CN204103036U - Car antenna assembly - Google Patents

Abstract

The utility model relates to car antenna assembly.Car antenna assembly for being mounted to vehicle body wall roughly comprises and is configured for wireless first antenna of AM/FM.Described first antenna comprises first printed circuit board (PCB) with the first side surface and the second opposed side surface.Electric conductor extends along the first side surface of described first printed circuit board (PCB) and the second side surface.The planar structure of conduction is attached to the top of described first printed circuit board (PCB).

Description

Car antenna assembly

Technical field

The utility model is broadly directed to multiband car antenna assembly.

Background technology

This section of content provides the background information relevant to the utility model, and this information might not be prior art.

Various dissimilar antenna is used in autonomous driving vehicle industry, comprises AM/FM wireless aerial, Satellite Digital Audio Radio service antenna, global positioning system antenna, antenna for mobile phone etc.Multiband aerial assembly is also used in autonomous driving vehicle industry usually.Multiband aerial assembly typically comprises multiple antenna to cover and to operate in multiple frequency range.The printed circuit board (PCB) (PCB) with radiator antenna element is the typical component of multiband aerial assembly.

Automotive vehicle antenna can be installed or be assemblied on surface of vehicle, on the ceiling of such as vehicle, luggage case or hood, to contribute to guaranteeing that antenna is above head or not interrupted towards the visual field that zenith has.Antenna can connect (such as, via coaxal cable etc.) to vehicle's passenger compartment inside one or more electronic equipments (such as, radio receiver, touch screen displays, navigator, portable phone etc.), make multiband aerial assembly can operate from the electronic equipment transmission of signal of vehicle interior and/or Received signal strength to the electronic equipment of vehicle interior.

Utility model content

This section of content provides overall content of the present utility model, but is not that four corner or the comprehensive of whole feature disclose.

According to first aspect, disclose a kind of exemplary embodiment of car antenna assembly.In exemplary embodiment, the car antenna assembly for being mounted to vehicle body wall roughly comprises and is configured to wireless first antenna of AM/FM.Described first antenna comprises first printed circuit board (PCB) with the first side surface and the second opposed side surface.Electric conductor extends along the first side surface of described first printed circuit board (PCB) and the second side surface.The planar structure of conduction is attached to the top of described first printed circuit board (PCB).

In second aspect, the planar structure of described conduction is soldered to the described top of described first printed circuit board (PCB); And/or the planar structure of described conduction is on the described top not using the situation lower link of machanical fastener or contact clip to described first printed circuit board (PCB).

In the third aspect, the planar structure of described conduction is roughly positioned at identical plane with described first printed circuit board (PCB) and described electric conductor; And/or the planar structure of described conduction and described first printed circuit board (PCB) and described electric conductor roughly coplanar; And/or the planar structure of described conduction is roughly positioned at the area of coverage limited by described first printed circuit board (PCB) and described electric conductor; And/or the planar structure of described conduction comprises stamped sheet metal.

In fourth aspect, the planar structure of described conduction comprises planar section and from described planar section projection outwardly; And described first printed circuit board (PCB) comprises the opening being configured to receive described projection wherein; Thus, described projection is positioned in described opening contribute to by the planar structure of described conduction aim at and/or be retained to described first printed circuit board (PCB).

In the 5th, planar structure entirety except described projection of described conduction is flat and plane, has the structure of tabular; And/or the described planar section of the planar structure of described conduction is parallel to described first printed circuit board (PCB); And/or described protrusion engagement contributed in described opening the planar structure of described conduction is aimed at and/or is retained to described first printed circuit board (PCB), thus be beneficial to the planar structure of described conduction is soldered to described first printed circuit board (PCB); And/or the planar structure of described conduction comprises stamped sheet metal, described stamped sheet metal has the folded part limiting described projection.

In the 6th, described electric conductor is interconnected at least partially around described printed circuit board (PCB), thus set up continuous print power path at least partially around described in described printed circuit board (PCB), described electric conductor can operate the inductance loading unit limiting described first antenna thus, and the planar structure of described conduction can operate the capacitive load portion limiting described first antenna thus; And/or described electric conductor limits by along described first side surface of described first printed circuit board (PCB) and/or the trace of described second side surface.

In the 7th, described car antenna component structure is being inserted the pilot hole in vehicle body wall from vehicle outside and is installing after being clamped from side, interior cabin and be assembled to described vehicle body wall regularly.

In eighth aspect, this car antenna assembly also comprises: base; Radome, this radome is attached to described base, makes jointly to limit inner space by described radome and described base; And second antenna, this second antenna can operate being different from the wireless one or more frequency range of AM/FM; Wherein, described first electric wire and described second antenna are positioned at described inner space.

In the 9th, the planar structure of described conduction is not directly attached to described radome; And/or the planar structure of described conduction is soldered to the described top of described first printed circuit board (PCB) when not using any contact clip of the planar structure of this conduction being electrically connected to described first printed circuit board (PCB) and the planar structure of described conduction being directly attached to any machanical fastener of described radome; And/or described radome comprises shark fin type structure, this shark fin type structure has the top being configured to the planar structure receiving described conduction.

In the tenth, described first printed circuit board (PCB) is attached to the second printed circuit board (PCB); Described second antenna comprises the paster antenna being configured to operate receiving satellite signal, and described satellite-signal is such as global positioning system signal; Described paster antenna is attached to the 3rd printed circuit board (PCB); And described second printed circuit board (PCB) and described 3rd printed circuit board (PCB) are attached to described base.

The explanation provided from here, further application will become obvious.The explanation of this utility model content part and object lesson are only illustrative purposes, are not intended to limit the scope of the present disclosure.

Accompanying drawing explanation

Accompanying drawing described herein is only the illustrative purpose of selected execution mode, not all possible enforcement, is not intended to limit the scope of the present disclosure.

Fig. 1 is the exploded perspective view of the exemplary embodiment of the antenna module comprising at least one or more aspect of the present disclosure;

Fig. 2 is the stereogram after the antenna module shown in Fig. 1 fits together, not shown lid or radome;

Fig. 3 is the stereogram of the AM/FM antenna element of the antenna module shown in Fig. 2;

Fig. 4 is another stereogram of the AM/FM antenna element shown in Fig. 3, also illustrates the gps antenna parts of the antenna module shown in Fig. 2;

Fig. 5 is the stereogram of the opposite side of the AM/FM antenna element shown in Fig. 3;

Fig. 6 is the exploded perspective view of the AM/FM antenna shown in Fig. 5, illustrate the demonstration mode according to exemplary embodiment, pass through which, engage hole in the pcb or slit via by projection or from planar structure part outwardly, planar structure can be aimed at and be connected the top of printed circuit board (PCB) (PCB);

Fig. 7 is the stereogram of the AM/FM antenna element according to exemplary embodiment, and AM/FM antenna element has the planar structure on the top being soldered to printed circuit board (PCB);

Fig. 8 is the stereogram of AM/FM antenna element, and it comprises the punching press AM/FM antenna element of mechanical fasteners to the top of printed circuit board (PCB), and the contrast of Fig. 7 and Fig. 8 contributes to illustrating the narrower or thinner upper profile that can be realized by disclosure exemplary embodiment;

Fig. 9 is the stereogram being positioned at radome above the AM/FM antenna element shown in Fig. 7 or lid;

Figure 10 is the stereogram being positioned at radome above the AM/FM antenna element shown in Fig. 8 or lid, and the contrast of Fig. 9 and Figure 10 contributes to illustrating the narrower or thinner upper profile that can be realized by disclosure exemplary embodiment;

Figure 11 is the line chart of AM (Modulation and Amplitude Modulation) relative gain, show signal strength signal intensity (decibel is unit) relative to reference levels (dBr) to frequency (kilohertz KHz is unit), it is measured on the circular ground of a rice diameter for the AM/FM antenna element of the exemplary antenna assembly shown in Fig. 1 and Fig. 2;

Figure 12 is the line chart of linear vertical mean F M gain, isotropism decibel (dBi) is to frequency (megahertz MHz is unit), and it is measured on the circular ground of a rice diameter for the AM/FM antenna element of the exemplary antenna assembly shown in Fig. 1 and Fig. 2; And

Figure 13 to Figure 19 illustrates the AM/FM antenna element of the exemplary antenna assembly shown in Fig. 1 and Fig. 2 at the ground radiation pattern of the circular of a rice diameter, and linear averaging gain also illustrates in fig. 12.

Respective figure is marked in some accompanying drawings and indicates corresponding component.

Embodiment

More completely exemplary embodiment is described referring now to accompanying drawing.

Inventor recognizes, needs the multiband car antenna assembly of less (such as, narrower, thinner etc.), and it is not to need complicated manufacture process to manufacture AM/FM antenna element.Recognize above after, inventor develops and discloses the exemplary embodiment of multiband car antenna assembly or system, and its overall dimension is little or compact, has narrow or thin upper profile.

In the exemplary embodiment of antenna module, there is AM/FM antenna, it comprises general plane or flat conductive structure or element (such as, stamped metal panel element etc.).Conductive structure or element connect (such as, welding, and do not use bolt, folder or other separate machine securing members etc.) to the top of AM/FM printed circuit board (PCB) (PCB) antenna (such as, around there is the printed circuit board (PCB) of conductive trace etc.).During use, conductive structure or element operation are to form the capacitive load portion of AM/FM antenna.Use general plane or flat conductive structure or element allow to use radome, housing or the lid with narrow or thin top, such as, as shown in the contrast of Fig. 9 and Figure 10.This allows again the overall dimension or the profile that reduce antenna module, and/or allows radome to have narrow better moulding (such as, aesthstic comfortable, aerodynamic shark fin type structure etc.).Such as, radome can be the about 177mm of length, highly approximately 68.3mm, the about 74.5mm of Breadth Maximum, and minimum widith (near top) approximately 8mm.

With reference now to accompanying drawing, Fig. 1 and Fig. 2 illustrates the exemplary embodiment of antenna module 100, and it comprises at least one or more aspect of the present disclosure.As shown, antenna module 100 comprises base 104 (or bottom) and the first and second antenna 108 and 112, first and second antennas 108 and 112 and is co-located on base 104 or by base 104 and supports, as disclosed herein.

First antenna 108 is vertical unipole antennas, is configured to AM/FM radio (such as, being configured to receive the AM/FM radio signal etc. expected).In this exemplary embodiment, AM/FM antenna 108 comprises the first printed circuit board (PCB) 116, or is limited by the first printed circuit board (PCB) 116.AM/FM antenna PCB116 is attached to another or the second printed circuit board (PCB) 120 that are positioned to towards the rear portion of base 104.PCB116 is approximately perpendicular to PCB120.PCB120 is attached to base 104 by machanical fastener 124.AM/FM antenna PCB116 can be attached to PCB120 by solder etc.When expecting, other suitable connections can be used.In addition, AM/FM antenna PCB116 can comprise to downward-extension and the jut in the respective slots portion of interconnected PCB120, to contribute to further being located by AM/FM antenna PCB116 and/or being connected on PCB120.

Conductive trace 128 (being broadly electric conductor) is arranged along the pars intermedia of AM/FM antenna PCB116, loads AM/FM antenna 108 for inductance.Trace 128 is towards the inductance loading unit of the pars intermedia restriction AM/FM antenna 108 of AM/FM antenna PCB116.Trace 128 can be inscribed in around PCB116.The respective side surface that trace 128 is orientated along AM/FM antenna PCB116 is roughly parallel to each other, and extends in the longitudinal direction along AM/FM antenna PCB116.The end of trace 128 can bend around AM/FM antenna PCB116 or extend through AM/FM antenna PCB116 (position at the side edge part towards PCB116), thus the corresponding trace 128 that interconnects on the opposed side surface of AM/FM antenna PCB116.Like this, trace 128 defines roughly around the continuous print power path (such as, when viewed from the top around AM/FM antenna PCB116 one-tenth clockwise direction etc.) becoming spiral at least partially of AM/FM antenna 108.In the illustrated embodiment, there are ten traces 128, they are along first and second location, surface of AM/FM antenna PCB116.When expecting, other antenna modules can comprise the trace (such as, nine traces, 11 traces etc.) of other quantity.In addition, the number of traces of the every side of AM/FM antenna PCB116 can be different.

Trace 130 extends from bottom trace 128 and is soldered to PCB120, for trace 128 is electrically connected to PCB120.Alternate embodiments can comprise other devices for trace 128 being electrically connected to PCB120.Such as, can use tie that AM/FM antenna 108 is electrically connected to PCB120.Tie can pass through PCB120 (such as, via solder connection etc.) and be connected to lower trace on PCB116.Trace 128 is electrically connected to the inductance loading unit that PCB120 contributes to limiting AM/FM antenna 108.One or more upper trace on PCB116 can be electrically connected (such as, via solder connection etc.) to conductive structure or element 132.Trace 128 is electrically connected to the capacitive load portion that conductive structure or element 132 contribute to limiting AM/FM antenna 108.

Conductive structure or element 132 are attached to the top of AM/FM antenna PCB116.Conductive structure or element 132 can also be called high load capacity element or plate herein.

As shown in Figure 5 and Figure 6, conductive structure or element 132 can connect (such as, welding etc.) and not use bolt, folder or other independently machanical fasteners to AM/FM antenna PCB116.In this exemplary embodiment, conductive structure or element 132 comprise projection or part 136, and projection or part 136 are from the plane of conductive structure 132 or flat part 138 (Fig. 6) outwardly (such as, vertical etc.).Projection 136 can engage or be positioned in the opening of PCB116, hole or slit 140.The position of projection 136 in opening 140 can contribute at assembly process (such as, before conductive structure or element 132 are soldered to PCB116) by conductive structure or element alignment be retained to PCB116.Therefore, this exemplary embodiment does not need or does not use independent contact to press from both sides high load capacity element is electrically connected to PCB, does not also need or does not use machanical fastener that high load capacity element is directly attached to radome.Such as, do not need or do not use bolt that conductive structure or element 132 are directly attached to radome, lid or housing 156.In this exemplary embodiment, conductive structure or element 132 are directly attached to PCB116, but conductive structure or element 132 are not directly attached to radome 156.And, at conductive structure or also do not need between element 132 and PCB116 or do not use contact clip.Alternatively, other execution modes can comprise other devices for conductive structure or element 132 being welded or be connected to PCB116.

Conductive structure or element 132 are made up of one or more suitable electric conducting material (such as, metallic plate etc.).In exemplary embodiment, conductive structure or element 132 comprise stamped sheet metal.Such as, conductive structure or element 132 can be stamped to form from metallic plate or other suitable conductive material single-pieces.Stamping material can be bent or be folded to form from stamped sheet metal projection outwardly or part 136, as shown in Figure 6.But except through folding, bending or the projection 136 that is shaped, in this example embodiment, the remainder of stamped metal plate is not folded, bending or otherwise three-dimensional.In this example embodiment, conductive structure or element 132 can manufacture via relatively low cost and too not complicated process.

Conductive structure or element 132 are general flat and plane except projection 136, have the structure of tabular.Therefore, the major part of conductive structure or element 132, majority or substantially entirety be flat and plane, there is the structure of tabular, and be parallel to PCB116.As Fig. 3 and Fig. 5 illustrates, conductive structure or element 132 can with PCB116 on roughly remain in same plane with the trace 128 of element 132 homonymy, or they are roughly coplanar.In other words, conductive structure or element 132 can remain on substantially with in the area of coverage of the trace 128 of element 132 homonymy or thickness on PCB116, and not to the protruding outside significant amount of this area of coverage or thickness.

As shown in Figure 3, conductive structure or element 132 can be positioned at center or longitudinal center's axis of PCB120 and antenna module 100, in other words, extend along this center or longitudinal center's axis.In this example embodiment, the longitudinal centre line of PCB120 and antenna module 100 extends from front to back.In this example embodiment, when conductive structure or element 132 be positioned at or along the longitudinal centerline axis of PCB120 time, thus PCB116 departs from center or not along the longitudinal centerline axis of PCB120.With this demonstration mode, the width at the top of radome 156 can reduce and can manufacture narrower.

In alternate embodiments, conductive structure or element can not comprise projection 136.In this case, whole conductive structure can be general flat and plane, has the structure of tabular, and is parallel to AM/FM antenna PCB.Also in these Alternate embodiments, whole conductive structure or element can keep roughly being positioned at same plane or coplanar with them with AM/FM antenna PCB and upper trace 128 thereof.In other words, the whole conductive structure in these Alternate embodiments or element can remain in this plane, and not AM/FM antenna PCB and on the area of coverage of trace 128 or the protruding outside significant amount of width.

With reference to figure 3, conductive structure or element 132 are configured to (such as, formalize, be sized to) make slit or gap 144 be limited to conductive structure 132 front portion 148, between 152 and PCB116.Slit 144 can be configured to provide impedance matching and increase antenna element length to reduce centre frequency.Matched impedance can improve the power transimission of antenna module 100 substantially.

During use, conductive structure or element 132 operate the capacitive load portion forming AM/FM antenna 108.In addition, general plane or flat conductive structure or element 132 is used to allow to use radome, housing or the lid 156 (Fig. 1) with narrow or thin top.

In some exemplary embodiment, conductive coating can be arranged on the top of AM/FM antenna PCB116, for capacitive load AM/FM antenna 108.Such as, conductive coating can be arranged on AM/FM antenna PCB116, and conductive coating is positioned at below element 132 between PCB116 and element 132.Conductive coating can contribute to limiting capacitive load portion towards the top of AM/FM antenna PCB116.

AM/FM antenna 108 can operate under one or more frequency, the frequency range such as comprised at about 140KHz between about 110MHz etc.Such as, illustrated AM/FM antenna 108 can in FM frequency range (such as, frequency etc. between about 88MHz to about 108MHz) low-resonance, and can at AM operation at frequencies, but cannot at various AM frequency (frequency etc. such as, between about 535KHz to about 1735KHz) low-resonance.AM/FM antenna 108 when expecting such as by regulating the size of conductive structure 132, the size regulating the trace 128 be arranged on around PCB116 and/or quantity and/or orientation and/or type etc., and can also be adjusted to operate under desired frequency band.Such as, AM/FM antenna 108 can be adjusted (or readjusting) when expecting, extremely Japanese FM frequency (such as, comprise about 76MHz to the frequency etc. between about 93MHz), DAB-VHF-III (such as, comprising the frequency etc. between about 174MHz to about 240MHz), other similar VHF frequency range, other frequency ranges etc.

Second antenna 112 of diagram antenna module 100 is configured to global positioning system (GPS) (such as, being configured to receive expectation gps signal etc.).Second antenna 112 comprises the paster antenna 160 being attached to the 3rd PCB164.PCB164 is attached to base 104 at the position of the front portion towards base 104 by machanical fastener 124.Gps antenna 112 can operate under one or more expected frequency, the frequency range such as comprised at about 1.574MHz between about 1.576MHz etc.And, gps antenna 112 can also when expecting such as by changing dielectric material, change the size of the coats of metal used in gps antenna 112 etc. etc. and adjusted to operate under desired frequency band.

Electric connector (not shown) can be attached to PCB120 and 164, for (such as, by the opening 169 in the base 104 of Fig. 2, this opening aims at the opening etc. in the ceiling of vehicle) antenna module 100 is attached to proper communication circuit (such as, coaxal cable etc.) in mobile platform or vehicle.In like fashion, PCB120 and/or PCB164 can from corresponding antenna 108 and 112 Received signal strength input, and processing signals inputs, and the signal input after process is passed to suitable communication line.Alternatively, or in addition, PCB120 and/or PCB164 can be processed via or be inputted by the signal that corresponding antenna 108,112 transmits.By like this, it should be understood that antenna 108,112 can receive when expecting and/or transmit radio signal.Electric connector can be attached to PCB120,164 ISO (International Standards Organization) modular electrical connector or Automotive Standardization committee connector.Therefore, coaxal cable (or other suitable communication lines) relatively easily can be connected to electric connector, is used for the equipment be communicated to by the signal that AM/FM antenna 108 and gps antenna 120 receive in vehicle.In this embodiment, standard ISO electrical is used to connect device or Automotive Standardization committee connector can be allowed for reducing costs, compared to these antenna installed part needing Custom Design and processing for being electrically connected between antenna module 100 and cable.In addition, the plug-in type electrical connection between communication line and the electric connector of antenna module can be realized by installed part, and installed part does not need to carry out complicated path wiring or cloth cable by vehicle body wall.Therefore, plug-in type electrical connection can easily realize, and does not need setter to have any particular technology and/or skill operation.Except standard ISO electrical connects device, Automotive Standardization committee connector and coaxal cable, Alternate embodiments can comprise the electric connector and communication line (such as, feedthrough connector etc.) that use other types.

Radome 156 can the parts of antenna module 100 substantially in encapsulated antenna cover 156; thus guard block is not by the impact of the pollutant (such as, dust, moisture etc.) invaded in the inner space (interior enclosure) of radome 156.In addition, radome 156 can provide aesthstic pleasant appearance for antenna module 100, and can be configured with (such as, sizing has, setting has, be built with) aerodynamic configuration.In the illustrated embodiment, such as, radome 156 has aesthstic comfortable, aerodynamic shark fin type structure.But in other exemplary embodiment, antenna module can comprise radome, its structure is different from illustrated herein, such as, has the structure except shark fin type structure etc.Radome 156 can also be formed by the material of wide region, such as, such as, polymer, polyurethane, plastic material are (such as, the blend etc. of polycarbonate Alloys, polycarbonate acrylonitrile-butadiene-styrene-copolymer (PC/ABS)), GRP material, synthetic resin material, thermoplastic (such as, GE plastics resin etc.) etc., this is all in the scope of the present disclosure.

Radome 156 is configured to be arranged on the first and second antennas 108,112 and their corresponding PCB120,164.Radome 156 is configured to be secured to base 104.And base 104 is configured to be attached to vehicle body wall, such as, the ceiling etc. of automobile.Radome 156 can be secured to base 104 via any suitable operation, such as, snap fit connection, machanical fastener (such as, bolt, other fastening apparatus etc.), the connection of ultra-sonic welded, solvent welded, hot melt, clip, buckle, hook connection, integrated securing feature etc.In the illustrated embodiment shown in Fig. 1, radome 156 can be secured to base by bolt 168.Alternatively, radome 156 can be connected directly to vehicle body wall, and this is all in the scope of the present disclosure.

Base 104 can by be used for forming the similar material of radome 156 and formed.Such as, the material of base 104 can be formed by one or more alloys, such as, and kirsite etc.Alternatively, base 104 can be formed by plastics, forms by polymeric spray is molded, by steel and other materials (comprising composite material) by suitable shaping process (such as, die casting process etc.) and formed, this is all in the scope of the present disclosure.

Antenna module 100 also comprises clamp structure 172 (such as, there is the construction bolt etc. that is spirally connected of hex-shaped head), the first holding member 176 (such as, retaining clip etc.) and the second holding member 180 (such as, insulator folder etc.).Can use clamp structure 172 and retaining member 176,180 that antenna module is assembled to vehicle ceiling, hood, luggage case (such as, head top or do not hinder the visual field towards zenith etc.), the assembly surface of vehicle serves as the ground plane of antenna module 100, and improves the reception of signal.The improvement of relatively large-sized ground plane (such as, roof of the vehicle etc.) has the reception of substantially low-frequency radio signal.And compared to the operative wavelength of AM/FM antenna 108, large-sized ground plane can not be thought insignificant.

First holding member 176 comprises leg, and the second holding member 180 comprises the conical surface.The leg of the first holding member 176 is configured to the corresponding conical surface of contact second holding member 180.First and second holding members 176,180 also comprise the opening of aligning, the threaded openings that clamp structure 172 is screw-coupled in base 104 through opening.

Clamp structure 172 and holding member 176,180 allow antenna module 100 install and be assembled to vehicle body wall regularly.First clamp structure 172 and holding member 176,180 just can be assembled to base 104 before astronomical cycle is on vehicle.Then, antenna module 100 can (from vehicle outside) be located relative to the pilot hole vehicle body wall, makes clamp structure 172 and holding member 176,180 plugging in fitting hole (such as, being pulled through pilot hole etc. downwards).Then the outside of base 104 along vehicle body wall is arranged.Securing member 172 can be close from vehicle interior.In this stage of installation process, thus antenna module 100 can be held in appropriate location relative to the vehicle body wall being in the first installation site.

When by along roughly towards antenna substrate 104 direction drive clamp structure 172 make the first holding member 176 roughly towards pilot hole compressed movable time, the leg of the first holding member 176 can be out of shape and relative to pilot hole approximately towards outer expansion against side, cabin in vehicle body wall, thus antenna module 100 is secured to vehicle body wall and is in the second operation installation site.This installation process is only demonstration mode antenna module 100 being mounted to vehicle.In exemplary embodiment, also can use the mechanism of replacement, process and device that antenna module (such as, antenna module 100 etc.) is mounted to vehicle.

Antenna module 100 comprises containment member 184 (such as, O shape is enclosed, its be can elastic force compression high resiliency or foam washer, PORON micropore urethane foam packing ring etc.), containment member 184 is positioned between the ceiling (or other assembly surfaces) of base 104 and automobile.Containment member 184 can sealed base 104 be in ceiling substantially, and basic sealing pilot hole is in ceiling.Antenna module 100 also comprises containment member 188 (such as, O shape is enclosed, its be can elastic force compression high resiliency or foam washer, filler, sticker, other suitable filling or containment members etc.), containment member 188 is positioned between radome 156 and base 104, for basic encapsulated antenna cover 156 in base 104.In this example embodiment, containment member 188 can at least locally be placed in the groove that limits along base 104 or limited by base 104.

Antenna module 100 can also comprise one or more packing ring (not shown) of the bottom being attached to base 104.In operation, packing ring can contribute to guaranteeing base 104 to be connected to vehicle ceiling, and allows antenna module 100 to use different ceiling curvature.Packing ring can comprise conduction finger (such as, metal or metal spring finger etc.).In exemplary embodiment, packing ring comprises finger packing ring, such as can purchased from laird company.

Antenna module 100 is involving vibrations damping member (such as, foam pad, foam band etc.) further.Such as, as depicted in figs. 1 and 2, near foam pad 192,196 respective front that can be positioned at conductive structure or element 132 and rear portion.Foam pad 192,196 can contribute to keeping front and rear to be in appropriate location, and/or suppresses vibration during the vehicle of assembling antenna module 100 travels.

Fig. 9 illustrates another exemplary embodiment of the assembly 200 comprising at least one or more aspect of the present disclosure.As shown, antenna module 200 comprises radome, housing or the lid 256 be positioned at above AM/FM antenna 208, as shown in Figure 7.

As shown in Figure 7, the feature class that AM/FM antenna 208 can comprise is similar to the AM/FM antenna 108 shown in Fig. 1 to Fig. 7.Such as, AM/FM antenna 208 comprises PCB216, or is limited by PCB216.AM/FM antenna PCB216 is attached to PCB220.Conductive trace 228 (broadly, electric conductor) is arranged along the mid portion of AM/FM antenna PCB216, loads AM/FM antenna 208 for inductance.Conductive structure or element 232 (such as, high load capacity element or plate etc.) connect (such as, welding etc.) top to AM/FM antenna PCB216.In this example embodiment, conductive structure or element 232 are general flat and become plane with platy structure.As shown in Figure 9, this demonstration flat configuration of high load capacity element allows radome to have narrow better moulding (such as, aesthstic comfortable, aerodynamic shark fin type structure etc.).

By contrast, Fig. 8 illustrates AM/FM antenna 308, and it also comprises PCB316, or is limited by PCB316.AM/FM antenna PCB316 is attached to PCB320.Conductive trace 328 (broadly, electric conductor) is arranged along the mid portion of AM/FM antenna PCB316.PCB320 (Fig. 8) is greater than PCB220 (Fig. 7), because PCB320 is configured to support AM/FM antenna PCB316 and at least one cellular antenna (not shown).By contrast, in this example embodiment, PCB220 is configured to support AM/FM antenna PCB216, but does not support any cellular antenna.

Continue to comprise wide, non-flat, nonplanar high load capacity element 332 with reference to figure 8, AM/FM antenna 308.In addition, high load capacity element 332 can be screw-coupled to the inside of radome.The top that folder can be soldered to PCB316 with by PCB316 with element 332 conducting and be electrically connected.Compared to the radome 256 shown in Fig. 9, more greatly (such as, wider and higher) radome 356 (Figure 10) need for AM/FM antenna 308, this is width because high load capacity element 332 increases or the area of coverage and its mode connected with radome 356 and PCB316.

Build a sample canonical antenna module and test it, its feature class had is similar to the character pair of the antenna module 100 shown in Fig. 1.Figure 11 to Figure 19 provides the analysis result measured standard antenna assembly.Usually, these results illustrate antenna module and there is good AM/FM performance, although there is less overall dimension and more narrow profile compared to some existing antenna.There is provided these analysis results shown in Figure 11 to Figure 19, this is only for illustrative purpose instead of restriction object.Compare the structure that Figure 11 to Figure 19 shows, the Alternate embodiments of antenna module can construct by different way, has different operations or performance parameter.

Figure 11 is the line chart of AM (Modulation and Amplitude Modulation) relative gain, illustrate that signal strength signal intensity (decibel is unit) relative to reference levels (dBr) is to frequency (kilohertz KHz is unit), the AM/FM antenna element for sample canonical antenna module is measured on the circular ground of a rice diameter.As shown, sample canonical antenna module has good signal strength signal intensity for AM frequency, is-3.55 decibels under such as 792KHz, is-338 decibels, is-2.66 decibels under 1197KHz under 990KHz, and is-2.42 decibels under 1422KHz.Sample canonical antenna module also has the signal strength signal intensity-34.10 decibels exceeding more than reference levels one milliwatt (dBm) when 792KHz, is-28.10 decibels, is-39.31 decibels during 1197KHz during 990KHz, and is-41.72 decibels during 1422KHz.

Figure 12 is the line chart (corresponding data illustrates following form) of linear vertical mean F M gain, isotropism decibel (dBi) is to frequency (megahertz MHz is unit), and the AM/FM antenna element for sample canonical antenna module is measured on the circular ground of a rice diameter.As shown, whole FM (frequency modulation(FM)) frequency range of sample canonical antenna module between 88MHz to 108MHz has good linear gain.Because AM/FM antenna its upright position when antenna module is mounted to vehicle ceiling or other positions is substantially fixing, so vertical gain is important characteristic, because it represents the ability of AM/FM antenna substantially vertical from the beginning top Received signal strength.

Form 1

At the ground radiation pattern of the circular of a rice diameter under the frequency that the AM/FM antenna element that Figure 13 to Figure 19 illustrates the sample canonical antenna module shown in Fig. 1 and Fig. 2 is listed at above table 1.The linear averaging gain of Figure 13 to Figure 19 setting is also shown in Figure 12.

As disclosed herein, multiband car antenna assembly 100 comprises AM/FM antenna 108 and gps antenna 112.In replaceable exemplary embodiment, antenna module can only comprise AM/FM antenna (such as, 108 etc.), AM/FM antenna has and is attached to AM/FM antenna PCB (such as, 116 etc.) general plane on top or flat conductive structure or element are (such as, 132 etc.) any other antenna (such as, gps antenna 112 etc.), is not comprised.In other exemplary embodiment, antenna module can comprise AM/FM antenna (such as, 108 etc.) disclosed herein, except this gps antenna or in addition, also comprise one or more antenna.Such as, the exemplary embodiment of antenna module can comprise AM/FM antenna (such as, 108 etc.) disclosed herein and SDARS antenna (such as, paster antenna etc.), instead of gps antenna.Or such as, the exemplary embodiment of antenna module can comprise AM/FM antenna disclosed herein and GPS and SDARS paster antenna.GPS paster antenna can be stacked in the top of SDARS paster antenna, or be positioned to contiguous SDARS paster antenna or with SDARS paster antenna side by side.

Rely on further example, the exemplary embodiment of antenna module can be configured to be used as multiband multiple-input and multiple-output (MIMO) antenna module, via AM/FM antenna disclosed herein (such as, 108 etc.) can operate under AM/FM frequency range, and can in cellular communication, Wi-Fi, DSRC (dedicated short range communication), satellite-signal, operate under the association such as land signal other frequency ranges one or more, such as, the exemplary embodiment of antenna module can in AM frequency range, operation under one or more or any combinations in FM frequency range and following frequency range (or all): global positioning system (GPS), GLONASS (Global Navigation Satellite System) (GLONASS), Satellite Digital Audio Radio service (SDARS) (such as, SiriusXM satelline radio etc.), AMPS, GSM850, GSM900, PCS, GSM1800, GSM1900, AWS, UMTS, Digital Audio Radio (DAB)-VHF-III, DAB-L, Long Term Evolution (such as, 4G, 3G, other LTE generate, B17 (LTE), lTE (700MHz) etc.), Wi-Fi, Wi-Max, PCS, EBS (education broadband service), BRS (broadband radio service), WCS (broadband wireless communications service/Internet service), snail honeybee frequency band associate with one or more area of uniqueness or country or corresponding this area or national unique snail honeybee frequency band, one or more frequency band sees following form 2 and/or form 3 etc.

Form 2

System/frequency range explanation	Upper limiting frequency (MHz)	Lower frequency limit (MHz)
			700MHz frequency range	698	862
B17(LTE)	704	787
			AMPS/GSM850	824	894
GSM900(E-GSM)	880	960
			DCS1800/GSM1800	1710	1880
PCS/GSM1900	1850	1990
			W?CD?MA/UMTS	1920	2170
2.3GHz frequency range IMT expands	2300	2400
			IEEE802.11B/G	2400	2500
EBS/BRS	2496	2690
			WiIMAX?MMDS	2500	2690
Broadband radio	2700	2900
			Service/BRS (MMDS)	?	?
WI?MAX(3.5GHz)	3400	3600
			Public safety radio	4940	4990

Form 3

Therefore, disclosed herein is the exemplary embodiment of multiband car antenna assembly, it comprises connection (such as, welding etc.) to the general plane on the top of AM/FM antenna PCB or top or flat conductive structure or element.The multiband car antenna assembly existing compared to some, this exemplary embodiment can provide one or more (but not being must have or must have all) following advantage or interests.Such as, exemplary embodiment can comprise radome, housing or the lid with narrow or thin top, such as, by shown in the contrast of Fig. 9 and Figure 10.This allows again to reduce antenna module overall dimension or profile, and/or allows radome to have narrow better moulding (such as, aesthstic comfortable, aerodynamic shark fin type structure etc.).General plane or flat conductive structure or element can be the parts of relatively low cost, and/or can manufacture via relatively low cost and too not complicated process.Exemplary embodiment can have good electrical property, such as shown in Figure 11 to Figure 19.In exemplary embodiment, conductive structure or element can be welded onto the top of AM/FM printed circuit board (PCB), this can eliminate potential problems and/or eliminate to separate machine securing member (such as, bolt, folder etc.) needs, separate machine securing member can otherwise be used for high load capacity element attachment to radome and M/FMPCB.

In addition, various antenna modules (such as, 100 etc.) disclosed herein can be assembled to the supporting construction of wide region, comprise static platform and mobile platform.Such as, antenna module disclosed herein (such as, 100 etc.) can assemble to support these structures: bus, chain, aircraft, bicycle, motorcycle, ship and other mobile platforms.Therefore, should not be considered as limiting the scope of the present disclosure to the supporting construction of any particular type or environment to the embody rule of motor vehicle or automotive vehicle herein.

Provide exemplary embodiment, make the disclosure by transparent, will protection range be passed on completely to those skilled in the art.Indicate several detail, such as the example of concrete parts, equipment and method, to provide the thorough understanding of embodiment of the present disclosure.To one skilled in the art it is obvious that, detail do not need adopt, exemplary embodiment can be presented as many different forms, should not be considered as limit the scope of the present disclosure.In some exemplary embodiment, detailed known process, known device structure and known technology are not described.In addition, provide advantage and improvement that the one or more exemplary embodiment of the disclosure can realize, this is only illustrative purpose, do not limit the scope of the present disclosure, because exemplary embodiment disclosed herein can provide all above-mentioned advantage and the improvement mentioned or not have this advantage and improvement, this still falls in the scope of the present disclosure.

Concrete size disclosed herein, concrete material and/or concrete shape are examples in nature, do not limit the scope of the present disclosure.The particular value of given parameters and the particular range of value are not will get rid of to may be used for other values in one or more example disclosed herein and value scope.And, it is conceivable that, can the end points of limit value scope for any two particular values of design parameter of stating herein, they may be used for given parameters (that is, disclosed first value of given parameters and the second value can be considered as disclosing: can also adopt any value between the first and second values for given parameters).Such as, there is value A if parameter X enumerates herein and there is value Z, it is envisioned that the scope of value that parameter X can have is from about A to about Z.Similarly, it is envisioned that open (no matter these scopes intersect, overlap or different) of the two or more scope of the value of parameter presents all feasible combination of this value scope, requirement can be carried out with the end points of disclosure scope.Such as, if the scope that parameter X enumerates the value had herein is 1-10, or 2-9, or 3-8, be also contemplated that other value scopes that parameter X can have comprise 1-9,1-8,1-3,1-2,2-10,2-8,2-3,3-10 and 3-9.

Term used herein, only for describing the object of particular exemplary execution mode, is not intended to restriction.As used herein, singulative " " " " and " being somebody's turn to do " can also be intended to comprise plural form, except other modes of the clear instruction of non-content.Term " comprises " " comprising " " includes " and " having " comprises other, therefore point out the feature of existence explanation, classification, step, operation, element and/or parts, but do not get rid of other features one or more, classification, step, operation, element, parts and/or its existence of combining or interpolation.Method step described herein, process and operation are not considered as needing them to discuss or illustrated particular order feasibility, execution sequence unless specifically.Also understand, extra or replacement step can be adopted.

When element or layer be called " on another element or layer " " being engaged to " " be connected to " or " being attached to " another element or layer time, it can be located immediately on this another element or layer, engage, connect or be attached to this another element or layer, or intermediary element or layer can be there is.On the contrary, when element be called " directly on another element or layer " " being directly engaged to " " be connected directly to " or " being attached directly to " another element or layer time, intermediary element or layer can not be there is.Other wording describing relation between element should be explained in a similar manner (such as, " ... between " and " directly between .. ", " adjacent " and " direct neighbor " etc.).As used herein, term "and/or" comprises any of one or more linked list project and all combinations.

Term " approximately " represents that when being applied to value calculating or measurement allow there is some inaccuracy (exact value of proximity values a little; Approximate or quite close to this value; Almost this value).If based on some reasons, the inaccuracy provided by " approximately " is not understood to this usual implication in the art, and " approximately " so used herein represents in common survey method or use at least some in these parameters to change.Such as, term " roughly " " approximately " and " substantially " can be used, this means in manufacturing tolerance.Or, such as, term used herein " approximately " refers to quantitative variation when modifying the amount of component of the present utility model or reactant, the typical case used measures and handling procedure can cause this variation, such as, in these programs, having carelessness when manufacturing concentrate or solution in real world, manufacturing the manufacture of the component of concentrate or manner of execution, source or purity different; Etc..The difference amount that the different equilibrium conditions that term " approximately " also comprises the compound formed due to specific original mixture cause.Whether no matter modified by term " approximately ", claim includes the equivalent value of this amount.

Although term first, second, third, etc. can be used for describing various element, parts, region, layer and/or section, these elements, parts, region, layer and/or Duan Buying are limited by these terms.These terms only can be used for distinguish one element from another, parts, region, layer or section and another region, layer or section.Term such as " first " " second " and other quantity terms do not imply sequence or order when deployed, except the clear instruction of non-content.Thus, element discussed below, parts, region, layer or section can be written as the second element, parts, region, layer or section, and this does not exceed the instruction of exemplary embodiment.

Space relative terms, such as " interior " " outward " " under " " below " " low " " top " " on " etc., it is convenient with the relation describing an element or feature and another element or feature to may be used for illustrating, as illustrated.Space relative terms can be intended to comprise equipment in the different azimuth used or in operation, except the orientation shown in accompanying drawing.Such as, if equipment is inverted in figure, be described as other elements or feature " below " or " under " each element will be positioned at " top " of other elements or feature.Thus, example term " below " can comprise above and below these two orientation.Equipment can otherwise be located (90-degree rotation or be in other orientation), and respective explanations space used herein describes language relatively.

Provide the aforementioned explanation of execution mode for signal and illustration purpose.It is not intended to get rid of or the restriction disclosure.Each element, expection use or statement uses or the feature of particular implementation is not limited to this particular implementation usually, but in due course, can exchange with the execution mode selected, or be used in the execution mode of selection, even without illustrating particularly or describing.Also can change in every way.This change is not regarded as a departure from the disclosure, and all this amendments are intended to be included in the scope of the present disclosure.

Claims (21)

1. a car antenna assembly, this car antenna assembly is used for being mounted to vehicle body wall, and described car antenna assembly comprises and is configured for wireless first antenna of AM/FM, and it is characterized in that, described first antenna comprises:

First printed circuit board (PCB), this first printed circuit board (PCB) has the first side surface and the second opposed side surface;

Electric conductor, this electric conductor along described first printed circuit board (PCB) described first side surface and described second side surface extend; And

The planar structure of conduction, the planar structure of this conduction is attached to the top of described first printed circuit board (PCB).

2. car antenna assembly according to claim 1, is characterized in that:

The planar structure of described conduction is soldered to the described top of described first printed circuit board (PCB).

3. car antenna assembly according to claim 1, is characterized in that:

The planar structure of described conduction is roughly positioned at identical plane with described first printed circuit board (PCB) and described electric conductor.

4. car antenna assembly according to claim 1, is characterized in that:

The planar structure of described conduction comprises planar section and from described planar section projection outwardly; And

Described first printed circuit board (PCB) comprises the opening being configured to receive described projection wherein;

Thus, described projection is positioned in described opening contribute to by the planar structure of described conduction aim at and/or be retained to described first printed circuit board (PCB).

5. car antenna assembly according to claim 4, is characterized in that:

Planar structure entirety except described projection of described conduction is flat and plane, has the structure of tabular.

6. car antenna assembly according to claim 1, is characterized in that:

Described electric conductor is interconnected at least partially around described printed circuit board (PCB), thus set up continuous print power path at least partially around described in described printed circuit board (PCB), described electric conductor can operate the inductance loading unit limiting described first antenna thus, and the planar structure of described conduction can operate the capacitive load portion limiting described first antenna thus.

7. car antenna assembly according to claim 1, is characterized in that:

Described car antenna component structure is being inserted the pilot hole in vehicle body wall from vehicle outside and is installing after being clamped from side, interior cabin and be assembled to described vehicle body wall regularly.

8. car antenna assembly according to claim 1, is characterized in that:

The planar structure of described conduction is on the described top not using the situation lower link of machanical fastener or contact clip to described first printed circuit board (PCB).

9. car antenna assembly according to claim 1, is characterized in that:

The planar structure of described conduction and described first printed circuit board (PCB) and described electric conductor roughly coplanar.

10. car antenna assembly according to claim 1, is characterized in that:

The planar structure of described conduction is roughly positioned at the area of coverage limited by described first printed circuit board (PCB) and described electric conductor.

11. car antenna assemblies according to claim 1, is characterized in that:

The planar structure of described conduction comprises stamped sheet metal.

12. car antenna assemblies according to claim 4, is characterized in that:

The described planar section of the planar structure of described conduction is parallel to described first printed circuit board (PCB).

13. car antenna assemblies according to claim 4, is characterized in that:

Described protrusion engagement is contributed in described opening the planar structure of described conduction is aimed at and/or is retained to described first printed circuit board (PCB), thus be beneficial to the planar structure of described conduction is soldered to described first printed circuit board (PCB).

14. car antenna assemblies according to claim 4, is characterized in that:

The planar structure of described conduction comprises stamped sheet metal, and described stamped sheet metal has the folded part limiting described projection.

15. car antenna assemblies according to claim 1, is characterized in that:

Described electric conductor limits by along described first side surface of described first printed circuit board (PCB) and/or the trace of described second side surface.

16., according to car antenna assembly in any one of the preceding claims wherein, is characterized in that:

This car antenna assembly also comprises:

Base;

Radome, this radome is attached to described base, makes jointly to limit inner space by described radome and described base; And

Second antenna, this second antenna can operate being different from the wireless one or more frequency range of AM/FM;

Wherein, described first antenna and described second antenna are positioned at described inner space.

17. car antenna assemblies according to claim 16, is characterized in that:

The planar structure of described conduction is not directly attached to described radome.

18. car antenna assemblies according to claim 16, is characterized in that:

The planar structure of described conduction is soldered to the described top of described first printed circuit board (PCB) when not using any contact clip of the planar structure of this conduction being electrically connected to described first printed circuit board (PCB) and the planar structure of described conduction being directly attached to any machanical fastener of described radome.

19. car antenna assemblies according to claim 16, is characterized in that:

Described radome comprises shark fin type structure, and this shark fin type structure has the top being configured to the planar structure receiving described conduction.

20. car antenna assemblies according to claim 16, is characterized in that:

Described first printed circuit board (PCB) is attached to the second printed circuit board (PCB);

Described second antenna comprises the paster antenna being configured to operate receiving satellite signal;

Described paster antenna is attached to the 3rd printed circuit board (PCB); And

Described second printed circuit board (PCB) and described 3rd printed circuit board (PCB) are attached to described base.

21. car antenna assemblies according to claim 20, is characterized in that:

Described satellite-signal is global positioning system signal.