-in-one integrated antenna form of the two high-frequency antennas and the two low-frequency antennas is formed. Because of the up-down arrangement mode between the antennas and the high isolation performance of the first combiner and the second combiner, the four-in-one antenna has excellent isolation between the same frequency and the high frequency and the low frequency.
Drawings
The invention will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the invention, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.
FIG. 1 is a front view of the present invention;
FIG. 2 is a rear view of the present invention;
FIG. 3 is an enlarged view of a portion of the portion A of FIG. 1;
FIG. 4 is an enlarged view of a portion B of FIG. 2;
reference numerals in fig. 1 to 4 illustrate:
11-a first radio frequency coaxial line; 12-a second radio frequency coaxial line; 13-a third radio frequency coaxial line; 14-fourth radio frequency coaxial lines; 21-a first dual-frequency dipole array element; 22-a second dual-frequency dipole array element; 3-a first combiner; 31-a first splitting end; 32-a second shunt end; 33-a first combining end; 4-a second combiner; 41-a third splitting end; 42-fourth tap; 43-a second combining end; 5-a first microstrip line; 61-coaxial jumper; 62-a second microstrip line; 7-combiner pads; 8-PCB board.
Detailed Description
The invention will be further described with reference to the following examples.
As can be seen from fig. 1 to 4; the dual-frequency four-feed antenna of the integrated combiner of the embodiment comprises a first radio frequency coaxial line 11, a second radio frequency coaxial line 12, a third radio frequency coaxial line 13, a fourth radio frequency coaxial line 14 and a PCB 8;
the PCB 8 is provided with a first double-frequency dipole array element 21, a second double-frequency dipole array element 22, a first combiner 3 and a second combiner 4; the first combiner 3 is arranged on the front surface of the PCB 8; the second combiner 4 is arranged on the back surface of the PCB 8;
the first combiner 3 is provided with a first splitting end 31, a second splitting end 32 and a first combining end 33; the second combiner 4 is provided with a third splitting end 41, a fourth splitting end 42 and a second combining end 43; the first rf coaxial line 11, the second rf coaxial line 12, the third rf coaxial line 13 and the fourth rf coaxial line 14 are respectively connected with the first splitting end 31, the second splitting end 32, the third splitting end 41 and the fourth splitting end 42;
the first combining end 33 is connected with the first dual-frequency dipole array element 21; the second combining end 43 is connected to the second dual-band dipole array element 22.
Specifically, in this embodiment, two dual-frequency dipole elements are formed on the same PCB, where the dual-frequency dipole elements may be a single dual-frequency dipole array or a dual-frequency dipole array formed by a plurality of dual-frequency dipole arrays; meanwhile, the first combiner 3 and the second combiner 4 are respectively adopted to output the two double-frequency dipole array elements in a branching way, so that a four-in-one integrated antenna form of two high-frequency antennas and two low-frequency antennas is formed. Because of the up-down arrangement of the antennas and the high isolation performance of the first combiner 3 and the second combiner 4, the four-in-one antenna has excellent isolation between the same frequency and between the high frequency and the low frequency.
The dual-frequency four-feed antenna of the integrated circuit device of the embodiment, the first circuit device 3 is arranged at the bottom of the PCB 8; the second double-frequency dipole array element 22 is arranged on the top of the PCB 8; the first dual-frequency dipole array element 21 is arranged at the bottom of the second dual-frequency dipole array element 22; the projection of the second combining end 43 on the front surface of the PCB 8 is disposed between the first dual-frequency dipole array element 21 and the first combiner 3. According to the up-down arrangement mode of the parts and the high isolation performance of the first combiner 3 and the second combiner 4, the four-in-one antenna has excellent isolation between the same frequency and the high frequency and the low frequency.
In the dual-frequency four-feed antenna of the integrated combiner of the embodiment, the front surface of the PCB 8 is provided with a first microstrip line 5; one end of the first microstrip line 5 is connected with a first dual-frequency dipole array element 21; the other end of the first microstrip line 5 is connected to a first combiner end 33 of the first combiner 3. The phase shift can be performed by providing the first microstrip line 5.
The dual-frequency four-feed antenna of the integrated combiner is described in the embodiment, and a coaxial jumper 61 is arranged on the back of the PCB 8; one end of the coaxial jumper 61 is electrically connected with the second dual-frequency dipole array element 22; the other end of the coaxial jumper 61 is connected to the second combining end 43 of the second combiner 4. The dual-frequency four-feed antenna of the integrated combiner of the embodiment, the back of the PCB 8 is provided with a second microstrip line 62; one end of the second microstrip line 62 is connected with one end of the coaxial jumper 61; the other end of the second microstrip line 62 is connected to the second dual-band dipole array element 22. The phase shift can be performed by providing the second microstrip line 62.
In the dual-frequency four-feed antenna of the integrated circuit device according to the embodiment, the coaxial jumper 61 is disposed at a center line in a width direction of the PCB 8. The coaxial jumper 61 connected to the feed point of the second dual-frequency dipole array element 22 is led out along the central line of the PCB board 8, so that the coaxial jumper 61 of the second dual-frequency dipole array element 22 can be ensured not to affect the directional diagram of the first dual-frequency dipole array element 21.
According to the dual-frequency four-feed antenna of the integrated combiner, the front surface and the back surface of the PCB 8 are both provided with the combiner bonding pads 7. The above arrangement facilitates welding of the first combiner 3 and the second combiner 4.
Finally, it should be noted that the above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present invention without departing from the spirit and scope of the technical solution of the present invention.
Claims (7)
1. The utility model provides a double-frenquency four of integrated circuit ware feed antenna which characterized in that: the device comprises a first radio frequency coaxial line (11), a second radio frequency coaxial line (12), a third radio frequency coaxial line (13), a fourth radio frequency coaxial line (14) and a PCB (8);
the PCB (8) is provided with a first double-frequency dipole array element (21), a second double-frequency dipole array element (22), a first combiner (3) and a second combiner (4); the first combiner (3) is arranged on the front surface of the PCB (8); the second combiner (4) is arranged on the back surface of the PCB (8);
the first combiner (3) is provided with a first splitting end (31), a second splitting end (32) and a first combining end (33); the second combiner (4) is provided with a third path-dividing end (41), a fourth path-dividing end (42) and a second path-combining end (43); the first radio frequency coaxial line (11), the second radio frequency coaxial line (12), the third radio frequency coaxial line (13) and the fourth radio frequency coaxial line (14) are respectively connected with the first branching end (31), the second branching end (32), the third branching end (41) and the fourth branching end (42);
the first combining end (33) is connected with the first double-frequency dipole array element (21); the second combining end (43) is connected with the second double-frequency dipole array element (22);
the first combiner (3) is arranged at the bottom of the PCB (8); the second double-frequency dipole array element (22) is arranged at the top of the PCB (8); the first double-frequency dipole array element (21) is arranged at the bottom of the second double-frequency dipole array element (22); the projection of the second combining end (43) on the front surface of the PCB (8) is arranged between the first double-frequency dipole array element (21) and the first combiner (3);
the front surface and the back surface of the PCB (8) are both provided with a combiner bonding pad (7).
2. The integrated combiner dual-frequency quadrifilar feed antenna of claim 1 wherein: the front surface of the PCB (8) is provided with a first microstrip line (5); one end of the first microstrip line (5) is connected with a first double-frequency dipole array element (21); the other end of the first microstrip line (5) is connected with a first combining end (33) of the first combiner (3).
3. The integrated combiner dual-frequency quadrifilar feed antenna of claim 1 wherein: the back of the PCB (8) is provided with a coaxial jumper (61); one end of the coaxial jumper (61) is electrically connected with the second double-frequency dipole array element (22); the other end of the coaxial jumper (61) is connected with a second combining end (43) of the second combiner (4).
4. A dual-frequency four-feed antenna for an integrated combiner as recited in claim 3, wherein: a second microstrip line (62) is arranged on the back surface of the PCB (8); one end of the second microstrip line (62) is connected with one end of the coaxial jumper (61); the other end of the second microstrip line (62) is connected with a second dual-frequency dipole array element (22).
5. A dual-frequency four-feed antenna for an integrated combiner as recited in claim 3, wherein: the coaxial jumper (61) is arranged at the center line of the PCB (8) in the width direction.
6. The integrated combiner dual-frequency quadrifilar feed antenna of claim 1 wherein: the first double-frequency dipole array element (21) is a double-frequency dipole array or a double-frequency dipole array formed by a plurality of double-frequency dipole arrays.
7. The integrated combiner dual-frequency quadrifilar feed antenna of claim 1 wherein: the second double-frequency dipole array element (22) is a double-frequency dipole array or a double-frequency dipole array formed by a plurality of double-frequency dipole arrays.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811605377.4A CN109546328B (en) | 2018-12-26 | 2018-12-26 | Dual-frequency four-fed antenna of integrated combiner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811605377.4A CN109546328B (en) | 2018-12-26 | 2018-12-26 | Dual-frequency four-fed antenna of integrated combiner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109546328A CN109546328A (en) | 2019-03-29 |
| CN109546328B true CN109546328B (en) | 2024-02-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201811605377.4A Active CN109546328B (en) | 2018-12-26 | 2018-12-26 | Dual-frequency four-fed antenna of integrated combiner |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2224537A1 (en) * | 2009-02-27 | 2010-09-01 | PC-Tel, Inc. | High isolation multi-band monopole antenna for MIMO systems |
| CN104577322A (en) * | 2015-01-30 | 2015-04-29 | 东莞市仁丰电子科技有限公司 | Two-in-one double-feeder multiband omnidirectional high-gain PCB (printed circuit board) antenna |
| CN207124288U (en) * | 2017-08-15 | 2018-03-20 | 上海增信电子有限公司 | A kind of WIFI dual-band and dual-feeds line omnidirectional antenna |
| CN107863605A (en) * | 2017-10-17 | 2018-03-30 | 广东盛路通信科技股份有限公司 | More integrated CPE mimo antennas |
| CN108183322A (en) * | 2017-12-28 | 2018-06-19 | 东莞市仁丰电子科技有限公司 | A kind of multiband three-in-one antenna |
| CN207852916U (en) * | 2018-02-05 | 2018-09-11 | 上海增信电子有限公司 | A kind of High-gain dual-frequency double-fed line omnidirectional antenna |
| CN209119344U (en) * | 2018-12-26 | 2019-07-16 | 东莞市仁丰电子科技有限公司 | A kind of feedback antenna of double frequency four of integrated combiner |
-
2018
- 2018-12-26 CN CN201811605377.4A patent/CN109546328B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2224537A1 (en) * | 2009-02-27 | 2010-09-01 | PC-Tel, Inc. | High isolation multi-band monopole antenna for MIMO systems |
| CN104577322A (en) * | 2015-01-30 | 2015-04-29 | 东莞市仁丰电子科技有限公司 | Two-in-one double-feeder multiband omnidirectional high-gain PCB (printed circuit board) antenna |
| CN207124288U (en) * | 2017-08-15 | 2018-03-20 | 上海增信电子有限公司 | A kind of WIFI dual-band and dual-feeds line omnidirectional antenna |
| CN107863605A (en) * | 2017-10-17 | 2018-03-30 | 广东盛路通信科技股份有限公司 | More integrated CPE mimo antennas |
| CN108183322A (en) * | 2017-12-28 | 2018-06-19 | 东莞市仁丰电子科技有限公司 | A kind of multiband three-in-one antenna |
| CN207852916U (en) * | 2018-02-05 | 2018-09-11 | 上海增信电子有限公司 | A kind of High-gain dual-frequency double-fed line omnidirectional antenna |
| CN209119344U (en) * | 2018-12-26 | 2019-07-16 | 东莞市仁丰电子科技有限公司 | A kind of feedback antenna of double frequency four of integrated combiner |
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| CN109546328A (en) | 2019-03-29 |
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