CN1391311A - Antenna for radio transmission device - Google Patents
Antenna for radio transmission device Download PDFInfo
- Publication number
- CN1391311A CN1391311A CN 01121182 CN01121182A CN1391311A CN 1391311 A CN1391311 A CN 1391311A CN 01121182 CN01121182 CN 01121182 CN 01121182 A CN01121182 A CN 01121182A CN 1391311 A CN1391311 A CN 1391311A
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- transmitting device
- radio transmitting
- slot type
- antenna
- type antenna
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Abstract
An antenna for wireless transmitter (small base station) conforming with IEEE 802.116 and blue tooth standards is embedded in said wireless transmitter and composed of the first and the second slot antennas, which have the feed and ground points and are perpendicular to each other. Its advantages are no dead angle and stream line appearance of wireless transmitter.
Description
Invention field
The invention relates to the technology of a kind of Wi-Fi transmission aspect, more detailed it, about a kind of antenna of radio transmitting device, make the overall appearance tool cleanliness of radio transmitting device, simultaneously, change arbitrarily antenna pedestal to the time, the antenna of the isotropic homogeneous radiation field pattern of tool still can be provided.
Background of invention
Wireless local networking WLAN (Wireless Local Area Network) is the natural tendency and the demand of computer miniaturization, individual actionization, SOHO (Small Office Home Office) change, and along with the IEEE 802.11b standard of announcing, can use 2.4GHz at industry, science and the medical frequency range of exempting to apply for to use, with its break away from cable constraint, install fast, mobility is high, safe and secret, coverage and can wear compartment, extend at original cable LAN road LAN, or replace fully.
In the wireless local networking, every computer apparatus all need be installed radio net an outpost of the tax office, and (Access Point AP) is connected in the Ethernet radio net road and bridge, so the resource in the networking is integrated and shared through base station.Wherein, in whole networking, settle many AP or the installation position of flexible in layout AP, be one of solution of extended wireless network communication distance, yet the antenna of cooperation special shape long-range is especially expanded one of main solution of communication distance.
The IEEE802.11b transmission standard all adopts two antennas at present, one is main antenna in order to emission and reception, and another be that auxiliary antenna is in order to reception, when carrying out reception, be by software control RFSWITCH, determine what person's reception situation is preferable and automatically switch with it; If it is when launching, then fixing responsible by main antenna.In addition, bluetooth (Blue Tooth) transmission standard only adopts an antenna to receive and dispatch.
But above-mentioned traditional antenna, if main antenna pedestal is when changing, easily make the transmission of horizontal plane direction produce the dead angle, when for example the LCD panel of laptop is opened, the parallel radiation pattern sub-circular of being located at the antenna of LCD panel, promptly the horizontal plane direction is isotropic homogeneous radiation field pattern (omni-directionalradiation pattern), when closing as if the LCD panel, make the Energy distribution of the radiation pattern of this antenna produce two Null, this is the transmission dead angle.
Moreover the IEEE802.11b of the usefulness of radio networking transmission at present or the AP antenna that the Bluetooth transmission standard is developed all are exposed to outside the casing with the traditional type antenna, thus destroy the cleanliness of casing integral body, and comparatively inconvenience in the assembling.
Goal of the invention and general introduction
Because the shortcoming of above-mentioned conventional art, main purpose of the present invention is to provide a kind of antenna of radio transmitting device of novelty, and it is applied to can effectively promote antenna gain under the IEEE802.11b and Bluetooth transmission standard of wireless radio transmission.
Another object of the present invention is to provide a kind of antenna of radio transmitting device, the concealed effect of its tool reaching the cleanliness of mechanism's outward appearance, and is easy to assembling.
According to above-described purpose, the antenna of radio transmitting device provided by the present invention is to be embedded in the body of radio transmitting device, and this antenna comprises: have for the distributing point of coaxial wire connection and first fluting (Slot) formula antenna of earth terminal; And have for the distributing point of coaxial wire connection and second slot type antenna of earth terminal, it is provided with in the mode perpendicular to this first slot type antenna.
Because this first slot type antenna and second slot type antenna are for orthogonal mode is provided with, make the aerial radiation field pattern form complementary effect, thereby effectively avoid producing the communication dead angle.And, for making the tool polytropy of internal body space, can be with this first slot type antenna and second slot type antenna to separate and vertical each other mode is embedded in this body.
In addition, each base portion one end of the earth terminal of this first slot type antenna and second slot type antenna interconnects, and the other end of base portion is extended along body inner wall, the earth terminal of this first slot type antenna and second slot type antenna is prolonged, base portion after the prolongation roughly is under the situation of an annular, shape or Jiong shape ground structure, in order to do frequency range at the increase antenna, and the equivalent cross-sectional area (AntennaAperture) of expansion antenna, and promote antenna gain; And,,, thereby save the die sinking cost and be easy to and assemble so need not separately molded and shapedly because this ring earthing structure makes this first slot type antenna must be one-body molded in same mould with second slot type antenna.
Illustrated simple declaration
For above and other objects of the present invention, feature and advantage can be become apparent, will with preferred embodiment, and conjunction with figs. describes embodiments of the invention in detail, the content Description of accompanying drawing is as follows:
Fig. 1 is the interior stereogram of body that the antenna of radio transmitting device of the present invention is embedded at a radio transmitting device;
Fig. 2 is the antenna of radio transmitting device of Fig. 1 and the radio transmitting device collocation application schematic diagram when using; And
Fig. 3 is the interior routine stereogram of a variation of body that the antenna of radio transmitting device of the present invention is mounted to a radio transmitting device.
Preferred embodiment describes in detail
See also Fig. 1, it is embedded at the stereogram in the body 1 of a radio transmitting device in order to the antenna that shows radio transmitting device of the present invention, at this body 1 only with the explanation of lower body 14 as present embodiment.As shown in the figure, this lower body 14 has one in order to accommodate the accommodating groove 140 of the circuit board 144 with wireless transmission processing, the sidewall of this lower body 14 be provided with one in order to the socket power plug with the power input hole 142 that supplies power to this circuit board 144, a spacer 141 in order to the antenna of fixing radio transmitting device of the present invention, and one in order to bridge to the information transmission line joint 143 that Ethernet (not shown) and defeated with the data in this circuit board 144/gateway (not shown) is connected, and this joint 143 can be the joint of RJ45 coffret.
The antenna of radio transmitting device of the present invention comprises one first slot type antenna 10, it has the distributing point 100 and earth terminal 101 that connects for coaxial wire 11, and one second slot type antenna 12, it has the distributing point 120 and earth terminal 121 that connects for coaxial wire 13, by each fluting (102,122) different size can be designed the antenna of required frequency of operation, this slot type antenna (10,12) in order to as the interconnect function between transmitting device in the wireless communication system and the airborne spread, because it is the necessary member in the general radio transmitting device, it also is the known member of insider, therefore not following will its function and inside structure not being described in further detail, and only with regard to narration related to the present invention, wherein, this first slot type antenna 10 and second slot type antenna 12 vertically are embedded in the body 1 of radio transmitting device each other, make the aerial radiation field pattern form complementary effect, thereby effectively avoid producing the communication dead angle.And, for making the tool polytropy of internal body space, can be with this first slot type antenna 10 and second slot type antenna 12 to separate and vertical each other mode is embedded in this body 1.
See also Fig. 2, the application schematic diagram when it connects in order to the antenna of the radio transmitting device of displayed map 1 and radio transmitting device 2.As shown in the figure, be a typical radio transmitting device 2 calcspars, this radio transmitting device 2 is for example in order to be connected to radio net road and bridge in the Ethernet (Ethernet), make the resource in the networking be integrated the AP that shares, it has RJ45 interface 20, Ethernet control module 21, MAC module (Media Access Control, MAC) 22, fundamental frequency generator 23, intermediate frequency transducer 24, radio frequency/intermediate frequency transducer 25, band pass filter (Band Pass Filter, BPF) 26, amplifier 27, emission/reception switch 28,2.4GHz band pass filter (BPF) 29, antenna switcher 30, first slot type antenna 10, and second slot type antenna 12.Wherein, this RJ45 interface 20, Ethernet control module 21, MAC module 22, fundamental frequency generator 23, intermediate frequency transducer 24, radio frequency/intermediate frequency transducer 25, band pass filter 26, amplifier 27, emission/reception switch 28,2.4GHz band pass filter 29, and antenna switcher 30 all is arranged on this circuit board 144, and this circuit board 144 also all is contained in the body of this radio transmitting device 2 with first slot type antenna 10 of the present invention and second slot type antenna 12.
This RJ45 interface 20 and Ethernet control module 21 are one of networking transmission rate standards between computer apparatus and communication system, and Ethernet control module 21 the most normal uses stratum on work group and table, in order to support server and high-effect work station access Backbone network, it need be based upon on the MAC module 22 just like Ethernet, by this MAC module 22 to carry out the communication between each group and stratum, cause the transmission of none method to avoid that collision takes place between node and node to transmit, and see through fundamental frequency generator 23, intermediate frequency transducer 24, radio frequency/intermediate frequency transducer 25, band pass filter (BPF) 26, amplifier 27, emission/reception switch 28 and 2.4GHz band pass filter (BPF) 29 ... wait the signal between each circuit unit to handle, and by antenna-switching device 30, first slot type antenna 10 and second slot type antenna 12 are able to wireless mode and receive or launch message.Because the composition framework of each circuit unit of inside of AP is all traditional person, and also non-feature of the present invention, will no longer thin detailed explanation at this.
Receive or when launching, be to switch the processing that an antenna with preferable transmission characteristic wherein receives or launches via antenna switcher 30, wherein, because first slot type antenna 10 and second slot type antenna 12 are to be embedded in the body of radio transmitting device 2 with mutual vertical mode, two antennas thereby produce compensation effect mutually make both aerial radiation field patterns have complementarity, that is, isotropic homogeneous radiation field pattern of tool all in 3d space avoids producing the communication dead angle.
See also shown in Figure 3ly, it is embedded at the stereogram that one in the body of a radio transmitting device changes example in order to the antenna that shows radio transmitting device of the present invention.As shown in the figure, itself and Fig. 1 something in common will repeat no more, only just do not exist together and be illustrated, wherein, this first slot type antenna 10 ' and second slot type antenna 12 ' earth terminal (101 ', 121 ') each base portion (103 ', 123 ') end interconnects, and this second slot type antenna 12 ' base portion 123 ' the other end then extend along lower body 14 madial walls, make this first slot type antenna 10 ' with second slot type antenna 12 ' ground connection prolong roughly to be Jiong shape ground structure 124, thereby the frequency range of increase antenna, and enlarge the equivalent cross-sectional area of antenna, and promote antenna gain; And, since this Jiong shape ground structure 124 make first slot type antenna 10 ' must with second slot type antenna 12 ' one-body molded in same mould, so need not separately molded and shapedly, thereby save the die sinking cost and be easy to and assemble.
Antenna by radio transmitting device of the present invention, allow present use under the transmission of the Wi-Fi of IEEE802.11b transmission standard computer system or the antenna of AP be hidden in its body, overall appearance is had more outside the cleanliness, and be embedded two antennas with mutual vertical mode, thereby effectively avoid producing the communication dead angle; Moreover, the earth terminal of two vertical each other antennas is connected and prolonged to form a Jiong shape ground structure, more can improve antenna gain and reduce the die sinking cost simultaneously.
The above only is preferred embodiment of the present invention, be not in order to limit the scope of essence technology contents of the present invention, wherein, do not limit second slot type antenna 12 only ' the base portion 123 ' prolongation of earth terminal, also can prolong first slot type antenna 10 ' earth terminal base portion 103 ', perhaps both all can prolong simultaneously, and, except that two base portions (103 ', 123 ') extend to form the above-mentioned Jiong shape ground structure, also extensible is annular or shape ground structure; In addition, not only can be applicable to the preceding employed frequency of IEEE802.11b or Bluetooth transmission standard mesh is under the 2.4GHz to 2.4835GHz, also can extend to other frequency band, be under the 5.15GHz to 5.875GHz as the next generation's the employed frequency of IEEE802.11a transmission standard.Essence technology contents of the present invention is broadly to be defined in the following claim, any technology entity or method that other people are finished, if defined identical with following claim, or be the change of same equivalence, all will be regarded as being covered by among this claim.
The component symbol explanation
1 body
2 radio transmitting devices
10,10 ' the first slot type antennas
11,13 coaxial cables
12,12 ' the second slot type antennas
14 lower bodies
20 RJ45 interfaces
21 Ethernet control modules
22 MAC module
23 fundamental frequency generators
24 intermediate frequency transducers
25 radio frequency/intermediate frequency transducers
26 filters
27 amplifiers
28 transmission/receptions
29 2.4GHz filters
30 antenna switcher
100,100 ', 120,120 ' distributing point
101,101 ', 121,121 ' earth terminal
102,102 ', 122,122 ' fluting
103,103 ', 123,123 ' base portion
140 accommodating grooves
141 stators
142 power input holes
143 information transmission line joints
144 circuit boards
Claims (44)
1. radio transmitting device, its wireless transmission are to see through an antenna that is embedded in this radio transmitting device body to reach, and this antenna includes:
One first slot type antenna changes to import in this radio transmitting device to be radiated to electromagnetic wave aerial and that will transmit in the air in order to be electromagnetic wave with the handled signal transition of this radio transmitting device; And,
One second slot type antenna changes to import in this radio transmitting device to be radiated to electromagnetic wave aerial and that will transmit in the air in order to be electromagnetic wave with the handled signal transition of this radio transmitting device;
Wherein, this first and second slot type antenna is to be provided with in the mode of reaching aerial radiation field pattern complementary effect.
2. radio transmitting device as claimed in claim 1, wherein, this first slot type antenna and second slot type antenna are vertical.
3. radio transmitting device as claimed in claim 1, wherein, this first slot type antenna and second slot type antenna have distributing point and the earth terminal that is connected in order to the circuit of transmitting/receiving signal with this radio transmitting device.
4. radio transmitting device as claimed in claim 3, wherein, this circuit is a coaxial cable line.
5. radio transmitting device as claimed in claim 3, wherein, each base portion one end of the earth terminal of this first slot type antenna and second slot type antenna interconnects.
6. radio transmitting device as claimed in claim 5, wherein, the base portion other end of this first slot type antenna extends towards body inner wall.
7. radio transmitting device as claimed in claim 5, wherein, the base portion other end of this second slot type antenna extends towards body inner wall.
8. as the radio transmitting device of claim 6 or 7, wherein, the base portion after the extension forms an annular ground structure.
9. as the radio transmitting device of claim 6 or 7, wherein, the base portion after the extension roughly is a Jiong shape ground structure.
10. as the radio transmitting device of claim 6 or 7, wherein, the base portion after the extension roughly is a shape ground structure.
11. radio transmitting device as claimed in claim 1, wherein, this first slot type antenna and second slot type antenna are to be provided with for the separation mode.
12. radio transmitting device as claimed in claim 1, wherein, this radio transmitting device is to be a base station (Access Point).
13. an antenna is to be embedded in the body of computer apparatus, this antenna includes:
One first slot type antenna changes to import in this computer apparatus to be radiated to electromagnetic wave aerial and that will transmit in the air in order to be electromagnetic wave with the handled signal transition of computer apparatus; And,
One second slot type antenna changes to import in this computer apparatus to be radiated to electromagnetic wave aerial and that will transmit in the air in order to be electromagnetic wave with the handled signal transition of computer apparatus;
Wherein, this first and second slot type antenna is to be provided with in the mode of reaching aerial radiation field pattern complementary effect.
14. as the radio transmitting device of claim 13, wherein, this first slot type antenna and second slot type antenna are vertical.
15. as the antenna of claim 13, wherein, this first slot type antenna and second slot type antenna have distributing point and the earth terminal that is connected in order to the circuit of transmitting/receiving signal with this computer apparatus.
16. as the antenna of claim 15, wherein, this circuit is a coaxial cable line.
17. as the antenna of claim 15, wherein, each base portion one end of the earth terminal of this first slot type antenna and second slot type antenna interconnects.
18. as the antenna of claim 17, wherein, the base portion other end of this first slot type antenna extends towards body inner wall.
19. as the antenna of claim 17, wherein, the base portion other end of this second slot type antenna extends towards body inner wall.
20. as the antenna of claim 18 or 19, wherein, the base portion after the extension roughly is an annular ground structure.
21. as the antenna of claim 18 or 19, wherein, the base portion after the extension roughly is a Jiong shape ground structure.
22. as the antenna of claim 18 or 19, wherein, the base portion after the extension roughly is a shape ground structure.
23. as the antenna of claim 13, wherein, this first slot type antenna and second slot type antenna are to be provided with for the separation mode.
24. as the antenna of claim 13, wherein, this computer apparatus is the desktop PC.
25. as the antenna of claim 13, wherein, this computer apparatus is a subnotebook PC.
26. as the antenna of claim 1 or 13, wherein, this device is to be applied under the transmission standard of IEEE802.11b.
27. as the antenna of claim 1 or 13, wherein, this device is to be applied under the transmission standard of bluetooth (Blue Tooth).
28. a radio transmitting device, its user's computer apparatus of handling for a plurality of tool wireless transmission is bridged in the Ethernet (Ethernet), resource in the networking is integrated shared, and it comprises:
One coffret, it is linked to Ethernet, this radio transmitting device of Network Recognition is the transmission end address at a local networking in order to be provided with too, and see through this coffret be able to the data transmission in the Ethernet to user's computer apparatus or with the data transmission in user's computer apparatus to Ethernet;
One Ethernet control module, it is coupled to this coffret, in order to the communication protocol between the control area net road;
One medium access control (Media Access Control, MAC) module, it is coupled to this Ethernet control module, in order to store the address on the local networking, for the destination-address that source address and data receive that sends of Ethernet identification data, allow user's computer apparatus be able in Ethernet reception/transmission data smoothly;
One reception/sending module, it is coupled to this MAC module, in order to the data that receives and be about to send is handled, is subjected to external disturbance or signal attenuation to prevent this data in wireless transport process;
One first slot type antenna, it is embedded in the body of radio transmitting device, in order to will receive/to be electromagnetic wave change to import in this reception/sending module to be radiated to electromagnetic wave aerial and that will transmit in the air the handled signal transition of sending module; And,
One second slot type antenna, it is embedded in the body of radio transmitting device, in order to will receive/to be electromagnetic wave change to import in this reception/sending module to be radiated to electromagnetic wave aerial and that will transmit in the air the handled signal transition of sending module;
Wherein, this first and second slot type antenna is to be provided with in the mode of reaching aerial radiation field pattern complementary effect.
29. as the radio transmitting device of claim 28, wherein, this first slot type antenna is vertical with second slot type antenna.
30. as the radio transmitting device of claim 28, wherein, this first slot type antenna and second slot type antenna have distributing point and the earth terminal that is connected in order to the circuit of transmitting/receiving signal with this radio transmitting device.
31. as the radio transmitting device of claim 30, wherein, this circuit is a coaxial cable line.
32. as the radio transmitting device of claim 30, wherein, each base portion one end of the earth terminal of this first slot type antenna and second slot type antenna interconnects.
33. as the radio transmitting device of claim 32, wherein, the base portion other end of this first slot type antenna extends towards body inner wall.
34. as the radio transmitting device of claim 32, wherein, the base portion other end of this second slot type antenna extends towards body inner wall.
35. as the radio transmitting device of claim 33 or 34, wherein, the base portion after the extension roughly is an annular ground structure.
36. as the radio transmitting device of claim 33 or 34, wherein, the base portion after the extension roughly is a Jiong shape ground structure.
37. as the radio transmitting device of claim 33 or 34, wherein, the base portion after the extension roughly is a shape ground structure.
38. as the radio transmitting device of claim 28, wherein, this first slot type antenna and second slot type antenna are to be provided with for the separation mode.
39. as the radio transmitting device of claim 28, wherein, this radio transmitting device is to be a base station.
40. as the radio transmitting device of claim 28, wherein, this radio transmitting device is to be applied under the transmission standard of IEEE802.11b.
41. as the radio transmitting device of claim 28, wherein, this radio transmitting device is to be applied under the transmission standard of bluetooth (Blue Tooth).
42. as the radio transmitting device of claim 28, wherein, this coffret is a RJ45 interface.
43. as the antenna of claim 28, wherein, this computer apparatus is to be the desktop PC.
44. as the antenna of claim 28, wherein, this computer apparatus is to be subnotebook PC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011211822A CN1194445C (en) | 2001-06-13 | 2001-06-13 | Antenna for radio transmission device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011211822A CN1194445C (en) | 2001-06-13 | 2001-06-13 | Antenna for radio transmission device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1391311A true CN1391311A (en) | 2003-01-15 |
| CN1194445C CN1194445C (en) | 2005-03-23 |
Family
ID=4664421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011211822A Expired - Lifetime CN1194445C (en) | 2001-06-13 | 2001-06-13 | Antenna for radio transmission device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1194445C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100470423C (en) * | 2005-12-15 | 2009-03-18 | 仁安资讯科技股份有限公司 | Wireless transmitting system controlled by computer value |
| CN108494644A (en) * | 2018-05-11 | 2018-09-04 | 大连金盛义电子科技有限公司 | A kind of wireless access transmitting device and system based on ether web frame |
-
2001
- 2001-06-13 CN CNB011211822A patent/CN1194445C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100470423C (en) * | 2005-12-15 | 2009-03-18 | 仁安资讯科技股份有限公司 | Wireless transmitting system controlled by computer value |
| CN108494644A (en) * | 2018-05-11 | 2018-09-04 | 大连金盛义电子科技有限公司 | A kind of wireless access transmitting device and system based on ether web frame |
| CN108494644B (en) * | 2018-05-11 | 2023-07-11 | 大连金盛义电子科技有限公司 | Wireless access transmission device and system based on Ethernet structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1194445C (en) | 2005-03-23 |
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Granted publication date: 20050323 |