CN101848013B - Control module chassis integrated slot antenna - Google Patents
Control module chassis integrated slot antenna Download PDFInfo
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- CN101848013B CN101848013B CN 201010176845 CN201010176845A CN101848013B CN 101848013 B CN101848013 B CN 101848013B CN 201010176845 CN201010176845 CN 201010176845 CN 201010176845 A CN201010176845 A CN 201010176845A CN 101848013 B CN101848013 B CN 101848013B
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Abstract
A control module has a conductive metal chassis with a chassis body and a chassis lid. A non-conductive opening is formed within the chassis body and a tab extends from the chassis lid engaging edges of the non-conductive opening to create a rectangularly-shaped non-conductive aperture with a longitudinal axis having a predetermined length for forming a slot antenna structure. The predetermined length is designed to communicate with a specific communications frequency. The slot antenna structure is signally interconnected to a transceiver housed within the chassis.
Description
The cross reference of related application
The application requires the U.S. Provisional Application No.60/163 of application on March 25th, 2009, and 385 priority is introduced this application by reference here.
Technical field
The application relates to the short-distance wireless communication in the vehicle.
Background technology
The explanation of this part only provides and relates to background technical information of the present invention and may not consist of prior art.
The vehicle-mounted control module of land vehicle can be controlled vehicle operating, comprises, and engine for example, speed changer, power management, the chassis, braking turns to, and other system.In addition, a plurality of available information and amusement (Infotainment) service can be arranged, for example comprise, AM/FM broadcasting, portable music player, cell phone, GPS navigation, satellite broadcasting, remote keyless enters, and remote vehicle starts.Control module spatially is preferably located near the functional area of their control so that obtain the wiring harness length of induction installation and actuator and minimize.Thereby engine control module preferably is placed in the enging cabin or vicinity, and the Infotainment module is placed in the main cabin.Yet along with feature is added in the limited pack environment, vehicle space utilizes problem to become more outstanding.Wiring harness route and availability also limited control module be placed to vehicle in acceptable some position of other side.
Control module may need to communicate with one or more other control modules of vehicle.Known communication means comprises cable LAN, and this local area network (LAN) has shared communication bus.Radio communication also is possible.In addition, portable wireless device and other application can be joined with the user's interface device of vehicle-mounted control module and vehicle.For example, be equipped with the cell phone of wireless communication system can utilize vehicle speakers and microphone to start hands-free calling.The portable audio music playing device can utilize embedded audio/visible system reset music and other audio frequency and/or video file.
The wireless communication protocol that is used for communicating by letter between the control module device comprises IEEE802.15.1 and IEEE802.11 wireless protocols.ISM2.4GHZ short range radio frequency bandwidth described IEEE802.15.1 wireless communication protocol utilization safety, unauthorized.The application of described IEEE802.15.1 wireless communication protocol is beneficial to short distance (1 to 10 meter), the low power wireless communication that uses low-cost transceiver.Described IEEE802.11 wireless communication protocol also utilizes safe, unauthorized ISM2.4GHZ short range radio frequency bandwidth, the power consumption that this bandwidth has longer range (32-95 rice) and increases.
Radio communication need to be utilized the antenna that is connected on the R-T unit.Thereby each utilizes the control module of radio communication need to be connected to antenna on the local transceiver device.The design of antenna is for reaching effective range and signal throughput is most important.Antenna design criteria comprises antenna pattern, size and length, and this antenna pattern, size and length are adjusted for the impact of communication wavelengths and adjacent ambient, and described environment comprises metal and dielectric material, and this dielectric material comprises ground level.The performance of antenna and operating characteristic comprise gain, radiation pattern, polarization, radiation resistance and input impedance.
A kind of method of designing antenna is to set up the electric resonance structure.When the resonance frequency electricity excites, resonant structure " leakage " energy, described energy will be away from this structure radiation.For example, the half-wave length resonant structure is set up by means of the antenna length of approximate half-wave length, and this half-wave length is half of the wavelength of expection radio frequency (RF).
Different antenna structures also is proposed for vehicle-mounted short-distance wireless communication, comprises exterior antenna and the antenna that forms by depositing electrically conductive film on printed circuit board (PCB), band, dielectric material or wire.Permit in the packaging space for antenna can be packed into, will damage one or more antenna performance characteristics.
Summary of the invention
Control module has the conducting metal chassis, and this chassis has chassis body and chassis lid.Non-conductive opening is formed in the chassis body, and tab extends from chassis lid, thereby described tab and non-conductive opening edge join are set up the nonconducting hole of rectangle, and this hole has longitudinal axis, and this longitudinal axis has the predetermined length that is used to form the slot antenna structure.This predetermined length is designed to apparatus body communication frequency and communicates.Slot antenna structure and the transceiver signal ground interconnection that is contained in the chassis.
Scheme 1: a kind of control module comprises:
The conducting metal chassis, described conducting metal chassis comprises chassis body and chassis lid;
Non-conductive opening is positioned at chassis body;
Tab, this tab extends from chassis lid, described tab and non-conductive opening edge join, thereby set up the nonconducting hole of rectangle, this hole has longitudinal axis, this longitudinal axis has the predetermined length that is used to form the slot antenna structure, and described predetermined length is to be designed to the length that apparatus body communication frequency communicates; And
Described slot antenna structure and the transceiver signal ground interconnection that is contained in the chassis.
Scheme 2: the control module in the scheme 1, the longitudinal axis in wherein said hole is horizontal orientation with respect to the tray bottom of chassis body.
Scheme 3: the control module in the scheme 1, the longitudinal axis in wherein said hole is vertical orientation with respect to the tray bottom of chassis body.
Scheme 4: the control module in the scheme 1, wherein, the predetermined length of revising described longitudinal axis can be set up the running frequency of slot antenna structure.
Scheme 5: the control module in the scheme 1, wherein, the predetermined length of described longitudinal axis equals the half-wavelength of running frequency.
Scheme 6: the control module in the scheme 1, wherein, the predetermined length of described longitudinal axis equals 1/4 wavelength of running frequency.
Scheme 7: the control module in the scheme 1, wherein, environmental sealing is filled to form with non-conductive material in described hole.
Scheme 8: the control module in the scheme 1, wherein, thereby the omnidirectional signal that described longitudinal axis is directed to provide vertical covers the position that approaches away from another transceiver of described control module.
Scheme 9: the control module in the scheme 1, wherein, the hole that interconnects with transceiver signal ground comprises feeding a little of contiguous described hole.
Scheme 10: the control module of scheme 9, wherein, described hole comprises adjustable impedance, this impedance is adjusted apart from a distance of feeding of the longitudinal axis center line of slot antenna structure by adjusting.
Scheme 11, the control module in the scheme 1, wherein, the slot antenna structure is by interconnection device and transceiver interconnection.
Scheme 12: the control module in the scheme 11, wherein, described interconnection device comprises the electricity structure of feeding.
Scheme 13: the control module in the scheme 11, wherein, described interconnection device comprises the electromagnetic coupler that joins on the coupling mechanism.
Scheme 14: the control module in the scheme 13, wherein the electromagnetic field in the electromagnetic coupler aligns with the longitudinal axis in described hole.
Scheme 15: the control module in the scheme 11, wherein, described interconnection device comprises wave conductor.
Scheme 16: a kind of control module comprises:
The conducting metal chassis;
The slot antenna structure, described slot antenna structure comprises the non-conductive hole that is arranged in the conducting metal chassis, described hole limits by the opening in the metal chassis;
Described hole has rectangular shape, and with the longitudinal axis with predetermined length, this predetermined length is designed to communicate with communication frequency; With
Described hole signal ground is connected to the transceiver that is contained in the control module.
Scheme 17: the control module in the scheme 16, the predetermined length of wherein said longitudinal axis can enough wireless communication protocol IEEE802.15.1 communication.
Scheme 18: the control module in the scheme 16, the predetermined length of wherein said longitudinal axis can enough wireless communication protocol IEEE802.11 communication.
Scheme 19: a kind of control module comprises:
Chassis body, this chassis body are made of conducting metal and comprise that non-conductive opening, this opening comprise bottom margin part and contiguous lateral edge portions;
Chassis lid, this chassis lid is made of conducting metal and comprises tab, this tab has the marginal portion, and when chassis lid is assemblied on the chassis body, thereby this tab is positioned at the bottom margin part of the contiguous chassis body in this marginal portion of non-conductive opening of chassis body;
The hole is formed by the bottom margin part of chassis body, the lateral edge portions of vicinity and the marginal portion of tab, and this hole has the longitudinal axis of predetermined length, and this predetermined length is corresponding to the running frequency of the wireless communication protocol that is associated with the short range radio frequency bandwidth;
Fill with electrically non-conductive material in described hole; And
Described hole signal ground is interconnected on the transceiver.
Scheme 20: the module in the scheme 19, wherein this control module and the second control module are carried out radio communication.
Description of drawings
Now by way of example in conjunction with one or more embodiment are described with reference to the drawings, wherein:
Fig. 1 is the isometrical drawing according to control module of the present invention and antenna structure;
Fig. 2 is according to control module of the present invention and the isometric projection exploded view with antenna structure of remote transceiver;
Fig. 3 is according to one embodiment of the invention, in this embodiment, has formed additional and different antenna performance thereby slot antenna is placed on vertical orientations;
Fig. 4 is according to one embodiment of the invention, in this embodiment, will feed and a little be connected to transceiver thereby jockey can be the wave conductor signal ground; With
Fig. 5 is used for the aerial radiation pattern of exemplary chassis slot antenna and the graphic illustration of signal gain (loss) according to the present invention.
Embodiment
With reference now to accompanying drawing,, wherein shown just in order to illustrate some exemplary embodiment in the accompanying drawing, be not in order to limit.Fig. 1 has schematically set forth according to control module 10 of the present invention and antenna structure.A plurality of control modules 10 are arranged in the different spaces of vehicle, and described space can comprise luggage case, main cabin and enging cabin.Preferred each control module 10 is communicated by letter with one or more other control modules 10.The communication message can for example comprise audio frequency or visual information, control signal, sensor signal, diagnostic signal and confirmation signal.Control module 10 also can comprise the portable remote device, for example, cell phone or have the music player of wireless performance, it also can move to communicate by letter with vehicle-mounted control module 10.
Preferably have one or more perforation holes 54 in the chassis body 32 to hold access point, described access point for example connects or required additional connector (for example vehicle wire harness, RCA, HDMI and optical conenctor) at least one printed circuit board (PCB) 52 provides the electronic power of power.
Among the embodiment that sets forth in Fig. 1 and Fig. 2, slot antenna 36 forms by structure hole 37 between chassis body 32 and chassis lid 34.Chassis body 32 and chassis lid 34 are made by electromagnetism conducting metal (for example, mild steel).Slot antenna 36 is the non-conductive hole 37 in the conducting metal of chassis body 32 and chassis lid 34, and is preferably approximate required communication frequency wavelength along its longitudinal axis half.Thereby when control module 10 was utilized ISM2.4GHz short range radio frequency bandwidth (wavelength with 12.5cm, the half-wavelength that obtains are about 6.25cm) communication, the preferred length of axis was about 6.25cm along the longitudinal, and regulates for concrete communication frequency.In fact, because the environmental impact of near slot antenna 36 dielectrics and/or metal object has been found that short slot antenna 36 length cause better Energy Coupling performance.Half-wavelength slot antenna 36 provides slot antenna 36 on every side the signal near omnidirectional vertical with the longitudinal axis of slot antenna 36 to cover, and will describe in more detail below.
Although half-wavelength slot antenna 36 has been described in detail, other antenna lengths (for example, all-wave length, 3/4 wavelength or 1/4 wavelength) have direct mathematical relationship also within the scope of the invention and with required wavelength.Utilize the example of above ISM2.4GHz short range radio frequency, this will cause the all-wave slit crack antenna 36 of the about 12.5cm of length, the 3/4 wavelength slot antenna 36 of the about 9.375cm of length and the 1/4 wavelength slot antenna 36 of the about 3.125cm of length.
Fig. 2 schematically shows chassis lid 34 and dismantles the chassis 30 of coming from chassis body 32.Chassis body 32 has smooth generally rectangular base 40, and this bottom has a plurality of sides that extend upward, and comprises dorsal part 42, front side 44 and opposite side 46,48, has formed generally flat top edge 50.Therefore chassis body 32 has formed the 3-dimensional metal case, and this metal box is configured to hold one or more electronic circuit boards 52.Preferably have one or more perforation holes 54 in the chassis body 32 to hold access point, for example electrical power connector or other required connectors.Chassis body 32 comprises the opening 68 of rectangle, and this opening limits by two lateral edges 58,60 that extend to bottom margin 56 in a side (namely, dorsal part 42) from flat top edge 50.In a preferred embodiment, the length of bottom margin 56 is the length of the longitudinal axis of slot antenna, and is the length of required communication frequency half-wavelength therefore, namely, and for the about 6.25cm of ISM2.4GHz short range radio frequency bandwidth.
Feeding a little 38 is positioned on the chassis body 32, preferably on the center line of bottom margin 56 and adjacent bottom edge 56.Feed a little 38 by interconnection device 66 and transceiver 64 interconnection.Change 38 input impedance apart from the position capable of regulating slot antenna 36 of center line of feeding a little, namely, impedance is larger and when a little arbitrary edge side of the 38 convergences reduction in 58,60 o'clock of feeding on the center line of bottom margin 56.Interconnection device 66 is routed to the transceiver 64 that is positioned on the printed circuit board (PCB) 52 that is contained in chassis 30.Slot antenna 36 thereby signal ground are connected on the transceiver 64, and this transceiver 64 is gone back on the printed circuit board (PCB) 52 that signal ground is connected to control module 10.
Fig. 3 represents an alternate embodiments, and slot antenna is positioned at vertical orientations (with respect to the tray bottom of Fig. 1 and Fig. 2 and the longitudinal axis of slot antenna) in this embodiment, thereby forms additional and different antenna performances.For example, the vertical orientations slot antenna provides covering near omnidirectional signal around the slot antenna vertical with the longitudinal axis of slot antenna.The vertical clearance gap antenna is constructed with similar fashion with the slot antenna of having described, i.e. chassis body and chassis lid cooperation forms slot antenna.Namely, chassis body 32 is structurally similar as above, has bottom 40, forms generally a plurality of sides 42,44,46,48 and at least one sidepiece with at least one perforation hole 54 of smooth top 50.Chassis body 32 comprises rectangular aperture 68, and this opening limits by two lateral edges 58,60, and lateral edges 58,60 extends to bottom margin 56 in a side (for example dorsal part 42) from smooth top 50.In this embodiment, lateral edges 58,60 length is at least required communication frequency half-wavelength (namely for the about 6.25cm of ISM2.4GHz short range radio frequency bandwidth,) or frequency 1/4 wavelength (namely for the about 3.125cm of ISM2.4GHz short range radio frequency bandwidth), regulate according to concrete application.Feeding a little 38, to be positioned at edge 58,60 contiguous, and described edge will be as the antenna wall, namely as the edge 60 of description, slot antenna near center line on, and can aforesaidly adjust for input impedance.
Chassis lid 34 is with described above similar, and it is configured as and engages with the top 50 of chassis body 32 and comprise tab 80.When chassis lid 34 was assembled on the chassis body 32, tab 80 was charged in the rectangular aperture 68 of chassis body 32.Tab 80 has the first side 82, the second side 84 and bottom margin 86.When chassis lid 34 was assembled on the chassis body 32, each edge 82,84,86 of tab 80 all cooperated with the respective edges of the rectangular aperture 68 of chassis body 32.Lateral edges 84 also comprises rectangular channel %, and this groove is by the 84 upper and lower borders 90,92 that extend internally and inner boundary 94 limit from the edge.The length of inner boundary 94 is required communication frequency 1/4 wavelength or half-wavelength, designs according to concrete application.Therefore slot antenna is by lateral edges 60 and border 90,92 and 94 holes that limit and the longitudinal axis with tray bottom of being substantially perpendicular to 40.It will be apparent to those skilled in the art that slot antenna can be on wall 58 or 60.The lateral edges 84 that it is equally clear tab 80 can remove lower boundary 92, and replaces with the bottom margin 56 of the rectangular aperture 68 in the chassis body 32.Alternately, tab 80 can only comprise sidepiece 82,84 and bottom margin 86, distance between bottom margin 86 and the bottom margin 56 limits half frequency wavelength, namely, slot antenna can pass through edge 58,60 and bottom margin 56,86 form, and the frequency half-wavelength that it has equals remaining exposed edge 58 and 60.
Although two example orientations are described in detail, the invention is not restricted to this.It will be apparent for a person skilled in the art that, the orientation of slot antenna can be with respect to tray bottom 40 angled placements, other angles orientations that namely longitudinal axis of slot antenna can be spent with 15 degree, 30 degree, 45, firm communication is spent or be convenient to 60 degree, 75.
In one embodiment, the shape of capable of regulating tab 62 is to mate another required running frequency, and do not need to adjust the shape of the rectangular aperture 68 in the chassis body 32, from then on allow again to utilize chassis body 32 for other frequencies, and need not chassis body 32 do any mechanical alteration.
In one embodiment, slot antenna is electromagnetically coupled to the coupling mechanism 70 that is positioned at the transceiver 64 on the printed circuit board (PCB) 52 that is contained in chassis 30.In such an embodiment, coupling mechanism is arranged on the printed circuit board (PCB) 52 and can comprises electronic tracer, resonant structure and dielectric material one.For the Energy Transfer of maximum, the electromagnetic field of this coupling mechanism aligns with the longitudinal axis of slot antenna.
In one embodiment, the electricity that has a conductor wire (for example duplex wire, step circuit and coaxial cable) feed structure 66 can feed a little 38 and transceiver 64 between interconnection.In such embodiments, the rectangular apertures 68 in the contiguous chassis 30 connects, and described hole 68 forms slot antenna.
In one embodiment, can a plurality of slot antennas be set in single control module 10.The additional slit antenna can comprise redundant frequency range antenna, for example operates in a plurality of antennas on ISM2.4GHz or other the suitable radio frequencies, is beneficial to keep over a range of frequencies firm communication.Additional slot antenna also can comprise the slot antenna of a plurality of frequency ranges, for example ISM2.4GHz or 5.8GHz, thus be convenient in a plurality of frequency ranges, communicate with a plurality of control modules 10 or single control module 10.Additional slot antenna can be positioned at different orientation (for example parallel or vertical); Diverse location (for example one be positioned at back 42 and one be positioned at side 46); Or the combination of these two kinds of situations (for example slot antenna of the slot antenna of the parallel direction on the back 42 and the vertical direction on the side 46), thereby can satisfy the requirement of packing or the firm communication between the enhancing control module 10.In addition, when utilizing a plurality of slot antenna, each slot antenna has feeds a little 38, each feed a little 38 can be used for single or multiple printed circuit board (PCB)s 52 on single or multiple transceivers 64 communicate.For example, single transceiver 64 can be used for back 42 on the vertical clearance gap antenna and the parallel slit antenna on the side 46 communicates or the same slit antenna can be supplied with a plurality of transceivers on single or the printed circuit board (PCB) 52 that separates.
Fig. 4 represents an alternative embodiment, in this embodiment, will feed and a little 38 be interconnected to transceiver 64 thereby interconnection device 66 can be the wave conductor signal ground.Wave conductor interconnection device 66 can be the hollow metal wave conductor, and this wave conductor comprises rectangular hollow tubulose part.The hollow metal wave conductor has the hollow space that aligns with slot antenna and guiding and is positioned at transceiver 64 on the printed circuit board (PCB) 52.In addition, dielectric waveguide body (for example microstrip or strip line) also can be used for interconnection device 66.The dielectric waveguide body comprises conductive strips, and these conductive strips are embedded in the dielectric layer or the top of dielectric layer, and this dielectric layer is positioned on the wider ground level.Dielectric waveguide body signal ground is connected to slot antenna and between the transceiver 64 on the printed circuit board (PCB) 52.
Fig. 5 represents the aerial radiation pattern of an exemplary chassis slot antenna and the graphic illustration of signal gain (loss).This chassis slot antenna is constructed according to the preferred embodiment of concept described herein.Half-wavelength slot antenna provides perpendicular to the basically omnidirectional signal around the slot antenna of the longitudinal axis of described slot antenna and has covered.In order to compare, radiation pattern and signal gain (loss) that the outside is fixed up an aerial wire compare with it.The radiation pattern that fixes up an aerial wire with the outside of routine with signal gain (loss) compare the sense that the aerial radiation pattern of chassis slot antenna has shown the less loss of signal and improved.Thereby the slot antenna that forms by chassis 30 is firm for the variation on the orientation, allows the flexibility of the installation of control module in vehicle 10.Therefore, because radiation pattern is known, additional transceiver 64 can be positioned at vehicle, or antenna can be on the chassis 30 interior orientations, with the radiation pattern that allows two antennas position near each transceiver 64.
The present invention has described some preferred embodiment and modification thereof.Based on reading and understanding specification and can expect further carrying out modification and change.Therefore, the present invention is not intended to be limited to be used for implementing the disclosed embodiment of optimal mode of the present invention as imagination, and the present invention will comprise all execution modes that fall into the claims scope.
Claims (17)
1. radio communication control module comprises:
The conducting metal chassis, described conducting metal chassis comprises chassis body and chassis lid;
Non-conductive opening is positioned at chassis body;
Tab, this tab extends from chassis lid, described tab and non-conductive opening edge join, thereby set up the nonconducting hole of rectangle, this hole has longitudinal axis, and this longitudinal axis has the predetermined length that is used to form the slot antenna structure, and described predetermined length designs according to concrete communication frequency; And
Described slot antenna structure and the transceiver signal ground interconnection that is contained in the chassis.
2. the radio communication control module of claim 1, wherein, the longitudinal axis in described hole is horizontal orientation with respect to the tray bottom of chassis body.
3. the radio communication control module of claim 1, wherein, the longitudinal axis in described hole is vertical orientation with respect to the tray bottom of chassis body.
4. the radio communication control module of claim 1, wherein, the predetermined length of revising described longitudinal axis can be set up the communication frequency of slot antenna structure.
5. the radio communication control module of claim 1, wherein, the predetermined length of described longitudinal axis equals 1/2 of communication wavelengths.
6. the radio communication control module of claim 1, wherein, the predetermined length of described longitudinal axis equals 1/4 of communication wavelengths.
7. the radio communication control module of claim 1, wherein, environmental sealing is filled to form with non-conductive material in described hole.
8. the radio communication control module of claim 1, wherein, thereby the omnidirectional signal that described longitudinal axis is directed to provide vertical covers the position that approaches away from another transceiver of described radio communication control module.
9. the radio communication control module in the claim 1 wherein, comprises feeding a little of contiguous described hole with the hole of transceiver signal ground interconnection.
10. the radio communication control module of claim 9, wherein, described hole comprises adjustable impedance, this impedance is adjusted by regulating apart from a distance of feeding of the longitudinal axis center line of slot antenna structure.
11. the radio communication control module in the claim 1, wherein, the slot antenna structure is by interconnection device and transceiver interconnection.
12. the radio communication control module in the claim 11, wherein, described interconnection device comprises the electricity structure of feeding.
13. the radio communication control module in the claim 11, wherein, described interconnection device comprises the electromagnetic coupler that joins on the coupling mechanism.
14. the radio communication control module in the claim 13, wherein the electromagnetic field in the electromagnetic coupler aligns with the longitudinal axis in described hole.
15. the radio communication control module in the claim 11, wherein, described interconnection device comprises wave conductor.
16. a radio communication control module comprises:
Chassis body, this chassis body are made of conducting metal and comprise that non-conductive opening, this opening comprise bottom margin part and contiguous lateral edge portions;
Chassis lid, this chassis lid is made of conducting metal and comprises tab, this tab has the marginal portion, and when chassis lid is assemblied on the chassis body, thereby this tab is positioned at the bottom margin part of the contiguous chassis body in this marginal portion of non-conductive opening of chassis body;
The hole is formed by the bottom margin part of chassis body, the lateral edge portions of vicinity and the marginal portion of tab, and this hole has the longitudinal axis of predetermined length, and this predetermined length is corresponding to the communication frequency of the wireless communication protocol that is associated with the short range radio frequency bandwidth;
Fill with electrically non-conductive material in described hole; And
Described hole signal ground is interconnected on the transceiver.
17. the radio communication control module in the claim 16, wherein this radio communication control module and the second radio communication control module are carried out radio communication.
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US16338509P | 2009-03-25 | 2009-03-25 | |
| US61/163,385 | 2009-03-25 | ||
| US61/163385 | 2009-03-25 | ||
| US12/727,298 US8299971B2 (en) | 2009-03-25 | 2010-03-19 | Control module chassis-integrated slot antenna |
| US12/727298 | 2010-03-19 | ||
| US12/727,298 | 2010-03-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101848013A CN101848013A (en) | 2010-09-29 |
| CN101848013B true CN101848013B (en) | 2013-03-27 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010176845 Active CN101848013B (en) | 2009-03-25 | 2010-03-25 | Control module chassis integrated slot antenna |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9774091B2 (en) | 2012-03-20 | 2017-09-26 | Thomson Licensing Dtv | Dielectric slot antenna using capacitive coupling |
| JP6971163B2 (en) * | 2018-02-13 | 2021-11-24 | 株式会社ヨコオ | Antenna device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5757326A (en) * | 1993-03-29 | 1998-05-26 | Seiko Epson Corporation | Slot antenna device and wireless apparatus employing the antenna device |
| CN1921221A (en) * | 2005-08-23 | 2007-02-28 | 索尼株式会社 | Slot antenna |
| CN101170211A (en) * | 2007-11-08 | 2008-04-30 | 上海交通大学 | Slice gap antenna |
-
2010
- 2010-03-25 CN CN 201010176845 patent/CN101848013B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5757326A (en) * | 1993-03-29 | 1998-05-26 | Seiko Epson Corporation | Slot antenna device and wireless apparatus employing the antenna device |
| CN1921221A (en) * | 2005-08-23 | 2007-02-28 | 索尼株式会社 | Slot antenna |
| CN101170211A (en) * | 2007-11-08 | 2008-04-30 | 上海交通大学 | Slice gap antenna |
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| CN101848013A (en) | 2010-09-29 |
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