CN112467362B - 5G dual-frequency antenna and communication terminal - Google Patents
5G dual-frequency antenna and communication terminal Download PDFInfo
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- CN112467362B CN112467362B CN202011408519.5A CN202011408519A CN112467362B CN 112467362 B CN112467362 B CN 112467362B CN 202011408519 A CN202011408519 A CN 202011408519A CN 112467362 B CN112467362 B CN 112467362B
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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
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/50—Structural association of antennas with earthing switches, lead-in devices or lightning protectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
- H01Q5/30—Arrangements for providing operation on different wavebands
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Abstract
The invention provides a 5G dual-frequency antenna and a communication terminal. This an antenna for short distance wireless communication, including master control circuit, base plate and set up in irradiator on the base plate, master control circuit is used for being connected to the control chip at terminal, the irradiator includes two radiating element, two radiating element symmetries set up, and two radiating element electricity respectively connect to master control circuit, two radiating element follow the base plate is in length direction's central line symmetry setting, realizes that terminal antenna has a plurality of feed points, a plurality of resonant frequency, realizes multipurpose wireless communication.
Description
Technical Field
The application relates to the technical field of antennas, in particular to a 5G dual-frequency antenna and a communication terminal.
Background
With the advent of the 5G era, wireless communication among various terminal devices increasingly depends on antennas, and transmission in frequency bands such as bluetooth, WiFi, zigbee and the like is realized, for example, a mobile terminal is connected to a WLAN, and data is transmitted end to end between mobile terminals, so that new requirements are provided for the antennas: the antenna has a plurality of feed points and a plurality of resonant frequencies to be suitable for multipurpose wireless communication of the terminal device.
The conventional terminal antenna is often a single resonant frequency and a single feed point, so that the antenna of the terminal has only one purpose, such as only realizing bluetooth transmission or only realizing Wifi connection. Therefore, a 5G dual-band antenna and a communication terminal are needed to solve the above technical problems in the prior art.
Disclosure of Invention
The application provides a 5G dual-frenquency antenna and communication terminal realizes that terminal antenna has a plurality of feed points, a plurality of resonant frequency, realizes multipurpose wireless communication.
The technical scheme adopted by the application is as follows: the utility model provides a 5G dual-band antenna, includes main control circuit, base plate and set up in irradiator on the base plate, main control circuit is used for being connected to the control chip of terminal, the irradiator includes two radiating element, two radiating element symmetries set up, and two radiating element electricity respectively connect to main control circuit, two radiating element are along the base plate sets up at length direction's central line symmetry.
Optionally, the dual-band antenna further includes a radio frequency circuit, the two radiation units are respectively connected to the main control circuit through the radio frequency circuit, after the main control circuit sends a first radio frequency signal to one of the two radiation units through the radio frequency circuit, the one of the two radiation units converts the first radio frequency signal into a first electromagnetic wave signal and sends the first electromagnetic wave signal to a space where the one of the two radiation units is located; one of the two radiation units converts a second electromagnetic wave signal into a second radio frequency signal after receiving the second electromagnetic wave signal, and sends the second radio frequency signal to the main control circuit through the radio frequency circuit.
Optionally, one of the two radio frequency units includes a first radiation area, a second radiation area, and a third radiation area, the second radiation area is disposed between the first radiation area and the third radiation area, the other of the two radiation units includes a fourth radiation area, a fifth radiation area, and a sixth radiation area, the first radiation area, the second radiation area, and the third radiation area are respectively the same as the fourth radiation area, the fifth radiation area, and the sixth radiation area in shape and are respectively symmetrically disposed, and the area of the first radiation area and the area of the fourth radiation area are respectively greater than the area of the second radiation area, the third radiation area, the area of the fifth radiation area, and the area of the sixth radiation area.
Optionally, a connection portion is disposed between the first end portion of the first radiation region and the first end portion of the fourth radiation region, the second end portion of the first radiation region is provided with a first feeding point, the second end portion of the fourth radiation region is provided with a second feeding point, the first feeding point and the second feeding point are electrically connected to the radio frequency circuit, the first main body region of the first radiation region and the second main body region of the fourth radiation region are disposed at an interval, and the second end portion of the first radiation region and the second end portion of the fourth radiation region are disposed at an interval.
Optionally, a first arc notch is formed at a first end of the first radiation area along a center line of the substrate in the length direction, a second arc notch is formed at a first end of the fourth radiation area along the center line, the first arc notch and the second arc notch are arcs of a same circle, and a center of the circle is on the center line.
Optionally, a first main body area of the first radiation area is provided with a first semicircular notch, a second main body area of the fourth radiation area is provided with a second semicircular notch, and the first semicircular notch and the second semicircular notch are symmetrically arranged relative to the central line.
Optionally, the second radiation zone includes a first segment and a second segment, the first segment and the second segment are configured to be L-shaped, the first segment is connected to the first end of the first radiation zone, the second segment is connected to the third radiation zone, the fifth radiation zone includes a third segment and a fourth segment, the third segment and the fourth segment are configured to be L-shaped, the third segment is connected to the first end of the fourth radiation zone, the fourth segment is connected to the sixth radiation zone, and the first segment extends along the direction of the center line.
Optionally, the third radiation zone includes a first large head region and a first small head region arranged along the direction of the central line, the area of the first small head region is smaller than that of the first large head region, the first small head region is connected to the second section of the second radiation zone, the first large head region is close to the first radiation zone, and a first linear notch is arranged at a position of the first large head region close to the first small head region;
the sixth radiation area comprises a second large head area and a second small head area which are arranged along the central line direction, the area of the second small head area is smaller than that of the second large head area, the second small head area is connected to the second section of the fifth radiation area, the second large head area is close to the third radiation area, a second linear notch is formed in the position, close to the second small head area, of the second large head area, the first large head area and the second large head area are symmetrically arranged relative to the central line, the first small head area and the second small head area are symmetrically arranged relative to the central line, and the first linear notch and the second linear notch are symmetrically arranged relative to the central line.
Optionally, a first square notch is disposed at an end of the first letter-shaped notch i close to the first big end region, a second square notch is disposed at an end of the second letter-shaped notch i close to the second big end region, and the first square notch and the second square notch are symmetrically disposed with respect to the central line.
In addition, the application also provides a terminal comprising the dual-frequency antenna.
By adopting the technical scheme, the application at least has the following technical effects:
the application provides a dual-band antenna includes master control circuit, base plate and sets up the irradiator on the base plate, and master control circuit is used for being connected to the control chip at terminal, and the irradiator includes two radiating element, and two radiating element symmetries set up to two radiating element electricity respectively connect to master control circuit, and two radiating element set up along the base plate at length direction's central line symmetry. The dual-frequency antenna changes the traditional technology that the antenna has only one feed point, realizes a plurality of resonant frequencies of the dual-frequency antenna with the dual feed point, can realize that the terminal can simultaneously receive antenna signals of various frequency bands, and realizes various wireless communication purposes.
Drawings
Fig. 1 is a schematic diagram of a 5G dual-band antenna according to an embodiment of the present application;
fig. 2 is a schematic perspective view of the 5G dual-band antenna shown in fig. 1;
fig. 3 is a schematic diagram of a 5G dual-band antenna according to another embodiment of the present application;
fig. 4 is a schematic diagram of a 5G dual-band antenna according to another embodiment of the present application;
fig. 5 is a schematic diagram of a 5G dual-band antenna according to another embodiment of the present application;
fig. 6 is a return loss diagram of a 5G dual-band antenna according to yet another embodiment of the present application;
fig. 7 is a chart of impedance circles of a 5G dual-band antenna according to yet another embodiment of the present application;
fig. 8 is a gain radiation diagram of a 5G dual-band antenna according to yet another embodiment of the present application;
1-a substrate; 10-a first radiation zone; 100-a first end of a first radiating area; 110-a first body region; 120-a second end of the first radiating area; 130-a first arc-shaped notch; 140-a first semicircular notch; 150-a connecting portion; 20-a second radiation zone; 200-a first section; 210-a second section; 30-a third radiation zone; 300-first large head area; 310 — first small head region; 320-a linear notch I; 330-first square notch; 331-a first rectangular indentation; 332-first boss-shaped indentation; 333-a first elliptical notch; 40-a fourth radiation zone; 400-a first end of a fourth irradiation zone; 410-a second body region; 420-a second end of the fourth radiation zone; 430-a second arc-shaped notch; 440-a second semicircular notch; 50-a fifth radiation zone; 500-a third section; 510-a fourth section; 60-a sixth radiation zone; 600-second big head region; 610-a second small head region; 620-a straight notch two; 630-a second square indentation; 631-a second rectangular indentation; 632-a second boss-shaped notch; 633-a second elliptical aperture; 70-a master control circuit; 80-a radio frequency circuit; 90-a first radio frequency transmission line; 91-second radio frequency transmission line.
Detailed Description
To further clarify the technical measures and effects taken by the present application to achieve the intended purpose, the present application will be described in detail below with reference to the accompanying drawings and preferred embodiments.
The application provides a 5G dual-frenquency antenna realizes that terminal antenna has a plurality of feed points, a plurality of resonant frequency, realizes multipurpose wireless communication. The 5G dual band antenna of the present application and its various parts will be described in detail below.
Example one
Referring to fig. 1 and 2, the 5G dual-band antenna provided by the present application includes a main control circuit 70, a substrate 1, and a radiator disposed on the substrate 1, where the main control circuit 70 is used for connecting to a control chip of a terminal, and the radiator includes two radiating units, the two radiating units are symmetrically disposed, and the two radiating units are respectively electrically connected to the main control circuit 70, and the two radiating units are symmetrically disposed along a center line of the substrate 1 in a length direction.
Aiming at the problems that the traditional antenna is single in feed point, single in resonance frequency and single in application, the application specification provides a dual-frequency antenna which is provided with the dual feed point, the multi-resonance frequency and multiple purposes.
The 5G dual-band antenna provided by the present specification includes a substrate 1, a radiator, and a main control circuit 70. The radiator is disposed on the substrate 1, and is electrically connected to the main control circuit 70 through a feeding point, and the radiator includes two radiating units, which are symmetrically disposed and electrically connected to the main control circuit 70 through respective feeding points. Therefore, the dual-frequency antenna has two feeding points, multiple resonant frequencies and multiple purposes, for example, the Bluetooth and the WiFi of the terminal can share the same dual-frequency antenna.
For example, the substrate 1 has a length of 16.45mm, a width of 8.4mm and a thickness of 0.6 mm. According to actual requirements, the substrate 1 may be a variety of carrier boards such as PCB, FPC, LDS, etc., and the thickness of the substrate 1 may also be adjusted according to actual conditions.
Referring to fig. 1 and fig. 2, in some embodiments, the dual-band antenna provided in this embodiment further includes a radio frequency circuit 80, the two radiation units are respectively connected to the main control circuit 70 through the radio frequency circuit 80, after the main control circuit 70 sends a first radio frequency signal to one of the two radiation units through the radio frequency circuit 80, the one of the two radiation units converts the first radio frequency signal into a first electromagnetic wave signal and sends the first electromagnetic wave signal to a space where the one of the two radiation units is located; one of the two radiating elements converts the second electromagnetic wave signal into a second radio frequency signal after receiving the second electromagnetic wave signal, and transmits the second radio frequency signal to the main control circuit 70 through the radio frequency circuit 80.
One of the two radiating elements referred to herein may be implemented as either of the two radiating elements. As shown in fig. 1 and 2, one of the two radiating elements is electrically connected to the radio frequency circuit 80 through a first radio frequency transmission line 90, the other of the two radio frequency elements is electrically connected to the radio frequency circuit 80 through a second radio frequency transmission line 91, and then the radio frequency circuit 80 is electrically connected to the main control circuit 70. If the first rf transmission line 90 is used for bluetooth transmission and the second rf transmission line 91 is used for WiFi transmission, the main control circuit 70 processes the received transmission signals according to different transmission protocols and sends the processed transmission signals to the control chip of the terminal. When a corresponding signal needs to be sent out, the main control circuit 70 uses a corresponding transmission protocol to process and then sends the corresponding transmission signal to the radio frequency circuit 80, the radio frequency circuit 80 sends the transmission signal to the corresponding first radio frequency transmission line or second radio frequency transmission line 91, and the corresponding radio frequency unit converts the radio frequency signal into an electromagnetic wave signal and sends the electromagnetic wave signal to the air. The main control circuit 70 processes the electric signals, the radio frequency circuit 80 converts the electric signals into radio frequency signals, and the radiation unit converts the radio frequency signals into electromagnetic wave signals.
Referring to fig. 1 and 2, in some embodiments, in the dual-band antenna provided by the present disclosure, one of the two radio frequency units includes a first radiation region 10, a second radiation region 20, and a third radiation region 30, the second radiation region 20 is disposed between the first radiation region 10 and the third radiation region 30, the other of the two radiation regions includes a fourth radiation region 40, a fifth radiation region 50, and a sixth radiation region 60, the first radiation region 10, the second radiation region 20, and the third radiation region 30 are respectively identical in shape to and respectively symmetrically disposed with the fourth radiation region 40, the fifth radiation region 50, and the sixth radiation region 60, and an area of the first radiation region 10 and an area of the fourth radiation region 40 are respectively larger than an area of the second radiation region 20, an area of the third radiation region 30, an area of the fifth radiation region 50, and an area of the sixth radiation region 60.
As shown in fig. 1 and 2, in the dual-band antenna provided in the present specification, one of the two radiation elements includes a first radiation region 10, a second radiation region 20, and a third radiation region 30; the other of the two radiating elements includes a fourth radiating area 40, a fifth radiating area 50 and a fifth radiating area 60. The first radiation zone 10 has the same shape as the fourth radiation zone 40 and is symmetrically disposed with respect to the center line O-O ', the second radiation zone 20 has the same shape as the fifth radiation zone 50 and is symmetrically disposed with respect to the center line O-O ', the third radiation zone 30 has the same shape as the sixth radiation zone 60 and is symmetrically disposed with respect to the center line O-O ',
referring to fig. 1 and 2, the length of the first radiation region 10 in the direction of the center line O-O 'is 7.6mm, which is about one sixteenth of the wavelength of the 2.44GHz dual-band antenna, and the width of the first radiation region 10 in the direction perpendicular to the center line O-O' is 3 mm. The total length of the first radiation region 10 and the fourth radiation region 40 is 15.2mm, which is about one quarter of the wavelength of the 5.78GHz dual-band antenna, and the area of the first radiation region 10 and the area of the fourth radiation region 40 are respectively larger than the area of the second radiation region 20, the area of the third radiation region 30, the area of the fifth radiation region 50, and the area of the sixth radiation region 60. The first radiation region 10 and the fourth radiation region 40 control the high-frequency resonant frequency of the dual-band antenna, and the high-frequency resonant frequency of the dual-band antenna is influenced by changing the sizes of the areas of the first radiation region 10 and the fourth radiation region 40.
Referring to fig. 1 and 2, the areas of the first radiation region 10 and the fourth radiation region 40 are larger than those of the other radiation regions, and the areas of the first radiation region 10 and the fourth radiation region 40 are the largest, which is beneficial to improving the radiation performance of the dual-band antenna.
Referring to fig. 1 and 2, in some embodiments, a connection portion 150 is disposed between a first end portion 100 of a first radiation region 10 and a first end portion 400 of a fourth radiation region 40, a second end portion 120 of the first radiation region 10 is provided with a first feeding point, a second end portion 420 of the fourth radiation region 40 is provided with a second feeding point, the first feeding point and the second feeding point are electrically connected to a radio frequency circuit 80, a first main body region 110 of the first radiation region 10 and a second main body region 410 of the fourth radiation region 40 are disposed at an interval, and a second end portion of the first radiation region 10 and a second end portion 420 of the fourth radiation region 40 are disposed at an interval.
Referring to fig. 1 and 2, the second end 120 of the first radiating region 10 and the second end 420 of the fourth radiating region 40 may be used as feeding regions, feeding points are disposed in the feeding regions, and two points of the feeding regions are used as feeding points and then electrically connected to the rf circuit 80 through the first rf transmission line 90 and the second rf transmission line 91, respectively. The fourth radiation zone 40 and the first radiation zone 10 are symmetrically disposed, a distance between the first body region 110 of the first radiation zone 10 and the second body region 410 of the fourth radiation zone 40 may be 1mm, and a distance between the second end portion of the first radiation zone 10 and the second end portion 420 of the fourth radiation zone 40 may be 1 mm.
Referring to fig. 1 and 2, in some embodiments, the present specification provides a dual-band antenna, in which a first end portion 100 of a first radiation region 10 is formed with a first arc notch 130 along a center line of a substrate 1 in a length direction, a first end portion 400 of a fourth radiation region 40 of the fourth radiation region 40 is formed with a second arc notch 430 along the center line, the first arc notch 130 and the second arc notch 430 are arcs of a same circle, and a center of the circle is on the center line.
The notch circles (the same circle formed by the first arc notch 130 and the second arc notch 430) formed in the first radiation area 10 and the fourth radiation area 40 can improve the return depth of the dual-band antenna at high frequency, and reduce return loss.
The radius of the notch circle is 1.15mm, and the nearest distance from the side of the first arc-shaped notch 130 close to the second end 120 of the first radiation zone 10 is 6.1 mm. The first end portion 100 of the first radiator region 10 is connected to the first end portion 400 of the fourth radiator region 40 through the connection portion 150 to be electrically connected to the fourth radiator region 40.
Referring to fig. 1 and 2, in some embodiments, the first body region 110 of the first radiation region 10 provided by the present disclosure is provided with a first semicircular notch 140, the second body region 410 of the fourth radiation region 40 is provided with a second semicircular notch 440, and the first semicircular notch 140 and the second semicircular notch 440 are symmetrically arranged with respect to a central line.
The closest distance of the first semicircular notch to the side of the second end 120 of the first radiating area 10 is 2.8mm, and the radius of the semicircular notch is 0.5 mm. The high-frequency resonant frequency of the dual-frequency antenna can be adjusted by changing the radius of the notch circle and the radius of the semicircular notch.
Referring to fig. 1 and 2, in some embodiments, the present specification provides a dual band antenna, in which the second radiation region 20 includes a first segment 200 and a second segment 210, the first segment 200 and the second segment 210 are configured in an L shape, the first segment 200 is connected to a first end of the first radiation region 10, the second segment 210 is connected to the third radiation region 30, the fifth radiation region 50 includes a third segment 500 and a fourth segment 510, the third segment 500 and the fourth segment 510 are configured in an L shape, the third segment 500 is connected to a first end 400 of the fourth radiation region 40, the fourth segment 510 is connected to the sixth radiation region 60, and the first segment 200 extends along a direction of a center line.
The first segment 200 may have a length of 8.25mm and a width of 0.5mm, and the second segment 210 may have a length of 3.15mm and a width of 0.5 mm.
Referring to fig. 1 and 2, the third radiation zone 30 includes a first large head area 300 and a first small head area 310 arranged along the centerline direction, the area of the first small head area 310 is smaller than that of the first large head area 300, the first small head area 310 is connected to the second section 210 of the second radiation zone 20, the first large head area 300 is close to the first radiation zone 10, and a first straight notch one 320 is arranged at a position of the first large head area 300 close to the first small head area 310;
the length of the third radiation zone 30 in the direction of the center line may be 7.75mm, wherein the width of the first small head area 310 may be 0.9mm and the width of the first large head area 300 may be 2.05 mm.
The sixth radiation zone 60 includes a second large head area 600 and a second small head area 610 arranged along the center line direction, the area of the second small head area 610 is smaller than that of the second large head area 600, the second small head area 610 is connected to the second section 210 of the fifth radiation zone 50, the second large head area 600 is close to the third radiation zone 30, a line-shaped notch two 620 is arranged at a position of the second large head area 600 close to the second small head area 610, the first large head area 300 and the second large head area 600 are symmetrically arranged with respect to the center line, the first small head area 310 and the second small head area 610 are symmetrically arranged with respect to the center line, and the line-shaped notch one 320 and the line-shaped notch two 620 are symmetrically arranged with respect to the center line.
The first large end area 300 is provided with a first notch 320 at a position close to the first small end area 310, and the purpose of the first notch 320 is to reduce return loss. The length of the I-shaped notch I320 can be 1.85mm, and the width can be 0.15 mm.
Optionally, an end of the in-line notch one 320 near the first large end area 300 is provided with a first square notch 330, an end of the in-line notch two 620 near the second large end area 600 is provided with a second square notch 630, and the first square notch 330 and the second square notch 630 are symmetrically arranged with respect to the center line.
The side length of the first square notch 330 may be 0.45mm, so that the first square notch 330 and the linear notch 320 form a hammer-shaped notch, which may effectively improve the performance of the dual-band antenna, such as the return loss. The first square notch 330 is spaced from the side of the first large head region by a distance of 3.8mm in the length direction. The sixth radiation zone 60 is the same shape as the third radiation zone 30 and is symmetrically disposed.
Referring to fig. 3, 4, and 5, which are schematic diagrams illustrating deformation structures of the first square notch 330 and the second square notch 630 according to an embodiment of the present application, the first square notch 330 may be a first rectangular notch 331, a first boss-shaped notch 332, and a first oval notch 333, and correspondingly, the second square notch 630 may be a second rectangular notch 631, a second boss-shaped notch 632, and a second oval notch 633.
Referring to fig. 6, the return loss of the dual-frequency antenna reaches-36.9373 dB when the first resonant frequency of the dual-frequency antenna is at 2.44GHz, and the bandwidth of the dual-frequency antenna with the return loss of more than-10 dB can reach 289.7MHz difference (the frequency at m3 minus the frequency at m 2), thereby completely covering 2.4GHz network frequency bands such as Bluetooth, WiFi, Zigbee and the like. The deeper return loss can reduce the loss of the dual-band antenna itself so that the dual-band antenna can radiate more energy into space.
Referring to fig. 6, the return loss of the dual-frequency antenna reaches-30.9195 dB at the second resonant frequency of the dual-frequency antenna at 5.78GHz, the bandwidth of the dual-frequency antenna with the return loss of above-10 dB can reach the difference of 304.4MHz (the frequency at m6 minus the frequency at m 5), and the dual-frequency antenna can be applied to 5G WiFi. The deeper return loss can reduce the loss of the dual-band antenna itself so that the dual-band antenna can radiate more energy into space.
Referring to fig. 7, the impedance at 2.44GHz of the first resonant frequency of the dual-frequency antenna is 51.44 Ω, the impedance at 5.78GHz of the second resonant frequency is 52.925 Ω, and both impedances are close to 50 Ω, which indicates that the dual-frequency antenna has good matching, and can reduce the loss of the dual-frequency antenna itself, so that the dual-frequency antenna can radiate more energy into space. Note: fig. 7 is a smith chart, and the parameters in the table of fig. 7 are all the values obtained by dividing the actual values by 50.
Referring to fig. 8, the gain of the E plane (the plane in which the maximum electric field is located) reaches maximum at 0 degrees and 180 degrees, which are 2.3082dBi and 2.2579dBi, respectively; the gain of the H-plane (the plane in which the maximum magnetic field lies) reaches 2.25dBi or more over the entire plane and 2.434dBi at 90 degrees.
Through above technical scheme, the dual-band antenna that this application provided includes master control circuit, base plate and sets up the irradiator on the base plate, and master control circuit is used for being connected to the control chip at terminal, and the irradiator includes two radiating element, and two radiating element symmetries set up to two radiating element electricity respectively connect to master control circuit, and two radiating element set up along the base plate at length direction's central line symmetry. The dual-frequency antenna changes the traditional technology that the antenna has only one feed point, realizes a plurality of resonant frequencies of the dual-frequency antenna with the dual feed point, can realize that the terminal can simultaneously receive antenna signals of various frequency bands, and realizes various wireless communication purposes.
Example two
On the basis of the above embodiments, the present application further provides a communication terminal including the 5G dual-band antenna described above. The 5G dual-band antenna comprises a main control circuit 70, a substrate 1 and a radiating body arranged on the substrate 1, wherein the main control circuit 70 is used for being connected to a control chip of a terminal, the radiating body comprises two radiating units, the two radiating units are symmetrically arranged, the two radiating units are respectively electrically connected to the main control circuit 70, and the two radiating units are symmetrically arranged along the central line of the substrate 1 in the length direction.
Aiming at the problems that the traditional antenna is single in feed point, single in resonance frequency and single in application, the application specification provides a dual-frequency antenna which is provided with the dual feed point, the multi-resonance frequency and multiple purposes.
The 5G dual-band antenna provided by the present specification includes a substrate 1, a radiator, and a main control circuit 70. The radiator is disposed on the substrate 1, and is electrically connected to the main control circuit 70 through a feeding point, and the radiator includes two radiating units, which are symmetrically disposed and electrically connected to the main control circuit 70 through respective feeding points. Therefore, the dual-frequency antenna has two feeding points, multiple resonant frequencies and multiple purposes, for example, the Bluetooth and the WiFi of the terminal can share the same dual-frequency antenna.
Through above technical scheme, the dual-band antenna that this application provided includes master control circuit, base plate and sets up the irradiator on the base plate, and master control circuit is used for being connected to the control chip at terminal, and the irradiator includes two radiating element, and two radiating element symmetries set up to two radiating element electricity respectively connect to master control circuit, and two radiating element set up along the base plate at length direction's central line symmetry. The dual-frequency antenna changes the traditional technology that the antenna has only one feed point, realizes a plurality of resonant frequencies of the dual-frequency antenna with the dual feed point, can realize that the terminal can simultaneously receive antenna signals of various frequency bands, and realizes various wireless communication purposes.
The foregoing and other objects, features and advantages of the invention will be apparent from the following more particular description of the preferred embodiments, as illustrated in the accompanying drawings.
Claims (8)
1. A5G dual-band antenna is characterized by comprising a main control circuit, a substrate, a radio frequency circuit and a radiator arranged on the substrate, the main control circuit is used for connecting to a control chip of a terminal, the radiator comprises two radiation units which are symmetrically arranged, and the two radiation units are respectively electrically connected to the main control circuit, the two radiation units are symmetrically arranged along the center line of the substrate in the length direction, the two radiation units are respectively connected to the main control circuit through the radio frequency circuit, the main control circuit sends a first radio frequency signal to one of the two radiation units through the radio frequency circuit, one of the two radiation units converts the first radio frequency signal into a first electromagnetic wave signal and sends the first electromagnetic wave signal to a space where one of the two radiation units is located; one of the two radiation units converts a second electromagnetic wave signal into a second radio frequency signal after receiving the second electromagnetic wave signal, and sends the second radio frequency signal to the main control circuit through the radio frequency circuit, one of the two radio frequency units comprises a first radiation area, a second radiation area and a third radiation area, the second radiation area is arranged between the first radiation area and the third radiation area, the other one of the two radiation units comprises a fourth radiation area, a fifth radiation area and a sixth radiation area, the first radiation area, the second radiation area and the third radiation area are respectively identical in shape with the fourth radiation area, the fifth radiation area and the sixth radiation area and are respectively symmetrically arranged, and the area of the first radiation area is respectively larger than the area of the second radiation area, the area of the third radiation area and the area of the fifth radiation area, The area of the fourth radiation area is respectively larger than the areas of the second radiation area, the third radiation area, the fifth radiation area and the sixth radiation area.
2. The dual-band antenna of claim 1, wherein a connection portion is disposed between a first end of the first radiation region and a first end of the fourth radiation region, a first feeding point is disposed at a second end of the first radiation region, a second feeding point is disposed at a second end of the fourth radiation region, the first feeding point and the second feeding point are electrically connected to the rf circuit, respectively, a first main body region of the first radiation region and a second main body region of the fourth radiation region are disposed at an interval, and the second end of the first radiation region and the second end of the fourth radiation region are disposed at an interval.
3. The dual-band antenna of claim 2, wherein the first end of the first radiating area is formed with a first arc-shaped notch along a center line of the substrate in a length direction, the first end of the fourth radiating area is formed with a second arc-shaped notch along the center line, the first arc-shaped notch and the second arc-shaped notch are arcs of a circle, and a center of the circle is located on the center line.
4. The dual-band antenna of claim 3, wherein the first body region of the first radiating region is provided with a first semicircular notch, and the second body region of the fourth radiating region is provided with a second semicircular notch, and the first semicircular notch and the second semicircular notch are symmetrically arranged with respect to the center line.
5. The dual-band antenna according to any one of claims 2 to 4, wherein the second radiation zone includes a first segment and a second segment, the first segment and the second segment are configured in an L-shape, the first segment is connected to the first end of the first radiation zone, the second segment is connected to the third radiation zone, the fifth radiation zone includes a third segment and a fourth segment, the third segment and the fourth segment are configured in an L-shape, the third segment is connected to the first end of the fourth radiation zone, the fourth segment is connected to the sixth radiation zone, and the first segment extends in the direction of the center line.
6. The dual-band antenna of claim 5, wherein the third radiating area comprises a first large head area and a first small head area arranged along the direction of the center line, the area of the first small head area is smaller than that of the first large head area, the first small head area is connected to the second segment of the second radiating area, the first large head area is close to the first radiating area, and a first I-shaped notch is arranged at the position of the first large head area, which is close to the first small head area;
the sixth radiation area comprises a second large head area and a second small head area which are arranged along the direction of the central line, the area of the second small head area is smaller than that of the second large head area, the second small head area is connected to the second section of the fifth radiation area, the second large head area is close to the third radiation area, a second linear notch is arranged at the position, close to the second small head area, of the second large head area, the first large head area and the second large head area are symmetrically arranged relative to the central line, the first small head area and the second small head area are symmetrically arranged relative to the central line, and the first linear notch and the second linear notch are symmetrically arranged relative to the central line.
7. The dual-band antenna of claim 6, wherein an end of the first in-line notch near the first large end area is provided with a first square notch, an end of the second in-line notch near the second large end area is provided with a second square notch, and the first square notch and the second square notch are symmetrically arranged with respect to the center line.
8. A terminal, characterized in that it comprises a dual-band antenna according to any one of claims 1 to 7.
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| CN202011408519.5A CN112467362B (en) | 2020-12-03 | 2020-12-03 | 5G dual-frequency antenna and communication terminal |
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| CN202011408519.5A CN112467362B (en) | 2020-12-03 | 2020-12-03 | 5G dual-frequency antenna and communication terminal |
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| CN112467362B true CN112467362B (en) | 2021-10-29 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207559035U (en) * | 2017-12-14 | 2018-06-29 | 北京偶极通信设备有限责任公司 | Dual-band and dual-feed point high-gain aerial and mimo antenna module |
| WO2020195553A1 (en) * | 2019-03-27 | 2020-10-01 | 株式会社村田製作所 | Antenna device and electronic apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102067380A (en) * | 2008-05-19 | 2011-05-18 | 盖尔创尼克斯有限公司 | Conformable antenna |
| CN107623175A (en) * | 2016-07-15 | 2018-01-23 | 深圳市共进电子股份有限公司 | WIFI antennas |
| TWI618296B (en) * | 2017-03-15 | 2018-03-11 | 智易科技股份有限公司 | Antenna structure |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN207559035U (en) * | 2017-12-14 | 2018-06-29 | 北京偶极通信设备有限责任公司 | Dual-band and dual-feed point high-gain aerial and mimo antenna module |
| WO2020195553A1 (en) * | 2019-03-27 | 2020-10-01 | 株式会社村田製作所 | Antenna device and electronic apparatus |
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