CN106961006B - Dual-band dual-mode miniaturized handheld antenna - Google Patents
Dual-band dual-mode miniaturized handheld antenna Download PDFInfo
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- CN106961006B CN106961006B CN201710211915.0A CN201710211915A CN106961006B CN 106961006 B CN106961006 B CN 106961006B CN 201710211915 A CN201710211915 A CN 201710211915A CN 106961006 B CN106961006 B CN 106961006B
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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
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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
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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
- H01Q1/50—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
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/52—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure
- H01Q1/521—Means for reducing coupling between antennas; Means for reducing coupling between an antenna and another structure reducing the coupling between adjacent antennas
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q15/00—Devices for reflection, refraction, diffraction or polarisation of waves radiated from an antenna, e.g. quasi-optical devices
- H01Q15/24—Polarising devices; Polarisation filters
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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
- H01Q5/20—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements characterised by the operating wavebands
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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
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
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- 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
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Abstract
The invention provides a dual-band dual-mode miniaturized handheld antenna, which is used for solving the technical problem of narrow application range of the existing miniaturized handheld antenna caused by single working frequency band and mode. The invention can realize the double-band and double-mode working characteristic and can be used for mobile satellite communication and ground mobile communication.
Description
Technical Field
The invention belongs to the technical field of antennas, relates to a miniaturized handheld antenna, and particularly relates to a dual-band dual-mode miniaturized handheld antenna which can be used for a handheld or flat-plate communication terminal.
Background
An antenna is a component in a radio device for transmitting or receiving electromagnetic waves, and its basic function is to convert high-frequency current energy sent from a transmitter into radio waves and transmit the radio waves to a space, and at a receiving end, to convert radio wave energy transmitted from the space into high-frequency current energy transmitted to a receiver, thereby realizing transmission of electromagnetic signals at any two points.
In mobile satellite communication earth stations and satellite navigation devices, antennas are required to have wide beam, circular polarization characteristics in order to keep the satellites in motion within the coverage of the antenna beam. Meanwhile, the antenna must have a broadband operation characteristic so as to share one antenna for reception and transmission. Four-arm helical and multi-arm helical antennas can achieve wide beams and circular polarization and are therefore widely used for mobile satellite communications. But because it is a resonant antenna, the bandwidth is narrow and bulky.
In order to realize broadband and miniaturization characteristics of antennas, technical workers have made many studies. For example, chinese patent publication No. CN204760536U, entitled "miniaturized mobile satellite communication handheld terminal antenna", discloses a miniaturized handheld antenna comprising a hollow cylindrical structure, four sets of spiral arms and a circularly polarized feeding member, each set of spiral arms being laser engraved on an outer surface of the hollow cylindrical structure, and a long spiral arm extending to a top end of the hollow cylindrical structure. Although it has solved the problem that current mobile satellite communication handset antenna structure size is big, work bandwidth is narrow better. However, for the existing miniaturized handset antenna, it is often hoped to generate circular polarization for mobile satellite communication and linear polarization for ground mobile communication, and two antennas can be adopted, but this will cause the complexity of the handheld device to be increased and the portable device to be inconvenient to carry. Therefore, the operation frequency band and the mode are single, and the application range is narrow, so that the antenna becomes a main disadvantage of the existing small-sized handheld machine antenna.
Disclosure of Invention
The invention aims to overcome the defects of the prior art, and provides a dual-band dual-mode miniaturized handheld antenna which is used for solving the technical problem of narrow application range of the existing miniaturized handheld antenna caused by single working frequency band and mode.
In order to achieve the above purpose, the invention adopts the technical scheme that:
the dual-band dual-mode miniaturized handheld antenna comprises a first frequency band antenna unit, a second frequency band antenna unit and a feed unit, wherein the first frequency band antenna unit comprises a first radiator 2 and a multi-port network 3 arranged at the bottom of the first radiator 2, the first radiator 2 comprises a cylindrical medium substrate and a plurality of groups of spiral patches printed on the outer surface of the cylindrical medium substrate, each group of spiral patches consists of a plurality of parallel patches connected at the bottom, a feed point is formed at the joint, and each feed point is connected with an output port corresponding to the multi-port network 3; the second frequency band antenna unit adopts a monopole antenna form and comprises a first radiator 2 and a second radiator 4, the second radiator 4 adopts a cylindrical structure with a plurality of tips arranged at the upper edge, and each tip is connected with a feed point of a group of spiral patches; the input port of the multi-port network 3 is connected with a first coaxial feeder 5, an outer conductor of the first coaxial feeder 5 is connected with the bottom end of the second radiator 4, and a choke coil is arranged at the lower end of the first coaxial feeder 5 and used for increasing the isolation between the first frequency band antenna unit and the second frequency band antenna unit; the feed unit 8 adopts a double-channel radio frequency connector, one output end of the double-channel radio frequency connector is connected with the first coaxial feeder 5, the other output end of the double-channel radio frequency connector is connected with the second coaxial feeder 7, and an upper inner conductor of the second coaxial feeder 7 is connected with an upper outer conductor of the choke coil; the outer side of the choke coil is provided with a third coaxial line 6, the inner conductor at the lower end of the third coaxial line 6 is connected with the outer conductor at the lower end of the choke coil, and the outer conductor at the upper end of the choke coil is connected with the outer conductor at the upper end of the choke coil, so that impedance matching of the second frequency band antenna unit is realized; the first frequency band antenna unit and the second frequency band antenna unit are closed through the first antenna housing 1.
The dual-band dual-mode miniaturized handheld antenna comprises a first frequency band antenna unit, a second frequency band antenna unit and a feed unit, wherein the first frequency band antenna unit comprises a first radiator 2 and a multi-port network 3 arranged at the bottom of the first radiator 2, the first radiator 2 comprises a cylindrical medium substrate and a plurality of groups of spiral patches printed on the outer surface of the cylindrical medium substrate, each group of spiral patches consists of a plurality of parallel patches connected at the bottom, a feed point is formed at the joint, and each feed point is connected with an output port corresponding to the multi-port network 3; the second frequency band antenna unit adopts a dipole antenna form and comprises a first radiator 2, a second radiator 4 and a third radiator 10, wherein the second radiator 4 adopts a cylindrical structure with a plurality of tips arranged at the upper edge, each tip is connected with a feed point of a group of spiral patches, and the third radiator 10 comprises a gooseneck with two ends connected with metal parts; the input port of the multi-port network 3 is connected with a first coaxial feeder 5, an outer conductor of the first coaxial feeder 5 is connected with the bottom end of the second radiator 4, a choke coil is arranged at the lower end of the first coaxial feeder 5 and used for increasing the isolation between the first frequency band antenna unit and the second frequency band antenna unit, and the outer conductor at the lower end of the choke coil is connected with an upper metal part of the third radiator 10; the feeding unit 8 adopts a double-channel radio frequency connector, one output end of the feeding unit is connected with a fourth coaxial feeder 9, the other output end of the feeding unit is connected with a second coaxial feeder 7, the upper end of the fourth coaxial feeder 9 is connected with the first coaxial line 5, the lower end of the fourth coaxial feeder is wound into a double-wire choke coil together with the lower end of the second coaxial line 7, an upper inner conductor of the second coaxial line 7 is connected with an upper outer conductor of the choke coil arranged at the lower end of the first coaxial line 5, and the upper outer conductor is connected with an upper metal part of the third radiator 10; a third coaxial line 6 is arranged outside the choke coil arranged at the lower end of the first coaxial line 5, the lower end inner conductor of the third coaxial line 6 is connected with the lower end outer conductor of the choke coil, and the upper end outer conductor is connected with the upper end outer conductor of the choke coil; the first frequency band antenna element and the second radiator 4 are enclosed by a first radome 1 and the double-wire choke is enclosed by a second radome 11.
In the dual-band dual-mode miniaturized handheld antenna, the number of the plurality of groups of spiral patches printed on the outer surface of the cylindrical dielectric substrate of the first radiator 2 is four, and the winding direction of the four groups of spiral patches adopts left or right rotation.
In the dual-band dual-mode miniaturized handset antenna, the number of input ports of the multi-port network 3 is one, and the number of output ports is four.
In the dual-band dual-mode miniaturized handheld antenna, the cylindrical dielectric substrate is made of a thin flexible material.
In the dual-band dual-mode miniaturized handheld antenna, the second radiator 4 is made of benign conductive material, and the number of tips arranged along the upper edge of the second radiator is four.
In the above-mentioned dual-band dual-mode miniaturized handheld antenna, the first radome 1 is made of an insulating material.
In the above-mentioned dual-band dual-mode miniaturized handheld antenna, the second radome 11 is made of an insulating material.
Compared with the prior art, the invention has the following advantages:
1. the radiator of the first frequency band antenna unit is used as a part of the second frequency band antenna unit, so that the size of the second frequency band antenna unit is reduced, and the miniaturization of the handheld antenna is realized.
2. The first frequency band antenna unit comprises the first radiator and the multiport network arranged at the bottom of the first radiator, so that circular polarization can be generated, and the second frequency band antenna unit adopts a monopole antenna form or a dipole antenna form, so that linear polarization can be generated, and the dual-band dual-mode working characteristic is realized, so that the dual-band dual-mode antenna unit can be used for mobile satellite communication and ground mobile communication, and compared with the existing small-sized hand-held set antenna, the application range is enlarged.
3. The choke coil is arranged at the lower end of the first coaxial line, so that the isolation between the first frequency band antenna unit and the second frequency band antenna unit is effectively increased, and the impedance matching of the second frequency band antenna unit is realized by connecting the choke coil with the third coaxial line.
Drawings
FIG. 1 is a schematic overall structure of a first embodiment of the present invention;
FIG. 2 is a schematic diagram showing the structural relationship between a second radiator and a first coaxial line according to the present invention;
FIG. 3 is a schematic overall structure of a second embodiment of the present invention;
fig. 4 is a graph showing experimental results of standing wave ratio of an antenna according to a first embodiment of the present invention;
FIG. 5 is a diagram showing the measured direction of each frequency point in the 1980Mhz-2200Mhz frequency band according to the first embodiment of the present invention;
FIG. 6 is a diagram showing the measured direction of each frequency point in the 400Mhz-678Mhz band according to the first embodiment of the present invention.
Detailed Description
The invention is further described with reference to the accompanying drawings and specific examples:
in embodiment 1, the second band antenna unit of the present embodiment adopts a monopole antenna form.
Referring to fig. 1, a dual-band dual-mode miniaturized handset antenna includes a first frequency band antenna unit, a second frequency band antenna unit, and a feed unit, the first frequency band antenna unit includes a first radiator 2 and a multiport network 3 disposed at the bottom of the first radiator 2, wherein the first radiator 2 includes a cylindrical dielectric substrate and four sets of spiral patches printed on the outer surface of the cylindrical dielectric substrate, the cylindrical dielectric substrate is formed by bending an FPC of 0.14mm, the height is 82mm, the diameter is 13mm, the four sets of spiral patches are metal patches, each set of spiral patches includes a long spiral patch and a short spiral patch, the lift angle is 60 °, the lengths are 94mm and 83mm, the long spiral patches and the short spiral patches are sequentially spaced apart, the multi-port network 3 is integrated with a circular polarization forming network and an impedance matching circuit, and is provided with an input port and four output ports, the output ports are mutually different by 90 degrees, the input ports are respectively and correspondingly connected with the feed points of each group of spiral patches, the input ports are in feed connection with a first coaxial feeder 5, so that circular polarization is generated by the first frequency band antenna unit, the first coaxial feeder 5 adopts a half steel wire with the diameter of 3mm, the upper end is a straight line segment, the lower end is provided with a choke coil with the number of turns of four, and the choke coil can increase the isolation between the first frequency band antenna unit and the second frequency band antenna unit; the second frequency band antenna unit comprises a first radiator 2 and a second radiator 4, the second radiator 4 adopts a four-claw structure, four claw tips at the upper end are respectively connected with feed points of four groups of spiral patches, and the lower end is connected with an outer conductor of a first coaxial line 5, so that the first frequency band antenna unit forms a monopole antenna form to generate linear polarization; the feed unit 8 adopts a double-channel radio frequency joint, the height is 17mm, one output end of the feed unit is connected with the first coaxial line 5, the other output end of the feed unit is connected with the second coaxial line 7, the second coaxial line 7 adopts a semi-flexible coaxial line, an upper end inner conductor of the second coaxial line is connected with an upper end outer conductor of a choke coil, a third coaxial line 6 is arranged on the outer side of the choke coil, the third coaxial line 6 is used as an open circuit branch, the upper end outer conductor of the second coaxial line is connected with an upper end outer conductor of the choke coil, and a lower end inner conductor of the second coaxial line is connected with a lower end outer conductor of the choke coil, so that the impedance matching of the second frequency band antenna unit is realized; the first antenna housing 1 is made of insulating plastic material, has a height of 157mm, and is used for sealing the first frequency band antenna unit and the second frequency band antenna unit.
The antenna of this embodiment can operate in both the S band (1980 Mhz-2200 Mhz) and the U band (400 Mhz-678 Mhz).
Referring to fig. 2, a dual-band dual-mode miniaturized broadband handset antenna, the second radiator 4 is made of copper sheet with thickness of 0.02mm, height of 36mm, and bottom end of rectangle with a central hole so that the first coaxial line 5 passes through.
In embodiment 2, the second band antenna unit of the present embodiment is in the form of a dipole antenna.
Referring to fig. 3, the basic structure of the present embodiment is the same as that of embodiment 1, and the main difference is that the second frequency band antenna unit structure and the connection mode between the components are the same, the second frequency band antenna unit of the present embodiment includes a first radiator 2, a second radiator 4 and a third radiator 10, the third radiator 10 includes a gooseneck with two ends connected with metal copper components, which is a benign conductive material, the total length is 120mm, the pitch angle of the radiator can be changed by bending the gooseneck, thereby realizing omnibearing communication, the upper end metal copper component of the third radiator 10 is fixed as a connecting piece with a first antenna housing 1, the lower end metal copper component is fixed as a connecting piece with a second antenna housing 11 made of insulating plastic material, a second coaxial line 7 is connected with an upper end outer conductor of a choke coil provided at the lower end of the first coaxial line 5, the upper end outer conductor is connected with the upper end metal copper component of the third radiator 10, thereby forming a dipole antenna form, the first radiator 2 and the second radiator 4 are connected as a sub-arm, the third radiator 10 forms a second coaxial line antenna unit, the other end is a second coaxial line 7 is connected with a second coaxial line antenna coil by a second coaxial line, and a coaxial line 7 is made into a balanced coil by a second coaxial line, and a coaxial line 7 is connected with the lower end of the second coaxial line; the feeding unit 8 adopts a dual-channel radio frequency connector, and the output ends of the feeding unit are respectively connected with the second coaxial line 7 and the fourth coaxial line 9.
The technical effects of the present invention will be further described with reference to experimental data.
Referring to fig. 4, fig. 4 (a) and fig. 4 (b) are graphs of experimental results of standing wave ratios of antennas in a U frequency band and an S frequency band respectively according to a first embodiment of the present invention, and an abscissa is frequency and an ordinate is standing wave ratio, and it can be seen from fig. 4 (a) that the standing wave ratios of the embodiments of the present invention in the U frequency band range are all below 2.5, so as to meet the requirement of a handheld ground mobile communication system on the standing wave ratio of the antennas. From fig. 4 (b), it can be seen that the standing-wave ratio of the embodiment of the present invention is below 2 in the S-band range, so as to meet the requirement of the handheld mobile satellite communication system on the standing-wave ratio of the antenna.
Referring to fig. 5, fig. 5 (a) and fig. 5 (b) are radiation patterns of H plane and E plane actually measured at each frequency point of U frequency band in the first embodiment of the present invention, and it can be seen from fig. 5 (a) and fig. 5 (b) that the embodiment of the present invention has better omnidirectional radiation characteristics in the U frequency band, so as to meet the requirement of the handheld ground mobile communication system on the antenna radiation patterns.
Referring to fig. 6, fig. 6 (a) and fig. 6 (b) are graphs of xoz and yoz radiation patterns actually measured at each frequency point of the S-band in the first embodiment of the present invention, and as can be seen from fig. 6 (a) and fig. 6 (b), the present invention has better wide beam and directional radiation characteristics in the S-band, and can meet the requirements of the handheld mobile satellite communication system on the antenna radiation patterns.
The foregoing description is only a specific example of the invention, and it will be apparent to those skilled in the art that various modifications and changes in form and detail may be made without departing from the principles and construction of the invention, but these modifications and changes based on the invention are still within the scope of the claims of the invention.
Claims (8)
1. The dual-band dual-mode miniaturized handheld antenna is characterized by comprising a first frequency band antenna unit, a second frequency band antenna unit and a feed unit, wherein the first frequency band antenna unit comprises a first radiator (2) and a multi-port network (3) arranged at the bottom of the first radiator (2), the first radiator (2) comprises a cylindrical dielectric substrate and a plurality of groups of spiral patches printed on the outer surface of the cylindrical dielectric substrate, each group of spiral patches consists of a plurality of parallel patches connected at the bottom, a feed point is formed at the joint, and each feed point is connected with an output port corresponding to the multi-port network (3); the second frequency band antenna unit adopts a monopole antenna form and comprises a first radiator (2) and a second radiator (4), the second radiator (4) adopts a cylindrical structure with a plurality of tips arranged at the upper edge, and each tip is connected with a feed point of a group of spiral patches; the input port of the multi-port network (3) is connected with a first coaxial feeder (5), an outer conductor of the first coaxial feeder (5) is connected with the bottom end of the second radiator (4), and a choke coil is arranged at the lower end of the first coaxial feeder (5) and used for increasing the isolation between the first frequency band antenna unit and the second frequency band antenna unit; the feeding unit (8) adopts a double-channel radio frequency connector, one output end of the feeding unit is connected with the first coaxial feeder (5), the other output end of the feeding unit is connected with a second coaxial feeder (7), and an upper inner conductor of the second coaxial feeder (7) is connected with an upper outer conductor of the choke coil; a third coaxial feeder line (6) is arranged outside the choke coil, the inner conductor at the lower end of the third coaxial feeder line (6) is connected with the outer conductor at the lower end of the choke coil, and the outer conductor at the upper end of the choke coil is connected with the outer conductor at the upper end of the choke coil and is used for realizing impedance matching of the antenna unit at the second frequency band; the first frequency band antenna unit and the second frequency band antenna unit are closed through a first antenna housing (1).
2. The dual-band dual-mode miniaturized handheld antenna is characterized by comprising a first frequency band antenna unit, a second frequency band antenna unit and a feed unit, wherein the first frequency band antenna unit comprises a first radiator (2) and a multi-port network (3) arranged at the bottom of the first radiator (2), the first radiator (2) comprises a cylindrical dielectric substrate and a plurality of groups of spiral patches printed on the outer surface of the cylindrical dielectric substrate, each group of spiral patches consists of a plurality of parallel patches connected at the bottom, a feed point is formed at the joint, and each feed point is connected with an output port corresponding to the multi-port network (3); the second frequency band antenna unit adopts a dipole antenna form and comprises a first radiator (2), a second radiator (4) and a third radiator (10), wherein the second radiator (4) adopts a cylindrical structure with a plurality of tips arranged at the upper edge, each tip is connected with a feed point of a group of spiral patches, and the third radiator (10) comprises a gooseneck with two ends connected with metal parts; the input port of the multi-port network (3) is connected with a first coaxial feeder (5), an outer conductor of the first coaxial feeder (5) is connected with the bottom end of the second radiator (4), a choke coil is arranged at the lower end of the first coaxial feeder (5) and used for increasing the isolation between the first frequency band antenna unit and the second frequency band antenna unit, and the outer conductor at the lower end of the choke coil is connected with an upper metal part of the third radiator (10); the feeding unit (8) adopts a double-channel radio frequency connector, one output end of the feeding unit is connected with a fourth coaxial feeder (9), the other output end of the feeding unit is connected with a second coaxial feeder (7), the upper end of the fourth coaxial feeder (9) is connected with the first coaxial feeder (5), the lower end of the fourth coaxial feeder is wound into a double-wire choke coil together with the lower end of the second coaxial feeder (7), the upper inner conductor of the second coaxial feeder (7) is connected with the upper outer conductor of the choke coil arranged at the lower end of the first coaxial feeder (5), and the upper outer conductor is connected with the upper metal part of the third radiator (10); a third coaxial feeder (6) is arranged outside the choke coil arranged at the lower end of the first coaxial feeder (5), the lower end inner conductor of the third coaxial feeder (6) is connected with the lower end outer conductor of the choke coil, and the upper end outer conductor is connected with the upper end outer conductor of the choke coil; the first frequency band antenna unit and the second radiator (4) are closed by a first antenna housing (1), and the double-coil choke is closed by a second antenna housing (11).
3. A dual-band dual-mode miniaturized handset antenna according to claim 1 or 2, characterized in that the number of the plurality of sets of spiral patches printed on the outer surface of the cylindrical dielectric substrate is four, and the winding direction of the four sets of spiral patches adopts left or right rotation.
4. A dual-band, dual-mode, miniaturized handset antenna according to claim 1 or 2, characterized in that said multi-port network (3) has one number of input ports and four number of output ports.
5. A dual band dual mode miniaturized handset antenna according to claim 1 or 2 wherein the cylindrical dielectric substrate is of flexible material.
6. A dual-band dual-mode miniaturized handset antenna according to claim 1 or 2, characterized in that said second radiator (4) is made of benign conductive material, the number of tips provided along its upper edge being four.
7. A dual band dual mode miniaturized handset antenna according to claim 1 or 2, characterized in that said first radome (1) is made of an insulating material.
8. A dual band dual mode miniaturized handset antenna according to claim 2, characterized in that said second radome (11) is made of an insulating material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710211915.0A CN106961006B (en) | 2017-04-01 | 2017-04-01 | Dual-band dual-mode miniaturized handheld antenna |
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| CN201710211915.0A CN106961006B (en) | 2017-04-01 | 2017-04-01 | Dual-band dual-mode miniaturized handheld antenna |
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| CN106961006A CN106961006A (en) | 2017-07-18 |
| CN106961006B true CN106961006B (en) | 2023-05-05 |
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| CN108281785A (en) * | 2018-01-23 | 2018-07-13 | 北京微纳星空科技有限公司 | A kind of mobile satellite communication handheld terminal antenna |
| CN108461924B (en) * | 2018-03-15 | 2024-03-08 | 深圳市维力谷无线技术股份有限公司 | Satellite double-frequency antenna |
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| KR101128872B1 (en) * | 2010-11-29 | 2012-03-26 | 고형석 | Circular-polarized antenna |
| CN205488523U (en) * | 2016-03-28 | 2016-08-17 | 西安星网天线技术有限公司 | Broadband qxcomm technology handheld terminal antenna of can buckling |
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| US6720935B2 (en) * | 2002-07-12 | 2004-04-13 | The Mitre Corporation | Single and dual-band patch/helix antenna arrays |
| CN102842763B (en) * | 2012-08-29 | 2014-07-16 | 东南大学 | Anti-multipath multi-feed-source high-isolation wide-beam high-stability phase center antenna |
| US9391375B1 (en) * | 2013-09-27 | 2016-07-12 | The United States Of America As Represented By The Secretary Of The Navy | Wideband planar reconfigurable polarization antenna array |
| CN204760536U (en) * | 2015-07-08 | 2015-11-11 | 西安星网天线技术有限公司 | Miniaturized handheld terminal of mobile satellite communication antenna |
| CN106129630B (en) * | 2016-07-15 | 2019-08-20 | 山东航天电子技术研究所 | A kind of transceiver double-circle polarization helical antenna |
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| KR101128872B1 (en) * | 2010-11-29 | 2012-03-26 | 고형석 | Circular-polarized antenna |
| CN205488523U (en) * | 2016-03-28 | 2016-08-17 | 西安星网天线技术有限公司 | Broadband qxcomm technology handheld terminal antenna of can buckling |
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