CN200972897Y - High side-ring ring back reflection antenna - Google Patents
High side-ring ring back reflection antenna Download PDFInfo
- Publication number
- CN200972897Y CN200972897Y CN 200620036181 CN200620036181U CN200972897Y CN 200972897 Y CN200972897 Y CN 200972897Y CN 200620036181 CN200620036181 CN 200620036181 CN 200620036181 U CN200620036181 U CN 200620036181U CN 200972897 Y CN200972897 Y CN 200972897Y
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- CN
- China
- Prior art keywords
- annulus
- antenna
- side ring
- back cavity
- high side
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Aerials With Secondary Devices (AREA)
Abstract
The utility model provides a ring backfire antenna having a high side ring. The antenna comprises a back cavity substrate, a cylindrical reflection back cavity, a supporting level fixed on the back cavity substrate, an insulated supporting board, a slave reflector and a director. The cylindrical reflection back cavity is connected with the back cavity substrate, and made of the side ring of the back cavity. The insulated supporting board, the slave reflector and the director are arranged on the supporting lever in turn and parallel the back cavity substrate. The feed source is a ring feed source arranged on the insulated supporting board. The antenna has the advantages of a simple structure, easy matching and installation, a low side lobe, a high front-to-rear ratio, a broader working frequency band than a backfire antenna or patch antenna of the same caliber, a higher gain, an expanded coverage of a base station, an increased image transmission distance, a small size, and a light weight, and allows easy concealment. The antenna is suitable for long-distance image transmission, long-distance coverage or road coverage by WLAN, PHS and 3G base stations, and is mainly used in mobile communication and wireless local area network base stations.
Description
Technical field
The utility model relates to a kind of antenna, particularly relates to a kind of high side ring annulus backfire antenna.
Background technology
Along with the development of radiotechnics, the signal reception and the emission of wireless communication technology system are had higher requirement, particularly the radio communication of the last hundreds of rice of the network terminal is the focus that people pay close attention to, and the index of antenna for base station has directly influenced communication quality.Patcho antenna is adopted in mobile communication and radio area network base station more at present, complex structure, it is big that feedback connects difficulty of matching, working band is narrower, be difficult to adapt to the broadband requirement of mobile communication and radio area network, and the compatibility between aerial network, and antenna volume is big, disguise is poor, also is not suitable as the antenna of army's remote image transmission equipment.Backfire antenna is a kind of novel back of the body cavity reflection resonant aerial that grows up the beginning of the sixties, this class antenna by the reflection of band edge ring back of the body chamber, be located at half-wave dipole before the reflection back of the body chamber or the subreflector before folded dipole feed and the feed is formed.The feed gain is lower, and the frequency band band is narrow.And the loop aerial interference free performance is poor, and it is relatively low to gain.So this kind backfire antenna and loop aerial all are not suitable for present mobile communication and radio area network base station.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned shortcoming, provides a kind of simple in structure, mates easy for installationly, and secondary lobe is low, and front and back are than high, gain and efficient height, and the wide high side ring annulus backfire antenna of working band.
The high side ring annulus of the utility model backfire antenna comprises the drum shape reflection back of the body chamber that is made of the back of the body chamber side ring of carrying on the back the chamber base plate and be connected with back of the body chamber base plate, be fixed on the pole on the base plate of back of the body chamber, be fixed on successively that pole is gone up and with parallel insulated bearing plate, subreflector and the director of back of the body chamber base plate, feed is the annulus feed that is placed on the insulated bearing plate.Wherein, the height of back of the body chamber side ring with 0.5～1 λ for well, thereby further improved gain, reduce secondary lobe, the raising antenna efficiency; Pole is a screw rod, is convenient to adjust the setting height(from bottom) of subreflector and director, makes it reach the optimum position; The annulus feed is made up of the metal hollow annulus of opening, coaxial feeder and the microwave junction that is through in the metal hollow annulus.The both ends of the surface sealing of opening part, an end of coaxial feeder is connected with microwave junction, and the outer conductor of the other end is fixed on the end face of coaxial feeder place opening part, and inner wire stretches out this end face and is fixed on the other end of opening part.For guaranteeing resonance and higher gain preferably, the annulus feed is preferably 0.25 λ with the distance of back of the body chamber base plate; Subreflector is a metal disk, and girth is generally 1.2 λ, and with the distance of annulus feed be 0.25 λ; Director is 3～8 metal disks that are arranged in parallel, and girth is generally less than λ.By adjusting the distance between annulus feed and back of the body chamber base plate and subreflector and director, can realize matched well, make standing-wave ratio in broadband range, reach the requirement of antenna for base station.
The operation principle of the high side ring annulus of the utility model backfire antenna is, the electric wave of annulus feed radiation comes back reflective between reflection back of the body chamber and subreflector, and wherein a part is crossed subreflector, outwards launches along director.
The high side ring annulus of the utility model backfire antenna advantage is simple in structure, and coupling is installed easily, because this kind structure has formed a comparatively desirable opening electromagnetic resonant cavity, its directed radiation performance is strengthened, and spuious energy weaken, thereby, obtain higher gain and reach than Low Sidelobe, front and back are than height, antenna efficiency height, as if than existing with bore backfire antenna or the Patcho antenna working band more, can enlarge base station range, strengthen the image transmission range, and volume be little, in light weight, be convenient to hidden.Be applicable to that mobile communication such as remote image transmission and WLAN, PHS, 3G realize remote the covering or the highway covering, are mainly used in mobile communication and radio area network base station.
Description of drawings
Fig. 1: this reality is made the new structure schematic diagram
Fig. 2: the utility model annulus feed structure schematic diagram
Fig. 3: the utility model voltage standing wave ratio figure
Fig. 4: Smith circle diagram of the present utility model
Fig. 5: the E face directional diagram of the utility model perpendicular polarization normal temperature 2440MHz
Fig. 6: the H face directional diagram of the utility model perpendicular polarization normal temperature 2440MHz
Embodiment
The high side ring annulus of the utility model backfire antenna comprises the drum shape reflection back of the body chamber that is made of the back of the body chamber side ring 2 of carrying on the back chamber base plate 1 and be connected with back of the body chamber base plate 1, be arranged on the pole 3 on the back of the body chamber base plate 1, be fixed on insulated bearing plate 4, subreflector 5 and the director 6 of pole 3 successively, annulus feed 7 is placed on the support plate 4, and annulus feed 7 is made up of the metal hollow annulus 8 of opening, coaxial feeder 9 and the microwave junction 10 that is through in the metal hollow annulus 8.Both ends of the surface 11,12 sealings of opening part, an end of coaxial feeder 9 is connected with microwave junction 10, and the outer conductor 13 of the other end is fixed on the coaxial feeder place opening part end face 11, and inner wire 14 stretches out this end face 11 and is fixed on the other end 12 of opening part.
Claims (7)
1, a kind of high side ring annulus backfire antenna, comprise the reflection back of the body chamber, feed and reflector, it is characterized in that reflecting back of the body chamber is the drum shape reflection back of the body chamber that is made of the back of the body chamber side ring of carrying on the back the chamber base plate and be connected with back of the body chamber base plate, be fixed with pole on the base plate of back of the body chamber, be fixed with the insulated bearing plate parallel with carrying on the back the chamber base plate, subreflector and director on the pole successively, feed is the annulus feed that is placed on the insulated bearing plate.
2, high side ring annulus backfire antenna as claimed in claim 1, the height that it is characterized in that carrying on the back the chamber side ring is 0.5～1 λ.
3, high side ring annulus backfire antenna as claimed in claim 2 is characterized in that the annulus feed and the distance of back of the body chamber base plate are 0.25 λ.
4, high side ring annulus backfire antenna as claimed in claim 1, it is characterized in that the annulus feed is made up of the metal hollow annulus of opening, coaxial feeder and the microwave junction that is through in the metal hollow annulus, the both ends of the surface sealing of opening part, one end of coaxial feeder is connected with microwave junction, the outer conductor of the other end is fixed on the end face of coaxial feeder place opening part, and inner wire stretches out this end face and is fixed on the other end of opening part.
5, high side ring annulus backfire antenna as claimed in claim 1 is characterized in that subreflector is a metal disk, and director is 3～8 metal disks that are arranged in parallel.
6, high side ring annulus backfire antenna as claimed in claim 5, the girth that it is characterized in that subreflector is 1.2 λ, and with the distance of annulus feed be 0.25 λ.
7, high side ring annulus backfire antenna as claimed in claim 5 is characterized in that the director girth is less than λ.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620036181 CN200972897Y (en) | 2006-11-10 | 2006-11-10 | High side-ring ring back reflection antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620036181 CN200972897Y (en) | 2006-11-10 | 2006-11-10 | High side-ring ring back reflection antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200972897Y true CN200972897Y (en) | 2007-11-07 |
Family
ID=38884151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620036181 Expired - Fee Related CN200972897Y (en) | 2006-11-10 | 2006-11-10 | High side-ring ring back reflection antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200972897Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401068A (en) * | 2013-08-08 | 2013-11-20 | 西安电子科技大学 | High-gain wideband stereoscopic slot Yagi antenna |
| CN104466355A (en) * | 2013-09-18 | 2015-03-25 | 深圳光启创新技术有限公司 | Microstrip antenna and network bridge antenna |
| CN109755758A (en) * | 2019-03-12 | 2019-05-14 | 合肥应为电子科技有限公司 | A kind of ultra wide bandwidth wave beam low profile back-cavity antenna structure |
-
2006
- 2006-11-10 CN CN 200620036181 patent/CN200972897Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103401068A (en) * | 2013-08-08 | 2013-11-20 | 西安电子科技大学 | High-gain wideband stereoscopic slot Yagi antenna |
| CN103401068B (en) * | 2013-08-08 | 2015-06-03 | 西安电子科技大学 | High-gain wideband stereoscopic slot Yagi antenna |
| CN104466355A (en) * | 2013-09-18 | 2015-03-25 | 深圳光启创新技术有限公司 | Microstrip antenna and network bridge antenna |
| CN109755758A (en) * | 2019-03-12 | 2019-05-14 | 合肥应为电子科技有限公司 | A kind of ultra wide bandwidth wave beam low profile back-cavity antenna structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |