Specific embodiment
Illustrative embodiments are described more fully referring now to accompanying drawing.
RKE antenna is integrated in vehicle antenna component sometimes.But present inventors have realized that, existing RKE antenna may have narrow bandwidth, bad RL return loss and low passive radiation gain.Existing RKE antenna is also possible to frequency stabilization sex chromosome mosaicism, for this antenna, frequently centre frequency change is there may be due to vehicle movement vehicle up-down vibration (for example, when, etc.).
In recognition of the above-described difficulties, present inventor proposes and discloses the illustrative embodiments of the antenna (for example, remote keyless enters (RKE), remote keyless igniting (RKI), tire pressure monitoring (TPM) etc.) for Remote Control Vehicle purposes herein.The antenna can be used in the vehicle antenna components such as shark fins antenna module.In some illustrative embodiments disclosed herein, the RKE antenna can have one or more (but needing not to be any or all) in following feature, bandwidth such as wide, good RL return loss, passive radiation gain high, good frequency stability, small size and/or need not in RKE antenna integrated low noise amplifier.
In illustrative embodiments disclosed herein, the antenna for Remote Control Vehicle purposes can include printed circuit board (PCB) (PCB) (putting it briefly, substrate) and multiple electric conductors (for example, conductive trace or metal wire etc.).First and second electric conductors can be arranged (for example, wind, wind, curl up, coil) around PCB or in PCB, limited so as to the first and second electric conductors or including the length along PCB or a part of first and second helical antenna elements (for example, square coil or spiral winding etc.) for extending of height.First and second helical antenna elements wind each other, interlaced or concentric.But the first and second helical antenna elements are physically and electrically spaced apart from each other and do not make electrical contact with each other.During antenna operation, antenna can be operated as the monopole with inductor and capacitive load.First and second electric conductors can be operated correspondingly or including positive pole and negative pole as positive pole and negative pole.
Referring now to accompanying drawing, Fig. 1 shows the vehicle antenna component 100 of the one or more aspects for implementing the disclosure.As shown in figure 1, vehicle antenna component 100 includes antenna 104, pedestal or base 108 and antenna house or cover 112.RKE antenna 104 be arranged in it is common by pedestal 108 and antenna house 12 limit or inside between pedestal 108 and antenna house 112 in.Antenna house 112 has shark fins shape, so that antenna module 100 can also be referred to as shark fins antenna.In the exemplary embodiment, RKE antenna 104 can be configured for other Remote Control Vehicle purposes, remote keyless igniting (RKI), tire pressure monitoring (TPM) etc..
As shown in Figures 2 and 3, RKE antenna 104 includes printed circuit board (PCB) (PCB) (putting it briefly, substrate) 116 and multiple antenna elements (putting it briefly, electric conductor).For example, PCB 116 can include FR4 composites, and the FR4 composites include the braided fiber glass cloth of the epobond epoxyn with fire resisting.Again for example, antenna element can be including conductive trace or wire (for example, copper etc.).
The multiple antenna element includes first and second electric conductors 120,124 of the arrangement (for example, wind, wind, curl up, coil) around PCB 116 or in PCB116.For example, in the first and second electric conductors 120,124 each of can be arranged along the first and second of PCB 116 the relative sides or towards opposite side 128.Each in first and second electric conductors 120,124 can be around the end of PCB 116 or wound edgewise, so that each in the first and second electric conductors 120,124 is the single continuous electric conductor that the side along PCB 116 and the end around PCB 116 extend.Alternatively, a part for side along PCB 116 of the first and second electric conductors 120,124 neighbouring can be connected to the corresponding part of the opposite sides along PCB 116 of the first and second electric conductors 120,124.Or, for example, a part for side along PCB 116 of the first and second electric conductors 120,124 can for example pass through the part of the opposite sides along PCB 116 of the first and second electric conductors 120,124 of the electrical connection such as solder in electroplating ventilating hole, via, cross tie part, through hole or interconnection.
First and second electric conductors 120,124 can be limited or the first and second helical antenna elements (for example, square coil or spiral winding etc.) including winding each other, interlaced and/or concentric respectively.First and second electric conductors 120 or 124 can be limited or positive pole and negative pole including RKE antenna 104 respectively.
First and second helical antenna elements can physically and electrically be spaced apart from each other so that they physical contact with one another or are not electrical contact with each other.But, the first and second helical antenna elements can closely, capacitively or parasitics ground is coupled to each other.In the illustrative embodiments, linear or straight acclivitous section or part are each included in first and second helical antenna elements, these linear or straight acclivitous sections or part and the bending point between them are (for example, 90 degree bending etc.) connection, they collaboratively limit 12 square coils, ring or spirals.The implementation method of alternative can be configured differently, for example, having more or less than 12 square coils, ring or spirals, etc..
Multiple antenna elements extend to the top 136 of PCT116 from the bottom 132 of PCB 116 (for example, linearly, vertically, etc.) along PCB 116.In the operating process of RKE antenna 104, electric conductor 120,124 can be operated as the monopole with inductor and capacitive load.First and second electric conductors 120,124 can be operated or including positive pole and negative pole respectively as positive pole and negative pole.Additionally, in the illustrative embodiments, electric conductor 120,124 does not contact with each other physically and electrically.But, electric conductor 120,124 be configured to closely, capacitively or parasitics coupled to each other.
With continued reference to Fig. 2 and Fig. 3, the first electric conductor 120 includes the end 140 of the bottom 132 for extending PCB 116.End 140 can serve as output end or the port of RKE antenna 104, such as exporting received RKE antenna signal, so as to from the position away from vehicle and/or not with vehicle physical contiguously remote lock or unblock electric door.
As shown in figure 1, RKE antenna 104 can couple (for example, welding etc.) to PCB 148 (Fig. 1) so that the PCB 116 of RKE antenna 104 is generally perpendicular to PCB 148.PCB 148 can be attached to base 108 by machanical fastener 152 etc..In addition, RKE antenna 104 can include protuberance 154 (Fig. 4), the respective slots or opening that the protuberance 154 is extended downwardly and is interconnected in PCB 148 are interior, to help position and/or couple the PCB 116 and PCB 148 of RKE antenna 104.
Fig. 4 additionally provides the example sizes (unit is millimeter (mm)) of the PCB 116 of RKE antenna 104.As illustrated, in the case of the protuberance 154 for not including extending downwardly, PCB 116 can have the height of about 52mm.When the protuberance 154 including extending downwardly, PCB 116 can have the overall height of about 54mm.PCB 116 can have the width of 18mm and the thickness of 3.2mm.These sizes (and individual disclosed every other size here) are only example, because can use greater or lesser PCB and antenna in other illustrative embodiments.
Fig. 1 also show containment member 156, and the containment member 156 can operate to prevent pollutant (for example, dust, moisture etc.) from being invaded between vehicle installation surface and base 108 as seal.In addition, antenna house 112 can be the offer an aesthetically pleasing appearance of antenna module 100, and can construct (for example, size sets, shapes, constitutes, etc.) into aerodynamic configuration.In the illustrated embodiment, for example, antenna house 112 is constructed with aesthetically pleasant aerodynamics shark fins.However, in other illustrative embodiments, antenna module can include having from the cover shown here as different constructions, for example, with construction beyond shark fins construction etc..In the scope of the present disclosure, antenna house 12 can be formed by various materials, such as polymer, polyurethane, plastic material be (for example, polycarbonate Alloys, makrolon-ABS-copolymer (PC/ABS) blend, etc.), GRP material, synthetic resin material, thermoplastic etc..
Fig. 5 to Fig. 7 provides the analysis result of the computer simulation model of the RKE antenna 112 shown in Fig. 2 and Fig. 3.What these results shown in Fig. 5 to Fig. 7 were provided just for the sake of the purpose of illustration, it is not intended to be limited.In the implementation method of alternative, RKE antenna can be configured differently, and can have the operation different from the parameter shown in Fig. 5 to Fig. 7 or performance parameter.For example, another illustrative embodiments can include the RKE antenna of the bandwidth for being constructed having 313MHz to 316MHz.In further embodiment, antenna can be configured for other the Remote Control Vehicle purposes in addition to RKE, such as remote keyless igniting, tire pressure monitoring etc..
More specifically, Fig. 5 shows for the RKE antenna 112 shown in Fig. 2 and Fig. 3 decibel (dB) RL return loss to megahertz Line Chart of (MHz) frequency.Generally, Fig. 5 shows that RKE antenna 112 has -8dB or smaller/more preferable good RL return loss for the frequency of 430MHz to 438MHz, such as RL return loss is -8.7915dB in 430MHz, is -13.323dB in 433MHz, it is -8.1148dB, etc. in 438MHz.
Fig. 6 be on a rice diameter ground plane for the RKE antenna shown in Fig. 2 and Fig. 3 decibel isotropism (dBi) linear averaging gain (vertical polarization) to megahertz Line Chart of (MHz) frequency.Fig. 7 shows the minimum and maximum average linear gain for the frequency shown in Fig. 6.Generally, Fig. 6 and Fig. 7 show that RKE antenna 112 has the good linear gain for be more than/being better than -3dBi in the bandwidth in whole width RKE frequency ranges or from 432MHz to 434MHz.
In the exemplary embodiment, antenna disclosed herein is (for example, RKE antenna 112 etc.) it is desirably integrated into the antenna module of roof installation, so that the function of antenna, style, area occupied and/or attaching scheme can keep identical or essentially identical, and no matter how additional antenna function need not all vary significantly.For example, vehicle antenna component can include RKE antenna and one or more other different types of antennas, such as one or more AM/FM wireless aerials, satellite digital audio radio service (SDARS) antenna, GLONASS (GNSS) antenna, cellular antenna, Wi-Fi antennas etc..In this embodiment, RKE antenna and one or more other antennas can be co-located at or on common base or base, and are positioned at the same antenna house with shark fins construction or cover following.Vehicle antenna component can be installed or is assemblied on surface of vehicle, such as it is arranged on roof, boot or bonnet, to assist in ensuring that antenna is gone up or has the uncrossed visual field towards zenith overhead, and cause that the installation surface of automobile is used as the ground plane used by antenna module, so as to improve the reception of signal.One or more other antennas can be with (for example, by coaxial cable etc.) it is connected to one or more electronic installations in Vehicular occupant car (for example, radio receiver, touch-screen display, guider, cell phone etc.) so that vehicle antenna component can be used to send signal to the electronic installation from vehicle or receive signal from these electronic installations.
For example, antenna disclosed herein can be included and as vehicle (for example, automobile, motorcycle, ship etc.) remote keyless module (for example, remote keyless enters module, remote keyless ignition module etc.) a part.Antenna can be disposed in cover or antenna house (for example, for protecting antenna with the intrusion of preventing scrap etc.) and be attached to vehicle and operated.Also, the antenna installed can receive the signal (for example, coming from key, jewelry etc.) of expected frequency, for starting desired vehicle operating (for example, solution is locked a door, starting igniting etc.).
Antenna disclosed herein can be configured to one or more specific frequency reception signals.For example, the illustrative embodiments of antenna can be configured to the frequency reception signal of about 315 megahertzs (MHz) and/or about 433 megahertzs of grades.In other examples implementation method, antenna can be configured in the scope of the present disclosure with one or more different frequency reception signals.
Antenna disclosed herein may be mounted in various supporting constructions.For example, RKE antenna disclosed herein may be mounted in the supporting construction of other mobile platforms such as bus, train, aircraft, bicycle, motorcycle, steamer.Thus, here to motor vehicles or automobile referring in particular to the supporting construction or environment that should not be construed as being limited to the scope of the present disclosure any particular type.
Illustrative embodiments are provided as:The displosure will be detailed and scope will be fully conveyed into those skilled in the art.List many details, the embodiment of such as specific part, device and method is thoroughly understanding embodiments of the present invention.For those skilled in the art it should be understood that:Detail need not be used;Illustrative embodiments can be embodied in many different forms;And illustrative embodiments should not be interpreted as limiting the scope of the present invention.In some illustrative embodiments, known processes, known apparatus structure and known technology are not described in detail.In addition, purpose only for illustrating provides the advantage and improvement that can be realized by one or more implementation methods of the invention, it does not limit the scope of the invention, because illustrative embodiments disclosed herein can provide all or not provide above-mentioned advantage and improvement completely and still fall within the scope of the present invention.
Specific size disclosed herein, specific material and/or concrete shape are substantially embodiment, are not limit the scope of the invention.The special value of given parameters disclosed herein and the scope of special value be not excluded for may be useful in one or more the embodiment disclosed herein other numerical value and number range.Furthermore, it is contemplated that:Any two special values of design parameter described herein can limit and be suitable to the end points of the number range of given parameters (the first numerical value of such as given parameters can be interpreted to the disclosure of second value:Any value between first numerical value and second value can also be used for given parameters).If for example, parameter X is illustrated as with numerical value A and is illustrated as with numerical value Z herein, then it is contemplated that:Parameter X can have from about A to the number range of about Z.Similar, it can be envisaged that:Two or more number ranges of parameter disclosure (though these scopes whether intussusception, overlap or different) combination of all possible number range is included, it may be required that the end points for being applied in combination disclosed scope of the number range.If for example, parameter X is illustrated as the numerical value for having in 1 to 10 or 2 to 9 or 3 to 8 scopes herein, then it is likewise contemplated that:Parameter X can have other number ranges for including 1 to 9,1 to 8,1 to 3,1 to 2,2 to 10,2 to 8,2 to 3,3 to 10 and 3 to 9.
Term as used herein is merely to the detailed illustrative embodiments of description, it is not intended to limited.As used herein, singulative " " can also be intended to include plural form with " this/that ", explicitly indicate that unless the context otherwise.Term "comprising", " including " and " having " be inclusive, and thus the presence of the feature, entirety, step, operation, element and/or part is specifically illustrated, but be not excluded for the presence of one or more of the other feature, entirety, step, operation, element, part and/or its combination or additional.It is not meant to the step of by method described here, process and operation are built into and necessarily require it to be performed according to described or shown detailed sequence, unless the detailed sequence is specifically identified as execution sequence.It should also be understood that the step of add or alternative can be used.
Be referred to as when element or layer " --- on ", " being bonded to ", " being connected to " or when " being attached to " another element or layer, element or layer may directly exist ----go up, engage, connect or be attached to other elements or layer, or there may be intermediary element or layer.By comparison, when being referred to as " directly exist --- on ", " being spliced directly to ", " being connected directly to " or " being attached directly to " another element or layer when element, may not exist intermediary element or layer.Other words (such as " between --- between " and " directly exist --- ", " adjoining " relative to " abutting directly against " etc.) for describing relation between element should in an identical manner be explained.As used in this, term " and/or " include one or more any one or all combinations in lising of association.
Term " about " is used to be represented during numerical value:Result of calculation or measurement result is allowed somewhat to owe accurate (close to exact value in terms of numerical value;Approximately or reasonably near numerical value;Almost).For some reason, if the inaccuracy in addition by " about " offer is understood in the art not with this usual meaning, then " about " as used herein represents the change at least that can be produced by measurement or using the conventional method of these parameters.For example, term " substantially ", " about " and " basic " can be used for referring in the range of fabrication tolerance (for example, the plane of angle +/- 30 ', 0 enters to be made as +/- 0.5,1 plane enters to be made as +/- 0.25, and 2 planes are entered to be made as +/- 0.13 etc.) herein.Whether changed by term " about ", claim all includes equivalent amount.
Although term first, second, third, etc. can be used for description Various Components, part, region, layer and/or part herein, these elements, part, region, layer and/or part should not be limited by these terms.These terms can be only used for distinguishing an element, part, region, layer or part and other regions, layer or partial difference.Order or order are not implied that when herein using the term of such as " first ", " second " and other many terms etc, unless context is explicitly indicated that.Therefore, the teaching that the first element of discussion below, part, region, layer or part can be divided without deviating from illustrative embodiments referred to as the second element, part, region, layer arc portion.
The spatially related term of such as " inside " " outside " " down below " " in lower section ", " bottom " " up " " top " or the like can be used to be easy to herein description to describe the element or feature and another element or the relation of feature shown in accompanying drawing.Spatially related term can also be intended to be included in the different azimuth with device or operation in addition to the orientation described in including accompanying drawing.If for example, the device in accompanying drawing is operated, then being described as be at other elements or feature lower section or beneath element can then be oriented in other elements or feature top.Therefore, embodiment term " in lower section " may include " up " and " in lower section " two orientation.Device can be otherwise oriented (be rotated by 90 ° or rotate at other orientations), so as to correspondingly explain spatially related description language as used herein.
In order to illustrate with the purpose for describing there is provided implementation method in preceding description.It is not intended limit or the limitation present invention.The discrete component of specific embodiment, expected or described purposes or feature are substantially not constrained to this specific embodiment, but even if being not explicitly shown or described out, are in appropriate circumstances tradable and can be used in selected implementation method.Also same implementation method can in many ways be changed.These changes are not regarded as a departure from the present invention, and all these modifications ought to be included within the scope of the invention.