CN204333279U - Crack twin-guide antenna - Google Patents
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- CN204333279U CN204333279U CN201520070253.6U CN201520070253U CN204333279U CN 204333279 U CN204333279 U CN 204333279U CN 201520070253 U CN201520070253 U CN 201520070253U CN 204333279 U CN204333279 U CN 204333279U
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Abstract
The utility model provides a kind of crack twin-guide antenna, has such feature, comprising: two waveguides, is fixedly connected by any two sides, is respectively used to transmit the electromagnetic wave signal of different frequency; And crack group, be located on two sides adjacent in two waveguides, comprise: to be located on one of them side and first group of crack paralleling with the length direction of waveguide of polarised direction and being located on another side and polarised direction and the perpendicular second group of crack of length direction.Like this, due to the high-isolation between the twin-guide antenna of crack, when carrying out the transmitting of signal with crack twin-guide antenna or receiving, the channel relevancy of signal can be made close to 0, so, crack of the present utility model twin-guide antenna not only has the advantage that signal attenuation is little, antijamming capability is strong, but also can support MIMO technology preferably, has saved space resources.
Description
Technical field
The utility model relates to transmission of wireless signals field, is specifically related to a kind of crack twin-guide antenna supporting MIMO technology.
Background technology
Growing along with wireless technology, the application of wireless communication technology is also more and more extensive.In a wireless communication system, signal transmission form mainly contains three kinds: freely wireless, leakage coaxial cable and slotted waveguide antenna.
Along with people are to the increase of the communication information amount of transmission, when existing bandwidth is constant, in order to improve power system capacity, emerge in large numbers a kind of new communication technology, i.e. Multiple Input Multiple Output (MIMO technology).MIMO technology refers to and uses multiple transmitting antenna and reception antenna respectively at transmitting terminal and receiving terminal, makes signal by multiple antenna transmission of transmitting terminal and receiving terminal and reception, thus improves communication quality.It can make full use of space resources, realizes MIMO by multiple antenna, when not increasing frequency spectrum resource and antenna transmission power, can increase exponentially system channel capacity, thus improving communication quality.
MIMO technology roughly can be divided into two classes: space diversity and spatial reuse.Space diversity is referred to and utilizes many transmitting antennas to be sent by different paths by the signal with identical information, obtain the signal of the multiple independent decline of same data symbol at receiver end simultaneously, thus obtain the reception reliability of diversity raising, reduce channel bit error rate; Spatial reuse is exactly use multiple antenna at receiving terminal and transmitting terminal, make full use of the multipath component in spatial, identical frequency band uses multiple data channel (MIMO subchannel) transmit, thus capacity is linearly increased along with the increase of antenna amount.The increase of this channel capacity does not need the bandwidth outside occupying volume, does not need to consume extra transmitting power yet, and therefore, MIMO technology improves channel and a kind of very effective means of power system capacity.
Power system capacity is one of most important mark of characterizing communication system, illustrate communication system maximum transfer rate, but the correlation of channel has a great impact power system capacity and the error rate, correlation is larger, the capacity of system is less, the error rate is larger, therefore just needs the isolation between antenna more high better, when the correlation of the antenna number of collection of letters indirectly approaches zero, namely, time uncorrelated, the capacity of system reaches peak.Therefore in MIMO technology, an important indicator of antenna used is the isolation between two antennas, and the isolation between General Requirements two antennas is greater than 20dB.Like this, need to keep at a certain distance away between two antennas and can meet insulated degree requirement, wasting space resource.
In addition, the signal transmission form that current MIMO technology is used is free wireless mode.Free wireless mode directly utilizes free space transmission signal, and therefore, the signal attenuation of this transmission means is larger, and is very easy to the interference being subject to outer signals.When electromagnetic environment becomes increasingly complex, antijamming capability worse and worse.Like this, equally also there is the shortcomings such as signal attenuation is large, interference free performance is poor in current MIMO technology.
Utility model content
The utility model carries out to solve the problem, and object is to provide a kind of and supports MIMO technology, save space, signal attenuation is little, antijamming capability is strong crack twin-guide antenna.
The utility model provides a kind of crack twin-guide antenna, has such feature, comprising: two waveguides, is fixedly connected by any two sides, is respectively used to transmit the electromagnetic wave signal of different frequency; And crack group, be located on two sides adjacent in two waveguides, comprise: to be located on one of them side and first group of crack paralleling with the length direction of waveguide of polarised direction and being located on another side and polarised direction and the perpendicular second group of crack of length direction.
In the crack twin-guide antenna that the utility model provides, such feature can also be had: wherein, each waveguide has two broad side surfaces and two narrow sides, two waveguides are fixedly connected by two narrow sides, crack group is located on two broad side surfaces adjacent in two waveguides, first group of crack is evenly be opened on one of them broad side surface and a plurality of transverse cracks perpendicular with the length direction of waveguide, second group of crack is evenly be opened in two row a plurality of longitudinal cracks paralleled on another broad side surface and with length direction, often adjacent two inclined crack are splayed configuration or inverse Ba type.
In the crack twin-guide antenna that the utility model provides, such feature can also be had: wherein, each waveguide has two broad side surfaces and two narrow sides, two waveguides are fixedly connected by the narrow side of one of them waveguide and the broad side surface of another waveguide, crack group to be located in two waveguides on adjacent broad side surface and narrow side, first group of crack is evenly be opened on broad side surface and a plurality of transverse cracks perpendicular with the length direction of waveguide, second group of crack is a plurality of longitudinal cracks being evenly opened on narrow side and paralleling with length direction.
In the crack twin-guide antenna that the utility model provides, such feature can also be had: wherein, each waveguide has two broad side surfaces and two narrow sides, two waveguides are fixedly connected by the narrow side of one of them waveguide and the broad side surface of another waveguide, crack group to be located in two waveguides on adjacent broad side surface and narrow side, first group of crack be evenly be opened on narrow side and and there are between the length direction of waveguide a plurality of inclined crack of certain angle, often adjacent two inclined crack are splayed configuration or inverse Ba type, second group of crack is evenly be opened in two row a plurality of longitudinal cracks paralleled on broad side surface and with length direction, wherein the position of each longitudinal crack of row is corresponding with the center of two longitudinal cracks adjacent during another arranges.
In the crack twin-guide antenna that the utility model provides, such feature can also be had: wherein, each waveguide has two broad side surfaces and two narrow sides, two waveguides are fixedly connected by two broad side surfaces, crack group is located on two narrow sides adjacent in two waveguides, first group of crack be evenly be opened on narrow side and and there are between the length direction of waveguide a plurality of inclined crack of certain angle, often adjacent two inclined crack are splayed configuration or inverse Ba type, second group of crack is a plurality of longitudinal cracks being evenly opened on narrow side and paralleling with length direction.
In the crack twin-guide antenna that the utility model provides, can also have such feature: wherein, the scope of certain angle is 1 ° ~ 80 °.
The effect of utility model
Crack twin-guide antenna involved by the utility model, on two adjacent sides of two waveguides be fixedly connected, offer first group of mutually orthogonal crack of polarised direction and second group of crack respectively, like this, when carrying out the transmitting of signal with crack twin-guide antenna or receive, the channel relevancy of signal can be made close to 0, so, crack of the present utility model twin-guide antenna not only has signal attenuation is little, antijamming capability is strong advantage but also can realize the high-performance of MIMO technology, and has saved space resources.
Accompanying drawing explanation
Fig. 1 is the structural representation of crack twin-guide antenna in embodiment one of the present utility model;
Fig. 2 is the structural representation of crack twin-guide antenna in embodiment two of the present utility model;
Fig. 3 is the structural representation of crack twin-guide antenna in embodiment three of the present utility model; And Fig. 4 is the structural representation of crack twin-guide antenna in embodiment four of the present utility model.
Embodiment
The technological means realized to make the utility model, creation characteristic, reach object and effect is easy to understand, following examples are specifically addressed crack of the present utility model twin-guide antenna by reference to the accompanying drawings.
< embodiment one >
Fig. 1 is the structural representation of crack twin-guide antenna in embodiment one of the present utility model.
As shown in Figure 1, in the present embodiment one, crack twin-guide antenna 30 is for carrying out transmission radiation to the electromagnetic wave signal of different frequency.Crack twin-guide antenna 30 comprises: two waveguides 31 and crack group 32.
In the present embodiment one, the structure of two waveguides 31 is identical, is only described in detail to one of them waveguide 31, omits the detailed description to another waveguide 31 at this.
Waveguide 31 is rectangular tubular, and inside is aerial configurations, for transmitting electromagnetic wave signal.Waveguide 31 has two broad side surface 31a and two narrow side 31b.
Two waveguides 31 are fixedly connected by two narrow side 31b, and as shown in Figure 1, the narrow side 31b being positioned at the downside of the waveguide 31 of top is fixedly connected with the narrow side 31b of the upside of the waveguide 31 being positioned at below.These two waveguides 31 are respectively used to the electromagnetic wave signal transmitting different frequency.Here connected mode can be the modes such as welding, fixing, the shared a certain side of stickup.
Gap group 32 is arranged on two sides adjacent in two waveguides 31, on two namely adjacent broad side surface 31a.Gap group 32 comprises first group of crack 321 and second group of crack 322.
First group of crack 321 is by a broad side surface 31a being evenly arranged in two adjacent broad side surface 31a.With the direction of Fig. 1, first group of crack 321 is for being arranged on ten transverse crack 321a on the broad side surface 31a of the waveguide 31 being positioned at top.
These ten transverse crack 321a are evenly distributed on broad side surface 31a, and the layout of these ten transverse crack 321a makes, and the electromagnetic wave signal of transmission radiation in this waveguide 31 is strong and stable, signal attenuation is little.
Each transverse crack 321a is rectangular, and the length direction of its length direction and waveguide 31 is perpendicular, like this, makes the polarised direction of this transverse crack 321a along the length direction of waveguide 31, namely, with the length direction of waveguide 31 parallels.
Second group of crack 322 is evenly arranged on another broad side surface 31a in two adjacent broad side surface 31a in two row.With the direction of Fig. 1, second group of crack 322 is for being arranged on seven longitudinal crack 322a on the broad side surface 31a of the waveguide 31 being positioned at below.
These seven longitudinal crack 322a are that two row are evenly distributed on broad side surface 31a, and first is classified as four longitudinal crack 322a, and second is classified as three longitudinal crack 322a.And the position of three longitudinal crack 322a of secondary series is corresponding with the center of two longitudinal crack 322a adjacent in first row.In addition, the layout of these seven longitudinal crack 322a makes the decay of the electromagnetic wave signal of transmission in this waveguide 31 little, and the signal given off is strong and stable.
Each longitudinal crack 322a is also rectangular, and its length direction parallels with the length direction of waveguide 31, like this, makes the length direction of the polarised direction of this longitudinal crack 322a and waveguide 31 perpendicular.
To sum up, the polarised direction in first group of crack 321 and second group of crack 322 is perpendicular, make to transmit the channel relevancy of the electromagnetic wave signal given off close to 0 in corresponding waveguide 31, thus ensure that the stable transfer of the electromagnetic wave signal in two waveguides 31, interference each other can not be caused, meet the insulated degree requirement of MIMO technology.
The effect of embodiment one and effect
Crack twin-guide antenna involved by the present embodiment one, because on two adjacent broad side surfaces of two waveguides be fixedly connected, offer first group of crack that polarised direction parallels with guide length direction respectively, and second group of crack that the length direction of polarised direction and waveguide is perpendicular, like this, when two waveguides carry out Signal transmissions radiation, make the channel relevancy of the signal between two waveguides close to 0, so, the crack twin-guide antenna of the present embodiment one can not only support MIMO technology, and saved space resources, also there is signal attenuation little, the advantage that antijamming capability is strong.
< embodiment two >
In the present embodiment two, the structure identical with embodiment one adopts identical label, and omits identical explanation.
Fig. 2 is the structural representation of crack twin-guide antenna in embodiment two of the present utility model.
As shown in Figure 2, in the present embodiment two, crack twin-guide antenna 230 comprises: two waveguides 31 and crack group 232.
Two crack waveguide tubes 31 are fixedly connected by the narrow side 31b of one of them waveguide 31 and the broad side surface 31a of another waveguide 31.As shown in Figure 2, the narrow side 31b being positioned at the downside of the waveguide 31 of top is fixedly connected with the broad side surface 31a of the upside of the waveguide 31 being positioned at below.
Crack group 232 is arranged on broad side surface 31a adjacent in two waveguides 31 and narrow side 31b.Crack group 232 comprises the first crack group 321 and the second crack group 233.
First crack group 321 is located on broad side surface 31a adjacent in two waveguides 31, and its structure is identical with the structure of the first crack group 321 in embodiment one, does not repeat them here.
Second crack group 233 is arranged on narrow side 31b adjacent in two waveguides 31.With the direction in Fig. 2, the second crack group 233 is for being arranged on seven longitudinal crack 233a on narrow side 31b.
These seven longitudinal crack 233a are evenly distributed on narrow side 31b, and the layout of these seven longitudinal crack 233a to make in this waveguide 31 that the electromagnetic wave signal signal cover of transmission is wide, signal strong and stable, signal Insertion Loss is little.
Each longitudinal crack 233a is also rectangular, and its length direction parallels with the length direction of waveguide 31, like this, makes the length direction of the polarised direction of this longitudinal crack 233a and waveguide 31 perpendicular.
To sum up, the polarised direction in first group of crack 321 and second group of crack 233 is perpendicular, make the channel relevancy of the electromagnetic wave signal of transmission and radiation in corresponding waveguide 31 close to 0, thus ensure that the stable transfer of the electromagnetic wave signal in two waveguides 31, interference each other can not be caused, meet the insulated degree requirement of MIMO technology.
The effect of embodiment two and effect
Crack twin-guide antenna involved by the present embodiment two, because on the adjacent broad side surface and narrow side of two waveguides be fixedly connected, offer second group of crack that the length direction of first group of crack that polarised direction parallels with guide length direction and polarised direction and waveguide is perpendicular respectively, like this, when two waveguides carry out Signal transmissions radiation, make the channel relevancy of signal close to 0, so the crack twin-guide antenna of the present embodiment two can realize the effect identical with embodiment one and effect.
< embodiment three >
In the present embodiment three, the structure identical with embodiment one adopts identical label, and omits identical explanation.
Fig. 3 is the structural representation of crack twin-guide antenna in embodiment three of the present utility model.
As shown in Figure 3, in the present embodiment three, crack twin-guide antenna 330 comprises: two waveguides 31 and crack group 332.
Two crack waveguide tubes 31 are fixedly connected by the narrow side 31b of one of them waveguide 31 and the broad side surface 31a of another waveguide 31.As shown in Figure 3, the narrow side 31b being positioned at the downside of the waveguide 31 of top is fixedly connected with the broad side surface 31a of the upside of the waveguide 31 being positioned at below.
Crack group 332 is arranged on broad side surface 31a adjacent in two waveguides 31 and narrow side 31b.Crack group 332 comprises the first crack group 333 and the second crack group 322.
Second crack group 322 is located on broad side surface 31a adjacent in two waveguides 31, and its structure is identical with the structure of the second crack group 322 in embodiment one, does not repeat them here.
First crack group 333 is located on narrow side 31b adjacent in two waveguides 31.With the direction of Fig. 3, the first crack group 333 is for being arranged on five inclined crack 333a on narrow side 31b.
These five inclined crack 333a are evenly distributed on narrow side 31b, and adjacent two inclined crack 333a are with between these two inclined crack 333a and the symmetrical setting of the center line perpendicular with the length direction of waveguide.Such as, in figure 3, in narrow side 31b two inclined crack 333a of the leftmost side with the symmetrical setting of center line C.In addition, the layout of these five inclined crack 333a makes in this waveguide 31, transmit the electromagnetic wave of radiation, signal is strong and stable, signal attenuation is little.
Each inclined crack 333a assumes diamond in shape, and has certain angle theta between the length direction of its length direction and waveguide 31, and this certain angle theta refers to the acute angle formed between the length direction of inclined crack 333a and waveguide 31.The scope of this certain angle theta is 1 ° ~ 80 °, is preferably 1 ° ~ 30 °.Like this, the polarised direction of this inclined crack 333a is made to parallel with the length direction of waveguide 31.
To sum up, the polarised direction of the first crack group 333 and the second crack group 322 is perpendicular, make the channel relevancy of the electromagnetic wave signal of transmission and radiation in corresponding waveguide 31 close to 0, thus ensure that the stable transfer of the electromagnetic wave signal in two waveguides 31, interference each other can not be caused, meet the insulated degree requirement of MIMO technology.
The effect of embodiment three and effect
Crack twin-guide antenna involved by the present embodiment three, because on the adjacent broad side surface and narrow side of two waveguides be fixedly connected, offer first group of crack that the polarised direction second group crack perpendicular with guide length direction and polarised direction parallel with the length direction of waveguide respectively, like this, when two waveguides carry out Signal transmissions radiation, make the channel relevancy of the signal between two waveguides close to 0, so the crack twin-guide antenna of the present embodiment three can realize the effect identical with embodiment one and effect.
< embodiment four >
In the present embodiment four, the structure identical with embodiment three adopts identical label, and omits identical explanation.
Fig. 4 is the structural representation of crack twin-guide antenna in embodiment four of the present utility model.
As shown in Figure 4, in the present embodiment four, crack twin-guide antenna 430 comprises: two waveguides 31 and crack group 432.
Two waveguides 31 are fixedly connected by two broad side surface 31a.As shown in Figure 4, the broad side surface 31a being positioned at the downside of the waveguide 31 of top is fixedly connected with the broad side surface 31a of the upside of the waveguide 31 being positioned at below.
Crack group 432 is arranged on two narrow side 31b adjacent in two waveguides 31.Crack group 432 comprises the first crack group 333 and second group of crack 433.
First group of crack 333 is arranged on the narrow side 31b of the waveguide 31 being positioned at below, and its structure is identical with the structure in group crack of first in embodiment three 333, does not repeat them here.
Second group of crack 433 is arranged on the narrow side 31b of the waveguide 31 being positioned at top, and as shown in Figure 4, second group of crack 433 is seven the longitudinal crack 433a be located at equably on narrow side 31b.In addition, the layout of these seven the longitudinal crack 433a electromagnetic wave signal that makes to transmit radiation in this waveguide 31 is strong and stable, signal attenuation is little.
Each longitudinal crack 433a is rectangular, and its length direction parallels with the length direction of waveguide 31, like this, makes the length direction of the polarised direction of this longitudinal crack 433a and waveguide 31 perpendicular.
To sum up, the polarised direction in first group of crack 333 and second group of crack 433 is perpendicular, make the channel relevancy of the electromagnetic wave signal of transmission and radiation in corresponding waveguide 31 close to 0, thus ensure that the stable transfer of the electromagnetic wave signal in two waveguides 31, interference each other can not be caused, meet the insulated degree requirement of MIMO technology.
The effect of embodiment four and effect
Crack twin-guide antenna involved by the present embodiment four, because on two adjacent narrow sides of two waveguides be fixedly connected, offer the perpendicular second group of crack in first group of crack and polarised direction that polarised direction parallels with the length direction of waveguide and guide length direction respectively, like this, when two waveguides carry out Signal transmissions radiation, make channel relevancy between two waveguide tube signals close to 0, so the crack twin-guide antenna of the present embodiment four can realize the effect identical with embodiment three and effect.
Above-mentioned execution mode is preferred case of the present utility model, is not used for limiting protection range of the present utility model.
In embodiment three and embodiment four, two adjacent inclined crack are with between these two inclined crack and the symmetrical setting of the center line perpendicular with the length direction of waveguide, in the crack twin-guide antenna that the utility model provides, can also be that often adjacent two inclined crack are splayed configuration or inverse Ba type.
Claims (6)
1. a crack twin-guide antenna, is characterized in that, comprising:
Two waveguides, are fixedly connected by any two sides, are respectively used to transmit the electromagnetic wave signal of different frequency; And
Crack group, be located on two described sides adjacent in described two waveguides, comprise: to be located on side described in one of them and first group of crack paralleling with the length direction of described waveguide of polarised direction and being located on side described in another and described polarised direction and the perpendicular second group of crack of described length direction.
2. crack according to claim 1 twin-guide antenna, is characterized in that:
Wherein, each described waveguide has two broad side surfaces and two narrow sides,
Described two waveguides are fixedly connected by two described narrow sides,
Described crack group is located on two described broad side surfaces adjacent in described two waveguides,
Described first group of crack for being evenly opened in a plurality of transverse cracks on broad side surface described in one of them and perpendicular with the length direction of described waveguide,
Described second group of crack is for being evenly opened in two row a plurality of longitudinal cracks paralleled on broad side surface described in another and with described length direction, and wherein the position of each described longitudinal crack of row is corresponding with the center of two described longitudinal cracks adjacent during another arranges.
3. crack according to claim 1 twin-guide antenna, is characterized in that:
Wherein, each described waveguide has two broad side surfaces and two narrow sides,
Described two waveguides are fixedly connected by the described narrow side of waveguide described in one of them and the described broad side surface of waveguide described in another,
Described crack group is located in described two waveguides on adjacent described broad side surface and described narrow side,
Described first group of crack is evenly be opened on described broad side surface and a plurality of transverse cracks perpendicular with the length direction of described waveguide,
Described second group of crack is a plurality of longitudinal cracks being evenly opened on described narrow side and paralleling with described length direction.
4. crack according to claim 1 twin-guide antenna, is characterized in that:
Wherein, each described waveguide has two broad side surfaces and two narrow sides,
Described two waveguides are fixedly connected by the described narrow side of waveguide described in one of them and the described broad side surface of waveguide described in another,
Described crack group is located in described two waveguides on adjacent described broad side surface and described narrow side,
Described first group of crack be evenly be opened on described narrow side and and there are between the length direction of described waveguide a plurality of inclined crack of certain angle, often adjacent two described inclined crack are splayed configuration or inverse Ba type,
Described second group of crack is evenly be opened in two row a plurality of longitudinal cracks paralleled on described broad side surface and with described length direction, and wherein the position of each described longitudinal crack of row is corresponding with the center of two described longitudinal cracks adjacent during another arranges.
5. crack according to claim 1 twin-guide antenna, is characterized in that:
Wherein, each described waveguide has two broad side surfaces and two narrow sides,
Described two waveguides are fixedly connected by two described broad side surfaces,
Described crack group is located on two described narrow sides adjacent in described two waveguides,
Described first group of crack be evenly be opened on described narrow side and and there are between the length direction of described waveguide a plurality of inclined crack of certain angle, often adjacent two described inclined crack are splayed configuration or inverse Ba type,
Described second group of crack is a plurality of longitudinal cracks being evenly opened on described narrow side and paralleling with described length direction.
6. the crack twin-guide antenna according to claim 4 or 5, is characterized in that:
Wherein, the scope of described certain angle is 1 ° ~ 80 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520070253.6U CN204333279U (en) | 2015-01-30 | 2015-01-30 | Crack twin-guide antenna |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520070253.6U CN204333279U (en) | 2015-01-30 | 2015-01-30 | Crack twin-guide antenna |
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| CN204333279U true CN204333279U (en) | 2015-05-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990689A (en) * | 2015-01-30 | 2016-10-05 | 中电科微波通信(上海)有限公司 | Crack double-waveguide antenna |
| CN111180869A (en) * | 2020-01-02 | 2020-05-19 | 北京邮电大学 | Slot array antenna |
-
2015
- 2015-01-30 CN CN201520070253.6U patent/CN204333279U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105990689A (en) * | 2015-01-30 | 2016-10-05 | 中电科微波通信(上海)有限公司 | Crack double-waveguide antenna |
| CN105990689B (en) * | 2015-01-30 | 2019-07-12 | 中电科微波通信（上海）股份有限公司 | Crack double wave lead antenna |
| CN111180869A (en) * | 2020-01-02 | 2020-05-19 | 北京邮电大学 | Slot array antenna |
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Address after: 201802 Shanghai, Jiading District silver Xiang Road, room 655, No. 1309 Patentee after: Division of microwave communication (Shanghai) Limited by Share Ltd Address before: 201802 Shanghai City, Jiading District Nanxiang Town, Shanghai Yi Road No. 185 building 4 Patentee before: CLP Microwave Communication (Shanghai) Co.,Ltd. |