CN1960057B - Device for adjusting frequency of antenna - Google Patents
Device for adjusting frequency of antenna Download PDFInfo
- Publication number
- CN1960057B CN1960057B CN2005100951934A CN200510095193A CN1960057B CN 1960057 B CN1960057 B CN 1960057B CN 2005100951934 A CN2005100951934 A CN 2005100951934A CN 200510095193 A CN200510095193 A CN 200510095193A CN 1960057 B CN1960057 B CN 1960057B
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- antenna
- radiation
- department
- frequency
- regulate
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Abstract
Being able to adjust operation frequency for plane inverse F type antenna or I type antenna, the disclosed antenna frequency adjustment device includes a slider, and plastic retention piece. The slider is clung to one side at end of radiation part of antenna to be adjusted. The plastic retention piece is fixed at installation part of antenna. The slider possesses contact part and control part. The contact part is contacted to one side at end of radiation part of antenna closely, and the control part is accommodated inside open slot of the retention piece partially. Manipulating the control part to move along the open slot can change size of radiation part of antenna covered by the contact part of the slider so as to reach purpose for adjusting antenna frequency. The adjustment device can adjust frequency of antenna to be adjusted to optimum working frequency easily.
Description
[technical field that the present invention belongs to]
The invention relates to a kind of device for adjusting frequency of antenna, refer to especially a kind of be located at planar inverted " F " type antenna (Planar Inverted-F Antenna, PIFA) or the device for adjusting frequency of antenna on the I shape antenna.
[background technology]
Along with the high speed development of mobile communication, people more and more wish to be equipped with a notebook computer or other portable terminal device just can insert Internet whenever and wherever possible.Satisfied people's this demand to a certain extent based on the wireless-access mode of GPRS (General Packer RadioService, GPRS) and WLAN (Wireless Local Area Network, WLAN (wireless local area network)).GPRS is the wireless network that a wide area covers, and its message transmission rate is probably at 30Kbps-50Kbps, and WLAN is the wireless network that a local covers, and its message transmission rate can reach 11Mbps (based on the 802.11b technology).People cooperate portable terminal devices such as notebook computer by selecting the different radio network interface card, insert Internet whenever and wherever possible.Because the WLAN message transmission rate can reach 11Mbps, so (hotel, airport, coffee-house, commercial center, conference and exhibition center) provides public WLAN high-speed data service at some hot zones, automatically switch after leaving hot zones, connect by maintenance networks such as GPRS.
At present, wireless local area is mostly based on bluetooth (Bluetooth) technical standard or IEEE 802.11 series standards.The working band of antenna falls within 2.4GHz in the Bluetooth technology standard, and the working band of antenna falls within 2.4GHz and 5GHz respectively in the IEEE802.11 series technique standard.And the GPRS working band falls within 900MHz, 1800MHz and 1900MHz, and therefore, the antenna in the notebook computer is the multifrequency antenna that is applied to above-mentioned frequency band mostly at present.
(Planar Inverted-F Antenna PIFA) is a kind of small size antenna that is usually used in mobile communication terminal to planar inverted " F " type antenna.Its characteristics are that size is little, and are in light weight, can effectively reduce occupation space and manufacturing cost, and impedance matching is good, is easy to realize double frequency or multifrequency.It another very important characteristic is exactly that it has horizontal polarization and perpendicular polarization concurrently, is applicable to the place that electromagnetic environment is comparatively complicated.
As everyone knows, the length of antenna radiation frequencies and Department of Radiation is inversely proportional to, and the designer will determine the length of this aerial radiation portion earlier by this operating frequency when design will work in the antenna of characteristic frequency.Yet, the length of the Department of Radiation of planar inverted " F " the type antenna from the harsh output of production line generally all has some deviations, and it is generally long than the needed length of real work, thereby the radiation frequency that makes antenna produces some deviations, can not reach best operating frequency, influence the service behaviour of planar inverted " F " type antenna to a certain extent.Generally before antenna being fit into notebook computer or other portable terminal device, to prune, make its Department of Radiation have suitable length, thereby reach best radiation frequency antenna.And planar inverted " F " type operating frequency of antenna is also used notebook computer or other portable terminal device inner space and the structure influence of this planar inverted " F " type antenna, thereby, be installed in other notebook computer or other portable terminal device for a kind of notebook computer or designed planar inverted " F " the type antenna of other portable terminal device specially, its operating frequency might produce deviation, and can not reach frequency optimum traffic, at this moment also need antenna is pruned, make it reach best operating frequency.Yet, above-mentioned by pruning make the Department of Radiation of antenna reach the mode of demand not only time-consuming, take a lot of work, efficient is low, and very possible the pruning excessively makes the too small waste product that forms of Department of Radiation length of antenna on the contrary.
Consider above-mentioned drawback, necessary design is a kind of can regulate the device of above-mentioned antenna frequencies.
[summary of the invention]
The object of the present invention is to provide a kind of device for adjusting frequency of antenna, its dielectric constant by adjusting antenna surrounding medium is realized the adjusting to operating frequency of antenna.
For achieving the above object, device for adjusting frequency of antenna of the present invention is reached by the following technical programs:
A kind of device for adjusting frequency of antenna, be used to regulate and wait that the frequency of regulating antenna makes it reach required frequency optimum traffic, it has is located at the movable sliding block on the Department of Radiation of waiting to regulate antenna and is fixed in plastics retaining piece on the antenna, slide block has the contact site that is attached on Department of Radiation one side of waiting to regulate antenna, and slide block is installed on the retaining piece.
A kind of device for adjusting frequency of antenna is used to regulate and waits that the frequency of regulating antenna makes it reach required frequency optimum traffic, and it has the movable sliding block that is sheathed on the Department of Radiation of waiting to regulate antenna and closely contacts with Department of Radiation.
Compared with prior art, the antenna advantage that the present invention makes is: by the size of adjusting slider contact site cover antenna Department of Radiation, can make antenna reach frequency optimum traffic easily.
[description of drawings]
Fig. 1 is antenna regulating device first execution mode of the present invention and the stereogram of waiting to regulate antenna thereof.
Fig. 2 is the stereogram of another angle of Fig. 1.
Fig. 3 is a stereogram of waiting to regulate antenna among the present invention.
Fig. 4 is antenna regulating device second execution mode of the present invention and the stereogram of waiting to regulate antenna thereof.
[embodiment]
Fig. 1 is to first execution mode that Figure 3 shows that antenna regulating device 20 of the present invention, in the present embodiment, the antenna for the treatment of regulating frequency is " F " type antenna 10 (please in conjunction with shown in Figure 3) of a kind of double frequency plane, and it comprises Department of Radiation 11, grounding parts 13, connects connecting portion 12, feeder line weld part 4 and the installation portion 15 of Department of Radiation 11 and grounding parts 13.Department of Radiation 11 comprises first Department of Radiation 110 and second Department of Radiation 112.Grounding parts 13 comprises and is positioned at conplane first grounding parts 131 with Department of Radiation 11 and perpendicular to second grounding parts 132 of first grounding parts 131.Connecting portion 12 roughly is down T-shape, and feeder line weld part 4 extends and forms from connecting portion 12 vertical bendings, and the free terminal 121 of connecting portion 12 also is a Department of Radiation, and itself and first Department of Radiation 110 constitute high-frequency radiation part jointly.Two installation portions 15 extend from grounding parts 13 two ends respectively, are respectively equipped with on it in order to convenient first perforate 151 that planar inverted " F " type antenna 10 is installed on notebook computer or other portable terminal device (not shown) to reach in order to conveniently antenna regulating device 20 is fixed in second perforate 152 on planar inverted " F " the type antenna 10.
Device for adjusting frequency of antenna 20 of the present invention comprises the slide block 30 of being close to first Department of Radiation 110 and second Department of Radiation, 112 two ends, one side and is fixed on the installation portion 15 and is held on plastics retaining piece 21 on second grounding parts 132 of grounding parts 13 with bolt (not label).Slide block 30 comprise the contact site 300 that contacts with first Department of Radiation 110 and second Department of Radiation 112 respectively and with contact site 300 integrated control parts 301.Control part 301 has the extension 302 that extends outward with handled easily moving slider 30 and reaches the fin (not shown) that protrudes out respectively from control part 301 upper and lower both sides.Plastics retaining piece 21 corresponding flats Department of Radiation 11 positions of " F " type antenna 10 offer lengthwise fluting 210.Fluting 210 both sides along longitudinally offer a slit 220 respectively.The fin of above-mentioned control part 201 is located in respectively in the slit 220.By the extension 302 of operation control part 301, can be along the longitudinally moving slider 30 at fluting 210 places.
Two slide blocks 30 are close to first Department of Radiation 110 and second Department of Radiation, 112 terminal sides, because the dielectric constant minimum of air dielectric, and the dielectric constant of general plastic material is all greater than the dielectric constant of air, thereby increased the dielectric constant of the radiation medium of planar inverted " F " type antenna 10.Dielectric constant increases the operating frequency that makes planar inverted " F " type antenna 10 and increases, thereby has changed original operating frequency of antenna.Because general planar inverted " F " type antenna 10 deviations of producing are at several millimeters (mm), therefore, the minor adjustments by slide block 30 just can make planar inverted " F " type antenna 10 reach the operating frequency of the best.
Antenna in the present embodiment also can be any kind of planar inverted " F " type antenna or " worker " font antenna.
Figure 4 shows that second execution mode of antenna regulating device 20 ' of the present invention.In the present embodiment, the antenna for the treatment of regulating frequency is that the double frequency plane identical with first execution mode falls " F " type antenna 10 ', and its structure repeats no more herein.Device for adjusting frequency of antenna 20 ' of the present invention is a plastics tetrahedron rectangular housing, and the two ends that its longitudinally is relative have openend 200 '.The Department of Radiation end of planar inverted " F " type antenna 10 ' pierces into rectangular housing from openend 200 ', thereby makes antenna regulating device 20 ' be sheathed on the Department of Radiation end of planar inverted " F " type antenna 10 '.The size of Department of Radiation of " F " type antenna 10 ' is fallen to change plastics rectangular housing overlay planes in position by mobile rectangular housing, thereby reaches the purpose of regulating antenna frequencies.
Present embodiment can reach and the identical effect of first execution mode, also can increase as the plastics retaining piece 21 in first execution mode to present embodiment, and device for adjusting frequency of antenna 20 ' one side of present embodiment is extended a control part 201, thereby make more accurate conveniently the reaching of the device for adjusting frequency of antenna 20 ' of present embodiment regulate and can prevent better that device for adjusting frequency of antenna 20 ' from coming off from Department of Radiation.
Claims (7)
1. device for adjusting frequency of antenna, be used to regulate and wait that the frequency of regulating antenna makes it reach required frequency optimum traffic, it is characterized in that: device for adjusting frequency of antenna has slide block and plastics retaining piece, described slide block is to be located on the Department of Radiation of waiting to regulate antenna and removable, it has the contact site that is attached on Department of Radiation one side of waiting to regulate antenna, described slide block has the control part that makes things convenient for moving slider, and described control part is formed with two fins; Described plastics retaining piece is fixed in to be waited to regulate on the antenna, and offers a fluting, and described slide block is to be installed on described retaining piece, be contained in the fluting in and the fluting in slidably, the fluting in longitudinal edge on offer two grooves of accommodating described fin.
2. device for adjusting frequency of antenna as claimed in claim 1 is characterized in that: described control part comprises main part and extension, and described fin extends and is symmetrical arranged for autonomous body respectively.
3. device for adjusting frequency of antenna as claimed in claim 2 is characterized in that: described plastics retaining piece is to be fixed in to wait to regulate on the installation portion of antenna.
4. device for adjusting frequency of antenna as claimed in claim 1 is characterized in that: antenna described to be regulated is planar inverted F-shape antenna or I shape antenna.
5. device for adjusting frequency of antenna, be used to regulate and wait that the frequency of regulating antenna makes it reach required frequency optimum traffic, it is characterized in that: device for adjusting frequency of antenna has the movable sliding block that is sheathed on the Department of Radiation of waiting to regulate antenna and closely contacts with Department of Radiation, described Department of Radiation comprises first Department of Radiation and second Department of Radiation, slide block is close to first Department of Radiation and the terminal side of second Department of Radiation, described slide block has contact site, and described contact site is the plastic casing with openend that is sheathed on the Department of Radiation of waiting to regulate antenna.
6. device for adjusting frequency of antenna as claimed in claim 5 is characterized in that: described slide block also has the control part that makes things convenient for moving slider.
7. device for adjusting frequency of antenna as claimed in claim 6 is characterized in that: device for adjusting frequency of antenna also has a plastics retaining piece, and described control part partly is located in this plastics retaining piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100951934A CN1960057B (en) | 2005-10-31 | 2005-10-31 | Device for adjusting frequency of antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2005100951934A CN1960057B (en) | 2005-10-31 | 2005-10-31 | Device for adjusting frequency of antenna |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1960057A CN1960057A (en) | 2007-05-09 |
| CN1960057B true CN1960057B (en) | 2011-06-15 |
Family
ID=38071612
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2005100951934A Expired - Fee Related CN1960057B (en) | 2005-10-31 | 2005-10-31 | Device for adjusting frequency of antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1960057B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101901964A (en) * | 2009-05-25 | 2010-12-01 | 神讯电脑(昆山)有限公司 | Antenna structure |
| CN103682636B (en) * | 2012-08-30 | 2019-02-12 | 深圳富泰宏精密工业有限公司 | Wireless communication device |
| CN103682637B (en) * | 2012-09-12 | 2018-05-11 | 深圳富泰宏精密工业有限公司 | Radio communication device |
| CN104183905B (en) * | 2013-05-23 | 2019-05-14 | 深圳富泰宏精密工业有限公司 | Wireless communication device |
| CN103701535B (en) * | 2013-12-12 | 2019-02-01 | 安弗施无线射频系统（上海）有限公司 | Adjust the method and device of intelligent antenna calibration plate |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490727A (en) * | 1979-10-18 | 1984-12-25 | Mobile Mark, Inc. | Adjustable top loaded antenna |
| CN1610989A (en) * | 2003-02-14 | 2005-04-27 | 株式会社东芝 | Electronic Equipment |
-
2005
- 2005-10-31 CN CN2005100951934A patent/CN1960057B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4490727A (en) * | 1979-10-18 | 1984-12-25 | Mobile Mark, Inc. | Adjustable top loaded antenna |
| CN1610989A (en) * | 2003-02-14 | 2005-04-27 | 株式会社东芝 | Electronic Equipment |
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| Publication number | Publication date |
|---|---|
| CN1960057A (en) | 2007-05-09 |
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Granted publication date: 20110615 Termination date: 20151031 |
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