CN105789901A - Multi-band antenna free of lumped parameter element for high-screen ratio mobile terminal - Google Patents
Multi-band antenna free of lumped parameter element for high-screen ratio mobile terminal Download PDFInfo
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- CN105789901A CN105789901A CN201610127824.4A CN201610127824A CN105789901A CN 105789901 A CN105789901 A CN 105789901A CN 201610127824 A CN201610127824 A CN 201610127824A CN 105789901 A CN105789901 A CN 105789901A
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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
- H01Q5/28—Arrangements for establishing polarisation or beam width over two or more different wavebands
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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
- H01Q1/36—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
- H01Q1/48—Earthing means; Earth screens; Counterpoises
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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
- H01Q5/10—Resonant antennas
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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
- H01Q5/378—Combination of fed elements with parasitic elements
- H01Q5/385—Two or more parasitic elements
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Abstract
The invention provides a multi-band antenna free of a lumped parameter element for a high-screen ratio mobile terminal, and belongs to the technical field of broadband antennas for the mobile terminal. The multi-band antenna is characterized in that a monopole antenna of combining a drive branch and double-branch coupling ground branches is adopted; the multi-band antenna comprises an antenna main body, a dielectric plate, a microstrip feeder and a metal floor, wherein the antenna main body comprises the T-shaped drive branch and double-branch coupling parasitic ground branches; two 1/4 wavelength resonant modes are generated at a low band; full coverage of low-band LTE700, GSM850 and GSM900 and high-band DCS, PCS, UMTS, LTE2300 and LET2500 is achieved by combining a 3/4 wavelength mode of the drive branch and the 3/4 wavelength modes of long coupling parasitic ground branches and introducing a 1/4 wavelength resonant mode of the short coupling parasitic ground branch and tuning stubs; and the loss caused by the lumped parameter element is also omitted.
Description
Technical field
The invention belongs to wideband antenna technical field used for mobile terminal, relate to a kind of multiband WWAN/LTE antenna not using lumped-parameter element and being applicable to height screen accounting mobile terminal device
Background technology
High speed development along with wireless communication technology, second generation mobile communication system (thesecondgeneration, 2G), 3-G (Generation Three mobile communication system) (thethirdgeneration, 3G) and forth generation mobile communication system (thefourthgeneration, 4G) technology ripe and worldwide applied.nullCommunication need due to modern intelligent mobile terminal，The mobile terminal antenna in broadband，Such as mobile phone、Panel computer、The equipment such as notebook，Need to cover the global system for mobile communications GSM850 (824-894MHz) of 2G mobile communication system simultaneously,GSM900(880-960MHz)、Digital Cellular System DCS (1710-1880MHz) and PCS Personal Communications System,PCS(1850-1990MHz)，The UMTS UMTS (1920-2170MHz) of 3G mobile communication system，The LTE system LTE700 (698-787MHz) of 4G mobile communication system、LTE2300 (2300-2400MHz) and LTE2500 (2500-2690MHz)，Future situation that 2G/3G/4G mobile communication system coexists by long term maintenance.In addition, accounting, slimming, narrow frame, metallized trend development is shielded towards height with mobile terminal device, cause that the space that mobile terminal antenna for mobile phone designs is more and more narrower, how in little bulk, to design the antenna meeting 2G/3G/4G communication need, become a challenge of mobile terminal antenna design field.
For realizing broadband mobile terminal antenna under little bulk, the main flow antenna form being generally selected is monopole antenna.In mobile communication frequency range, it generally has two modes of resonance (1/4 wavelength resonance mode and 3/4 wavelength resonance mode).Except two fundamental resonance patterns, monopole antenna may also be combined with multiple matching technique and realizes the broadband character under small size space, for instance: couple feed matching technique, lumped-parameter element matching technique, element with distributed parameters matching technique and Reconfiguration Technologies etc..No matter use which kind of technology, restriction due to fundamental resonance pattern 1/4 wavelength resonance mode of monopole antenna, LTE700, GSM850, GSM900 in coupling low-frequency range are all relatively difficult, reason is in that low-frequency range 1/4 wavelength is often comparable with mobile terminal device size, and mobile terminal device can only provide fraction space to Antenna Design.For realizing the broadband mobile terminal antenna under small size, lumped-parameter element matching technique is widely used in mobile terminal antenna design, only for regulating low frequency bandwidth or producing new resonance point to widen the frequency band of low frequency at low frequency.But, the introducing of lumped-parameter element often causes loss.Therefore, the present invention adopts the monopole antenna form driving branch combination double; two branch coupling ground branch, in low-frequency range LTE700, GSM850, GSM900, produce two 1/4 wavelength resonance mode and realize while low-frequency range covers, utilize 3/4 wavelength mode driving branch, long 3/4 wavelength mode coupling branch autoeciously and introduce 1/4 wavelength resonance mode of short coupling branch autoeciously and tuning minor matters realize the covering of high band DCS, PCS, UMTS, LTE2300 and LTE2500.The present invention proposes a kind of mobile terminal WWAN/LTE antenna, do not using any lumped-parameter element and under the premise of the non-floor level of only 8mm, achieve the covering of LTE700, GSM850, GSM900, DCS, PCS, UMTS, LTE2300 and LTE2500 frequency range, meet the small sized antenna design requirement under 2G/3G/4G communication need frequency range.
Summary of the invention
The present invention proposes a kind of do not using lumped-parameter element and when less non-floor level, it is possible to cover the mobile terminal WWAN/LTE antenna of multiband.
It is a feature of the present invention that containing antenna body (1), dielectric-slab (2), microstrip-fed line (3) and metal floor (4), wherein:
Dielectric-slab (2), length, width and height X, Y, Z represent, respectively 128mm × 70mm × 0.8mm, zero in the upper left corner,
Metal floor (4), length and width are 120mm × 70mm respectively, is imprinted on dielectric-slab (2), also aligns with described dielectric-slab in the width direction in the end of described metal floor (4),
Microstrip-fed line (3), length and width are 40mm × 1.5mm, it is positioned at the back side of described dielectric-slab (2), the left hand edge 10mm of dielectric-slab (2) described in the distance of left side, antenna feed point (5) is connected to the lower extreme point of described microstrip-fed line (3) after described metal floor (4), feed current flows into antenna body (1) along negative X-direction
Antenna body (1), is driven branch (1a) and double; two branch to couple branch (1a, 1b, 1d, 1e) autoeciously and collectively form by T-shape, wherein,
T-shape drives branch (1a), the top-rear side of described dielectric-slab (2) it is printed on along negative Y direction, wherein: vertical component minor matters length and width are 5.5mm × 1.5mm, downside is connected with the feed current outflow end of described microstrip-fed line (3), upside is connected with the horizontal component minor matters that length and width are 70mm × 2mm
The described pair of branch couples branch autoeciously and couples branch (1b), short coupling branch autoeciously (1c), tuning minor matters (1d) and short-circuit minor matters (1e) autoeciously and constitute by growing, wherein,
Long couple branch (1b) autoeciously, by first long couple autoeciously branch (1b1), second long couple branch (1b2) and the 3rd long coupling ground branch (1b3) autoeciously and collectively form, wherein:
First length couples branch (1b1) autoeciously, is flatly imprinted on the top in described dielectric-slab front, and length and width are 67mm × 2mm, and right-hand member is 3mm from described dielectric-slab (2) right hand edge, and X-direction width is 2mm,
Second length couples branch (1b2) autoeciously, it is described dielectric-slab (2) upper left corner along the outward extending part of negative x-axis, it is 8mm along the negative Y direction length from zero, width along negative X-direction is 5mm, couple branch (1b1) upper side edge left end autoeciously on the downside of its long limit to be connected with described first
3rd length couples branch (1b3) autoeciously, and base is in the top of negative Y-axis with being connected to the described second long coupling branch (1b2), and length is 28mm, and the broadside along negative X-axis is 3mm,
The described second long branch (1b2) autoeciously that couples grows, along with described first, the folded edge coupling ground branch (1b1), relative to described dielectric-slab (2) front varus 90 °,
Short coupling branch autoeciously (1c), is printed on described dielectric-slab (2) front along negative Y direction, long for 31mm, left end from described dielectric-slab left hand edge 36mm, lower side from the top side 0.3mm of described metal floor (4),
Tuning minor matters (1d), for regulating or widen the frequency band of antenna, tuned minor matters (1d1), second tune minor matters (1d2), the 3rd tuning minor matters (1d3) and the 4th tuning minor matters (1d4) by first to collectively constitute, wherein:
First tuning minor matters (1d1), the length along negative Y direction and the width along X-direction are 2mm × 1mm, and its long limit is connected on the right side of the base of branch (1b1) right-hand member side 14mm beginning autoeciously with apart from the described first long coupling,
Second tune minor matters (1d2), for described dielectric-slab (2) the upper right angularly negative upwardly extending part of X-direction, starting length along the y-axis direction from described dielectric-slab (2) right hand edge is 40mm, height along negative X-direction is 10mm, base is connected with the described first long top margin coupling branch (1b1) autoeciously, described second tune minor matters (1d2) grow, along with described first, the folded edge coupling ground branch (1b1), relative to described dielectric-slab (2) front varus 90 °, and described second tune minor matters (1d2) are along dielectric-slab (2) varus 90 ° described in the folding alignment of its 1/2 At The Height horizontal direction,
3rd tuning minor matters (1d3), length along negative Y direction is 3mm, and the height along X-direction is 4mm, is starting apart from described dielectric-slab (2) left hand edge 13mm place, it is connected on the left of branch (1b1) base autoeciously with described first long coupling
4th regulates minor matters (1d4), in " ┌ " type, in platypelloid type, from negative X-axis, along negative Y direction directly to couple, with the described 3rd, the base length that branch (1b3) top margin is connected autoeciously be 10mm, and top margin length is 15mm, the difference in height that described base tunes, with described " ┌ " type the 4th, the horizontal minor matters bottom surface that minor matters (1d4) are stretched out to the right is 2mm, described base tunes minor matters (1d4) and couples the fold line of autoeciously branch (1b2) intersection relative to described dielectric-slab (2) front varus 90 ° angles along the described 3rd long branch (1b3) autoeciously that couples with described second length together with the described 3rd long branch (1b3) autoeciously that couples with described " ┌ " type the 4th,
Short circuit minor matters (1e), it is connected with the short dot (6) on described metal floor (4) top, front in bottom center, described short circuit minor matters (1e) is 8mm along the height of X-direction, from described dielectric-slab (2) right hand edge, length along Y direction is 3mm, and the left side edge X-direction of described short circuit minor matters (1e) long couples branch (1b1) autoeciously with described first successively respectively, the right edge of short coupling branch autoeciously (1c) is connected.
The present invention contrasts existing inventive technique and has following clear superiority:
1., when not using lumped-parameter element, utilize the mode driving branch combination to couple branch autoeciously, under less non-ground board size, it is achieved cover eight frequency ranges of WWAN/LTE.
2. little owing to occupying non-ground board size, cover frequency range width, it is adaptable to the communication need of current high screen accounting mobile terminal device and design requirement.
3. antenna structure is simple, be prone to making, can when low cost, scale of mass production.
Accompanying drawing explanation
Fig. 1 is a front general chart for the mobile terminal WWAN/LTE antenna that the present invention proposes, and dimensional units is millimeter (mm).
Fig. 2 is the rear view of the example antenna that the present invention proposes and concrete size, and dimensional units is millimeter (mm).
Fig. 3 is the front plan expanded view of the example antenna that the present invention proposes and concrete size, and dimensional units is millimeter (mm).
Fig. 4 is the antenna reflection coefficient of the example antenna actual measurement that the present invention proposes.
Fig. 5 is the radiation pattern of the example antenna actual measurement that the present invention proposes.
Fig. 6 is the antenna gain of the example antenna actual measurement that the present invention proposes.
Fig. 7 is the antenna efficiency of the example antenna actual measurement that the present invention proposes.
Detailed description of the invention
The present invention proposes a kind of do not using lumped-parameter element and when less non-floor level, it is possible to cover the mobile terminal WWAN/LTE antenna of multiband.Its front general chart is as shown in Figure 1.As seen from the figure, the antenna that the present invention proposes mainly is made up of antenna body, dielectric-slab, microstrip-fed line, metal floor four part.Antenna body part is printed on dielectric-slab, and part is by folding mode Special composition three dimensional folded structure.
The material that dielectric-slab adopts is FR4, and loss angle tangent is 0.02.The metal floor of dielectric-slab front printing is connected with antenna body, the effect of the approximate screen replacing mobile terminal device and component, also functions to necessarily radiate and guide into electromagnetic effect.
Antenna body is driven branch, double; two branch to couple branch autoeciously to constitute by T-shape.Wherein, T-shape drives branch by feeding microstrip line direct feed and to participate in aerial radiation, double; two branches couple autoeciously branch by grow couple autoeciously branch, short coupling branch autoeciously, short circuit minor matters and tuning minor matters constitute, electric current flows into double; two branch from metal floor through short circuit minor matters with coupled modes and couples branch autoeciously, thus realizing electromagnetic radiation.Tuning minor matters play the effect of fine setting antenna frequency band.
Designing antenna operation principle of the present invention is as follows: " T " drives branch to produce quarter-wave and 3/4ths wavelength resonance mode of two monopoles.The long branch autoeciously that couples produces quarter-wave and 3/4ths wavelength resonance mode of two monopoles.Short coupling branch autoeciously produces the quarter-wave resonance pattern of a monopole.Wherein, " T " drives the quarter-wave long pattern that branch produces to be in low-frequency range with the long resonant frequency coupling the quarter-wave resonance pattern that branch produces autoeciously, it is achieved cover LTE700, GSM850 and GSM900 frequency range.T-shape drives the resonant frequency of 1/4th modes of resonance of 3/4ths wavelength mode of branch generation, long 3/4ths wavelength resonance mode coupling branch generation autoeciously and short coupling branch to be autoeciously in high band, three mode of resonance combineds effect, a broadband is formed, it is achieved cover DCS, PCS, UMTS, LTE2300 and LTE2500 frequency range at high band.Additionally, tuning minor matters are for the fine setting of antenna frequency band.
It is capable of not using lumped-parameter element and the multiband when less non-floor level to cover for checking inventive antenna, according to life size marked in Fig. 1, Fig. 2 and Fig. 3, make an example antenna, and test has obtained the reflection coefficient of antenna, antenna radiation pattern, gain and antenna radiation efficiency.
The test result of the antenna reflection coefficient of example antenna is as shown in Figure 4,-6dB the impedance bandwidth of this example antenna is 285MHz (695MHz-980MHz) and 1.05GHz (1690MHz-2740MHz), cover LTE700, GSM850, GSM900, DCS, PCS,, UMTS, LTE2300 and LTE2500, meet current 2G/3G/4G communication need.
The test result of example radiation pattern is as it is shown in figure 5, Fig. 5 sets forth example antenna antenna pattern under 725MHz, 825MHz, 925MHz, 1750MHz, 2350MHz, 2600MHz frequency.From Fig. 5, it can be seen that antenna at the antenna pattern of three frequencies (725MHz, 825MHz, 925MHz) of low-frequency range close to the shape of dipole radiation pattern.And three frequencies (1750MHz, 2350MHz, 2600MHz) of high band, it being mixed with 1/4 wavelength and 3/4 wavelength resonance mode due to mode of resonance, antenna pattern becomes irregular, and has certain directivity to floor tilt.
As shown in Figure 6, at low-frequency range (LTE700, GSM850, GSM900), the actual measurement gain of example antenna is-0.2dBi-3.73dBi to the test result of example antenna gain；At high band (DCS, PCS, UMTS, LTE2300 and LTE2500), the actual measurement gain of example antenna is 1.98dBi-3.91dBi, it is sufficient to meet the gain requirements of mobile terminal wireless telecommunications.
The test result of example antenna radiation efficiency is as it is shown in fig. 7, at low-frequency range (LTE700, GSM850, GSM900), the actual measurement radiation efficiency of example antenna is 54.5%-92.3%；At high band (DCS, PCS, UMTS, LTE2300 and LTE2500), the actual measurement radiation efficiency of example antenna is 64.7%-90.5%.In 2G/3G/4G communication need frequency range, energy all can radiate preferably.
In sum, the present invention proposes a kind of when not using lumped-parameter element, the small size Multi-band mobile terminal antenna structure of 8mm × 70mm × 5.8mm, this antenna structure can cover the modern LTE700 of 2G/3G/4G communication need, GSM850, GSM900, DCS, PCS, UMTS, LTE2300 and LTE2500 frequency range, and covering in frequency range, there is higher antenna gain and efficiency, fully meet the demand of the modern small size of wireless telecommunications, multiband.
Claims (1)
1. the multiband aerial being available for high screen accounting used for mobile terminal without lumped-parameter element is characterized in that, contain: antenna body (1), dielectric-slab (2), microstrip-fed line (3) and metal floor (4), wherein:
Dielectric-slab (2), length, width and height X, Y, Z represent, respectively 128mm × 70mm × 0.8mm, zero in the upper left corner,
Metal floor (4), length and width are 120mm × 70mm respectively, is imprinted on dielectric-slab (2), also aligns with described dielectric-slab in the width direction in the end of described metal floor (4),
Microstrip-fed line (3), length and width are 40mm × 1.5mm, it is positioned at the back side of described dielectric-slab (2), the left hand edge 10mm of dielectric-slab (2) described in the distance of left side, antenna feed point (5) is connected to the lower extreme point of described microstrip-fed line (3) after described metal floor (4), feed current flows into antenna body (1) along negative X-direction
Antenna body (1), is driven branch (1a) and double; two branch to couple branch (1a, 1b, 1d, 1e) autoeciously and collectively form by T-shape, wherein,
T-shape drives branch (1a), the top-rear side of described dielectric-slab (2) it is printed on along negative Y direction, wherein: vertical component minor matters length and width are 5.5mm × 1.5mm, downside is connected with the feed current outflow end of described microstrip-fed line (3), upside is connected with the horizontal component minor matters that length and width are 70mm × 2mm
The described pair of branch couples branch autoeciously and couples branch (1b), short coupling branch autoeciously (1c), tuning minor matters (1d) and short-circuit minor matters (1e) autoeciously and constitute by growing, wherein,
Long couple branch (1b) autoeciously, by first long couple autoeciously branch (1b1), second long couple branch (1b2) and the 3rd long coupling ground branch (1b3) autoeciously and collectively form, wherein:
First length couples branch (1b1) autoeciously, is flatly imprinted on the top in described dielectric-slab front, and length and width are 67mm × 2mm, and right-hand member is 3mm from described dielectric-slab (2) right hand edge, and X-direction width is 2mm,
Second length couples branch (1b2) autoeciously, it is described dielectric-slab (2) upper left corner along the outward extending part of negative x-axis, it is 8mm along the negative Y direction length from zero, width along negative X-direction is 5mm, couple branch (1b1) upper side edge left end autoeciously on the downside of its long limit to be connected with described first
3rd length couples branch (1b3) autoeciously, and base is in the top of negative Y-axis with being connected to the described second long coupling branch (1b2), and length is 28mm, and the broadside along negative X-axis is 3mm,
The described second long branch (1b2) autoeciously that couples grows, along with described first, the folded edge coupling ground branch (1b1), relative to described dielectric-slab (2) front varus 90 °,
Short coupling branch autoeciously (1c), is printed on described dielectric-slab (2) front along negative Y direction, long for 31mm, left end from described dielectric-slab left hand edge 36mm, lower side from the top side 0.3mm of described metal floor (4),
Tuning minor matters (1d), for regulating or widen the frequency band of antenna, tuned minor matters (1d1), second tune minor matters (1d2), the 3rd tuning minor matters (1d3) and the 4th tuning minor matters (1d4) by first to collectively constitute, wherein:
First tuning minor matters (1d1), the length along negative Y direction and the width along X-direction are 2mm × 1mm, and its long limit is connected on the right side of the base of branch (1b1) right-hand member side 14mm beginning autoeciously with apart from the described first long coupling,
Second tune minor matters (1d2), for described dielectric-slab (2) the upper right angularly negative upwardly extending part of X-direction, starting length along the y-axis direction from described dielectric-slab (2) right hand edge is 40mm, height along negative X-direction is 10mm, base is connected with the described first long top margin coupling branch (1b1) autoeciously, described second tune minor matters (1d2) grow, along with described first, the folded edge coupling ground branch (1b1), relative to described dielectric-slab (2) front varus 90 °, and described second tune minor matters (1d2) are along dielectric-slab (2) varus 90 ° described in the folding alignment of its 1/2 At The Height horizontal direction,
3rd tuning minor matters (1d3), length along negative Y direction is 3mm, and the height along X-direction is 4mm, is starting apart from described dielectric-slab (2) left hand edge 13mm place, it is connected on the left of branch (1b1) base autoeciously with described first long coupling
4th regulates minor matters (1d4), in " ┌ " type, in platypelloid type, from negative X-axis, along negative Y direction directly to couple, with the described 3rd, the base length that branch (1b3) top margin is connected autoeciously be 10mm, and top margin length is 15mm, the difference in height that described base tunes, with described " ┌ " type the 4th, the horizontal minor matters bottom surface that minor matters (1d4) are stretched out to the right is 2mm, described base tunes minor matters (1d4) and couples the fold line of autoeciously branch (1b2) intersection relative to described dielectric-slab (2) front varus 90 ° angles along the described 3rd long branch (1b3) autoeciously that couples with described second length together with the described 3rd long branch (1b3) autoeciously that couples with described " ┌ " type the 4th,
Short circuit minor matters (1e), it is connected with the short dot (6) on described metal floor (4) top, front in bottom center, described short circuit minor matters (1e) is 8mm along the height of X-direction, from described dielectric-slab (2) right hand edge, length along Y direction is 3mm, and the left side edge X-direction of described short circuit minor matters (1e) long couples branch (1b1) autoeciously with described first successively respectively, the right edge of short coupling branch autoeciously (1c) is connected.
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| CN112164868A (en) * | 2020-09-23 | 2021-01-01 | RealMe重庆移动通信有限公司 | Antenna module and terminal |
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|---|---|---|---|---|
| CN107946747A (en) * | 2017-11-29 | 2018-04-20 | 深圳市信维通信股份有限公司 | A kind of double WIFI mimo antennas and the all-metal notebook using the antenna |
| CN107946747B (en) * | 2017-11-29 | 2023-09-12 | 深圳市信维通信股份有限公司 | Double WIFI MIMO antenna and all-metal notebook adopting same |
| CN108682958A (en) * | 2018-05-18 | 2018-10-19 | 中国计量大学 | A kind of antenna for mobile phone of narrow frame |
| CN109301476A (en) * | 2018-11-21 | 2019-02-01 | 深圳市信维通信股份有限公司 | A kind of metal back cover plate LTE ultra-wide band antenna |
| CN109301476B (en) * | 2018-11-21 | 2023-12-01 | 深圳市信维通信股份有限公司 | Flat LTE (Long term evolution) ultra-wideband antenna with metal back cover |
| CN112164868A (en) * | 2020-09-23 | 2021-01-01 | RealMe重庆移动通信有限公司 | Antenna module and terminal |
| CN112164868B (en) * | 2020-09-23 | 2023-04-07 | RealMe重庆移动通信有限公司 | Antenna module and terminal |
| CN113285221A (en) * | 2021-05-21 | 2021-08-20 | 昆山睿翔讯通通信技术有限公司 | Broadband terminal antenna and mobile terminal |
| CN113285221B (en) * | 2021-05-21 | 2024-03-22 | 昆山睿翔讯通通信技术有限公司 | Broadband terminal antenna and mobile terminal |
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| Publication number | Publication date |
|---|---|
| CN105789901B (en) | 2018-08-28 |
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