CN215896702U - Double-frequency double-fed antenna and communication equipment - Google Patents
Double-frequency double-fed antenna and communication equipment Download PDFInfo
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- CN215896702U CN215896702U CN202121251308.5U CN202121251308U CN215896702U CN 215896702 U CN215896702 U CN 215896702U CN 202121251308 U CN202121251308 U CN 202121251308U CN 215896702 U CN215896702 U CN 215896702U
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Abstract
The utility model discloses a double-frequency double-fed antenna and communication equipment, which comprise a PCB (printed circuit board), a low-frequency oscillator, a high-frequency oscillator, a first coaxial line, a second coaxial line, a first low-frequency wiring area, a second low-frequency wiring area, a first high-frequency wiring area and a second high-frequency wiring area, wherein the PCB is provided with a first coaxial line and a second coaxial line; the low-frequency oscillator and the second coaxial line are both positioned on one side of the PCB, and the high-frequency oscillator and the first coaxial line are both positioned on the other side of the PCB; the first coaxial line is connected with the high-frequency oscillator; the second coaxial line is connected with the low-frequency oscillator; the first low-frequency wiring area and the second low-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the low-frequency oscillator; the first high-frequency wiring area and the second high-frequency wiring area are respectively arranged on two sides of the PCB and connected with the high-frequency oscillator, and therefore the isolation degree of the antenna is improved while the miniaturization of the size of the antenna is achieved.
Description
Technical Field
The utility model relates to the technical field of antennas, in particular to a double-frequency double-fed antenna and communication equipment.
Background
An 802.11 ac-supporting router or a WIFI antenna of an ONT (Optical Network Terminal) needs to support a low-frequency 2.4GHz band and a high-frequency 5GHz band at the same time, and needs to have a high isolation (more than 20 dB) to ensure that the high-frequency and low-frequency antennas do not interfere with each other when coexisting in operation. In addition, in order to solve the problem of weak signals after the wall penetration of the home environment, the WIFI antenna is required to have a high-gain characteristic (gain >4dBi), and therefore at least 2 antenna unit arrays are required to improve the gain.
The chinese invention patent with patent number CN201910898550.2 provides a dual-frequency double-fed high-gain omnidirectional antenna, which adopts an antenna structure composed of an antenna housing, a low-frequency radiation part and a high-frequency radiation part, and by printing a high-frequency oscillator and a low-frequency oscillator on the front and back sides of a PCB respectively, the low-frequency oscillators are connected with each other by a coaxial cable for feeding, and the high-frequency oscillators are fed by a single-sided coplanar waveguide, so that the cost is saved, and by short-circuiting and connecting the second high-frequency oscillator, the isolation of the antenna can reach 20 dB.
The problem of this kind of scheme is that in actual production, because single-sided coplanar waveguide (because the other side is provided with the low frequency antenna oscillator, so can't use the two-sided coplanar waveguide that shielding ability is stronger) is relatively poor to the shielding ability of signal, and the terminal interval of high low frequency oscillator is less, leads to the isolation criticality, and the isolation of batch production's antenna can't be stable more than 20dB, has restricted the miniaturization of antenna size.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: provided are a dual-band double-feed antenna and a communication device, which can improve the isolation of the antenna while realizing the miniaturization of the antenna size.
In order to solve the technical problems, the utility model adopts the technical scheme that:
a dual-frequency double-fed antenna comprises a PCB, a low-frequency oscillator, a high-frequency oscillator, a first coaxial line, a second coaxial line, a first low-frequency wiring area, a second low-frequency wiring area, a first high-frequency wiring area and a second high-frequency wiring area;
the low-frequency oscillator and the second coaxial line are both positioned on one side of the PCB, and the high-frequency oscillator and the first coaxial line are both positioned on the other side of the PCB;
the first coaxial line is connected with the high-frequency oscillator;
the second coaxial line is connected with the low-frequency oscillator;
the first low-frequency wiring area and the second low-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the low-frequency oscillator;
the first high-frequency wiring area and the second high-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the high-frequency oscillator.
Furthermore, the first low-frequency wiring area is arranged at the position, corresponding to the two ends of the low-frequency oscillator, on the one side of the PCB;
the second low-frequency wiring area is arranged at the position, corresponding to the first low-frequency wiring area, on the other side of the PCB;
the second high-frequency wiring area is arranged at the position, corresponding to the two ends of the high-frequency oscillator, on the other side of the PCB;
and the position on one side of the PCB, which corresponds to the second high-frequency wiring area, is provided with the first high-frequency wiring area.
Further, a third coaxial line is also included;
the low-frequency oscillator comprises a plurality of low-frequency oscillators;
the distance between the low-frequency oscillators is a first preset distance;
and the low-frequency oscillators are connected through the third coaxial line.
Further, the device also comprises a coplanar waveguide transmission line;
the high-frequency oscillator includes a plurality of high-frequency oscillators;
the distance between the high-frequency oscillators is a second preset distance;
and the high-frequency oscillators are connected through the coplanar waveguide transmission line.
Further, the first preset distance is a wavelength of a low-frequency signal transmitted in the third coaxial line.
Further, the second preset distance is a wavelength of a high-frequency signal transmitted in the coplanar waveguide transmission line.
Furthermore, a plurality of first low-frequency routing lines are arranged in the first low-frequency routing area;
the second low-frequency wiring area is provided with a plurality of second low-frequency wirings;
the first high-frequency wiring area is provided with a plurality of first high-frequency wirings;
the second high-frequency wiring area is provided with a plurality of second high-frequency wirings;
the sum of the lengths of the first low-frequency routing lines is greater than the sum of the lengths of the second low-frequency routing lines;
the sum of the lengths of the first high-frequency wirings is smaller than the sum of the lengths of the second high-frequency wirings;
the first low-frequency wires and the second low-frequency wires and the first high-frequency wires and the second high-frequency wires are connected through metalized through holes.
In order to solve the technical problem, the utility model adopts another technical scheme as follows:
a communication device comprises the dual-frequency dual-feed antenna.
The utility model has the beneficial effects that: through printing high frequency oscillator and low frequency oscillator respectively in the both sides of PCB board, the high frequency is walked line and is walked the line with the low frequency and equally divide the both sides of distributing in PCB, no longer like among the prior art, high, low frequency is walked the line and is only distributed in wherein one side of PCB board respectively, has reduced the size of high low frequency unit effectively, makes the terminal interval grow of high frequency unit and low frequency unit, has reduced electromagnetic coupling to when realizing that antenna size is miniaturized, the isolation of antenna has been promoted.
Drawings
Fig. 1 is a top view of an internal structure of a dual-band dual-feed antenna according to an embodiment of the present invention;
fig. 2 is a bottom view of an internal structure of a dual-band dual-feed antenna according to an embodiment of the present invention;
fig. 3 is a side view of the internal structure of a dual-band dual-feed antenna according to an embodiment of the present invention;
fig. 4 is a schematic diagram of test data of a dual-band dual-feed antenna according to an embodiment of the present invention;
fig. 5 is an E-plane actual measurement pattern of a dual-band dual-feed antenna at a low frequency of 2.4GHz according to an embodiment of the present invention;
fig. 6 is an E-plane actual measurement directional diagram of a dual-frequency dual-feed antenna at a high frequency of 5GHz according to an embodiment of the present invention;
description of reference numerals:
1. a PCB board; 2. a low-frequency oscillator; 21. a first low frequency oscillator; 22. a second low frequency oscillator; 3. a high-frequency oscillator; 31. a first high-frequency oscillator; 32. a second high-frequency oscillator; 33. a third high frequency oscillator; 4. a first coaxial line; 5. a second coaxial line; 6. a first low-frequency routing area; 61. a first low frequency trace; 7. a second low-frequency routing area; 71. a second low frequency trace; 8. a first high-frequency wiring area; 81. a first high frequency trace; 9. a second high-frequency wiring area; 91. a second high frequency trace; 10. a third coaxial line; 11. coplanar waveguide transmission lines.
Detailed Description
In order to explain technical contents, achieved objects, and effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, a dual-frequency dual-feed antenna includes a PCB, a low-frequency oscillator, a high-frequency oscillator, a first coaxial line, a second coaxial line, a first low-frequency routing area, a second low-frequency routing area, a first high-frequency routing area, and a second high-frequency routing area;
the low-frequency oscillator and the second coaxial line are both positioned on one side of the PCB, and the high-frequency oscillator and the first coaxial line are both positioned on the other side of the PCB;
the first coaxial line is connected with the high-frequency oscillator;
the second coaxial line is connected with the low-frequency oscillator;
the first low-frequency wiring area and the second low-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the low-frequency oscillator;
the first high-frequency wiring area and the second high-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the high-frequency oscillator.
From the above description, the beneficial effects of the present invention are: through printing high frequency oscillator and low frequency oscillator respectively in the both sides of PCB board, the high frequency is walked line and is walked the line with the low frequency and equally divide the both sides of distributing in PCB, no longer like among the prior art, high, low frequency is walked the line and is only distributed in wherein one side of PCB board respectively, has reduced the size of high low frequency unit effectively, makes the terminal interval grow of high frequency unit and low frequency unit, has reduced electromagnetic coupling to when realizing that antenna size is miniaturized, the isolation of antenna has been promoted.
Furthermore, the first low-frequency wiring area is arranged at the position, corresponding to the two ends of the low-frequency oscillator, on the one side of the PCB;
the second low-frequency wiring area is arranged at the position, corresponding to the first low-frequency wiring area, on the other side of the PCB;
the second high-frequency wiring area is arranged at the position, corresponding to the two ends of the high-frequency oscillator, on the other side of the PCB;
and the position on one side of the PCB, which corresponds to the second high-frequency wiring area, is provided with the first high-frequency wiring area.
According to the description, the two low-frequency wiring areas and the two high-frequency wiring areas are arranged on the two sides of the PCB respectively, so that the size of the high-low frequency unit is reduced, the distance between the tail ends of the high-low frequency unit is increased, electromagnetic coupling is reduced, and the isolation of the antenna is improved.
Further, a third coaxial line is also included;
the low-frequency oscillator comprises a plurality of low-frequency oscillators;
the distance between the low-frequency oscillators is a first preset distance;
and the low-frequency oscillators are connected through the third coaxial line.
According to the description, the plurality of low-frequency oscillators form the array antenna with the plurality of units, the gain of the antenna is improved, the plurality of low-frequency oscillators are connected with the feed through the coaxial line, the feed to the low-frequency units is realized, the loss of the antenna is reduced, the feed mode is simple, and the cost is saved.
Further, the device also comprises a coplanar waveguide transmission line;
the high-frequency oscillator includes a plurality of high-frequency oscillators;
the distance between the high-frequency oscillators is a second preset distance;
and the high-frequency oscillators are connected through the coplanar waveguide transmission line.
According to the above description, the plurality of high-frequency oscillators form the array antenna with the plurality of units, so that the gain of the antenna is improved, the plurality of high-frequency oscillators are fed through the coplanar waveguide, the feeding of the high-frequency units is realized, the cost is saved, and the design complexity of the antenna is reduced.
Further, the first preset distance is a wavelength of a low-frequency signal transmitted in the third coaxial line.
From the above description, it can be known that, while maintaining high isolation of the antenna, the distance between the low frequency units is properly reduced, so that the overall size of the antenna is reduced, and a miniaturized design is realized.
Further, the second preset distance is a wavelength of a high-frequency signal transmitted in the coplanar waveguide transmission line.
From the above description, it can be seen that, while maintaining high isolation of the antenna, the distance between the high-frequency units is properly reduced, so that the overall size of the antenna is reduced, and a miniaturized design is realized.
Furthermore, a plurality of first low-frequency routing lines are arranged in the first low-frequency routing area;
the second low-frequency wiring area is provided with a plurality of second low-frequency wirings;
the first high-frequency wiring area is provided with a plurality of first high-frequency wirings;
the second high-frequency wiring area is provided with a plurality of second high-frequency wirings;
the sum of the lengths of the first low-frequency routing lines is greater than the sum of the lengths of the second low-frequency routing lines;
the sum of the lengths of the first high-frequency wirings is smaller than the sum of the lengths of the second high-frequency wirings;
the first low-frequency wires and the second low-frequency wires and the first high-frequency wires and the second high-frequency wires are connected through metalized through holes.
According to the description, the sum of the lengths of the low-frequency wires on one side of the PCB is greater than the sum of the lengths of the low-frequency wires on the other side of the PCB, the sum of the lengths of the high-frequency wires on one side of the PCB is less than the sum of the lengths of the high-frequency wires on the other side of the PCB, and the low-frequency wires and the high-frequency wires on the two sides are respectively connected through the metalized through holes, so that the high-frequency unit and the low-frequency unit meet the boundary condition of a half-wave dipole and can be excited by the corresponding high-frequency signal or low-frequency signal to radiate electromagnetic waves.
Another embodiment of the present invention provides a communication device, including the dual-band dual-feed antenna described above.
The antenna module can be applied to devices of a 5G millimeter wave communication system, such as handheld mobile devices, and the following description is made by way of specific embodiments:
example one
Referring to fig. 1-3, a dual-frequency dual-feed antenna includes a PCB board 1, a low-frequency oscillator 2, a high-frequency oscillator 3, a first coaxial line 4, a second coaxial line 5, a first low-frequency wiring area 6, a second low-frequency wiring area 7, a first high-frequency wiring area 8, and a second high-frequency wiring area 9;
the low-frequency oscillator 2 and the second coaxial line 5 are both positioned on one side of the PCB 1, and the high-frequency oscillator 3 and the first coaxial line 4 are both positioned on the other side of the PCB 1;
the first coaxial line 4 is connected with the high-frequency oscillator 3;
the second coaxial line 5 is connected with the low-frequency oscillator 2;
the first low-frequency wiring area 6 and the second low-frequency wiring area 7 are respectively arranged on two sides of the PCB 1 and are connected with the low-frequency oscillator 2;
the first high-frequency wiring area 8 and the second high-frequency wiring area 9 are respectively arranged on two sides of the PCB 1 and are connected with the high-frequency oscillator 3;
specifically, as shown in fig. 1 and 3, the coaxial cable further includes a third coaxial cable 10;
the low-frequency oscillator 2 comprises a plurality of low-frequency oscillators;
the distance between the low-frequency oscillators 2 is a first preset distance;
the first preset distance is a wavelength when a low-frequency signal is transmitted in the third coaxial line 10;
the low-frequency oscillators 2 are connected through the third coaxial line 10;
in an alternative embodiment, as shown in fig. 1, there are 2 low frequency oscillators 2, each of which includes a first low frequency oscillator 21 and a second low frequency oscillator 22, one end of the third coaxial line 10 is connected to the first low frequency oscillator 21, the other end of the third coaxial line is connected to the second low frequency oscillator 22, and the end of the first low frequency oscillator 21 not connected to the third coaxial line 10 is connected to the second coaxial line 5; the distance between the first low-frequency oscillator 21 and the second low-frequency oscillator 22 is one wavelength when low-frequency signals are transmitted in the third coaxial line;
as shown in fig. 2, further includes a coplanar waveguide transmission line 11;
the high-frequency oscillator 3 includes a plurality of high-frequency oscillators;
the distance between the high-frequency oscillators 3 is a second preset distance;
the second preset distance is a wavelength when the high-frequency signal is transmitted in the coplanar waveguide transmission line 11;
the high-frequency oscillators 3 are connected through the coplanar waveguide transmission line 11;
in an alternative embodiment, as shown in fig. 2, there are 3 high frequency oscillators 3, including a first high frequency oscillator 31, a second high frequency oscillator 32 and a third high frequency oscillator 33, where one end of the coplanar waveguide transmission line 11 is connected to the first high frequency oscillator 31, the other end is connected to the third high frequency oscillator 33, the second high frequency oscillator 32 is located between the first high frequency oscillator 31 and the third high frequency oscillator 33 and is connected to the coplanar waveguide transmission line 11, and the end of the first high frequency oscillator 31, which is not connected to the coplanar waveguide transmission line 11, is connected to the first coaxial line 4; the distance between the first high-frequency oscillator 31 and the second high-frequency oscillator 32 and the distance between the second high-frequency oscillator 32 and the third high-frequency oscillator 33 are both one wavelength of high-frequency signals transmitted in the coplanar waveguide transmission line 11;
the first low-frequency oscillator 21, the second low-frequency oscillator 22, the first high-frequency oscillator 31 and the third high-frequency oscillator 33 are all in a half-wave dipole form, and the second high-frequency oscillator 32 is a parasitic unit, so that the low-frequency oscillator 2 and the high-frequency oscillator 3 respectively form an array antenna with at least 2 antenna units, and the gain of the antenna is improved.
Example two
Referring to fig. 1-2 and 4-6, the difference between the present embodiment and the first embodiment is that specific structures of the low frequency routing area and the high frequency routing area are defined:
the first low-frequency wiring area 6 is arranged at the position, corresponding to the two ends of the low-frequency oscillator 2, on the one side of the PCB 1;
the second low-frequency wiring area 7 is arranged at the position, corresponding to the first low-frequency wiring area 6, on the other side of the PCB 1;
specifically, as shown in fig. 1-2, the first low-frequency routing area 6 is provided with a plurality of first low-frequency routing lines 61;
the second low-frequency wiring area 7 is provided with a plurality of second low-frequency wirings 71;
the sum of the lengths of the plurality of first low-frequency traces 61 is greater than the sum of the lengths of the plurality of second low-frequency traces 71;
the sum of the lengths of the first low-frequency wiring 61 and the second low-frequency wiring 71 belonging to the same low-frequency oscillator 21 is one half of the wavelength of a low-frequency band, so that the boundary condition of a half-wave dipole is met, and the half-wave dipole can be excited by a low-frequency signal to radiate electromagnetic waves;
in an alternative embodiment, the number of the first low-frequency traces 61 and the number of the second low-frequency traces 71 respectively correspond to the number of the low-frequency oscillators 2, and both are 2, as shown in fig. 1-2;
the second high-frequency wiring area 9 is arranged at the position, corresponding to the two ends of the high-frequency oscillator 3, on the other side of the PCB 1;
the first high-frequency wiring area 8 is arranged at a position, corresponding to the second high-frequency wiring area 9, on the one side of the PCB 1;
specifically, as shown in fig. 1-2, the first high-frequency wiring area 8 is provided with a plurality of first high-frequency wirings 81;
the second high-frequency wiring area 9 is provided with a plurality of second high-frequency wirings 91;
the sum of the lengths of the plurality of first high-frequency wirings 81 is less than the sum of the lengths of the plurality of second high-frequency wirings 91;
the sum of the lengths of the first high-frequency wiring 81 and the second high-frequency wiring 91 belonging to the same high-frequency oscillator 3 is one half of the wavelength of a high-frequency band, so that the boundary condition of a half-wave dipole is met, and the half-wave dipole can be excited by a high-frequency signal to radiate electromagnetic waves;
in an alternative embodiment, as shown in fig. 1-2, the number of the second high-frequency traces 91 corresponds to the number of the high-frequency oscillators 3, and is 3, while the number of the first high-frequency traces 81 corresponds to the number of the high-frequency oscillators 3 in the form of half-wave dipoles, and is 2, that is, the high-frequency traces of the high-frequency oscillators of the parasitic unit are only distributed on one side of the PCB;
the plurality of first low-frequency traces 61 and the plurality of second low-frequency traces 71 and the plurality of first high-frequency traces 81 and the plurality of second high-frequency traces 91 are connected through metallized via holes;
specifically, as shown in fig. 1-2, the first low-frequency traces 61 and the second low-frequency traces 71 belonging to the same low-frequency oscillator 2 in the plurality of first low-frequency traces 61 and the plurality of second low-frequency traces 71 are connected by at least 1 metalized via at one end of a single trace, and the first high-frequency traces 81 and the second high-frequency traces 91 belonging to the same high-frequency oscillator 3 in the plurality of first high-frequency traces 81 and the plurality of second high-frequency traces 91 are connected by at least 1 metalized via at one end of a single trace;
in an alternative embodiment, at least one group of the first low/high frequency trace and the second low/high frequency trace belonging to the same low/high frequency oscillator are connected only at one end of a single trace through at least 1 metallized via, the sum of the lengths of the first low/high frequency trace and the second low/high frequency trace belonging to the same low/high frequency oscillator is one half of the wavelength of the low/high frequency band, meanwhile, the other group or groups of the first low/high frequency trace and the second low/high frequency trace belonging to the same low/high frequency oscillator are connected at two ends of the single trace through at least 2 metallized vias, and the larger length of the first low/high frequency trace and the second low/high frequency trace belonging to the same low/high frequency oscillator is one half of the wavelength of the low/high frequency band, therefore, the sectional area of the wiring of the antenna module is increased, and the current distribution is diffused, so that wider bandwidth can be obtained, and the antenna bandwidth is expanded on the basis of improving the isolation of the antenna and realizing the miniaturization design;
fig. 4 is a schematic diagram of test data of the dual-band dual-feed antenna according to the embodiment of the present invention, in which S11 is a low-frequency 2.4GHz standing wave, S22 is a high-frequency 5GHz standing wave, and S21 is isolation, it can be seen that both the high-frequency standing wave and the low-frequency standing wave are less than 2, so that the antenna supports both low-frequency 2.4GHz and high-frequency 5GHz bands, and the isolation is greater than 20 dB;
fig. 5 is an E-plane actual measurement directional diagram of the dual-frequency dual-feed antenna at the low frequency of 2.4GHz, and fig. 6 is an E-plane actual measurement directional diagram of the dual-frequency dual-feed antenna at the high frequency of 5GHz, which shows that the maximum radiation direction of the antenna is on the horizontal plane, the gain is close to 5dBi, and the communication requirement can be met.
EXAMPLE III
A communication device comprising a dual-band dual-feed antenna as described in the first or second embodiment.
In summary, the dual-frequency and dual-feed antenna and the communication device provided by the utility model comprise a PCB board, a low-frequency oscillator, a high-frequency oscillator, a first coaxial line, a second coaxial line, a first low-frequency wiring area, a second low-frequency wiring area, a first high-frequency wiring area and a second high-frequency wiring area; the low-frequency oscillator and the second coaxial line are both positioned on one side of the PCB, and the high-frequency oscillator and the first coaxial line are both positioned on the other side of the PCB; the first coaxial line is connected with the high-frequency oscillator; the second coaxial line is connected with the low-frequency oscillator; the first low-frequency wiring area and the second low-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the low-frequency oscillator; the first high-frequency wiring area and the second high-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the high-frequency oscillator; the sum of the lengths of the first low-frequency routing lines is greater than the sum of the lengths of the second low-frequency routing lines; the sum of the lengths of the first high-frequency wirings is smaller than the sum of the lengths of the second high-frequency wirings; the first low-frequency wires and the second low-frequency wires and the first high-frequency wires and the second high-frequency wires are connected through the metalized through holes, so that the high-frequency unit and the low-frequency unit meet the boundary condition of a half-wave dipole and can be excited by corresponding high-frequency signals or low-frequency signals to radiate electromagnetic waves, the sectional area of the wires is increased by adjusting the lengths of the wires on two sides of the same low-frequency unit or high-frequency unit, the current distribution in the wires is more diffused, the bandwidth of the antenna is expanded, the high-frequency vibrators and the low-frequency vibrators are respectively printed on two sides of the PCB, the high-frequency wires and the low-frequency wires are uniformly distributed on two sides of the PCB, the size of the high-frequency unit and the low-frequency unit is effectively reduced, the distance between the tail ends of the high-frequency unit and the low-frequency unit is increased, the electromagnetic coupling is reduced, and the size of the antenna is reduced, the isolation of the antenna is improved.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to the related technical fields, are included in the scope of the present invention.
Claims (8)
1. A dual-frequency double-fed antenna is characterized by comprising a PCB (printed circuit board), a low-frequency oscillator, a high-frequency oscillator, a first coaxial line, a second coaxial line, a first low-frequency wiring area, a second low-frequency wiring area, a first high-frequency wiring area and a second high-frequency wiring area;
the low-frequency oscillator and the second coaxial line are both positioned on one side of the PCB, and the high-frequency oscillator and the first coaxial line are both positioned on the other side of the PCB;
the first coaxial line is connected with the high-frequency oscillator;
the second coaxial line is connected with the low-frequency oscillator;
the first low-frequency wiring area and the second low-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the low-frequency oscillator;
the first high-frequency wiring area and the second high-frequency wiring area are respectively arranged on two sides of the PCB and are connected with the high-frequency oscillator.
2. The dual-band dual-feed antenna of claim 1, wherein the first low-frequency routing region is disposed at a position corresponding to two ends of the low-frequency oscillator on the one side of the PCB;
the second low-frequency wiring area is arranged at the position, corresponding to the first low-frequency wiring area, on the other side of the PCB;
the second high-frequency wiring area is arranged at the position, corresponding to the two ends of the high-frequency oscillator, on the other side of the PCB;
and the position on one side of the PCB, which corresponds to the second high-frequency wiring area, is provided with the first high-frequency wiring area.
3. A dual-band dual-feed antenna as claimed in claim 1, further comprising a third coaxial line;
the low-frequency oscillator comprises a plurality of low-frequency oscillators;
the distance between the low-frequency oscillators is a first preset distance;
and the low-frequency oscillators are connected through the third coaxial line.
4. A dual-band dual-feed antenna as claimed in claim 1, further comprising a coplanar waveguide transmission line;
the high-frequency oscillator includes a plurality of high-frequency oscillators;
the distance between the high-frequency oscillators is a second preset distance;
and the high-frequency oscillators are connected through the coplanar waveguide transmission line.
5. A dual-band dual-feed antenna according to claim 3, wherein said first predetermined distance is a wavelength of low-frequency signals transmitted in said third coaxial line.
6. A dual-band dual-feed antenna as claimed in claim 4, wherein said second predetermined distance is a wavelength of high frequency signals transmitted in said coplanar waveguide transmission line.
7. A dual-band dual-feed antenna as claimed in claim 2, wherein said first low-frequency trace region has a plurality of first low-frequency traces;
the second low-frequency wiring area is provided with a plurality of second low-frequency wirings;
the first high-frequency wiring area is provided with a plurality of first high-frequency wirings;
the second high-frequency wiring area is provided with a plurality of second high-frequency wirings;
the sum of the lengths of the first low-frequency routing lines is greater than the sum of the lengths of the second low-frequency routing lines;
the sum of the lengths of the first high-frequency wirings is smaller than the sum of the lengths of the second high-frequency wirings;
the first low-frequency wires and the second low-frequency wires and the first high-frequency wires and the second high-frequency wires are connected through metalized through holes.
8. A communication device comprising a dual-band dual-feed antenna as claimed in any of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121251308.5U CN215896702U (en) | 2021-06-04 | 2021-06-04 | Double-frequency double-fed antenna and communication equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121251308.5U CN215896702U (en) | 2021-06-04 | 2021-06-04 | Double-frequency double-fed antenna and communication equipment |
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| Publication Number | Publication Date |
|---|---|
| CN215896702U true CN215896702U (en) | 2022-02-22 |
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| CN202121251308.5U Active CN215896702U (en) | 2021-06-04 | 2021-06-04 | Double-frequency double-fed antenna and communication equipment |
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2021
- 2021-06-04 CN CN202121251308.5U patent/CN215896702U/en active Active
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