CN1728454A - Antenna and antenna array - Google Patents
Antenna and antenna array Download PDFInfo
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- CN1728454A CN1728454A CN 200410071129 CN200410071129A CN1728454A CN 1728454 A CN1728454 A CN 1728454A CN 200410071129 CN200410071129 CN 200410071129 CN 200410071129 A CN200410071129 A CN 200410071129A CN 1728454 A CN1728454 A CN 1728454A
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Abstract
The disclosed antenna includes a base plate, a first dual frequency antenna, a second dual frequency antenna, a first frequency selective switch, a second frequency selective switch, and a feed-in point. The first and the second dual frequency antenna are setup on the base plate. The first frequency selective switch possesses a first end and a second end. The first end is coupled to the first dual frequency antenna, and the second end is connected to a first radiation lead. The second frequency selective switch possesses a first end and a second end. The first end is coupled to the second dual frequency antenna, and the second end is connected to a second radiation lead. The feed-in point is located between first and second dual frequency antenna. The antenna array includes a base plate, two pieces of dual frequency antenna pair and a feed-in structure. The two pieces of dual frequency antenna pair are setup on the base plate, and the feed-in structure is connected to the place between two pieces of dual frequency antenna pair.
Description
Technical field
The present invention relates to a kind of antenna and aerial array, particularly a kind of antenna and aerial array with two kinds of operational frequency bands.
Background technology
Along with the wireless telecommunications industry development, the flourish product and the technology of bringing various differences to be used for the multifrequency transmission of wireless transmission is to such an extent as to many products have the performance that is used for wireless transmission, so that satisfy the demands of consumers.On the field of wireless transmission, it is very important to have a good antenna of design.
Generally speaking, the traditional antenna of wireless transmission product is divided into two kinds substantially, and wherein a kind of is planar inverted-f antenna (PIFA), and another kind is the double frequency double-doublet antenna, and this two class all can produce the operator scheme of 1/4 wavelength resonances.General in addition antenna all can only be at single frequency band operation, and along with the evolution of Market Growth and technology can only not meet the market demand at the antenna of single frequency band operation, therefore the invention provides a kind of antenna can operate under double frequency-band simultaneously.
Summary of the invention
The purpose of this invention is to provide a kind of antenna and aerial array, can under two kinds of different frequency ranges, operate, in order to the signal that transmits and receive two frequency ranges.
In order to achieve the above object, the invention provides a kind of antenna comprises: a substrate, one first dual-band antenna, one second dual-band antenna, a first frequency selector switch, a second frequency selector switch and a load point.This first and second dual-band antenna is arranged on this substrate, this first frequency selector switch has one first end and one second end, and this first end couples this first dual-band antenna, this second end connects one first radiation conductor, this second frequency selector switch has one first end and this one second end in addition, and this first end couples this second dual-band antenna, and this second end connects one second radiation conductor, and has a load point between this first and second dual-band antenna.
Another kind of aerial array provided by the invention comprises: a substrate, two dual-band antennas to a feed-in structure.These two dual-band antennas are to being located on this substrate, and this dual-band antenna is to comprising: one first and second dual-band antenna; Second dual-band antenna and the symmetrical setting of this first dual-band antenna, and the first frequency selector switch couples this first dual-band antenna and connects one first radiation conductor, and the second frequency selector switch couples this second dual-band antenna and connects one second radiation conductor, and this feed-in structure be connected in these two dual-band antennas between.
For the ease of further understanding feature of the present invention, purpose and function, the present invention is described in detail with instantiation below in conjunction with accompanying drawing.
Description of drawings
Figure 1A and Figure 1B are the schematic diagrames of antenna first preferred embodiment of the present invention;
Fig. 2 A is the preferred embodiment of frequency selective switch of the present invention;
Fig. 2 B is another preferred embodiment of frequency selective switch of the present invention;
Fig. 3 is another preferred embodiment of antenna of the present invention;
Fig. 4 is an antenna of the present invention preferred embodiment again;
Fig. 5 is aerial array preferred embodiment of the present invention.
Description of reference numerals: 10,10B, 20 antennas; 11,11B first dual-band antenna; 12,12B second dual-band antenna; 13,13A first frequency selector switch; 14 second frequency selector switches; 15,15B, 21 first radiation conductors; 16,16B, 25 second radiation conductors; 171,171A inductance; 172,172A electric capacity; 18,28 load points; 181 feed-in connecting lines; 19,19B, 29,39 substrates; 23 frequency selective switch; 30 aerial arrays; 31,32 dual-band antennas are right; 38 feed-in structures.
Embodiment
See also the schematic diagram of antenna of the present invention first preferred embodiment shown in Figure 1A and Figure 1B.This antenna 10 is a quadripole (Dipole) antennas, includes: a substrate 19, one first dual-band antenna 11, one second dual-band antenna 12, a first frequency selector switch 13, a second frequency selector switch 14 and load point 18.This substrate 19 is FR4 (glass reinforced epoxies, fiberglass reinforcedepoxy resin) or the printed circuit board (PCB) made of glass fiber-reinforced BT (bismaleimide-triazine), the oar sheet substrate (flexible film substrate) that can also make for polyimide (polyimide).This first dual-band antenna 11 is the plain conductors that are printed on this substrate 19 with this second dual-band antenna 12, and this first dual-band antenna 11 is arranged at the position symmetrical manner with this second dual-band antenna 12 and is printed on this substrate 19.This first frequency selector switch 13 has one first end and one second end, and this first end connects this first dual-band antenna 11, and this second end connects one first radiation conductor 15.This second frequency selector switch 14 is connected between this second dual-band antenna 12 and one second radiation conductor 16.Have a load point 18 between this first dual-band antenna 11 and second dual-band antenna 12, load point 18 input signals are gone out signal radiation by first and second dual- band antennas 11,12 more thus.This load point 18 can connect a feed-in connecting line 181, in order to transmit signal.This first frequency selector switch 13 and second frequency selector switch 14 are made up of an inductance 171 and an electric capacity 172, and this inductance 171 and this electric capacity 172 are connected with parallel way.
When this antenna 10 during at high-frequency work, this inductance 171 and electric capacity 172 and be connected first radiation conductor 15 or second radiation conductor, 16 formation, one trap circuit, this kind mode can allow antenna 10 according to first radiation conductor 15 or the value of the length of second radiation conductor 16, this inductance 171 and electric capacity 172, can work in two different frequency scopes (a first frequency signal and a second frequency signal are as 5.1～5.875GHz and two kinds of frequency band ranges of 2.1～2.7GHz) respectively.This kind design, first and second dual- band antennas 11,12 can be increased to the length of first and second dual- band antennas 11,12 by first radiation conductor 15 and second radiation conductor 16 respectively, make this first and second dual- band antenna 11,12 can be at 2.1～2.7GHz resonance.Antenna 10 of the present invention is when load point 18 input first frequency signals 5.1～5.875GHZ, this antenna 10 only carries out resonance at first and second dual- band antennas 11,12, when at load point 18 input second frequency signals 2.1～2.7GHZ, first and second dual- band antennas 11,12 can carry out resonance with first radiation conductor 15 and second radiation conductor 16 respectively, in order to receive or to launch the signal of second frequency 2.1～2.7GHZ.
In this first preferable enforcement, this inductance 171 is a meander inductance (shown in Fig. 2 A), by printing one crooked microstrip line (microstrip line) on substrate 19, makes to present an inductive effect under high frequency; This electric capacity 172 is microstrip line (microstrip line) electric capacity that is printed on the substrate, presents a capacity effect when operating in high frequency.
In addition, another preferred embodiment of this first frequency selector switch 13A shown in Fig. 2 B, this first frequency selector switch 13A has an inductance 171A, two electric capacity 172A, this inductance 171A is a strip microstrip line inductance always, first end of this inductance 171A is connected in this first dual-band antenna 11, and second end of this inductance 171A is connected in this first radiation conductor 15.This electric capacity 172A is the microstrip line electric capacity of another form.This second frequency selector switch (figure does not show) as first frequency selector switch 13A, is not given unnecessary details at this.In addition, please refer to the schematic diagram of antenna 10B second preferred embodiment of the present invention shown in shown in Figure 3.The first dual-band antenna 11B and the second dual-band antenna 12B also can be the antenna of unequal length, and this first and second radiation conductor 15B, 16B also can be the lead of unequal length, with so that its operational frequency range can contain the scope of the big frequency range of lid.
See also an antenna of the present invention shown in Figure 4 preferred embodiment again.
This antenna 20 is a unipole antenna (Monopole Antenna), and this antenna 20 has a substrate 29, one first radiation conductor 21, a frequency selective switch 23, one second radiation conductor 25 and a load point 28.This substrate 29 is FR4 (glass reinforced epoxies, fiberglass reinforcedepoxy resin) or the printed circuit board (PCB) made of glass fiber-reinforced BT (bismaleimide-triazine), the oar sheet substrate (flexible film substrate) that can also make for polyimide (polyimide).This first radiation conductor 21 is the plain conductors that are printed on this substrate 29 with this second radiation conductor 25, and this frequency selective switch 23 has one first end and one second end, this first end connects this first radiation conductor 21, and this second end connects this second radiation conductor 25.This first radiation conductor 21 has a load point 28, and load point 28 input signals are gone out signal radiation by first and second radiation conductors 21,25 more thus.Wherein, this frequency selective switch 23 can be frequency selective switch 13A, the 14A shown in the frequency selective switch 13,14 shown in Fig. 2 A or Fig. 2 B, is not given unnecessary details at this.
When this antenna 20 during at high-frequency work, frequency selective switch 23 forms a trap circuit, allow antenna 20 according to first radiation conductor 21 or the length of second radiation conductor 25, can work in two different frequency scopes (a first frequency signal and a second frequency signal are as 5.1～5.875GHz and two kinds of frequency band ranges of 2.1～2.7GHz) respectively.First radiation conductor 21 can increase length by second radiation conductor 25, makes the antenna 20 can be at 2.1～2.7GHz resonance.Antenna 20 of the present invention is when load point 28 input first frequency signals 5.1～5.875GHZ, this antenna 20 transmits signal by first radiation conductor 21, when at load point 18 input second frequency signals 2.1～2.7GHZ, antenna 20 can transmit signal by first and second radiation conductors 21,25.
See also aerial array preferred embodiment of the present invention shown in Figure 5.
This aerial array 30 comprises: a substrate 39, two dual-band antennas are to 31,32 and one feed-in structure 38.This substrate 39 is FR4 (glass reinforced epoxies, fiberglass reinforced epoxyresin) or the printed circuit board (PCB) made of glass fiber-reinforced BT (bismaleimide-triazine), the oar sheet substrate (flexible film substrate) that can also make for polyimide (polyimide).This aerial array 30 is printed on this substrate 39.These two dual-band antennas give same names to 31,32 respectively as antenna shown in Figure 1 10 and have identical assembly at this.This dual-band antenna comprises 31: first dual-band antenna 11 and second dual-band antenna 12, first frequency selector switch 13, second frequency selector switch 14, and this first frequency selector switch 13 connects first radiation conductor 15, and this second frequency selector switch 14 connects second radiation conductor 16.This kind aerial array 30 can improve day wire spoke field efficient (Radiation Efficiency), and antenna gain (Gain), and these two dual-band antennas are provided with a feed-in structure 38 between 31,32, in order to transmit signal.
As above-mentioned antenna and aerial array, can provide two kinds of frequency ranges to use, not limit two kinds of frequency ranges be 5.1～5.875GHz and 2.1～2.7Ghz in the present invention in addition, can be used in the application of different frequency scope by levelling antenna length, inductance sense value and capacitor's capacity.
The above only is preferred embodiment of the present invention, can not limit the scope of the invention with this.All equalizations of doing according to claim of the present invention change and modify, will not lose main idea of the present invention place, also do not break away from spirit and scope of the invention, all should be considered as further enforcement of the present invention.
Claims (13)
1, a kind of antenna comprises:
One substrate;
One first radiation conductor is disposed on this substrate;
One second radiation conductor is disposed on this substrate;
One frequency selective switch is coupled between this first and second radiation conductor; And
One load point is arranged near the end or this first radiation conductor of this first radiation conductor.
2, antenna as claimed in claim 1, wherein this frequency selective switch comprises:
One inductance prints on this substrate; And
At least one electric capacity is printed on this substrate, and this electric capacity and this inductance are connected in parallel.
3, antenna as claimed in claim 2, wherein this inductance is crooked microstrip line (microstripline) inductance.
4, antenna as claimed in claim 3 should bending microstrip line inductance be a meander inductance wherein.
5, antenna as claimed in claim 2, wherein this inductance is strip microstrip line microstrip line (microstrip line) inductance always, and an end of this inductance connects this first radiation conductor, and the other end of this inductance connects this second radiation conductor.
6, antenna as claimed in claim 2, wherein this electric capacity is a microstrip line (microstrip line) electric capacity.
7, antenna as claimed in claim 1, wherein when the signal of a first frequency is applied to this load point, have only this first radiation conductor work, and when the signal of a second frequency was applied to this load point, this first radiation conductor promptly cooperated this second radiation conductor co-operation.
8, a kind of antenna comprises:
One substrate;
One first dual-band antenna is arranged on this substrate;
One second dual-band antenna, this first dual-band antenna is symmetrical to be located on this substrate;
One first frequency selector switch has one first end and one second end, and this first end couples this first dual-band antenna, and this second end connects one first radiation conductor; And
One second frequency selector switch has one first end and one second end, and this first end couples this second dual-band antenna, and this second end connects one second radiation conductor;
Wherein, has a load point between this first and second dual-band antenna.
9, antenna as claimed in claim 8, wherein this first and second frequency selective switch respectively has an inductance and an electric capacity, and this inductance and this electric capacity are located on this substrate.
10, antenna as claimed in claim 9, wherein this inductance is a meander inductance.
11, antenna as claimed in claim 9, wherein this inductance is strip microstrip line microstrip line (microstrip line) inductance always.
12, as claim a described antenna, wherein this electric capacity is a microstrip line (microstripline) electric capacity.
13, antenna as claimed in claim 8, wherein when the signal of first frequency is applied to this load point, has only this first dual-band antenna and the second dual-band antenna work, and when the signal of a second frequency was applied to this load point, this first and second dual-band antenna promptly cooperated this first and two radiation conductor co-operation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410071129 CN1728454A (en) | 2004-07-29 | 2004-07-29 | Antenna and antenna array |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200410071129 CN1728454A (en) | 2004-07-29 | 2004-07-29 | Antenna and antenna array |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1728454A true CN1728454A (en) | 2006-02-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200410071129 Pending CN1728454A (en) | 2004-07-29 | 2004-07-29 | Antenna and antenna array |
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| CN (1) | CN1728454A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350272A (en) * | 2019-07-02 | 2019-10-18 | 湖南赛博诺格电子科技有限公司 | A kind of 90 ° of phase shifters of mode transmission miniaturization |
| CN112201958A (en) * | 2020-09-18 | 2021-01-08 | Oppo广东移动通信有限公司 | Multi-frequency antenna, antenna assembly and customer premises equipment |
| US11189920B2 (en) | 2019-09-18 | 2021-11-30 | Boe Technology Group Co., Ltd. | Control substrate, liquid crystal phase shifter and method of forming control substrate |
-
2004
- 2004-07-29 CN CN 200410071129 patent/CN1728454A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110350272A (en) * | 2019-07-02 | 2019-10-18 | 湖南赛博诺格电子科技有限公司 | A kind of 90 ° of phase shifters of mode transmission miniaturization |
| US11189920B2 (en) | 2019-09-18 | 2021-11-30 | Boe Technology Group Co., Ltd. | Control substrate, liquid crystal phase shifter and method of forming control substrate |
| CN112201958A (en) * | 2020-09-18 | 2021-01-08 | Oppo广东移动通信有限公司 | Multi-frequency antenna, antenna assembly and customer premises equipment |
| CN112201958B (en) * | 2020-09-18 | 2023-08-15 | Oppo广东移动通信有限公司 | Multi-frequency antenna, antenna assembly and customer premises equipment |
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