CN209913046U - Broadband single-polarized Vivaldi antenna - Google Patents
Broadband single-polarized Vivaldi antenna Download PDFInfo
- Publication number
- CN209913046U CN209913046U CN201920866116.1U CN201920866116U CN209913046U CN 209913046 U CN209913046 U CN 209913046U CN 201920866116 U CN201920866116 U CN 201920866116U CN 209913046 U CN209913046 U CN 209913046U
- Authority
- CN
- China
- Prior art keywords
- antenna
- line
- layer
- slot
- slot line
- 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
Links
- 239000002184 metal Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims description 6
- 239000004744 fabric Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 230000010287 polarization Effects 0.000 abstract description 4
- 238000001465 metallisation Methods 0.000 abstract description 3
- 238000004891 communication Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Images
Landscapes
- Waveguide Aerials (AREA)
Abstract
The utility model relates to a wide band single polarization Vivaldi antenna relates to gap microstrip antenna technical field. The utility model discloses by the metal level of top layer, the medium plate in intermediate level, the metal microstrip line three-layer of bottom is constituteed. The shapes of the antenna gradual change slot lines of the metal layer comprise antenna gradual change slot lines, rectangular slot lines and circular slot lines. The minimum slot width of the antenna gradual change slot line is 0.2mm-0.3 mm; the rectangular groove line is long and is 1mm-2 mm; the circular groove line is a fan-shaped groove line with an opening of 60 degrees and a radius of 7 mm. The microstrip line on the bottom layer extends to the edge position of the rectangular slot line from the plate edge and is directly connected with the front metal layer through the metallization hole. The utility model discloses the wholeness ability of antenna: the standing-wave ratio is less than 2.0 under the condition that the frequency range is 18GHz-50GHz, and the antenna efficiency is higher than 72%. The receiving antenna corresponding to the microwave anechoic chamber can be matched with the microwave anechoic chamber. Provides a technical foundation for the G5 era of wide application.
Description
Technical Field
The utility model relates to a gap microstrip antenna technical field specifically indicates a broadband single polarization Vivaldi antenna.
Background
In 1979, Gibson proposed an exponentially-graded slot line antenna, namely a Vivaldi antenna, which is an aperiodic, graded and end-fire traveling wave antenna; the antenna is also a high-gain, linearly polarized and constant-gain antenna. Based on the simple structure and easy processing, the device is widely applied to various fields of wireless communication, such as radar systems, microwave test systems, base station systems and the like.
It is known that antennas are specially made for different applications and different performance levels. The same is true of the Vivaldi antenna. At present, most consumer products adopt technologies such as WIFI, ZIGBEE and 4G, BT to realize wireless communication, and the working frequency of the consumer products is generally within 6 GHz. When 5G enters the market, especially when millimeter wave transmission is used in the second stage, the operating frequency of the antenna will reach 40 GHz. Obviously, the Vivaldi antenna cannot meet the performance index in the range of 18GHz-50GHz due to different working frequencies at present, and cannot be used for carrying out wireless communication test or data receiving and transmitting on 5G millimeter wave products.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the disappearance and not enough that prior art exists, provide a broadband single polarization Vivaldi antenna.
Based on that the opening size of the slot of the Vivaldi antenna is exponentially and rapidly increased, the operating frequency of the Vivaldi antenna is much higher than that of a linear gradually-changed slot microstrip antenna in the same size. The miniaturization of the broadband antenna is easy to realize.
The conventional Vivaldi antenna is composed of a top metal layer, a middle dielectric plate, a bottom metal microstrip line and three layers of materials, wherein the three layers of materials comprise a gradual change slot line, a rectangular slot line, a microstrip line, a circular slot line and the like (as shown in the attached figure 1).
The utility model discloses a broadband single polarization Vivaldi antenna, according to the principle that Vivaldi antenna is by the metal level of top layer, the dielectric plate in intermediate level, the metal microstrip line of bottom, three-layer material are constituteed. According to the target working frequency range, the shape of the antenna gradual change slot line is obtained through calculation, and the minimum slot width of the metal layer is 0.20-0.30 mm. And forming an upper metal layer by matching a rectangular slot line with the length of 1-2mm, a fan-shaped slot line with an opening of 60 degrees and a radius of 7 mm.
The utility model discloses a Vivaldi antenna adopts the polytetrafluoroethylene material of glass cloth reinforcing as the dielectric plate substrate in intermediate level, brings huge help for improving the standing-wave ratio performance under the condition of so high frequency, can reduce the transmission loss of radio frequency signal on the microstrip line greatly.
The bottom layer adopts a microstrip line form, and the microstrip line extends to the edge position of the rectangular slot line from the plate edge and is directly connected with the front metal layer through the metallization hole.
As described above, the present invention combines the above improvements, and the overall performance of the final antenna is still not higher than 2.0 at 18GHz to 50GHz (even 60GHz), and the antenna efficiency is higher than 72%.
Drawings
FIG. 1 is a schematic diagram of a conventional Vivaldi antenna structure;
fig. 2 is a schematic view of the Vivaldi antenna structure in front view;
FIG. 3 is a graph of standing-wave ratio according to an embodiment of the present invention;
fig. 4 is a graph of efficiency curve of the embodiment of the present invention.
Detailed Description
The invention is further described with reference to the following figures and examples
A broadband single-polarized Vivaldi antenna is composed of three layers, namely a metal layer 1 on the top layer, a dielectric plate 2 on the middle layer and a metal microstrip line 3 on the bottom layer.
In one embodiment, a broadband single-polarized Vivaldi antenna is installed at a fixed position in a microwave anechoic chamber, and is used as a receiving antenna of a test system to wirelessly transmit and receive data with 5G products and measure the power of a wireless signal. Therefore, the receiving antenna of the microwave anechoic chamber is required to be matched with the microwave anechoic chamber, and the frequency range is 18GHz-50 GHz.
According to the target working frequency range, the shape of the antenna gradual change slot line 1 comprises an antenna gradual change slot line 11, a rectangular slot line 12 and a circular slot line 13 which are set in the aspect of metal layer design through calculation.
The minimum groove width of the antenna gradual change groove line 11 is 0.2mm-0.3 mm;
the rectangular slot line 12 is 1mm-2mm long;
the circular groove line 13 is a fan-shaped groove line with an opening of 60 degrees and a radius of 7 mm.
Further, the minimum slot width of the antenna gradual change slot line 11 is 0.25 mm;
the rectangular slot line (12) is long, and is optimally 1.2 mm.
The middle-layer dielectric plate 2 is made of glass cloth reinforced polytetrafluoroethylene material.
The microstrip line 3 at the bottom layer extends from the plate edge to the edge of the rectangular slot line 12, and is directly connected with the front metal layer 1 through the metallization hole 4 (as shown in fig. 2).
The examples, measured the standing wave ratio curve (as shown in figure 3) and the efficiency curve (as shown in figure 4) of the present invention.
To sum up, the utility model discloses the overall performance of final antenna is standing-wave ratio under 18GHz to 50GHz (even 60GHz) condition still is not higher than 2.0, and antenna efficiency is higher than 72%. The antenna meets the requirement that the receiving antenna of the microwave anechoic chamber can be matched with the microwave anechoic chamber, and the frequency range is 18GHz-50 GHz. Provides a technical foundation for the G5 era of wide application.
Claims (3)
1. A broadband single-polarized Vivaldi antenna is composed of three layers, namely a metal layer (1) on the top layer, a medium-layer dielectric plate (2) and a metal microstrip line (3) on the bottom layer, and is characterized in that the metal layer (1) comprises an antenna gradual change slot line (11), a rectangular slot line (12) and a circular slot line (13);
the middle-layer dielectric plate (2) is made of glass cloth reinforced polytetrafluoroethylene material;
and the metal microstrip line (3) at the bottom layer extends from the edge of the plate to the edge of the rectangular slot line (12) and is connected with the metal layer (1) through the metallized hole (4).
2. A broadband single-polarized Vivaldi antenna according to claim 1, wherein said antenna tapered slot line (11) has a minimum slot width of 0.2mm to 0.3 mm;
the rectangular slot line (12) is 1mm-2mm long;
the circular groove line (13) is a fan-shaped groove line with an opening of 60 degrees and a radius of 7 mm.
3. A broadband single-polarized Vivaldi antenna according to claim 1 or 2, characterized in that said antenna tapered slot line (11) has a minimum slot width, preferably 0.25 mm; the rectangular slot line (12) is long, and is optimally 1.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920866116.1U CN209913046U (en) | 2019-06-11 | 2019-06-11 | Broadband single-polarized Vivaldi antenna |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920866116.1U CN209913046U (en) | 2019-06-11 | 2019-06-11 | Broadband single-polarized Vivaldi antenna |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209913046U true CN209913046U (en) | 2020-01-07 |
Family
ID=69049976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920866116.1U Expired - Fee Related CN209913046U (en) | 2019-06-11 | 2019-06-11 | Broadband single-polarized Vivaldi antenna |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209913046U (en) |
-
2019
- 2019-06-11 CN CN201920866116.1U patent/CN209913046U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205811043U (en) | A kind of M shape three band Planer printed monopole antenna | |
| US6593895B2 (en) | Printed dipole antenna with dual spirals | |
| CN208460981U (en) | A kind of four unit millimeter wave antenna system of communication terminal | |
| CN202712422U (en) | Ultra wide-band antenna | |
| CN104882674A (en) | High-isolation dual polarization differential double-frequency MIMO (Multiple-Input-Multiple-Output) antenna | |
| Goyal et al. | T-slotted microstrip patch antenna for 5G Wi-Fi network | |
| CN114256614B (en) | Ultra-wideband planar antenna array applied to millimeter wave communication system | |
| CN206401522U (en) | A kind of new three-frequency antenna based on racemosus structure | |
| Sreemathy et al. | Design, analysis and fabrication of dual frequency distinct bandwidth slot loaded wash cotton flexible textile antenna for ISM band applications | |
| CN107634332A (en) | A kind of element microstrip array antenna for reducing coupling | |
| CN209913046U (en) | Broadband single-polarized Vivaldi antenna | |
| CN101626110A (en) | Novel C-band microstrip antenna with negative permeability material | |
| Gondi et al. | A lens shaped slot and parasitic element isolated MIMO antenna for 5G wireless applications | |
| CN203423257U (en) | Series-connected T-shaped microstrip antenna | |
| Sharma et al. | Analysis of MIMO antennas with parasitic elements for wireless applications | |
| CN203434283U (en) | Opening rectangular ring coplanar type ultra wide band microstrip antenna | |
| CN203481383U (en) | Symmetric circular patch coplanar microstrip antenna | |
| CN112635987A (en) | Double-fan-shaped high-gain microstrip patch antenna | |
| CN111293433A (en) | Flexible hexagonal ultra-wideband antenna | |
| CN109818143A (en) | Broad frequency micro-band paster antenna | |
| CN113745822B (en) | Design method of low cross polarization asymmetric millimeter wave oscillator antenna | |
| Babu et al. | Design of a compact octagonal UWB MIMO antenna employing polarization diversity technique | |
| CN216958499U (en) | Antenna structure and wireless system | |
| CN104681939A (en) | Compact E-type array antenna applied to MIMO (Multiple Input Multiple Output) | |
| CN211743398U (en) | Flexible hexagonal ultra-wideband antenna |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210108 Address after: 201600 Room 301, 3 / F, building 1, 398 Zhongchuang Road, Songjiang District, Shanghai Patentee after: Shanghai echut Technology Co.,Ltd. Address before: Building b196, No.2, Lane 158, GANGYE Road, Xiaokunshan Town, Songjiang District, Shanghai, 201614 Patentee before: AIQIUTE (SHANGHAI) AUTOMATION EQUIPMENT Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200107 |