CN107464999B - Dual-coupling multi-band broadband monopole antenna and signal coupling method thereof - Google Patents
Dual-coupling multi-band broadband monopole antenna and signal coupling method thereof Download PDFInfo
- Publication number
- CN107464999B CN107464999B CN201610390253.3A CN201610390253A CN107464999B CN 107464999 B CN107464999 B CN 107464999B CN 201610390253 A CN201610390253 A CN 201610390253A CN 107464999 B CN107464999 B CN 107464999B
- Authority
- CN
- China
- Prior art keywords
- signal
- coupling
- wire
- frequency
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000010168 coupling process Methods 0.000 title claims abstract description 150
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 135
- 230000005404 monopole Effects 0.000 title claims abstract description 48
- 230000008878 coupling Effects 0.000 claims abstract description 109
- 238000000034 method Methods 0.000 claims abstract description 15
- 230000008054 signal transmission Effects 0.000 claims abstract description 15
- 230000005855 radiation Effects 0.000 claims description 16
- 239000000758 substrate Substances 0.000 claims description 12
- 230000009977 dual effect Effects 0.000 claims description 10
- 238000000926 separation method Methods 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 8
- 238000005192 partition Methods 0.000 claims description 7
- 238000005452 bending Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 description 16
- 230000007774 longterm Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 238000013461 design Methods 0.000 description 5
- 238000010295 mobile communication Methods 0.000 description 5
- 241000251730 Chondrichthyes Species 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000011160 research Methods 0.000 description 2
- 241001659863 Panna Species 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Images
Classifications
-
- 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
- H01Q5/50—Feeding or matching arrangements for broad-band or multi-band operation
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
Landscapes
- Details Of Aerials (AREA)
Abstract
The invention provides a broadband monopole antenna with double coupling and multiple frequency bands and a signal coupling method thereof, wherein two opposite sides of an insulating bracket are respectively provided with a positioning space and a fixing space for assembling a grounding wire at the positioning space on one side of the insulating bracket, the top of the grounding wire is provided with a coupling side which extends in a bending shape and spans to the top of the fixing space on the other side, the bottom of the grounding wire is provided with a reference grounding surface with a larger area at the bottoms of the insulating bracket and a signal wire, the signal wire is assembled at the fixing space of the insulating bracket, the top of the signal wire is provided with a coupling part which extends to the coupling side adjacent to the grounding wire and forms a preset interval, and the bottom of the signal wire is provided with a signal feed-in part which extends in a turning way and can be electrically connected with an external preset signal transmission wire, so that the aim of obtaining a larger working frequency band is achieved through a direct feed-in method.
Description
Technical Field
The invention relates to a broadband monopole antenna with double coupling and multiple frequency bands and a signal coupling method thereof, in particular to a monopole antenna capable of obtaining larger working bandwidth, which achieves double-frequency resonance by shielding a signal line by a grounding wire and achieves the purpose of increasing the working bandwidth of the antenna by means of the grounding double-coupling fed monopole antenna.
Background
According to the development of the advanced high-tech era, the wireless transmission interface of the wireless communication is improved, and the wireless transmission interface is also evolved from the early second-generation (2G, 3G) mobile communication system to the fourth-generation (4G) mobile communication system, and the long term evolution technology (Long Term Evolution, LTE) is one of the fourth-generation communication systems, and the operation of the long term evolution technology (LTE) has a higher data transmission amount, and the frequency bandwidth of the operation of the LTE is approximately divided into the following types: the operation bandwidth of LTE 700 is 698MHz-787MHz; the operation bandwidth of LTE Band40 is 2300MHz-2400MHz; the operation bandwidth of LTE Band38 is 2570MHz-2620MHz; also, since LTE is regarded as a mainstream specification of the next-generation mobile communication device, many LTE related technologies have been developed.
The popularity of the communication electronic products is also greatly changed in daily life work and rest modes of people no matter men, women, old and young people almost reach the situation of one person, however, when the communication electronic products transmit wireless signals, the wireless signals must be transmitted and received through the Antenna, so the quality of the Antenna of the communication electronic products is very important, whether the quality of the wireless signal receiving and transmitting of the communication electronic products is good or not is directly influenced, and in various communication electronic products, the portable electronic devices (such as smart mobile phones, tablet computers, notebook computers or global satellite navigation machines (GPS) and the like) or the wireless signal transmission devices (such as APs or wireless network cards (Card buses) and the like) are oriented to light, thin, short and small design modes so as to meet the requirements of the light and handy design of the communication electronic products, such as Planar inverted-F Antenna (a) or Monopole Antenna (panna) arranged in the portable electronic devices are conveniently carried and applied in various portable electronic devices.
In addition, during the running of a general vehicle, various wireless signals such as Amplitude Modulation (AM) or Frequency Modulation (FM), wireless television programs watching or satellite signals can be received through an antenna; however, in early days, the vehicle antenna adopts a single rod type, is obliquely arranged on the roof to adjust the angle of the received wireless signal, and generates strong wind resistance when the vehicle runs at high speed, so that the single rod type antenna is long rod-shaped and has poor strength, namely, when the vehicle is influenced by strong wind resistance and wind pressure, the single rod type antenna is easily bent or deformed under the influence of strong wind, namely, the quality of the received wireless signal is influenced to be poor; therefore, industry researches and develops shark fin type automobile antennas, and the shark fin type automobile antennas are widely applied to automobiles for receiving wireless signals through a sharp cone-shaped appearance design to form a good diversion effect so as to reduce wind resistance and wind cutting.
When the antenna is installed in a larger metal plane (such as the roof or the ground plane of an automobile), the low-frequency operating bandwidth of the antenna can only have a bandwidth utilization rate of 10%, and the high-frequency operating bandwidth can only have a bandwidth utilization rate of 8%, which cannot meet the bandwidth requirement of the fourth-generation mobile communication system (4G LTE) nowadays, and the radiation rate cannot reach the standard above 40%, so that the antenna cannot adapt to the multi-frequency and broadband antenna application modes of various environments, resulting in bandwidth reduction affecting the wireless signal reception.
Therefore, how to solve the problems and troubles that the current monopole antenna cannot increase its operation bandwidth, and the radiation rate cannot meet the standards of the wireless communication system, is the direction of research and improvement for manufacturers involved in the industry.
Disclosure of Invention
Therefore, the inventor has collected related data in view of the above-mentioned problems and disadvantages, and has made various evaluations and consideration, and have made various years of experience accumulated in the industry, through continuous trial and modification, designed such monopole antenna capable of achieving dual-band resonance and increasing the working bandwidth of the antenna, and bent the ground wire to mask the signal line, so that the dual-coupling multi-band wideband monopole antenna and the signal coupling method thereof for achieving multi-band operation of the antenna are invented.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a dual-coupled multi-band broadband monopole antenna, characterized by: including insulating support, earth connection and signal line, wherein:
the insulating bracket is provided with a positioning space and a fixing space on two opposite sides respectively;
the grounding wire is assembled at a positioning space on one side of the insulating bracket, the top of the grounding wire is provided with a coupling side which extends to the top of the fixed space on the other side in a bent shape, and the bottom of the grounding wire is provided with a reference grounding surface positioned at the bottom of the insulating bracket; and
The signal wire is assembled in a fixed space on the insulating support opposite to the other side of the grounding wire, the top is provided with a coupling part which extends to the coupling side of the grounding wire to form adjacent separation preset intervals, and the bottom is provided with a signal feed-in part which extends in a turning way.
The dual-coupling multi-band broadband monopole antenna comprises: the insulating support comprises a substrate and a frame seat which protrudes outwards from one side surface of the substrate, and is used for respectively assembling a grounding wire and a signal wire in a positioning space and a fixing space of two opposite outer side edges of the frame seat.
The dual-coupling multi-band broadband monopole antenna comprises: the substrate is provided with a plurality of frame seats with criss-cross partition boards facing outwards and outwards, a vertical positioning space is arranged on the outer side of the frame seat, a plurality of transverse partition boards for abutting and positioning the grounding wire are arranged on the side edge of the positioning space, a positioning abutting body for abutting against the top surface of the grounding wire is arranged on the top of the positioning space, an inclined fixing space is arranged on the other side of the frame seat relative to the positioning space, a limiting abutting body for abutting against the coupling side of the grounding wire is arranged on the top of the fixing space, a fixing abutting body for abutting against the coupling part of the signal wire is arranged on the top of the fixing space, and a fixing abutting seat for supporting the signal feed-in part of the signal wire is arranged on the bottom of the fixing space.
The dual-coupling multi-band broadband monopole antenna comprises: the grounding wire is in a 7 shape, the top of the grounding wire is continuously bent and extended to form a coupling side in an inclined shape, the bottom of the grounding wire is connected with a reference grounding surface, the signal wire is provided with a coupling part with the same inclination angle as the coupling side, and the coupling side and the coupling part are provided with adjacent separation preset intervals which are not contacted by a fixed supporting body, and the preset intervals of the adjacent separation are the thickness of the fixed supporting body; the reference ground plane at the bottom of the ground wire can be electrically connected with the metal shell, the ground side of the circuit board or the metal body of the automobile.
The dual-coupling multi-band broadband monopole antenna comprises: the signal line is provided with a coupling part extending upwards from one side of the signal feed-in part in an inclined way, and a signal feed-in point for electrically connecting a preset signal transmission line is arranged on the side edge of the signal feed-in part of the adjacent coupling part in an outward protruding way.
The invention also provides a double-coupling multi-band broadband monopole antenna signal coupling method, which is characterized by comprising the following steps of: the signal coupling method comprises the steps of:
(A) The signal wire on one side of the insulating support is used as a high-frequency radiation path, and the wavelength of the high-frequency signal is close to one quarter of the high-frequency working frequency band;
(B) The other side of the insulating bracket is connected with a ground wire by a low-frequency radiation path, and the wavelength of the low-frequency signal is close to one fourth of the low-frequency working frequency band;
(C) The top of the grounding wire is provided with a coupling side, so that the coupling side extends to the outside of a coupling part arranged at the top of the signal wire at the other side to form a shade, and a preset interval is formed between the coupling side and the coupling part;
(D) By a direct feed-in method, a reference ground plane with a larger area is arranged at the bottom of the ground wire and is positioned below the bottom of the insulating bracket and a signal feed-in part arranged on the signal wire;
(E) The ground wire and the signal wire form double-frequency resonance to form a grounded double-coupling feed monopole antenna, and the monopole antenna is used for increasing the working bandwidth of the antenna.
The double-coupling multi-band broadband monopole antenna signal coupling method comprises the following steps: the high frequency signal wavelength and the low frequency signal wavelength are calculated with respect to the center frequency of the operating frequency band.
The double-coupling multi-band broadband monopole antenna signal coupling method comprises the following steps: the operating Band is the LTE Band, and the low frequency operating Band (LTE Band 40) is: 2300MHz-2400MHz; the operating Band for high frequencies (LTE Band 38) is: 2570MHz-2620MHz.
The double-coupling multi-band broadband monopole antenna signal coupling method comprises the following steps: the signal line in the step (C) extends vertically upwards from the reference ground plane, and the coupling part of the signal line is shielded by the coupling side, and the line width of the ground line and the line width of the signal line are adjusted to obtain larger low-frequency working bandwidth.
The double-coupling multi-band broadband monopole antenna signal coupling method comprises the following steps: the coupling part of the signal wire and the coupling side of the grounding wire form a first coupling section, the signal feed-in part of the signal wire and the reference grounding surface form a second coupling section, the signal feed-in part of the signal wire is provided with a signal feed-in point electrically connected with an external preset signal transmission wire, and the preset signal transmission wire is utilized to form a double-coupling structure for the signal wire and the grounding wire by a direct feed-in method so as to increase the working frequency band of the antenna and assist in adjusting impedance matching so as to obtain larger high-frequency working frequency bandwidth.
The broadband monopole antenna has the main advantages that a positioning space and a fixing space are respectively arranged on two opposite sides of an insulating support, so that a grounding wire is assembled in the positioning space on one side of the insulating support, a coupling side is arranged at the top of the grounding wire and extends in a bent shape to cross to the top of the fixing space on the other side, a reference grounding surface with a larger area is arranged at the bottom of the grounding wire and is positioned at the bottoms of the insulating support and a signal wire, the signal wire is assembled in the fixing space of the insulating support, the top of the signal wire is provided with a coupling part which extends to the coupling side adjacent to the grounding wire and forms a preset interval, the bottom is provided with a signal feed-in part which extends in a turning mode, and a signal feed-in point protruding from one side of the signal feed-in part can be electrically connected with an external preset signal transmission wire, so that the aim of obtaining a larger working frequency band is achieved through a direct feed-in method.
The invention has the secondary advantages that the insulating bracket comprises a base plate and a frame seat which is outwards and outwards arranged from one side of the base plate, a plurality of crisscross partition boards are outwards and outwards arranged from one side of the base plate, a vertical positioning space is arranged at one side of the frame seat, an inclined fixing space is arranged at the other side of the frame seat, a positioning supporting body is outwards and inwards arranged at the top of the positioning space at one side of the frame seat, a relative limiting supporting body and a fixing supporting body are outwards and inwards arranged at the top of the fixing space, a fixing supporting seat is outwards arranged at the bottom of the fixing space, so that a grounding wire is assembled at the positioning space at one side of the frame seat, the bending part of the top of the grounding wire is pressed and limited by the positioning supporting body, the coupling side which extends after the top of the grounding wire is continuously bent is extended to the limiting supporting body at the top of the fixing space at the other side of the insulating bracket, a larger area of the bottom of the grounding wire is positioned at the lower part of the signal feed-in part of the insulating bracket, the signal wire is assembled at the fixing space of the fixing support, the inclined coupling part of the top of the signal wire is extended to the inner side of the fixing space, the signal wire is positioned at the bottom of the fixing supporting body, the signal feed-in the fixing space, the coupling part is formed by the coupling part of the signal wire and the coupling part and the grounding wire is in a proper contact with the two-phase of the bottom of the signal feed wire and the two-phase-separated coupling parts and the bottom of the grounding wire and the two-phase-separated from the bottom wire and the bottom of the signal wire and the fixed wire and the bottom-phase-separated from the bottom to form a proper phase-separated signal phase position; the monopole antenna has small whole volume and easy installation, and can meet the design requirements of light, thin, short and small communication electronic products.
The invention has the other advantages that the grounding wire and the signal wire are respectively assembled at two sides of the insulating bracket, and the coupling side which is continuously bent from the top of the grounding wire and is inclined extends to the outer side of the coupling part of the signal wire at the other side, and the coupling side and the coupling part keep proper spacing and are not contacted, so that a first coupling section is formed, and the line widths of the signal wire and the grounding wire are adjusted to obtain larger low-frequency working bandwidth; the signal feed-in part at the bottom of the signal wire and the reference ground plane form a second coupling section for forming a double coupling structure between the ground wire and the signal wire so as to increase the working frequency band of the antenna and assist in adjusting the impedance matching so as to obtain a larger high-frequency working bandwidth.
The present invention is further advantageous in that a larger operating bandwidth is obtained between the ground line and the signal line through a dual-coupling structure, and the operating bandwidth is a low-frequency operating Band (LTE Band 40: 2300MHz-2400 MHz) conforming to a long term evolution (Long Term Evolution, LTE) Band, and a high-frequency operating Band (LTE Band 38: 2570MHz-2620 MHz) for the preferred embodiment of the present invention.
Drawings
Fig. 1 is a flow chart of the steps of the present invention.
Fig. 2 is a perspective view of the present invention.
Fig. 3 is a perspective view of another view of the present invention.
Fig. 4 is an exploded perspective view of the present invention.
Fig. 5 is an exploded perspective view of another view of the present invention.
Fig. 6 is an antenna impedance matching diagram of the present invention.
Fig. 7 is a side view of the present invention.
Fig. 8 is a perspective view of the preferred embodiment of the present invention.
Fig. 9 is an enlarged view of a portion a of fig. 8 in accordance with the present invention.
Reference numerals illustrate: 1-an insulating bracket; 11-a substrate; 12-a frame base; 121-a separator; 122-positioning space; 1221-positioning an abutment; 123-fixed space; 1231-limiting supporting body; 1232-a fixed abutment; 1233-a fixed abutment; 2-a ground wire; 21-a reference ground plane; 22-side uprights; 23-coupling side; 3-signal lines; 31-a signal feed-in part; 311-signal feed point; a 32-coupling; 4-a first coupling section; 5-a second coupling section; 6-signal transmission lines.
Detailed Description
To achieve the above objects and advantages, in accordance with the purpose of the invention, as well as in the structure and method of practicing the invention, a detailed description of the features and functions of the preferred embodiment of the invention is provided below, so as to provide a thorough understanding.
Referring to fig. 1, 2, 3, 4 and 5, which are a step flow chart, a perspective view of another view, a perspective exploded view, and a perspective exploded view of another view, it can be clearly seen that the dual-coupling multi-band wideband monopole antenna of the present invention includes an insulating bracket 1, a ground line 2 and a signal line 3, wherein:
the insulating support 1 comprises a substrate 11 and a frame seat 12 protruding from one side of the substrate 11, wherein the frame seat 12 protrudes outwards from one side of the substrate 11 to form a plurality of vertically and horizontally staggered partition plates 121, a positioning space 122 is formed at the outer side of the plurality of horizontally arranged partition plates 121 on one side, a positioning supporting body 1221 is convexly arranged at the top of the positioning space 122, an inclined fixing space 123 is arranged at the other side of the frame seat 12 relative to the positioning space 122, a limiting supporting body 1231 and a fixing supporting body 1232 which are vertically relative and staggered at intervals are convexly arranged at the top of the fixing space 123, and a fixing supporting seat 1233 is convexly arranged at the bottom of the fixing space 123.
The ground wire 2 has a reference ground plane 21 with a larger area, and a side vertical plate 22 extends vertically upwards from one side of the reference ground plane 21, and a coupling side 23 extends obliquely after continuously bending at the top of the side vertical plate 22.
The signal line 3 has a signal feed-in portion 31 extending horizontally and laterally, a signal feed-in point 311 is protruded from one side of the signal feed-in portion 31, and a coupling portion 32 is disposed at the other side of the signal feed-in portion 31 adjacent to the signal feed-in point 311 and extends obliquely upward.
When the above components are assembled, the positioning space 122 at the side of the frame 12 at one side of the substrate 11 of the insulating support 1 is utilized to assemble the side vertical plate 22 of the ground wire 2, the larger area of the reference ground plane 21 at the bottom of the side vertical plate 22 is located at the bottom of the insulating support 1, the bent position at the top of the side vertical plate 22 is pressed by the positioning support 1221, the coupling side 23 extending obliquely spans to the top of the other side fixing space 123 and is supported by the limiting support 1231, the coupling side 23 spans to the outside of the fixing support 1232, the signal wire 3 is assembled in the fixing space 123, the signal feed-in part 31 is assembled on the fixing support 1233 by utilizing the signal wire 3 bottom signal feed-in part 31, the signal feed-in part 311 extends out of the fixing support 1233, the coupling part 32 extending obliquely from the top of the signal wire 3 extends to the inner side of the fixing support 2 at the top, the coupling part 32 is formed by the fixing support 1232 and forms a preset adjacent preset spacing with the coupling side 23, the coupling side 23 can be coupled with the signal wire 3 in a plurality of adjacent frequency bands and can be coupled with the antenna 2 in a same frequency band by the same angle, and the signal frequency band can be coupled with the antenna 2 in a different frequency band and the same as that the signal band is coupled by the coupling side 23.
The bottom of the insulating support 1 is covered by the reference ground plane 21, and the coupling side 23 of the ground wire 2 extends to the coupling portion 32 of the signal wire 3 at the fixed space 123, so that a first coupling section 4 is formed at the coupling side 23 and the coupling portion 32, and a second coupling section 5 is formed between the signal feed-in portion 31 and the reference ground plane 21 at the bottom of the signal wire 3; in order to achieve the double-frequency resonance effect, the signal wire 3 is used as a high-frequency radiation path, and the radiation wavelength of the high-frequency signal is close to one quarter wavelength of a high-frequency working frequency band; then the grounding wire 2 is used as a low-frequency radiation path, so that the radiation wavelength of the low-frequency signal is one quarter of the length of a low-frequency working frequency band; the wavelength of the low-frequency working frequency band and the wavelength of the high-frequency working frequency band are calculated by the center frequency of the corresponding low-frequency and high-frequency working frequency bands.
Furthermore, the preferred embodiment of the wideband operating Band of the monopole antenna of the present invention is the LTE Band of long term evolution (Long Term Evolution, LTE), and the low frequency operating Band (LTE Band 40) is: 2300MHz-2400MHz; the operating Band for high frequencies (LTE Band 38) is: 2570MHz-2620MHz; then, by using the wideband frequency band as the application of the preferred embodiment of the present invention (refer to fig. 6), a good multi-band mobile communication signal can be obtained between the low frequency operating band 2300MHz-2400MHz to the high frequency operating band 2570MHz-2620MHz (as the frequency band of the range indicated by the dashed line frame in fig. 6); and between each working frequency band of low frequency and high frequency, the 3D radiation efficiency of the antenna is respectively:
as shown in the table, the radiation efficiency of each working frequency band of the dual-frequency multi-band monopole antenna is between 51.15% and 69.77%, and the radiation efficiency exceeds the standard that the radiation rate required by LTE broadband is more than 40%, so that the larger working frequency bandwidth of the multi-frequency band can be obtained, and good signal transmission quality can be obtained.
The coupling side 23 extending obliquely from the side vertical plate 22 extending vertically from the side of the reference ground plane 21 of the ground wire 2 is shaped like 7, the coupling side 23 is used as the coupling part 32 extending to the fixed space 123 of the insulating bracket 1 and covered on the signal wire 3, so that the coupling side 23 and the coupling part 32 are inclined at the same angle, and the coupling side 23 and the coupling part 32 are separated by a predetermined distance which is not contacted by the fixed supporting body 1232, the predetermined distance is the thickness of the fixed supporting body 1232, the first coupling section 4 formed by covering the signal wire 3 by the ground wire 2 is achieved, the line width of the ground wire 2 and the signal wire 3 can be adjusted to obtain a larger low-frequency working bandwidth, the second coupling section 5 formed between the signal feeding part 31 of the signal wire 3 and the reference ground plane 21 is utilized, the effect of increasing the working bandwidth of the antenna can be achieved by adjusting the distance between the signal feeding part 31 and the reference ground plane 21, and the impedance can be assisted to be adjusted to obtain a larger multi-frequency bandwidth matching purpose and further achieve the purpose of using the dual-frequency bandwidth.
The insulating bracket 1 of the present invention, and the ground line 2 and the signal line 3 assembled on two opposite sides of the insulating bracket 1, have the following signal coupling method:
(A) The signal line 3 assembled on one side of the insulating support 1 is used as a high-frequency radiation path, and the wavelength of the high-frequency signal is close to one quarter of the high-frequency working frequency band.
(B) The grounding wire 2 assembled on the other side of the insulating support 1 is a low-frequency radiation path, and the wavelength of a low-frequency signal is close to one fourth of the low-frequency working frequency band.
(C) And the top of the grounding wire 2 is provided with a coupling side 23 in an inclined extending way after being continuously bent, so that the coupling side 23 extends to the outside of a coupling part 32 arranged at the top of the signal wire 3 positioned at the other side of the insulating bracket 1 to form a shade, and the coupling side 23 and the coupling part 32 form adjacent separation preset intervals through a fixed supporting body 1232.
(D) By the direct feeding method, the reference ground plane 21 with a larger area is arranged at the bottom of the ground wire 2 and is positioned below the signal feeding part 31 arranged at the bottom of the insulating bracket 1 and the signal wire 3.
(E) The grounding wire 2 and the signal wire 3 form double-frequency resonance to form a monopole antenna similar to a grounding double-coupling feed-in antenna, and the monopole antenna is used for increasing the working bandwidth of the antenna so as to achieve the aim of multi-frequency operation.
The larger area of the ground wire 2 can be electrically connected to a metal housing of a communication electronic product or a ground side of a circuit board, and the like, and particularly can be electrically connected to a vehicle body of an automobile or a metal housing of a vehicle, and the like, so that the shark fin antenna can be applied to the ground wire 2 to achieve a good grounding effect, while the communication electronic product can be a portable electronic device (such as a smart phone, a tablet computer, a notebook computer, a global satellite navigator (GPS), or the like) or a wireless signal transmission device (such as an AP or a wireless network Card (Card Bus), or the like), and the monopole antenna formed by the insulating bracket 1, the ground wire 2 and the signal wire 3 has a small overall size and is easy to be installed on the communication electronic product, so as to meet the light, thin, short and small design requirements of the communication electronic product.
Referring to fig. 4, 5, 7, 8 and 9, which are a perspective exploded view, a side view, a perspective external view of a preferred embodiment, and a partial enlarged view of a portion a of fig. 8, it can be clearly seen that the dual-coupling multi-band wideband monopole antenna of the present invention is that the grounding wire 2 and the signal wire 3 are assembled through the positioning space 122 and the fixing space 123 on the two sides of the frame 12 on the side of the base plate 11 of the insulating bracket 1, the signal feed point 311 on the side of the signal feed portion 31 of the signal wire 3 can be electrically connected with the external preset signal transmission line 6, and the monopole antenna is assembled inside the housing of the communication electronic product (the shark fin antenna housing shown in the drawing) and is connected with the metal housing of the communication electronic product in a telecommunication manner, so that the grounding wire 2 has a good grounding function, thereby achieving the effect of transmitting wireless signals.
The broadband monopole antenna with double frequencies and multiple frequency bands of the invention is electrically connected with the preset signal transmission line 6 through the signal feed point 311 of the signal line 3, and adopts a direct feed method, so that the reference ground plane 21 is positioned below the insulating bracket 1 and the signal line 3, and the signal line 3 is covered by the side vertical plate 22 extending from one side of the reference ground plane 21 and the coupling side 23 bending and extending from the top, thus achieving the double frequency resonance effect, leading the overall type of the antenna to be similar to a monopole antenna mode of grounding double coupling feed, and further achieving the purposes of increasing the working bandwidth of the antenna and being applicable to multi-frequency band operation.
Therefore, the above-mentioned preferred embodiments of the present invention are not limited to the scope of the present invention, the frame 12 is protruded on one side of the substrate 11 of the insulating support 1, and the positioning space 122 and the fixing space 123 are respectively provided on two sides of the frame 12, so that the grounding wire 2 and the signal wire 3 can be assembled respectively, the grounding wire 2 is provided with the side stand 22 from one side of the reference ground plane 21, the coupling side 23 is continuously bent and obliquely extended from the top of the side stand 22, the coupling side 23 spans to the other side of the fixing space 123 and covers over the coupling portion 32 of the signal wire 3, adjacent separation is formed, the signal feeding portion 31 at the bottom of the signal wire 3 is located on the fixing support 3 at the bottom of the fixing space 123, and the reference ground plane 21 is separated at a proper interval, so as to achieve the purpose of obtaining a larger working bandwidth by dual-frequency resonance, and the signal feeding point 311 at one side of the signal feeding portion 31 is electrically connected with the external preset signal transmission line 6, and the direct connection method is adopted, so that the dual-band antenna can be modified in the same manner as the present invention, and the equivalent structure of the dual-band antenna can be modified, and the equivalent structure of the present invention can be improved, and the equivalent structure of the antenna can be improved.
Therefore, the present invention is designed mainly for a broadband monopole antenna with dual-coupling and multi-frequency bands and a signal coupling method thereof, wherein the two side positioning spaces and the fixed space of an insulating bracket are utilized to respectively assemble a grounding wire and a signal wire, so that the inclined coupling side of the grounding wire, which is continuously bent and extended from one side of a reference grounding surface, spans to the other side and forms adjacent separation with the coupling part of the signal wire, and the signal feed-in part at the bottom of the signal wire forms proper separation with the reference grounding surface, namely, the mode of the grounding surface masks the signal wire, so that dual-frequency resonance can be achieved and a larger working bandwidth is mainly protected, the signal wire is electrically connected with an external preset signal transmission line through the signal feed-in point at one side of the bottom signal feed-in part, and a direct feed-in method is adopted, so that the overall antenna is similar to the grounded dual-coupling monopole antenna, the advantage of the working frequency band can be increased only when the antenna is applied, and the functions of larger low-frequency and high-frequency working bandwidth can be obtained by assisting in adjusting impedance matching.
Claims (10)
1. A dual-coupled multi-band broadband monopole antenna, characterized by: including insulating support, earth connection and signal line, wherein:
the insulating bracket is provided with a positioning space and a fixing space on two opposite sides respectively;
the grounding wire is assembled at a positioning space on one side of the insulating bracket, the top of the grounding wire is provided with a coupling side which extends to the top of the fixed space on the other side in a bent shape, and the bottom of the grounding wire is provided with a reference grounding surface positioned at the bottom of the insulating bracket; and
The signal wire is assembled in a fixed space on the insulating support opposite to the other side of the grounding wire, the top is provided with a coupling part which extends to the coupling side of the grounding wire to form adjacent separation preset intervals, and the bottom is provided with a signal feed-in part which extends in a turning way.
2. The dual-coupled multi-band wideband monopole antenna as recited in claim 1 wherein: the insulating support comprises a substrate and a frame seat which protrudes outwards from one side surface of the substrate, and is used for respectively assembling a grounding wire and a signal wire in a positioning space and a fixing space of two opposite outer side edges of the frame seat.
3. The dual-coupled multi-band wideband monopole antenna as recited in claim 2 wherein: the substrate is provided with a plurality of frame seats with criss-cross partition boards facing outwards and outwards, a vertical positioning space is arranged on the outer side of the frame seat, a plurality of transverse partition boards for abutting and positioning the grounding wire are arranged on the side edge of the positioning space, a positioning abutting body for abutting against the top surface of the grounding wire is arranged on the top of the positioning space, an inclined fixing space is arranged on the other side of the frame seat relative to the positioning space, a limiting abutting body for abutting against the coupling side of the grounding wire is arranged on the top of the fixing space, a fixing abutting body for abutting against the coupling part of the signal wire is arranged on the top of the fixing space, and a fixing abutting seat for supporting the signal feed-in part of the signal wire is arranged on the bottom of the fixing space.
4. The dual-coupled multi-band wideband monopole antenna as recited in claim 1 wherein: the grounding wire is in a 7 shape, the top of the grounding wire is continuously bent and extended to form a coupling side in an inclined shape, the bottom of the grounding wire is connected with a reference grounding surface, the signal wire is provided with a coupling part with the same inclination angle as the coupling side, and the coupling side and the coupling part are provided with adjacent separation preset intervals which are not contacted by a fixed supporting body, and the preset intervals of the adjacent separation are the thickness of the fixed supporting body; the reference ground plane at the bottom of the ground wire can be electrically connected with the metal shell, the ground side of the circuit board or the metal body of the automobile.
5. The dual-coupled multi-band wideband monopole antenna as recited in claim 1 wherein: the signal line is provided with a coupling part extending upwards from one side of the signal feed-in part in an inclined way, and a signal feed-in point for electrically connecting a preset signal transmission line is arranged on the side edge of the signal feed-in part of the adjacent coupling part in an outward protruding way.
6. A signal coupling method of a double-coupling multi-band broadband monopole antenna is characterized by comprising the following steps: the signal coupling method comprises the steps of:
(A) The signal wire on one side of the insulating support is used as a high-frequency radiation path, and the wavelength of the high-frequency signal is close to one quarter of the high-frequency working frequency band;
(B) The other side of the insulating bracket is connected with a ground wire by a low-frequency radiation path, and the wavelength of the low-frequency signal is close to one fourth of the low-frequency working frequency band;
(C) The top of the grounding wire is provided with a coupling side, so that the coupling side extends to the outside of a coupling part arranged at the top of the signal wire at the other side to form a shade, and a preset interval is formed between the coupling side and the coupling part;
(D) The reference ground plane arranged at the bottom of the ground wire is positioned below the bottom of the insulating bracket and the signal feed-in part arranged on the signal wire by a direct feed-in method;
(E) The ground wire and the signal wire form double-frequency resonance to form a grounded double-coupling feed monopole antenna, and the monopole antenna is used for increasing the working bandwidth of the antenna.
7. The method for coupling signals of a dual-coupled multi-band wideband monopole antenna according to claim 6, wherein: the high frequency signal wavelength and the low frequency signal wavelength are calculated with respect to the center frequency of the operating frequency band.
8. The method for coupling signals of a dual-coupled multi-band wideband monopole antenna according to claim 7, wherein: the operating Band is an LTE Band, and the low frequency operating Band LTE Band40 is: 2300MHz-2400MHz; as for the high frequency operation Band LTE Band38, it is: 2570MHz-2620MHz.
9. The method for coupling signals of a dual-coupled multi-band wideband monopole antenna according to claim 6, wherein: the signal line in the step (C) extends vertically upwards from the reference ground plane, and the coupling part of the signal line is shielded by the coupling side, and the line width of the ground line and the line width of the signal line are adjusted to obtain larger low-frequency working bandwidth.
10. The method for coupling signals of a dual-coupled multi-band wideband monopole antenna according to claim 6, wherein: the coupling part of the signal wire and the coupling side of the grounding wire form a first coupling section, the signal feed-in part of the signal wire and the reference grounding surface form a second coupling section, the signal feed-in part of the signal wire is provided with a signal feed-in point electrically connected with an external preset signal transmission wire, and the preset signal transmission wire is utilized to form a double-coupling structure for the signal wire and the grounding wire by a direct feed-in method so as to increase the working frequency band of the antenna and assist in adjusting impedance matching so as to obtain larger high-frequency working frequency bandwidth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390253.3A CN107464999B (en) | 2016-06-02 | 2016-06-02 | Dual-coupling multi-band broadband monopole antenna and signal coupling method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610390253.3A CN107464999B (en) | 2016-06-02 | 2016-06-02 | Dual-coupling multi-band broadband monopole antenna and signal coupling method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107464999A CN107464999A (en) | 2017-12-12 |
| CN107464999B true CN107464999B (en) | 2023-06-09 |
Family
ID=60545582
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610390253.3A Active CN107464999B (en) | 2016-06-02 | 2016-06-02 | Dual-coupling multi-band broadband monopole antenna and signal coupling method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107464999B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117791087B (en) * | 2024-02-26 | 2024-06-04 | 泰州苏中天线集团有限公司 | GNSS antenna and manufacturing method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM327554U (en) * | 2007-08-07 | 2008-02-21 | Joinsoon Electronic Mfg Co Ltd | Dual-band antenna |
| CN203760643U (en) * | 2014-01-20 | 2014-08-06 | 深圳市维力谷无线技术有限公司 | Mobile phone built-in parasitic antenna and mobile phone device provided with built-in parasitic antenna |
| CN204216232U (en) * | 2013-09-12 | 2015-03-18 | 莱尔德技术股份有限公司 | Be installed to the multiband multiple-input and multiple-output MIMO car antenna assembly of Automobile body wall |
| CN104868229A (en) * | 2014-02-20 | 2015-08-26 | 现代自动车株式会社 | Dual Band Pcb Antenna For Vehicle |
| CN205811056U (en) * | 2016-06-02 | 2016-12-14 | 江苏骅盛车用电子股份有限公司 | The broadband monopole antenna of double coupled multiple frequency sections |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2495808A1 (en) * | 2011-03-03 | 2012-09-05 | Nxp B.V. | Multiband antenna |
| KR101431724B1 (en) * | 2011-06-23 | 2014-08-21 | 위너콤 주식회사 | Broadcasting Antenna of Vehicle for Improving Rediation Efficiency and Preventing Interference of Signal, and Shark Fin Type Antenna Apparatus for Vehicle Therewith |
-
2016
- 2016-06-02 CN CN201610390253.3A patent/CN107464999B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWM327554U (en) * | 2007-08-07 | 2008-02-21 | Joinsoon Electronic Mfg Co Ltd | Dual-band antenna |
| CN204216232U (en) * | 2013-09-12 | 2015-03-18 | 莱尔德技术股份有限公司 | Be installed to the multiband multiple-input and multiple-output MIMO car antenna assembly of Automobile body wall |
| CN203760643U (en) * | 2014-01-20 | 2014-08-06 | 深圳市维力谷无线技术有限公司 | Mobile phone built-in parasitic antenna and mobile phone device provided with built-in parasitic antenna |
| CN104868229A (en) * | 2014-02-20 | 2015-08-26 | 现代自动车株式会社 | Dual Band Pcb Antenna For Vehicle |
| CN205811056U (en) * | 2016-06-02 | 2016-12-14 | 江苏骅盛车用电子股份有限公司 | The broadband monopole antenna of double coupled multiple frequency sections |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107464999A (en) | 2017-12-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US7501983B2 (en) | Planar antenna structure and radio device | |
| KR101887934B1 (en) | Built-in antenna for communication electronic device | |
| CN101106211B (en) | Dual loop multi-frequency antenna | |
| CN101345341B (en) | Multiband antenna | |
| US8711039B2 (en) | Antenna module and wireless communication apparatus | |
| US8593354B2 (en) | Multi-band antenna | |
| US20090140942A1 (en) | Internal antenna and methods | |
| US10396433B2 (en) | Mobile terminal | |
| US10965018B2 (en) | Antenna device | |
| CN210956994U (en) | Antenna assembly and electronic equipment | |
| US20100060528A1 (en) | Dual-frequency antenna | |
| TWI532257B (en) | Multi-band antenna | |
| CN105591198B (en) | Antenna structure and electronic device with same | |
| US9203142B2 (en) | Mobile communication antenna device and mobile communication terminal device | |
| CN210897620U (en) | Double-parasitic antenna assembly and electronic equipment | |
| JP4649634B2 (en) | Multiband monopole antenna | |
| CN109309279B (en) | Antenna structure | |
| US20170170555A1 (en) | Decoupled Antennas For Wireless Communication | |
| US7791545B2 (en) | Multiband antenna | |
| CN104282979A (en) | Electronic device | |
| WO2015120780A1 (en) | Antenna and mobile terminal | |
| US7920095B2 (en) | Three-dimensional multi-frequency antenna | |
| CN107464999B (en) | Dual-coupling multi-band broadband monopole antenna and signal coupling method thereof | |
| US10418696B2 (en) | Antenna device | |
| US20100265157A1 (en) | Multi-band antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |