CN1190101C - Adjustable antenna for radio transceiver - Google Patents
Adjustable antenna for radio transceiver Download PDFInfo
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- CN1190101C CN1190101C CNB011214783A CN01121478A CN1190101C CN 1190101 C CN1190101 C CN 1190101C CN B011214783 A CNB011214783 A CN B011214783A CN 01121478 A CN01121478 A CN 01121478A CN 1190101 C CN1190101 C CN 1190101C
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Abstract
The present invention provides an adjustable antenna used for a radio receiving/transmitting device, which can generate electrical connection with a circuit used by a radio receiving/transmitting device, and the present invention comprises a radiation element, a grounding element and a signal line. The present invention is characterized in that at least one of the size of the radiation element, the size of the grounding element and the position of the signal feed-in point of the antenna is adjustable, so that the effect of finely adjusting the antenna characteristics is achieved.
Description
Technical field
The invention relates to a kind of antenna, be meant the adjustable antenna that a kind of radio transceiver uses especially, it can adjust frequency in good time, frequency range and impedance and so on antenna performance.
Background technology
Owing to use the wireless communication technique of electromagnetic wave transmitting signals, having does not in the use need stube cable can reach the effect of linking up with far end device, and has the advantage of being convenient to move, make and to utilize the product category of wireless communication technique various day by day, for example mobile phone, laptop, the radio receiver-transmitter of the intelligent appliance or the like of wireless communication function is provided.Aforementioned these equipment are owing to use the electromagnetic wave transmitting signals, are necessary device in the equipment of employing wireless mechanics of communication in order to the antenna of induced electricity magnetic wave therefore.At present antenna roughly can be divided into expose to the outer antenna of device with in be built in the antenna of device inside, and be subject to the shortcoming that foreign object collision produces bending, fractures with having owing to the exposed conveying appliance antenna can influence moulded attractive in appearance of device, so the in-building type antenna has become future trend.
As Fig. 1, be a kind of traditional in-building type antenna 1.This antenna 1 is a dull and stereotyped inverted F shaped antenna (PlanarInverted-F Antenna, PIFA), roughly have a rectangular plate shape radiant element 11 and a compartment of terrain and be positioned at the earth element 12 of these radiant element 11 belows, radiant element 11 is to be parallel to each other with earth element 12, and radiant element 11 more downward extension two conductive connecting pins 13,14, wherein a conductive connecting pin 13 is to be electrically connected to earth element 12 with as the ground connection pin, and another conductive connecting pin 14 is to pass earth element 12 and be suitable for being electrically connected to transceiving circuit (not shown) to make signal feed-in pin.So, when radiant element 11 is sensed the external electromagnetic ripple, then can see through signal feed-in pin 14 signal is imported the transceiving circuit, or the transceiving circuit also can make radiant element 11 send electric wave through this signal feed-in pin 14.
General in-building type antenna is of a size of dedicated fixed, and promptly it desires to insert in specific mechanism's environment, as laptop, then aims at and is suitable for the size that this mechanism's environment comes designing antenna.So; in this antenna is inserted other different institutions environment or former type design organization when change; environment around the antenna is changed and be different from its original special mechanism; the phenomenon that regular meeting allows characteristics such as antenna generation frequency drift or impedance do not match make a variation; and must redefine the Antenna Design size at new mechanism; with aforementioned dull and stereotyped inverted F shaped antenna 1; then may need the position that is provided with of the area of its radiant element 11 of change or earth element 12 or signal feed-in pin 14, just can make it can be in correct frequency work down.So, for the new mechanism product development, all need redesign antenna size and manufacturing each time, cause the Antenna Design research and development time to increase the shortcoming that increases with cost, and different type of machines uses the different size antenna to be difficult to reach the purpose that product is expected altogether, makes the antenna cost effectively to descend.
Yet, on the actual design, the designer is considering to adjust antenna size under frequency, impedance, three kinds of parameters of frequency range, and the adjustment of these three kinds of parameters can influence each other, so often at the different institutions environment, size only is to change a little, so adjustable if antenna is of a size of, then can allow the designer comply with it and need adjust antenna size, to need then can to avoid in the past the shortcoming of making the new size antenna again at different type of machines.
Summary of the invention
Therefore, a purpose of the present invention is promptly in that a kind of adjustable antenna for the radio receiver-transmitter use is provided, to reach the effect that antenna size can be adjusted according to need.
A further object of the present invention is promptly at the adjustable antenna that provides a kind of radio transceiver to use, to reach the effect that antenna performance can be revised with fine setting according to need.
Another purpose of the present invention promptly provides the adjustable antenna that a kind of radio transceiver uses, to reach the research and development time of saving Antenna Design and the effect of cost.
So, the adjustable antenna that radio transceiver of the present invention uses, this antenna can with the employed circuit of a radio receiver-transmitter produce electrically connect and comprise one by earth element that electric conducting material constituted and by a radiant element and a signal line that electric conducting material constituted, one end of this signal line can be connected with this radiant element, the other end then produces with the employed circuit of this radio receiver-transmitter and electrically connects, and at least one element is adjustable in the size of a direction in this earth element and this radiant element.
The invention provides the adjustable antenna that a kind of radio transceiver uses, this antenna can produce with the employed circuit of this radio receiver-transmitter and electrically connect, and this antenna comprises: an earth element is made of electric conducting material; One radiant element is made of electric conducting material; An and signal line, one end can be connected with this radiant element, the other end then produces with the employed circuit of this radio receiver-transmitter and electrically connects, wherein, this earth element has one first conduction lamellar body and and can be fixed in this first conduction second on lamellar body conduction lamellar body movably along a first direction; And/or this radiant element has one the 3rd conduction lamellar body and and can be fixed in the 3rd conduction the 4th on lamellar body conduction lamellar body movably along a second direction; And/or the described end of this signal line that is connected with this radiant element can produce relative displacement with this radiant element; Make this earth element the size on the first direction, this radiant element on second direction size and at least one in the relative position of the described end of this signal line and this radiant element be adjustable.
Description of drawings
Other features and advantages of the present invention in the detailed description of following cooperation preferred embodiment with reference to the accompanying drawings, can clearly be understood, in the accompanying drawings:
Fig. 1 is the schematic diagram of traditional antenna.
Fig. 2 is the schematic diagram of first preferred embodiment of the present invention.
Fig. 3 is the partial bottom view of the earth element of the present invention's first preferred embodiment.
Fig. 4 is to be another enforcement aspect figure of the radiant element of first preferred embodiment of the present invention.
Fig. 5 is the schematic diagram of second preferred embodiment of the present invention.
Fig. 6 is the schematic diagram of the 3rd preferred embodiment of the present invention.
Fig. 7 is the schematic diagram of the 4th preferred embodiment of the present invention.
Embodiment
The size of the use radiant element of frequency dependence in antenna of general antenna, frequency band then is relevant to the size of employed earth element in the antenna, the input and output impedance phase is electrically connected position (promptly referring to signal feed-in point) about FD feed pin and radiant element, and any one change in frequency, frequency band and the input and output impedance time can influence other both, makes being adjusted into of three influence each other.Therefore, in order to reach frequency, frequency band and input and output impedance for can adjust in good time, the present invention system make the radiant element of antenna be of a size of position that adjustable, earth element be of a size of adjustable, signal feed-in point for can change or radiant element, earth element and signal feed-in point in times the two or all be adjustable.When reading hereinafter disclosed several in-building type antennas, when being easier to understand the present invention in conjunction with notion of the present invention.
As Fig. 2, be the schematic diagram of first preferred embodiment of the present invention.Improvement is done at dull and stereotyped inverted F shaped antenna (PIFA) by this embodiment system.Antenna 2 in the present embodiment comprises an earth element 3, a radiant element 6 and a signal line 9.
Earth element 3 is in order to provide the effect of antenna 2 ground connection and to have one first conduction lamellar body 4 and one second conduction lamellar body 5.In the present embodiment, first and second conduction lamellar body 4,5 is all the rectangle lamellar body that conductive material constitutes.
The first conduction lamellar body 4 has two relative short first sides 41,42 and two growing to second side 43,44 of being positioned at two first sides 41,42 and being parallel to each other, and definition and second side 43,44 parallel directions are first direction, in present embodiment first direction for long to (arrow A in as figure).An end of contiguous first side 42 is provided with a primary importance adjusting device 45 along first direction in the first conduction lamellar body 4.In the present embodiment, primary importance adjusting device 45 most hole clippings 451 of two rows of comprising respectively along two second sides 43,44 and being parallel to each other.
The second conduction lamellar body 5 also has two relatively and short three side 51,52 parallel with first side 41,42 and between two the 3rd sides 51,52 and parallel with second side 43,44 two long to four side 53,54.In the lump with reference to Fig. 3, the second conduction lamellar body 5 in the second conduction lamellar body 5, is provided with second adjusting device 55 that can combine separably with primary importance adjusting device 45 on the end of the 3rd side 51 of the contiguous first conduction lamellar body 4, so that can be fixed in the side 42 of the first conduction lamellar body 4 movably along this first direction.In the present embodiment, second place adjusting device 55 is all right one way or the other corresponding respectively grabs 551 that are placed in two row's hole clippings 451 that protruded out by second lower surface 56 that conducts electricity lamellar body 5.
Whereby, as Fig. 2, during assembling, the lower surface 56 of the second conduction lamellar body 5 can be stacked and placed on the upper surface 46 of the first conduction lamellar body 4 and two grabs 51 of second place adjusting device 55 are placed in the primary importance adjusting device 45 suitably in the hole clipping 451, with form mutual interference make second the conduction lamellar body 5 be positioned first the conduction lamellar body 4 on, and be in contact with one another whereby make first and second the conduction lamellar body 4,5 electrically connect mutually.And it is errorless in order to ensure electric current at the first conduction lamellar body 4 and 5 circulations of the second conduction lamellar body, so be connected the second conduction lamellar body 5 when the first conduction lamellar body 4, can make grab 551 pass hole clipping 451 as far as possible and fit tightly till the upper surface 46 of the first conduction lamellar body 4 until the lower surface 56 of the second conduction lamellar body 5.Moreover, because the electric connection that the first conduction lamellar body 4 and the second conduction lamellar body are 5, make both can be considered one, so can utilize the grab 551 of adjusting the second conduction lamellar body 5 to be connected in two row's hole clippings 451 in the different hole clippings, adjust first side 42 area outward that the second conduction lamellar body 5 extends the first conduction lamellar body 4, and then adjust the integral ground effective area (promptly refer to the first conduction lamellar body 4 add up the second conduction lamellar body 5 extend the outer area of the first conduction lamellar body 4) of earth element 3, and along with the variation of ground connection effective area, then the impedance of antenna 2 and frequency range also change thereupon, to be located at predetermined impedance and frequency range, for instance, if when using bluetooth communication (Bluetooth), then predetermined frequency range can be 2.4GHz-2.5GHz.Along with the variation of ground connection effective area, also can impact other characteristics of antenna 2 such as frequency, input and output impedance.It should be noted, the position that the second conduction lamellar body 5 is assembled in the first conduction lamellar body 4 should not be subject to disclosed in the present embodiment, also can be assembled in the lower surface 47 of the first conduction lamellar body 4 as the second conduction lamellar body 5, and the structure of primary importance adjusting device 45 and second place adjusting device 55 also should not be subject to disclosed for illustrative purposes person in the present embodiment, but can reach earth element 3 can be got final product in the effect that a direction (as the first direction of the arrow A among Fig. 2) goes up flexible size.
It is parallel with first side 41,42 that the 3rd conduction lamellar body 7 has two relative short the 5th sides 71,72, and two relative length to the 6th side the 73, the 74th, between two the 5th sides 71,72 and be parallel to second side 43,44, and define the second direction of parallel the 6th side 73,74.In the present embodiment, the first direction of the second direction of radiant element 6 and earth element 3 is an equidirectional, promptly is all the direction of arrow A among Fig. 2.And more downward extension one leg 70 makes radiant element 6 be electrically connected to earth element 3 through this leg 70 and comes ground connection to connect to the upper surface 46 of the first conduction lamellar body 4 of earth element 3 on the 5th side 71 of the 3rd conduction lamellar body 7.More be provided with the 3rd position regulator 75 along second direction (being arrow A) setting on the end of contiguous another the 5th side 72 in the 3rd conduction lamellar body 7.The 3rd location means 75 in the present embodiment is respectively along two the 6th sides 73,74 and most hole clippings 751 of two rows of being parallel to each other.
The 4th conduction lamellar body 8 also has two relatively and the heptalateral limit 81,82 of parallel the 5th sides 71,72 and two the 8th sides 83,84 of parallel the 6th side 73,74 also between two heptalateral limits 81,82.Moreover an end on the heptalateral limit 81 of contiguous the 3rd lamellar body 7 is provided with the 4th position regulator 85 that combines with the 3rd position regulator 75 separably in the 4th conduction lamellar body 8.In the present embodiment, the 4th position regulator 85 is two grabs 851 that are suitable for being placed in the hole clipping 751 of the 3rd position regulator 75 that lower surface 86 by the 4th conduction lamellar body 8 extends.
Whereby, the 4th the conduction lamellar body 8 be stacked and placed on the 3rd the conduction lamellar body 7 upper surface 76 on and can by two grabs 851 be connected in the 3rd the conduction lamellar body 7 suitable hole clipping 751 in fix in the 3rd the conduction lamellar body 7 on, and being in contact with one another owing to grab 851 and hole clipping 751, make to electrically connect between the 3rd conduction lamellar body 7 and the 4th conduction lamellar body 8, and make both can be considered the radiant element 6 of one.At this embodiment, as Fig. 2, errorless in order to ensure electric current in the 3rd conduction lamellar body 7 and 8 circulations of the 4th conduction lamellar body, so be connected the 4th the conduction lamellar body 8 in the 3rd the conduction lamellar body 7 the 5th side 72 on the time, can make grab 851 pass as far as possible hole clipping 751 until the 4th the conduction lamellar body 8 lower surface 86 fit in the 3rd the conduction lamellar body 7 upper surface 76 till.Whereby, because the 3rd and the 4th electric connection of conduction between the lamellar body 7,8,, radiant element 6 whole effective areas add that the 4th conduction lamellar body 8 extends the area outside the 5th side 72 of the 3rd conduction lamellar body 7 so promptly equaling the 3rd conduction lamellar body 7.So can utilize in the hole clipping 751 of diverse location in the 3rd position regulator 75 of two grabs, 851 buckles the 3rd conduction lamellar body 7 of the 4th conduction lamellar body 8, the size of radiant element 6 can be stretched in second direction (direction of arrow A in as figure), and then make the effective area of radiant element 6 change thereupon, adjusting antenna frequencies, and can influence other characteristics of antenna 2 such as frequency band, input and output impedance variation to predetermined value in preset frequency.Preset frequency then can be the assigned frequency of the mechanics of communication that desire uses, and for instance, if when using bluetooth communication (Bluetooth) technology, then preset frequency is 2.45GHz.It should be noted, the 4th conduction lamellar body 8 is assembled in the 3rd conduction lamellar body 7 positions and should be subject to disclosed in the present embodiment, for example the 4th conduction lamellar body 8 also can be assembled in the lower surface 77 of the 3rd conduction lamellar body 7, and the structure of the 3rd position regulator 75 and the 4th position regulator 85 also should not be subject in the present embodiment disclosed for illustrative purposes, but the 4th conduction lamellar body 8 can be connected in a side (as the 5th side 72) of the 3rd conduction lamellar body 7 along a direction (as second direction) with go up adjusting, and the size that reaches radiant element 8 can get final product in the flexible effect of a direction.
One end of this signal line 9 is a conduction leg 91, be electrical isolation pass earth element 3 and electrically connect this radiant element 6, and other end system is electrically connected to the employed transceiving circuit of radio receiver-transmitter (not shown), the transceiving circuit can be electrically connected, to utilize radiant element 6 to receive or to launch electric wave with radiant element 6.In this embodiment, signal line 9 can be a coaxial cable, roughly comprise the insulating barrier of a core heart lead, this core heart lead of coating, a coated insulation layer also coats ground plane for the ground plane of conductive material and insulating coating, and electrically connect radiant element 6 and transceiving circuit with core heart lead, be electrically connected to earth element 3 with ground plane.In order to make signal line 9 electrically connect the position (promptly referring to signal feed-in point) of radiant element 6 for adjusting, the signal feed-in point of radiant element 6 is provided with the 5th position regulator 78 that extends along second direction (as the direction of arrow A), forms separable the 6th position regulator 913 that combines with the 5th position regulator 78 with connecting to an end 911 of radiant element 6 at conduction leg 91.In the present embodiment, as Fig. 2, the 5th position regulator 78 lies in a lamellar body that extends on the 6th side 73 of the 3rd conduction lamellar body 7 downwards, have most hole clippings 781 of extending on this lamellar body 78, and to be arranged in the 6th position regulator 913 on the end 911 of conduction leg 91 be the grab 913 that is suitable for being connected in the hole clipping 781 of the 5th position regulator 78 along second direction (as the direction of arrow A).In addition, in order to make conduction leg 91 pass earth element 3 and not to be in contact with it and electrical isolation, so offer in the direction of arrow A a lengthwise perforation 48 in the positions of the corresponding conduction of the first conduction lamellar body 4 legs 91 of earth element 3, and make this perforation 48 have enough length, can in perforation 48, move the hole clipping 781 that is snapped in diverse location and do not contact for conduction leg 91 with earth element 3.So, because the grab 931 of conduction leg 91 can be snapped in the 5th position regulator 78 in the different hole clippings 781 according to need, make the position of signal feed-in point (leg 91 that promptly conducts electricity electrically connects radiant element 6) to adjust according to need, input and output impedance with adjustment antenna 2 is a particular value, and this particular value can be 50 ohm (Ω).Because the general signal feed-in point of adjusting also can exert an influence to other characteristics of antenna such as frequency, frequency band, adjust signal feed-in point and change other characteristics of antenna in predetermined value so also can utilize.
According to aforementioned, present embodiment can utilize the size (being effective area) of adjusting radiant element 6 to put in order frequency, adjust the size (being effective area) of earth element 3 and adjust frequency band, adjust the input and output impedance with the position of adjusting signal feed-in point, and among the three during arbitrary adjustment, all can exert an influence to antenna characteristics (frequency, frequency range and input and output impedance), and owing to can utilize simultaneously in the present embodiment and adjust earth element 3 and finely tune with the position of change signal feed-in point, so more can enlarge the fine-tuning scope of antenna 2 with the size of radiant element 6.Whereby, when the antenna of present embodiment is placed in the different institutions environment and produces frequency drift or impedance not during reciprocity situation, can utilize present embodiment to finely tune antenna characteristics, not make the antenna of new size again in response to the different institutions environment and need not redefine antenna size.
Moreover, as Fig. 4, the 4th conduction lamellar body 8a also can be a fan-shaped lamellar body that is articulated on the 5th side 72a of the 3rd conduction lamellar body 7a, and the 3rd position regulator 75a that makes the 3rd conduction lamellar body 7a cooperates the shape of the 4th conduction lamellar body 8a and be most hole clipping 751a that lay along camber line, so that the 4th position regulator 85a of the 4th conduction lamellar body 8a one can be snapped in the grab in the hole clipping 751a, so can be snapped in the size that different hole clipping 751a change radiant element 6 by grab 85a.Therefore, the insider is when knowing, the earth element 3 of antenna 2 should not be subject to this with the shape of radiant element 6
Person disclosed in the embodiment.
As Fig. 5, be the schematic diagram of the second embodiment of the present invention.Improvement is done at one pole (monopole) antenna by this embodiment system.This kind antenna 2 ' radiant element 6 ' be upright (as the direction of arrow B among the figure) conduction lamellar body, and earth element 3 ' be positioned at radiant element 6 ' the below not with radiant element 6 ' be electrically connected and horizontally disposed conduction plate body, and signal line 9 ' an end be electrical isolation pass earth element 3 ' and electrically connect radiant element 6 ' an end 611 ', and the other end is to be electrically connected to transceiving circuit (not shown).In the present embodiment, this signal line 9 ' be a coaxial cable, with its core heart lead 91 ' electric connection radiant element 6 ' with the transceiving circuit, ground plane 92 ' electric connection earth element 3 '.Present embodiment is different with previous embodiment to be in only making radiant element 6 ' be of a size of telescopically, thus radiant element 6 ' also comprise one the 3rd conduction lamellar body 61 ' with one the 4th conduct electricity lamellar body 62 '.The 3rd conduction lamellar body 61 away from be connected signal line 9 ' an end 612 ' on more be provided with the 3rd position regulator 614 that a row extends most hole clippings 613 ' constituted in the direction of arrow B ', with the 4th conduction lamellar body 62 ' on be provided with a grab 621 that is snapped in hole clipping 613 ' interior separably '.Whereby, can utilize adjust the 4th conduction lamellar body 62 ' grab 621 ' be connected in the 3rd conduction lamellar body 61 ' the 3rd position regulator 614 ' in different hole clippings 613 ' in, adjust radiating element of antenna 6 ' resonant size (being effective area), and then the frequency of adjusting antenna with influence frequency band and input and output impedance variation.Certainly, the unipole antenna 2 in the present embodiment ' earth element 3 ' also can be according to the mode that discloses among aforementioned first embodiment, with mechanically varying sized and become fine-tuning, with in good time fine setting antenna performance.
As Fig. 6, be the third embodiment of the present invention.Improvement is done at a dipole (dipole) antenna by this embodiment system, this antenna 2 " first radiant element 6 " and second radiant element 3 " for difference in height is arranged level is arranged side by side; first radiant element 6 " an end 60 " is the top that the compartment of terrain is positioned at second radiant element 3 " an end 30 "; and be electrically connected to the end 60 of end 30 " and being electrically connected to first radiant element 6 " of the signal line 9 " being to pass second radiant element 3 " of transceiving circuit (not shown) ", and this signal line 9 " though passing second radiant element 3 " not with its electric connection.Signal line 9 in the present embodiment, and " also be a coaxial cable, also the core heart lead 91 with it " electrically connects radiant element 6 " and the transceiving circuit, and ground plane 92 " is electrically connected to second radiant element 3 ".The insider, unipole antenna 2 in knowing aforementioned second embodiment ' earth element 3 ', reflection method (method ofimage) according to electromagnetic theory, system in order to unipole antenna 2 ' radiant element 6 ' generation one one pole reflection (monopoleimage), make unipole antenna 2 ' radiant element 6 ' video with its one pole that both have similar dipole antenna 2 " radiant element; Thereby the dipole antenna in the present embodiment 2 " first radiant element 6 " is real take off before can be considered unipole antenna 2 ' radiant element 6 ', and second radiant element 3 " take off before real can be considered unipole antenna 2 ' earth element 3 ' variant.Meaning promptly, before take off unipole antenna 2 ' with the dipole antenna 2 of present embodiment " only execution mode is different; its rationale there is no difference, cover both all have a radiant element (promptly refer to unipole antenna 2 ' radiant element 6 and dipole antenna 2 " first radiant element 6 ") and an earth element (promptly refer to unipole antenna 2 ' earth element 3 ' and dipole antenna 2 " second radiant element 3 ").Moreover, in the present embodiment, system is of a size of adjustably first radiant element 6 " with second radiant element 3 ", so second radiant element 3 " being " and one second lamellar body 32 " institute constitutes; in an end 311 of first lamellar body 31 " away from first radiant element 6 " " on the most individual hole clippings 312 of two rows that along continuous straight runs (direction that promptly refers to arrow C among the figure) extends and is parallel to each other are set "; with formation primary importance adjusting device 313 " by one first lamellar body 3, and at two grabs 321 of the second conduction lamellar body 32 " go up formation be incorporated into primary importance adjusting device 313 separably " in " (promptly referring to second place adjusting device); so can utilize the second conduction lamellar body 32 " second place adjusting device 321 " to be connected in different hole clippings 312 in the first conduction lamellar body 31 " primary importance adjusting device 313 " ", make second radiant element 3 " size can go up in horizontal direction (direction of arrow C in as figure) flexible, to change second radiant element 3 " effective area.Moreover, first radiant element 6 " also by one the 3rd conduction lamellar body 61 " and one the 4th conduction lamellar body 62 "; an end 611 of the first conduction lamellar body 61 " away from second radiant element 3 " " go up and form most the hole clippings 612 of extending " formation the 3rd position regulator 613 " by two row's along continuous straight runs (as the arrow C direction), and the grab 621 " (referring to the 4th position regulator); so by the 3rd and the 4th position regulator 613 " in the 4th conduction lamellar body 62 " on form all right one way or the other hole clipping 612 that is snapped in ", 621 " cooperation; make the 4th conduction lamellar body 62 " be fixed in movably the 3rd conduction lamellar body 61 " go up and can utilize grab 621 to be snapped in the 3rd position regulator 613 " different hole clippings 612 ", adjust first radiant element 6 " size.Thereby, can adjust the size of first radiant element 6 " with second radiant element 3 " in the present embodiment, and then adjust antenna 2 " frequency and frequency band and influence the input and output impedance variation.
As Fig. 7, be the fourth embodiment of the present invention.The aerial system of this embodiment is done improvement at open flume type (slot) antenna, this slot type antenna 2b is a long rectangular conductive lamellar body, and offer on this lamellar body 2b one along the length of lamellar body to the long rectangle that the extends 21b that slots, on single lamellar body, roughly to be separated out an earth element 3b who comprises the remainder (repeating later on) of the radiant element 6b of the 21b that slots and lamellar body 2b.This fluting 21b has two and grows relatively to side 211b, 212b and two at long two short side 213b, 214b between side 211b, 212b, and the length that defines parallel fluting 21b among this antenna 2b is a third direction (direction of arrow D in as figure) to the direction of side 211b, 212b, is that a four directions is to (direction of arrow E in as figure) with the direction of short side 213b, the 214b of parallel fluting 21b.Earth element 3b means the long rectangular area to side 212b of the fluting 21b in the lamellar body 2b.The signal line 9b of this antenna 2b is a coaxial cable also, and its ground plane 91b is electrically connected to grow on side 212b in abutting connection with one of earth element 3b among the fluting 21b, and core heart lead 92b system is electrically connected to another length on side 211b, to electrically connect antenna 2b and transceiving circuit.In the present embodiment, for the effective area that makes earth element 3b can be adjusted, lie in the two opposite sides 31b of earth element 3b, 32b is provided with most the hole clipping 331b of two rows that are parallel to each other and extend to (as the direction of arrow E) along the four directions respectively, to form primary importance adjusting device 33b, and this earth element 3b more comprises one second conduction lamellar body 5b, have by the formed second place adjusting device of the two grab 511b 51b in the hole clipping 331b that is suitable for being snapped in primary importance adjusting device 33b, to utilize the primary importance adjusting device 33b and the second adjusting device 51b that the second conduction lamellar body 5b can be moved to (as the direction of arrow E) along the four directions, adjusting the ground connection effective area of this antenna 2b, and then the frequency range and other characteristics such as the frequency that influence antenna 2b of fine setting antenna 2b, the input and output impedance.In this kind antenna 2b, can utilize the size of adjusting fluting 21b, change the effective area (area around the 21b that promptly refers to slot) of radiant element 6b, with the frequency of adjusting antenna and influence other antenna performances and change.Thereby, in order to adjust fluting 21b size, thereby two long in fluting 21b to side 211b, extend most hole clipping 221b of two rows along third direction (direction that promptly refers to arrow D) respectively on the end of the contiguous short side 214b of 212b, to form the 3rd position regulator 22b, and this radiant element 6b more comprises one the 4th conduction lamellar body 8b, and this 4th conduction lamellar body 8b is provided with the 4th position regulator 81b that is incorporated into the 3rd position regulator 22b separably, this the 4th position regulator 81b is for being friction tight two grab 811b with hole clipping 221b, so can utilize the card 811b of the 4th position regulator 81b to be snapped in the different hole clipping 221b of the 3rd position regulator 22b, make the 4th conduction lamellar body 8b can cover the different big fraction area of fluting 21b, with the size that changes fluting 21b and the radiation effective area that is positioned at around the fluting 21b, and then the frequency that changes this antenna 2b and other characteristic variations that influence antenna 2b, as input and output impedance and frequency range.In the present embodiment, position for the fine adjustment signal load point, so the core heart lead 92b of this signal line 9b system is electrically connected to the end 931b of a conduction leg 93b earlier, and connect long on side 211b to fluting 21b adjustably with this other end 932b that conducts electricity leg 93b, arrange most hole clipping 231b that extend along third direction (as the direction of arrow D) and offer one in this long position that on side 211b, connects conduction leg 93b, to form one the 5th position regulator 23b, and the 6th position regulator 933b that is fixed in the 5th position regulator 23b in the last formation one of the other end 932b of conduction leg 93b separably, this the 6th position regulator 933b system can closely be snapped in the interior grab of hole clipping 231b of the 5th position regulator 23b, so can be connected in different hole clipping 231b by the grab 933b that adjusts conduction leg 93b, make the position change of signal feed-in point, and then adjust the input and output impedance and other characteristic variations that influence antenna 2b of antenna 2b.
Conclude above-mentionedly, the present invention has the following advantages really:
1. the size of antenna can need be adjusted according to the user:
Radiant element and earth element are fixed dimension in different traditional in-building type antenna, in this case, can utilize size, the size of earth element or the position of signal feed-in point of adjusting radiant element, changing frequency, frequency band and the input and output impedance of antenna, and then to reach antenna characteristics be the effect that can need finely tune according to the user.
2. shorten the research and development time and reduce cost:
When antenna of the present invention is inserted the different institutions environment, only needing to finely tune antenna performance by the position that changes antenna size or change signal feed-in point gets final product, and do not need need redefine the antenna that antenna size is made new size again as traditional antenna, reaching the purpose that product is expected altogether, and then can reach and shorten antenna research and development time and the effect that reduces cost.
The above only is preferred embodiment of the present invention, can not limit scope of the invention process with this, and promptly all simple equivalent of being done according to claim scope of the present invention and description of the invention content change and modify, and all should belong to the scope that patent of the present invention contains.The element numbers contrast
2,2 ', 2 ", 2b antenna 3,3 ', the 3b earth element
3 " second radiating element/earth element
30 " end 4,31 of earth element " first conduction lamellar body
The both sides of 31b, 32b earth element
311 " end of the first conduction lamellar body
41, the first side of 42 first conduction lamellar bodies
43, the second side of 44 first conduction lamellar bodies
45,313 ", 33b primary importance adjusting device
451,312 ", 331b hole clipping
The upper surface of 46 first conduction lamellar bodies
The lower surface of 47 first conduction lamellar bodies
48 perforation
5,32 ", the 5b second conduction lamellar body
51, the 3rd side of 52 second conduction lamellar bodies
53, the four side of 54 second conduction lamellar bodies
55,321 ", 51b second place adjusting device
551,321 ", 511b grab
The lower surface of 56 second conduction lamellar bodies
6,6 ', the 6b radiant element
6 " first radiant element/radiant element
60 " end of radiant element
7,7a, 61 ' the 3rd conduction lamellar body
The leg of 70 the 3rd conduction lamellar bodies
One end of 611 ' radiant element
612 ', 611 " the 3rd the conduction lamellar body ends
71,72, the 5th side of 72a the 3rd conduction lamellar body
73, the 6th side of 74 the 3rd conduction lamellar bodies
75,75a, 614 ', 613 ", 22b the 3rd position regulator
751,751a, 613 ', 612 ", the 221b hole clipping
The upper surface of 76 the 3rd conduction lamellar bodies
The lower surface of 77 the 3rd conduction lamellar bodies
78,23b the 5th position regulator
781,231b hole clipping
8,8a, 8 ", 62 ', 62 ", 8b the 4th conduction lamellar body
81, the heptalateral limit of 82 the 4th conduction lamellar bodies
83, the 8th side of 84 the 4th conduction lamellar bodies
85,85a, 621 ', 621 ", 81b the 4th position regulator
851,811b grab
The lower surface of 86 the 4th conduction lamellar bodies
The 21b fluting
The length of 211b, 212b fluting is to side
The short side of 213b, 214b fluting
9,9 ', 9 ", 9b signal line 91,93b conduct electricity leg
911, an end of 931b, 932b conduction leg
913,933b the 6th position regulator/grab
92 ', 92 ", the 91b ground plane
91 ', 91 ", 92b core heart lead
Claims (12)
1. the adjustable antenna that uses of a radio transceiver, this antenna can produce with the employed circuit of this radio receiver-transmitter and electrically connect, and this antenna comprises:
One earth element is made of electric conducting material;
One radiant element is made of electric conducting material; And
One signal line, an end can be connected with this radiant element, and the other end then produces with the employed circuit of this radio receiver-transmitter and electrically connects,
Wherein, this earth element has one first conduction lamellar body and and can be fixed in this first conduction second on lamellar body conduction lamellar body movably along a first direction;
This radiant element has one the 3rd conduction lamellar body and can be fixed in the 3rd conduction the 4th on lamellar body conduction lamellar body movably along a second direction;
The described end of this signal line that is connected with this radiant element can produce relative displacement with this radiant element;
Make this earth element the size on the first direction, this radiant element on second direction size and at least one in the relative position of the described end of this signal line and this radiant element be adjustable.
2. the adjustable antenna that radio transceiver as claimed in claim 1 uses, wherein, be provided with a primary importance adjusting device for this first direction of side upper edge of fixing this second conduction lamellar body in the first conduction lamellar body of this earth element, and this second conduction lamellar body is provided with a second place adjusting device that can combine separably with this primary importance adjusting device, makes this second conduction lamellar body can be fixed in the side of this second conduction lamellar body along this first direction movably.
3. the adjustable antenna that radio transceiver as claimed in claim 2 uses, wherein, this primary importance adjusting device comprises at least one hole clipping that is provided with along first direction, and this second place adjusting device comprises at least one grab, is can be placed in to form mutual interference in this hole clipping and with this hole clipping and locate.
4. the adjustable antenna that radio transceiver as claimed in claim 1 uses, wherein, be provided with one the 3rd position regulator for this second direction of side upper edge of fixing the 4th conduction lamellar body in the 3rd conduction lamellar body of this radiant element, and the 4th conduction lamellar body is provided with one the 4th position regulator that can combine separably with the 3rd position regulator, makes the 4th conduction lamellar body can be fixed in the side of the 3rd conduction lamellar body along this second direction movably.
5. the adjustable antenna that radio transceiver as claimed in claim 4 uses, wherein, the 3rd position regulator comprises at least one hole clipping that is provided with along second direction, and the 4th position regulator comprise at least one grab, be can be placed in this hole clipping and form mutual interference with this hole clipping and locate.
6. the adjustable antenna that radio transceiver as claimed in claim 1 uses, wherein, connect in this signal line to the described end of this radiant element be one the conduction leg, at least one side along this radiant element around this radiant element is provided with one the 5th position regulator, be provided with one the 6th position regulator that can combine separably with the 5th position regulator with the free end of this conduction leg, make this conduction leg be fixed in this radiant element movably along the direction of at least one side of this radiant element.
7. the adjustable antenna that radio transceiver as claimed in claim 6 uses, wherein, the 5th position regulator comprises at least one row several hole clippings along at least one side setting of this radiant element, comprising at least one grab with the 6th position regulator, is can be placed in this hole clipping and form mutual interference with this hole clipping and locate.
8. the adjustable antenna that radio transceiver as claimed in claim 1 uses, wherein, this radiant element is the side that the compartment of terrain is positioned at this earth element.
9. the adjustable antenna that uses as claim 1 or 8 described radio transceivers, wherein, this radiant element is positioned at a side of this earth element at interval and in parallel, and an end of this radiant element system and this earth element electric connection, to form a dull and stereotyped inverted F shaped antenna.
10. the adjustable antenna that radio transceiver as claimed in claim 9 uses, wherein, the end of this radiant element system extends a leg and contacts with this earth element, so that this radiant element and this earth element electrically connect.
11. the adjustable antenna that radio transceiver as claimed in claim 1 uses, wherein, this radiant element has a fluting, and a side-line of this radiant element is connected this earth element, to form a slot type antenna.
12. adjustable antenna as claim 1 or 8 or 11 described radio transceivers uses, wherein, this signal linear system is shaft cable and have a core heart lead and electrical isolation ground coats this core heart lead and is the ground plane of conductive material together, and this core heart lead system electrically connects this radiant element and the employed circuit of this radio receiver-transmitter, and these ground connection series of strata electrically connect this earth element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011214783A CN1190101C (en) | 2001-06-12 | 2001-06-12 | Adjustable antenna for radio transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011214783A CN1190101C (en) | 2001-06-12 | 2001-06-12 | Adjustable antenna for radio transceiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1391416A CN1391416A (en) | 2003-01-15 |
| CN1190101C true CN1190101C (en) | 2005-02-16 |
Family
ID=4664480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011214783A Expired - Lifetime CN1190101C (en) | 2001-06-12 | 2001-06-12 | Adjustable antenna for radio transceiver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1190101C (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076075A1 (en) * | 2009-12-24 | 2011-06-30 | 华为终端有限公司 | Reconfigurable mobile phone built-in antenna and implementation method thereof |
| CN104183917A (en) * | 2014-08-26 | 2014-12-03 | 南京濠暻通讯科技有限公司 | Probe side-fed microstrip antenna |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102881984B (en) * | 2012-09-24 | 2014-09-10 | 南京邮电大学 | Directional antenna with slide tuning unit |
| US10122402B2 (en) | 2012-12-31 | 2018-11-06 | Futurewei Technologies, Inc. | Method and apparatus for a tunable antenna |
| KR102447757B1 (en) * | 2015-11-06 | 2022-09-27 | 삼성전자주식회사 | Antenna and electronic device having the same |
| TWI816134B (en) | 2021-06-09 | 2023-09-21 | 財團法人工業技術研究院 | Antenna module |
| CN115986379B (en) * | 2023-02-23 | 2023-06-06 | 苏州浪潮智能科技有限公司 | Planar antenna and wireless communication equipment |
-
2001
- 2001-06-12 CN CNB011214783A patent/CN1190101C/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011076075A1 (en) * | 2009-12-24 | 2011-06-30 | 华为终端有限公司 | Reconfigurable mobile phone built-in antenna and implementation method thereof |
| US9007274B2 (en) | 2009-12-24 | 2015-04-14 | Huawei Device Co., Ltd. | Reconfigurable mobile phone bulit-in antenna and implementation method thereof |
| CN104183917A (en) * | 2014-08-26 | 2014-12-03 | 南京濠暻通讯科技有限公司 | Probe side-fed microstrip antenna |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1391416A (en) | 2003-01-15 |
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Granted publication date: 20050216 |