CN213425191U - Multi-band antenna and call equipment - Google Patents
Multi-band antenna and call equipment Download PDFInfo
- Publication number
- CN213425191U CN213425191U CN202022400699.4U CN202022400699U CN213425191U CN 213425191 U CN213425191 U CN 213425191U CN 202022400699 U CN202022400699 U CN 202022400699U CN 213425191 U CN213425191 U CN 213425191U
- Authority
- CN
- China
- Prior art keywords
- vertical
- horizontal
- slot
- antenna
- width
- 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
Images
Landscapes
- Waveguide Aerials (AREA)
Abstract
The utility model relates to a multifrequency section antenna and speech equipment, this multifrequency section antenna includes: a dielectric substrate; a radiating antenna, comprising: a first radiation part which is arranged on one side surface of the dielectric substrate and is provided with a feeding point; a second radiation part disposed on one side surface of the dielectric substrate and connected with the first radiation part; the grounding plate is formed on the other side surface of the dielectric substrate, which is opposite to the one side surface, a first slot and a second slot are etched on the grounding plate, the first slot corresponds to the radiation antenna, and the second slot is coupled with the radiation antenna; the first radiating part, the first slot, the second radiating part and the second slot are matched to form a plurality of low-frequency bands and a plurality of high-frequency bands. The utility model is used for realize antenna small-size and multifrequency section performance.
Description
Technical Field
The utility model belongs to the technical field of the antenna, concretely relates to multifrequency section antenna and speech equipment.
Background
With the development of scientific technology and the improvement of the quality of life level, people increasingly want to miniaturize and lighten communication equipment (such as mobile phones, communication sound equipment and the like), and the wearable equipment is limited by small volume, multiple functions and larger difficulty in designing antennas. With the rapid development of the internet of things technology and the wireless communication technology, more and more wireless frequency bands are established, which requires that the antenna can work on more frequency bands.
At present, the antennas in electronic devices mostly adopt a single multi-branch technology or a slotting technology to realize multi-frequency functions. The antenna adopting the multi-branch technology needs a plurality of branches to realize multi-frequency because one branch generates a frequency band, so that the size of the antenna is large, the miniaturization design is difficult to realize, and the antenna cannot meet the requirements of miniaturization and lightness of electronic equipment.
Disclosure of Invention
An object of the utility model is to provide a multiband antenna for realize antenna small-size and multiband performance.
In order to solve the technical problem, the utility model provides a following technical scheme solves:
the present application relates to a multiband antenna, characterized in that it comprises: a dielectric substrate; a radiating antenna, comprising: a first radiation part which is arranged on one side surface of the dielectric substrate and is provided with a feeding point; a second radiation part disposed on one side surface of the dielectric substrate and connected to the first radiation part; the grounding plate is formed on the other side surface of the dielectric substrate, which is opposite to the one side surface, a first slot and a second slot are etched on the grounding plate, the first slot corresponds to the radiation antenna, and the second slot is coupled with the radiation antenna; the first radiating part, the first slot, the second radiating part and the second slot are matched to form a plurality of low-frequency bands and a plurality of high-frequency bands.
In the present application, the radiation antenna is provided on a top side of one side surface of the dielectric substrate; the first radiation portion includes: a first vertical stub, the bottom end of which far away from the top side forms the feeding point; the L-shaped radiation branch knot is vertically butted on one vertical side edge of the first vertical branch knot, the L-shaped radiation branch knot comprises a first horizontal branch knot and a second vertical branch knot, the first horizontal branch knot and the first vertical branch knot form a T shape, and the second vertical branch knot extends towards the top end; the second radiation portion includes: and the second horizontal branch knot is connected with the vertical side edge of the first vertical branch knot and is positioned below the first horizontal branch knot, and the second horizontal branch knot extends in parallel along the length direction of the first horizontal branch knot.
In the present application, the width W3 of the first vertical branch is 2.5mm, the vertical length L1 is 17mm, and the distance W4 from the outer side edge of the first vertical branch to the side edge of the medium substrate parallel to and close to the outer side edge is 4.5 mm; the width L3 of the first horizontal branch is 2mm, and the horizontal length is 53 mm; the width W2 of the second vertical branch is 2.5mm, the vertical length L2 is 10mm, and the free end of the second vertical branch is flush with the end part, close to the top end, of the first vertical branch; the width L4 of the second horizontal branch is 2mm, the horizontal length W5 is 15.5mm, and the parallel distance from the first horizontal branch is 2 mm.
In the present application, the first slot is an L-shaped slot that forms a first opening in the top edge of the media substrate; the second open groove is an L-shaped groove, and a second opening is formed in one side edge of the medium substrate; the opening directions of the first opening and the second opening are perpendicular to each other, and the L-shaped corner of the first slot and the L-shaped corner of the second slot are in the same direction.
In the present application, the first slot includes: a first vertical portion having the first opening, an opening width of the first opening being a width of the first vertical portion; a first horizontal portion vertically butted against the first vertical portion; the second slot includes: a second vertical portion parallel to the first vertical portion; a second horizontal portion vertically butted against the second vertical portion and parallel to the first horizontal portion, the second horizontal portion having the second opening, the opening width of the second opening being equal to the width of the second horizontal portion.
In the present application, the width W8 of the first vertical portion is 25mm, and the vertical length L8 is 6 mm;
the width of the first horizontal part is 4mm, the horizontal length of the first horizontal part is 47.5mm, and the distance from the outer side edge of the first vertical part to the side edge, parallel to the outer side edge, of the grounding plate and close to the outer side edge is 10 mm; the width W10 of the second vertical part is 6mm, and the vertical length L7 is 13 mm; the width L6 of the second horizontal part is 7mm, the horizontal length is 58mm, the distance W11 of the outer side edge of the second vertical part from the side edge of the grounding plate which is parallel to the outer side edge and close to the outer side edge is 2mm, and the parallel distance between the first horizontal part and the second horizontal part is 2 mm.
In the present application, the dielectric substrate is FR4 dielectric substrate with a dielectric constant of 4.4, and has a length L of 105mm, a width W of 50mm, and a thickness of 0.8 mm.
The utility model provides a multifrequency section antenna has following beneficial effect and advantage:
(1) the first slot and the second slot are formed by slotting the grounding plate through the first radiation part and the first radiation part, the performance of the multi-band antenna is optimized by adjusting the radiation branch of the radiation part and coupling with the first slot and the second slot, a plurality of low resonance points and a plurality of high resonance points are covered, and the covering of a plurality of low frequency bands and a plurality of high frequency bands of the antenna is realized;
(2) the multi-band antenna has a simple structure, is easy to manufacture, can realize small size, and is beneficial to product miniaturization and light and thin design.
The utility model discloses a second purpose provides a speech equipment for realize the design of antenna small-size and multifrequency section among the speech equipment, be favorable to the product to miniaturize and frivolous design, and multifrequency section enlarges speech equipment's use area.
In order to solve the technical problem, the utility model provides a following technical scheme solves:
the present application also relates to a telephony device, comprising: a multiband antenna as described above.
In this application, the communication device is a mobile phone or a communication sound.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments of the present invention or the description of the prior art will be briefly described below, and it is obvious that the drawings described below are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of one embodiment of a multiband antenna according to the present invention;
FIG. 2 is a rear view of one embodiment of the multi-band antenna of the present invention;
FIG. 3 is a rear view of one embodiment of the multi-band antenna of the present invention, with a radiating antenna shown in perspective;
FIG. 4 is a simulation curve a of S parameter of the first radiation portion in the multi-band antenna and a simulation curve b of S parameter when the first radiation portion is coupled with the first slot in the process of forming the multi-band antenna embodiment of the present invention;
fig. 5 is a simulation curve c of the S parameter when the first radiation portion, the first slot and the second slot are coupled and a simulation curve d of the S parameter when the first radiation portion, the second radiation portion, the first slot and the second slot are coupled in the process of forming the multi-band antenna provided by the present invention;
fig. 6 is a simulation curve d and an actual measurement curve e of the S parameter of the multiband antenna provided by the present invention;
FIG. 7 shows a simulation curve a1 and an actual measurement curve a2 of the gain, a3 and an actual measurement curve a4 of the multiband antenna operating under LTE700/GSM850/GSM 900;
fig. 8 is a simulation curve b1 and an actual measurement curve b2 of the gain, a simulation curve b3 and an actual measurement curve b4 of the multi-band antenna provided by the present invention operating under GSM1800/GSM1900/UMTS/LTE2300/LTE 2500.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
Example one
The embodiment relates to a miniaturized multiband built-in antenna, which comprises a plurality of low-frequency bands (such as LTE700, GSM 850/900) and a plurality of high-frequency bands (GSM 1800/1900, UMTS2100, LTE2300/2500 and the like).
In order to realize a plurality of low frequency bands and a plurality of high frequency bands of the antenna, referring to fig. 1 to 3, the present embodiment relates to a multiband antenna including a dielectric substrate 10, a radiating antenna, and a ground plate 20.
The dielectric substrate 10 is a carrier, and in this embodiment, the parameters of the dielectric substrate 10 are as follows: FR4 was used as a substrate, and had a dielectric constant of 4.4, a rectangular parallelepiped shape, a length L =105mm, a width W =60mm, and a thickness of 0.8 mm.
Referring to fig. 1, a radiation antenna is designed on one side surface (referred to as an upper surface) of the dielectric substrate 10, the radiation antenna includes a first radiation portion and a second radiation portion connected to the first radiation portion, and a feeding point F is formed on the first radiation portion.
The radiation antenna is disposed near the tip of the dielectric substrate 10 in the longitudinal direction (i.e., the direction of the length L).
Referring to fig. 1, the radiation antenna includes a first radiation portion and a second radiation portion, the first radiation portion includes a first vertical portion and an L-shaped radiation branch connected to the first vertical portion, and the second radiation portion includes a second horizontal branch connected to the first vertical portion.
The dimensions of the first and second radiating portions are described with reference to fig. 1 and 3.
The length of the first vertical portion extends along the length direction of the media substrate 10, with a length L1=17mm, the width extends along the width direction of the media substrate 10 (i.e., the direction of the width W), and the width W3=2.5 mm; one end of the first vertical portion is flush with the side of the top end of the dielectric substrate 10, and the distance W4=4.5mm from the right side of the dielectric substrate 10 is the right side of the first vertical portion. The first vertical portion forms a feeding point F at an end thereof distant from the top end of the dielectric substrate 10.
The L-shaped radiation branch section comprises a first horizontal part and a second vertical part vertically butted with the first horizontal part.
One end of the first horizontal portion is connected to the left side edge of the first vertical portion and extends in the width direction of the media substrate 10, the length is W1+ W2=50.5mm +2.5mm =53mm, the width extends in the length direction of the media substrate 10, and the width is L3=2 mm.
The second vertical portion has a length extending in the longitudinal direction of the dielectric substrate 10 to the edge of the top end of the dielectric substrate 10, a length L2=10mm, a width extending in the width direction of the dielectric substrate 10, and a width W2=2.5 mm.
In the embodiment, the first vertical branch and the first horizontal branch form a T shape, and the length from the edge of the top end of the dielectric substrate 10 at the connecting position of the two branches is L2-L3=10mm-2mm =8 mm.
The second horizontal branch is connected to the left side of the first vertical portion and horizontally extends along the width direction of the dielectric substrate 10, and the length W5=15.5mm of the horizontal extension is wide along the length direction of the dielectric substrate 10, and the width L4=2 mm. The second horizontal branch is located below the first horizontal branch in parallel, and the parallel distance between the second horizontal branch and the first horizontal branch is L14-L2-L4=14mm-10mm-2mm =2 mm.
In order to realize coupling with the radiation antenna, referring to fig. 2, a ground plate 20 is provided on the other side surface (referred to as a lower surface) of the dielectric substrate 10 opposite to the one side surface, and a first open groove 21 and a second open groove 22 are etched on the ground plate 20.
The ground plate 20 may be formed by copper-clad layers on the lower surface of the dielectric substrate 10, and the shape and area of the ground plate 20 may be equal to those of the dielectric substrate 10, that is, the longitudinal direction of the ground plate 20 may be aligned with the longitudinal direction of the dielectric substrate 10, and the width direction of the ground plate 20 may be aligned with the width direction of the dielectric substrate 10.
Referring to fig. 2, the first slot 21 and the second slot 22 are both located at the top end of the ground plate 20, and the first slot 21 and the second slot 22 are both L-shaped slots, and the directions of the L-shaped corner of the first slot 21 and the L-shaped corner of the second slot 22 are the same.
The first slot 21 has a first opening, the second slot 22 has a second opening, and the opening direction of the first opening is perpendicular to the opening direction of the second opening.
Referring to fig. 2, the shape and size of the lower first slot 21 and the second slot 22 are described in detail.
The first slot 21 includes a first vertical portion and a first horizontal portion vertically butted against the first vertical portion.
The length direction of the first vertical part extends along the length direction of the ground plate 20, the length L7= L3mm, the width direction extends along the width direction of the ground plate 20, the width W10=6mm, the distance from one end of the first vertical part close to the top end of the ground plate 20 to the edge of the top end of the ground plate 20 is L5+ L6-L7 =8mm +7mm-13mm =2mm, and the distance from the right side edge of the first vertical part to the right side edge of the ground plate 20 is W11=2 mm.
The horizontal length direction of the first horizontal portion extends along the width direction of the ground plate 20, the length W12=58mm, and the width direction extends along the length direction of the ground plate 20 to the left side edge of the ground plate 20, and the width L6=7mm, wherein a first opening is formed at the left side edge of the ground plate 20, and the opening width of the first opening is equal to the width 7mm of the first horizontal portion.
The second slot 22 includes a second vertical portion and a second horizontal portion vertically interfacing with the second vertical portion.
The vertical length direction of the second vertical part extends from the edge of the top end of the ground plate 20 in the length direction of the ground plate 20, the length L8=6mm, the width direction extends in the width direction of the ground plate 20, the width W8=25mm, wherein a second opening is formed at the edge of the top end of the ground plate 20, and the opening width of the second opening is equal to the width 25mm of the second vertical part.
The distance between the second vertical part and the first vertical part is W12-W6-W7-W8-W10=58mm-2.5mm-22.5mm-25mm-6mm =2 mm.
The horizontal length direction of the second horizontal portion extends along the width direction of the ground plate 20, the length is W6+ W7+ W8=2.5mm +22.5mm +25mm =50mm, the width direction extends along the length direction of the ground plate 20, and the width is L9=4 mm.
The second horizontal part is located above the first horizontal part, and the distance between the first horizontal part and the second horizontal part is L5-L8=8mm-6mm =2 mm.
Referring to the radiation antenna disposed on the upper surface of the dielectric substrate 10 in fig. 1 and the first slot 21 and the second slot 22 disposed on the ground plate 20 in fig. 2, the radiation antenna is shown in perspective in fig. 3, and it can be seen that the radiation antenna is correspondingly disposed at the first slot 21 and coupled with the second slot 22 to implement a plurality of low frequency bands and a plurality of high frequency bands.
Referring to fig. 4 and 5, simulation graphs of S-parameters when forming the multiband antenna are shown. The S parameter in these figures may specifically refer to the S11 parameter. At S11 < -10dB, the antenna can be considered to meet the communication requirements.
Referring to fig. 4, a simulation curve a shows a simulation graph of the S parameter under the action of the first radiation part alone; the simulation curve b shows a simulation graph of the S parameter under the action of the first radiation part and the first slot.
Referring to graph a, the antenna is capable of generating a resonance point around 1100MHz and a resonance point of 3000MHz at a high frequency when S11 < -10dB is satisfied.
Referring to graph b, the antenna is able to generate a low frequency resonance point around 720MHz when S11 < -10dB is satisfied.
The combined action of the two resonant modes realizes the coverage of the LTE700, GSM850 and GSM900 low frequency bands.
Referring to fig. 5, a simulation curve c shows a simulation graph of the S parameter under the combined action of the first radiation part, the first slot 21 and the second slot 22; the simulation curve d shows a simulation diagram of the S parameter under the combined action of the first radiation part, the second radiation part, the first slot 21 and the second slot 22.
Referring to the graph c, by forming the second slot 22, the resonance point originally at 3000MHz is moved to be near 1700MHz, and the second slot 22 provides a new resonance point for the high frequency band.
Referring to the graph d, in order to further increase the high-band performance, the second radiation part is added, the antenna can generate a resonance point near 2800MHz, and finally the antenna realizes the coverage of LTE700, GSM850, GSM900, GSM1800, GSM1900, UMTS2100, LTE2300 and LTE2500 bands, and realizes the eight-band coverage of the antenna.
Referring again to fig. 6, a simulation graph d and an actual measurement graph e of the S-parameter of the multiband antenna are shown.
It is seen from the graphs d and e in fig. 6 that the multiband antenna in the embodiment can realize multiband performance, and completely meet the requirements of LTE700, GSM850, GSM900, GSM1800, GSM1900, UMTS2100, LTE2300, and LTE2500 bands, so that the antenna has multiband communication performance.
FIG. 7 shows a simulation curve a1 and a measured curve a2 of the gain and a simulation curve a3 and a measured curve a4 of the efficiency of the multiband antenna operating in LTE700/GSM850/GSM 900; and fig. 8 shows a simulation curve b1 and an actual measurement curve b2 of the gain of the multiband antenna provided by the invention working under GSM1800/GSM1900/UMTS/LTE2300/LTE2500, and a simulation curve b3 and an actual measurement curve b4 of the efficiency.
As seen from FIG. 7, under the low band LTE700/GSM850/GSM900, the gain of the antenna is 0.5dBi to 2dBi, and the radiation efficiency is 60% to 84%.
As seen from FIG. 8, the antenna gain is 0.5dBi to 3dBi and the radiation efficiency is 42% to 88% in the high frequency band GSM1800/GSM1900/UMTS/LTE2300/LTE 2500. In practical applications, the radiation efficiency performance of the antenna is acceptable.
The multi-band antenna can achieve eight-band coverage, the size is 0.8mm 60mm 105mm, the millimeter-level small size of the antenna is achieved, the height is low, the multi-band antenna can be used in the existing ultra-thin and light-weight products, and the antenna has good bandwidth and high radiation efficiency.
Example two
The present embodiment relates to a communication device, such as a mobile phone, a PAD, a sound device, etc. having a pass-through function, wherein antennas are required to be designed thereon, and along with the requirement of users for the product to work in multiple frequency bands, it is also required to design multiple frequency antennas on these products.
The communication device is provided with an antenna, which is a multi-band antenna as described above, and the structure of the antenna can be obtained by referring to the description in the figures and the first embodiment, which is not described herein again.
The antenna in the call device in this embodiment provides multi-band performance of LTE700, GSM850, GSM900, GSM1800, GSM1900, UMTS2100, LTE2300, and LTE2500, and realizes eight-band requirements of the call device, and the size and height of the antenna are short.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. A multiband antenna, comprising:
a dielectric substrate;
a radiating antenna, comprising:
a first radiation part which is arranged on one side surface of the dielectric substrate and is provided with a feeding point;
a second radiation part disposed on one side surface of the dielectric substrate and connected to the first radiation part;
the grounding plate is formed on the other side surface of the dielectric substrate, which is opposite to the one side surface, a first slot and a second slot are etched on the grounding plate, the first slot corresponds to the radiation antenna, and the second slot is coupled with the radiation antenna;
the first radiating part, the first slot, the second radiating part and the second slot are matched to form a plurality of low-frequency bands and a plurality of high-frequency bands.
2. The multiband antenna of claim 1, wherein the radiation antenna is provided on a top side of one side surface of the dielectric substrate;
the first radiation portion includes:
a first vertical stub, the bottom end of which far away from the top side forms the feeding point;
the L-shaped radiation branch knot is vertically butted on one vertical side edge of the first vertical branch knot, the L-shaped radiation branch knot comprises a first horizontal branch knot and a second vertical branch knot, the first horizontal branch knot and the first vertical branch knot form a T shape, and the second vertical branch knot extends towards the top side;
the second radiation portion includes:
and the second horizontal branch knot is connected with the vertical side edge of the first vertical branch knot and is positioned below the first horizontal branch knot, and the second horizontal branch knot extends in parallel along the length direction of the first horizontal branch knot.
3. The multiband antenna of claim 2,
the width W3 of the first vertical branch is 2.5mm, the vertical length L1 is 17mm, and the distance W4 from the outer side edge of the first vertical branch to the side edge of the medium substrate, which is parallel to the outer side edge and close to the outer side edge, is 4.5 mm;
the width L3 of the first horizontal branch is 2mm, and the horizontal length is 53 mm;
the width W2 of the second vertical branch is 2.5mm, the vertical length L2 is 10mm, and the free end of the second vertical branch is flush with the end of the first vertical branch close to the top side;
the width L4 of the second horizontal branch is 2mm, the horizontal length W5 is 15.5mm, and the parallel distance from the first horizontal branch is 2 mm.
4. The multiband antenna of claim 2,
the first open groove is an L-shaped groove, and a first opening is formed in the top edge of the medium substrate;
the second open groove is an L-shaped groove, and a second opening is formed in one side edge of the medium substrate;
the opening directions of the first opening and the second opening are perpendicular to each other, and the L-shaped corner of the first slot and the L-shaped corner of the second slot are in the same direction.
5. The multiband antenna of claim 4,
the first slot includes:
a first vertical portion having the first opening, an opening width of the first opening being a width of the first vertical portion;
a first horizontal portion vertically butted against the first vertical portion;
the second slot includes:
a second vertical portion parallel to the first vertical portion;
a second horizontal portion vertically butted against the second vertical portion and parallel to the first horizontal portion, the second horizontal portion having the second opening, the opening width of the second opening being equal to the width of the second horizontal portion.
6. The multiband antenna of claim 5,
the width W8 of the first vertical part is 25mm, and the vertical length L8 is 6 mm;
the width of the first horizontal part is 4mm, the horizontal length of the first horizontal part is 47.5mm, and the distance from the outer side edge of the first vertical part to the side edge, parallel to the outer side edge, of the grounding plate and close to the outer side edge is 10 mm;
the width W10 of the second vertical part is 6mm, and the vertical length L7 is 13 mm;
the width L6 of the second horizontal part is 7mm, the horizontal length is 58mm, the distance W11 of the outer side edge of the second vertical part from the side edge of the grounding plate which is parallel to the outer side edge and close to the outer side edge is 2mm, and the parallel distance between the first horizontal part and the second horizontal part is 2 mm.
7. Multiband antenna according to one of claims 1 to 6,
the dielectric substrate is FR4 dielectric substrate with the dielectric constant of 4.4, the length L of the dielectric substrate is 105mm, the width W of the dielectric substrate is 50mm, and the thickness of the dielectric substrate is 0.8 mm.
8. A telephony device, comprising:
an antenna which is the multiband antenna of any one of claims 1 to 7.
9. The telephony device of claim 8, wherein the telephony device is a cellular phone or a telephony stereo.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022400699.4U CN213425191U (en) | 2020-10-26 | 2020-10-26 | Multi-band antenna and call equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022400699.4U CN213425191U (en) | 2020-10-26 | 2020-10-26 | Multi-band antenna and call equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213425191U true CN213425191U (en) | 2021-06-11 |
Family
ID=76248096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022400699.4U Active CN213425191U (en) | 2020-10-26 | 2020-10-26 | Multi-band antenna and call equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213425191U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI814493B (en) * | 2022-07-19 | 2023-09-01 | 廣達電腦股份有限公司 | Wearable device |
-
2020
- 2020-10-26 CN CN202022400699.4U patent/CN213425191U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI814493B (en) * | 2022-07-19 | 2023-09-01 | 廣達電腦股份有限公司 | Wearable device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100856310B1 (en) | Mobile-communication terminal | |
| KR100964204B1 (en) | Compact, low profile, single feed, multi-band, printed antenna | |
| US5945954A (en) | Antenna assembly for telecommunication devices | |
| CN204167466U (en) | A kind of metal edge frame multifrequency loop antenna | |
| KR101163419B1 (en) | Hybrid Patch Antenna | |
| EP1750323A1 (en) | Multi-band antenna device for radio communication terminal and radio communication terminal comprising the multi-band antenna device | |
| EP2562871A1 (en) | Antenna apparatus of mobile terminal | |
| US6963309B2 (en) | Multi-band antenna for use in a portable telecommunication apparatus | |
| CN105140649B (en) | A kind of multifrequency antenna | |
| CN101043101A (en) | Single feeder built-in multi-frequency band antenna for mobile communication terminal | |
| WO1996027219A1 (en) | Meandering inverted-f antenna | |
| EP2575207B1 (en) | Communication electronic device and antenna structure thereof | |
| US7639194B2 (en) | Dual-band loop antenna | |
| KR100616545B1 (en) | Multi-band laminated chip antenna using double coupling feeding | |
| US10109926B2 (en) | Antenna radiator, antenna and mobile terminal | |
| CN104183912B (en) | A kind of miniaturized dual-band monopole antenna based on metamaterial unit | |
| JP2005535239A (en) | Dual band antenna system | |
| CN212209746U (en) | Multi-band PCB antenna and wireless communication equipment | |
| CN111916897A (en) | Miniaturized multiband antenna for 5G, communication module and terminal | |
| CN213425191U (en) | Multi-band antenna and call equipment | |
| US6836246B1 (en) | Design of single and multi-band PIFA | |
| CN101505000A (en) | Multi-frequency band antenna and wireless communication terminal using the same | |
| CN110931964A (en) | Miniaturized MIMO multifrequency cell-phone antenna | |
| CN100576631C (en) | Inverted F shaped antenna | |
| CN211743413U (en) | Multi-band PCB antenna and wireless communication equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |