A liquid metal helical antenna
A helical antenna and liquid metal technology, applied in the field of antennas, can solve the problems of limited development of antenna reconfigurability, narrow axial ratio bandwidth, inconvenient transportation and portability, etc., and achieve ideal circular polarization performance, good impedance matching, and tuning methods. Simple and reliable effects
Inactive Publication Date: 2017-08-25
DALIAN MARITIME UNIVERSITY
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0002] Antennas are components used to transmit or receive electromagnetic waves in radio equipment, and are widely used in engineering systems such as radio communications, broadcasting, television, radar, navigation, and remote sensing. Antennas in the prior art are usually made of solid metal conductors such as copper , transportation and portability are inconvenient, the axial ratio bandwidth is relatively narrow, and the development of antenna reconfigurability is limited
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0019] Such as figure 1 A liquid metal helical antenna is shown, the liquid metal helical antenna includes: a dielectric support 1, a spiral radiator 2, a feed matching body 3, a ground plate 4, and a radio frequency coaxial connector 5; the dielectric support 1 Is a truncated cone structure arranged on the ground plate 4; the feed matching body 3 is attached to the lower part of the outer wall of the dielectric support 1; the radio frequency coaxial connector 5 includes a coaxially arranged outer conductor 51 and an inner Conductor 52; the outer conductor 51 is connected to the ground plate 4; the inner conductor 52 is connected to the feed matching body 3; the spiral radiator 2 includes a variable-lift angle spiral tube 21 and accommodated in the spiral tube 21 within the liquid metal 22; the starting end of the spiral tube 21 is attached to the feeding matching body 3, and spirally around the outer wall of the dielectric support 1 to form a cone; further, the spiral antenna i...
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
Login to View More Abstract
The invention discloses a liquid metal helical antenna, which is characterized in that the liquid metal helical antenna includes: a dielectric support body, a helical radiator, a feeding matching body, a ground plate and a radio frequency coaxial joint; the dielectric support body is A truncated cone structure arranged on the ground plate; the feeding matching body is attached to the lower part of the outer wall of the dielectric support; the radio frequency coaxial joint includes an outer conductor and an inner conductor arranged coaxially; the outer conductor is connected to The grounding plate; the inner conductor is connected to the feeding matching body; the spiral radiator includes a variable lift angle spiral tube and liquid metal contained in the spiral tube; the initial end of the spiral tube is attached to on the feeding matching body, and spiral around the outer wall of the dielectric support to form a cone; the invention makes the helical antenna more reconfigurable, and at the same time, the bandwidth of the invention is wider than that of a solid-state antenna with the same structure and size The bandwidth of the metal antenna.
Description
Technical field [0001] The invention relates to an antenna, in particular to a liquid metal spiral antenna. Background technique [0002] Antennas are components used in radio equipment to transmit or receive electromagnetic waves. They are widely used in engineering systems such as radio communications, broadcasting, television, radar, navigation, and remote sensing. The antennas in the prior art are usually made of solid metal conductors such as copper. , It is inconvenient to transport and carry, the axial ratio bandwidth is relatively narrow, and the development of antenna reconfiguration is limited. In recent years, with the rapid development of radar and communication systems, more and more antennas need to be mounted on carriers such as satellites, ships, and airplanes. At the same time, with the increase in the density of mounted antennas, the electromagnetic coupling interference between antennas has become serious , And even affect the normal operation of the antenna, ...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H01Q1/36
Inventor 周芸房少军傅世强刘宏梅王钟葆
Owner DALIAN MARITIME UNIVERSITY