Unlock instant, AI-driven research and patent intelligence for your innovation.
A TEM horn antenna with a two-section folded structure
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A horn antenna, two-stage technology, applied in the field of TEM horn antenna and ultra-wideband TEM horn antenna, can solve the problems of unfavorable antenna use, transportation and installation, large gain, splitting of the main lobe of the pattern, etc., to improve the splitting phenomenon, the overall Small size, effect of reducing antenna size
Inactive Publication Date: 2019-01-04
BEIHANG UNIV
View PDF3 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, there are two limitations in practical application of this type of antenna: First, the low-frequency gain of the antenna is severely limited by its size. The size of the horn antenna should be reduced as much as possible under the premise of low-frequency bandgain; second, the gain of this type of antenna suddenly drops too much when the frequency is greater than 12 GHz, and the main lobe of the pattern appears split, which is not conducive to the directional transmission of electromagnetic energy and seriously affects wireless communication. quality
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more
Image
Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0043] The thickness of the copper sheet in Example 1 is 1 mm, the conductor plate adopts a two-stage non-uniform exponential gradient, and the antenna port adopts an elliptical hollow design. The specific antenna dimensions are as follows:
[0044] a 1 =100mm, b 1 =50mm, c 1 =80mm;
[0045] a 11 =65mm, a 12 =14mm;
[0046] b 11 =7mm,b 12 =20mm,b 13 = 5mm;
[0047] c 11 =41mm, c 12 =11mm;
[0048] beta 1 =0.0369, β 2 =0.03, β 3 = 0.0568.
Embodiment 2
[0049] Example 2 The thickness of the copper sheet in Example 2 is 1 mm. On the basis of Example 1, the elliptical hollow design is removed for performance comparison. The dimensions of the specific antenna are as follows:
[0050] a 1 =100mm, b 1 =50mm, c 1 =80mm;
[0051] a 11 =65mm, a 12 = 0 mm;
[0052] b 11 =7mm,b 12 = 0 mm;
[0053] c 11 =41mm, c 12 =11mm;
[0054] beta 1 =0.0369, β 2 =0.03, β 3 = 0.0568.
Embodiment 3
[0056] The copper sheet thickness of embodiment 3 is 1mm, and embodiment 3 removes the two-stage non-uniform exponential gradient design on the basis of embodiment 2, that is, the upper and lower conductor plates are uniform exponential gradients, and the gradient distance is 0-100mm, which is used for performance For comparison, the dimensions of the specific antenna are as follows:
[0062] For examples 1, 2, and 3, the standing wave ratio is used for performance evaluation: Figure 5 The short dotted line represents the standing wave ratio of embodiment 3 in the 0.75-20GHz frequency band, the dotted line represents the standing wave ratio of embodiment 2 in the 0.75-20GHz frequency band, and the solid line represents the stan...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
PUM
Property
Measurement
Unit
Thickness
aaaaa
aaaaa
Thickness
aaaaa
aaaaa
Login to View More
Abstract
The invention discloses a TEM horn antenna with a two-section folded structure, comprises a two-section non-uniform exponential graded upper and lower conductor plates, a folded rectangular frame structure on the outer side of the conductor plate, and a uniform exponential graded upper and lower strip loaded between the upper and lower conductor plates and the rectangular frame, wherein the antenna port is designed with an elliptical hollow structure and the upper and lower structures of the antenna are symmetrical; A main radiation unit of a TEM horn antenna is compose of an upper and a lowerconductor plate, an upper and a low strip and a folded rectangular frame; At that back plate of the rectangular frame, a feeding hole is arrange for the inner core of the coaxial connector to pass through and be connected with the upper conductor plate and the upper strip, and feeding is carried out on the inner core; The outer conductor of the coaxial joint is connected with the rectangular frame back plate. The invention adopts a two-section non-uniform exponential graded conductor plate to eliminate the ripple phenomenon on the main lobe of the antenna radiation pattern and effectively improve the antenna directivity; An elliptical hollow-out design is used to optimize the antenna aperture field distribution and reduce the VSWR, improve the antenna gain and smooth the antenna curve.
Description
technical field [0001] The invention relates to a TEM horn antenna with a two-stage folded structure, in particular to an ultra-wideband TEM horn antenna with a two-stage folded structure for electromagnetic compatibility testing, and belongs to the field of ultra-widebandantenna design. Background technique [0002] With the continuous expansion of the working frequency band of wireless communication equipment in the modern battlefield, ultra-wideband (UWB) technology has become a booming hot technology in the world today. It directly modulates the shock pulse with a very steep rise and fall time, so that the signal has a bandwidth of GHz order. UWB technology solves a major propagation problem that has plagued traditional wireless technologies for many years. It has the advantages of insensitivity to channel fading, low power spectral density of transmitted signals, low interception capability, low system complexity, and positioning accuracy of several centimeters. It ha...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More
Application Information
Patent Timeline
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to View More