CN1953272B - Multiple frequency band antenna - Google Patents
Multiple frequency band antenna Download PDFInfo
- Publication number
- CN1953272B CN1953272B CN2005101182436A CN200510118243A CN1953272B CN 1953272 B CN1953272 B CN 1953272B CN 2005101182436 A CN2005101182436 A CN 2005101182436A CN 200510118243 A CN200510118243 A CN 200510118243A CN 1953272 B CN1953272 B CN 1953272B
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- Prior art keywords
- antenna
- antenna field
- field
- substrate
- extension
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Abstract
The invention relates to a multi-frequency antenna, which comprises a base plate, several antenna areas, and a solid antenna part. Wherein, said several antenna areas are formed on base plate as printed circuit, while their roots are parallel and they are reversed extent at the extending part of antenna area; the solid antenna part via connecting pole is distanced from base plate to be parallel with base plate.
Description
[technical field]
The present invention is about a kind of multiband aerial, refers to a kind of being arranged on the substrate of special construction of having especially, to receive the antenna of different frequency range signal.
[background technology]
Now, because the consumer increases day by day to the demand of mobile computing, therefore, (Personal Digital Assistant PDA) more and more is subjected to consumer's welcome for the notebook computer of being convenient to carry (Notebook PC), palmtop PC.Simultaneously, be accompanied by the increase of mobile computing demand, the wireless network module that can link the Internet (Internet) whenever and wherever possible also becomes the basic outfit of notebook computer.These wireless network modules as: wireless network interface such as 802.11a, 802.11b, 802.11g are referred to as WiFi (Wireless Fidelity) interface, and the frequency range that it operated is 2.4GHz (802.11b, 802.11g) and 5GHz (802.11a).And in GSM (Global System for MobileTelecommunications) the employed frequency range of mobile telephone system, as 900MHz, 1800MHz, 1900MHz, 2100MHz etc., if in the electric wave overlay area of mobile phone base station, also the frequency range that can utilize the mobile phone operator to be provided is reached the purpose of online.Except the online demand, the universalness of wireless peripheral unit such as Wireless Keyboard, wireless mouse, also make notebook computer often be equipped with can with the wireless communication module of the mutual transmission signal of wireless peripheral unit, as blue bud module (Bluetooth Module), its running frequency range be 2.4GHz.
In sum, the antenna that can receive different frequency range must be equipped with because the user often comprises wireless internet accessing device, wireless peripheral unit etc. to the demand of wireless transmission, therefore on a mobile arithmetic facility, often.In the prior art, on mobile arithmetic facility, as notebook computer, the antenna of various different frequency ranges needs to be provided with respectively.Thus, not only in mechanism, need to reserve a plurality of antenna link positions, and each antenna needs all each other transmission channel that signal is sent to arithmetic processing apparatus in the notebook computer.So not only can increase the manufacturing cost of associated mechanisms, also must use multiple different transmission wire rod to transmit the signal of different antennae module, pursuing in the compact notebook computer designing requirement, can increase the difficult design degree and be difficult to reduce manufacturing cost, also can cause user's inconvenience simultaneously.
[summary of the invention]
Main purpose of the present invention is to provide a kind of multiband aerial, and particularly a kind of being arranged on the substrate has special construction, to receive the antenna of different frequency range signal.
For reaching above-mentioned purpose, a kind of multiband aerial of the present invention, it comprises a substrate, several antenna fields, a three-dimensional antenna portion.These several antenna fields are formed on the substrate in the printed circuit mode, and the root of these some antenna fields is parallel, and extend in the opposite direction in extension each other.This three-dimensional antenna portion is parallel to each other at a distance of a specific range and with this substrate by joint pin and this substrate.
Particularly, one aspect of the present invention provides a kind of multiband aerial, and it comprises substrate, three-dimensional antenna portion, third antenna district and filter; The first surface of this substrate is provided with one first antenna field and one second antenna field in order to receive wireless signal, this first antenna field and second antenna field respectively have a root and an extension, this first antenna field is parallel with the root of second antenna field and stretches out, and this first antenna field and second antenna field extend each other in the opposite direction; This three-dimensional antenna portion and this first antenna field and second antenna field electrically conduct, and are parallel to each other at a distance of a predeterminable range and with this substrate with this substrate; This third antenna district is located at the second surface of this substrate, and this third antenna district has a root and an extension, and the extension in this third antenna district extends towards the extension direction of the extension of this second antenna field; This filter is via a transmission line and this first antenna field and the electric connection of second antenna field, to separate the different frequency range signal that is received.
The present invention also provides a kind of multiband aerial, it comprises substrate, on the first surface of this substrate, be provided with one first antenna field and one second antenna field in order to receive wireless signal, this first antenna field and second antenna field respectively have a root and an extension, this first antenna field is parallel with the root system of second antenna field and stretches out, and this first antenna field and second antenna field extend each other in the opposite direction, one three-dimensional antenna portion, this three-dimensional antenna portion and this first antenna field and second antenna field electrically conduct, and are parallel to each other at a distance of a predeterminable range and with this substrate with this substrate; Second surface at this substrate is provided with the third antenna district, and this third antenna district has a root and an extension, and the extension system in this third antenna district extends towards the extension direction of the extension of this second antenna field.
Multiband aerial of the present invention can receive the signal of different frequency range, and multiband aerial of the present invention not only can effectively reduce the quantity of required antenna when being applied to electronic equipment, and can avoid different antennae that the shortcoming of transmission wire rod out of the ordinary need be set.
[description of drawings]
Fig. 1 is the schematic appearance of multiband aerial of the present invention.
Fig. 2 is the structure schematic diagram of multiband aerial of the present invention.
Fig. 3 connects the schematic diagram of a filter for multiband aerial of the present invention.
Fig. 4 is the structural representation of transmission line.
Fig. 5 is the spectrum analysis result of multiband aerial of the present invention.
[embodiment]
See also Fig. 1, Fig. 1 is the structural representation of multiband aerial 10 of the present invention.Multiband aerial 10 comprises substrate 20, and this substrate 20 can be a printed circuit board (PCB), the antenna field A of metal lining material and antenna field B on it, and this metal material can be copper or other has the satisfactory electrical conductivity metal.This antenna field A and antenna field B respectively have a root and an extension, and antenna field A stretches out by root is parallel each other with antenna field B, and extend in the opposite direction each other in the extension of two antenna fields.Better embodiment of the present invention as shown in Figure 1, this antenna field A is parallel fine strip shape with antenna field B by root and stretches out, fan-shaped gradually to extending in the other direction with circular arc in the antenna field extension, wherein the extension area of the extension area ratio antenna district B of antenna field A wants big, to reach good reception effect.The combination of antenna field A and antenna field B can wherein comprise frequency ranges such as 900MHz-2.4GHz and 5GHz for the wireless signal that receives radio bands such as GSM frequency range, Wi-Fi (Wireless Fidelity) frequency range.
The root of antenna field A and antenna field B is provided with pad zone, for the welding of connecting circuit.The root of antenna field A is provided with a weld pad 60, and the root of antenna field B then is provided with pad zone 50.The weld pad 60 of antenna field A can connect for the circuit of welding transmit antenna signal.The pad zone 50 of antenna field B can connect for the circuit of welding earth terminal.The root of antenna field B also extends to both sides.
Other solid welding has a three-dimensional antenna portion 30 on this multiband aerial 10, and this three-dimensional antenna portion 30 is that metal material is made, has the satisfactory electrical conductivity metal as copper sheet or other, and it has two joint pins 32,34.This joint pin 32 is fixed on the weld pad 60, and another joint pin 34 is fixed on the pad zone 50.This three-dimensional antenna portion 30 keeps the distance (being decided by practical application) of about 1-2 centimetre by joint pin 32,34 and substrate 20 and is parallel to each other with this substrate 20.Three-dimensional antenna portion 30 can cooperate with antenna field A on the substrate 20 and antenna field B to strengthen the reception effect of 900MHz, 1800MHz and 1900MHz in GSM (the Global System for MobileTelecommunications) frequency range, wherein three-dimensional antenna portion 30 extend the reception effect that longer block can be strengthened GSM frequency range 900MHz, the shorter block in the three-dimensional antenna portion 30 then can be strengthened the reception effect of GSM frequency range 1800MHz and 1900MHz.
See also Fig. 2.Figure 2 shows that the structure of this substrate 20.These substrate 20 back side plating have the antenna field C of a metal material, and this metal material can be copper or other has the metal of satisfactory electrical conductivity.The extension of this antenna field C is sector region, and its sector region with the extension of antenna field B is identical and be positioned at the homonymy at the antenna field B back side.Antenna field C and antenna field B electrically conduct, and the root area area occupied of antenna field C is greater than the root area of antenna field B.
See also Fig. 3.The schematic diagram that Fig. 3 is connected with a filter 90 for multiband aerial 10 of the present invention.This filter 90 is reached electric connection via a transmission line 80 and the weld pad 50,60 on antenna field A and the antenna field B.Filter 90 can receive the signal by 10 receptions of multiband aerial, and the signal of the GSM frequency range in the signal with Wi-Fi (Wireless Fidelity) frequency range (the Wi-Fi frequency range is about 2.4GHz) separated, for the application of other signal process device.This transmission line 80 makes weld pad 50 and earth terminal reach electric connection by an earth lead 82 or with direct welding manner in addition.
See also Fig. 4.Fig. 4 is the structural representation of transmission line 80.This transmission line 80 is single core coaxial cable, and it has a Communication signal wire 84, an inner insulating layer 85, a metal stratum reticulare 86 and an exterior insulation coating layer 87.Communication signal wire 84 is in order to signal that transmit antenna received.Inner insulating layer 85 can prevent that Communication signal wire 84 and metal stratum reticulare 86 from producing conducting.Metal stratum reticulare 86 can be in order to connecting ground connection, and the electromagnetic interference that produces of maskable external electromagnetic waves or electromagnetism place, influences the signal that is transmitted on the Communication signal wire 84 to avoid external electromagnetic interference.Exterior insulation coating layer 87 is in order to coat inner wire rod and the function of protection is provided.
See also Fig. 5.Fig. 5 is the reception effect schematic diagram of multiband aerial of the present invention.Fig. 5 shows the experimental result that multiband aerial 10 of the present invention utilizes spectrum analyzer to measure.In general, GSM frequency range and the desired launch loss of Wi-Fi band antenna design specification must be less than-10dB.As shown in the spectrum analysis result of Fig. 5, multiband aerial of the present invention at the launch loss of each main frequency range all less than-10dB, as the loss in the 900MHz frequency range be-18.117dB, the loss of 1800MHz frequency range for-12.046dB, the loss of 1900MHz frequency range for-18.754dB, the loss of 2.4GHz frequency range for-13.758dB, the loss of 2.5GHz frequency range for-12.518dB, in the loss of 4.9GHz frequency range for-19.989dB, be-26.243dB in the loss of 5.85GHz frequency range.So multiband aerial of the present invention all can reach the desired reception effect of design specification in the frequency range of required reception.
The special construction of multiband aerial module of the present invention can be for the wireless signal that receives frequency ranges such as 900MHz-2.4GHz and 5GHz, other utilizes the three-dimensional portion of antenna to strengthen the reception effect of special frequency channel, and the signal by a plurality of different frequency ranges of single transmission channel integration, utilize filter to separate the received signal of different frequency range again.So multiband aerial of the present invention when being applied to electronic equipment, not only can effectively reducing the quantity of required antenna, and can avoid different antennae that the shortcoming of transmission wire rod out of the ordinary need be set.Therefore, multiband aerial of the present invention not only can reduce the degree of difficulty and the manufacturing cost of Antenna Design, and can increase the range of application of this antenna.
Claims (8)
1. multiband aerial, it is characterized in that: it comprises substrate, three-dimensional antenna portion, third antenna district and filter; The first surface of this substrate is provided with one first antenna field and one second antenna field in order to receive wireless signal, this first antenna field and second antenna field respectively have a root and an extension, this first antenna field is parallel with the root of second antenna field and stretches out, and this first antenna field and second antenna field extend each other in the opposite direction; This three-dimensional antenna portion and this first antenna field and second antenna field electrically conduct, and are parallel to each other at a distance of a predeterminable range and with this substrate with this substrate; This third antenna district is located at the second surface of this substrate, and this third antenna district has a root and an extension, and the extension in this third antenna district extends towards the extension direction of the extension of this second antenna field; This filter is via a transmission line and this first antenna field and the electric connection of second antenna field, to separate the different frequency range signal that is received.
2. multiband aerial as claimed in claim 1 is characterized in that: this first antenna field, second antenna field and third antenna district are formed on this substrate in the printed circuit mode.
3. multiband aerial as claimed in claim 2 is characterized in that: this second antenna field and third antenna district and an earth terminal electrically conduct.
4. multiband aerial as claimed in claim 1 is characterized in that: this three-dimensional antenna portion is the copper sheet with a long block and a short block, and this long block and short block are respectively in order to strengthen the reception of different frequency range.
5. multiband aerial as claimed in claim 1 is characterized in that: the signal of separable GSM frequency range of this filter and Wi-Fi frequency range.
6. a multiband aerial, it is characterized in that: it comprises substrate, on the first surface of this substrate, be provided with one first antenna field and one second antenna field in order to receive wireless signal, this first antenna field and second antenna field respectively have a root and an extension, this first antenna field is parallel with the root system of second antenna field and stretches out, and this first antenna field and second antenna field extend each other in the opposite direction, one three-dimensional antenna portion, this three-dimensional antenna portion and this first antenna field and second antenna field electrically conduct, and are parallel to each other at a distance of a predeterminable range and with this substrate with this substrate; Second surface at this substrate is provided with the third antenna district, and this third antenna district has a root and an extension, and the extension system in this third antenna district extends towards the extension direction of the extension of this second antenna field.
7. multiband aerial as claimed in claim 6 is characterized in that: this first antenna field, second antenna field and third antenna district are formed on this substrate in the printed circuit mode.
8. multiband aerial as claimed in claim 7 is characterized in that: this second antenna field and third antenna district and an earth terminal electrically conduct.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101182436A CN1953272B (en) | 2005-10-21 | 2005-10-21 | Multiple frequency band antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005101182436A CN1953272B (en) | 2005-10-21 | 2005-10-21 | Multiple frequency band antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1953272A CN1953272A (en) | 2007-04-25 |
| CN1953272B true CN1953272B (en) | 2010-12-01 |
Family
ID=38059454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005101182436A Expired - Fee Related CN1953272B (en) | 2005-10-21 | 2005-10-21 | Multiple frequency band antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1953272B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380721A (en) * | 2001-04-10 | 2002-11-20 | 株式会社村田制作所 | Antenna device |
| CN1492538A (en) * | 2002-08-30 | 2004-04-28 | �ƶ��������LK����˾ | Adjustable plane antenna |
| CN1551411A (en) * | 2003-05-14 | 2004-12-01 | ��Ѷ�о�����˾ | Antenna with multiple-band patch and slot structures |
-
2005
- 2005-10-21 CN CN2005101182436A patent/CN1953272B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1380721A (en) * | 2001-04-10 | 2002-11-20 | 株式会社村田制作所 | Antenna device |
| CN1492538A (en) * | 2002-08-30 | 2004-04-28 | �ƶ��������LK����˾ | Adjustable plane antenna |
| CN1551411A (en) * | 2003-05-14 | 2004-12-01 | ��Ѷ�о�����˾ | Antenna with multiple-band patch and slot structures |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1953272A (en) | 2007-04-25 |
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| C10 | Entry into substantive examination | ||
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Granted publication date: 20101201 Termination date: 20171021 |