Dual System Omnidirectional Antenna
An omnidirectional antenna, dual-system technology, applied to antennas, independent non-interactive antenna combinations, and devices that enable antennas to work in different bands at the same time, can solve problems such as danger and impedance matching difficulties, and achieve high isolation, Ease of processing and simplified structure
Active Publication Date: 2017-01-18
SICHUAN JIUZHOU ELECTRIC GROUP
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- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
In the case of time-sharing, one antenna system is active while the other is off, however in an airborne environment this situation is very dangerous
On the other hand, the design of UWB antennas is also difficult because of the impedance matching between the two antenna systems
Impedance matching becomes very difficult if the frequencies between the two antenna systems differ too much
Method used
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[0022] All features disclosed in this specification, or steps in all methods or processes disclosed, may be combined in any manner, except for mutually exclusive features and / or steps.
[0023] Any feature disclosed in this specification, unless specifically stated, can be replaced by other alternative features that are equivalent or have similar purposes. That is, unless expressly stated otherwise, each feature is one example only of a series of equivalent or similar features.
[0024] like figure 1 As shown, it is a schematic diagram of a three-dimensional structure of an embodiment of the dual-system omnidirectional antenna of the present invention. The dual-system omnidirectional antenna of this embodiment includes a first antenna part 1 , a second antenna part 2 and a substrate 3 .
[0025] The substrate 3 is printed with a first radio frequency circuit (not shown) and a second radio frequency circuit (not shown), and one side of the substrate 3 is provided with a one-t...
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The invention discloses a double-system omnidirectional antenna which comprises a substrate, a first antenna portion and a second antenna portion. A first radio-frequency circuit and a second radio-frequency circuit are printed on the substrate, and an arranged power divider divides the first radio-frequency circuit into a first feeder branch and a second feeder branch; the first antenna portion comprises a reflector, a first radiator, a second radiator, a first director and a second director, the reflector is a hollow tube, the reflector, the first director and the second director are arranged on the substrate, and the first radiator and the second radiator are arranged on the power divider and are respectively electrically connected with the first feeder branch and the second feeder branch; the second antenna portion comprises a disc radiator body, a cone radiator body and a feeder line, the feeder line is inserted in the reflector to be isolated with the reflector and electrically connected to the second radio-frequency circuit, the disc radiator body is arranged on the feeder line, and the cone radiator body is arranged on the reflector to be grounded; the second antenna portion is arranged at the position of zero depth of the first antenna portion. By the arrangement, two antenna systems can run at the same time, and high isolation between the antenna systems is guaranteed.
Description
technical field [0001] The invention relates to the technical field of antennas, in particular to a dual-system omnidirectional antenna. Background technique [0002] With the rapid development of communication systems, the requirements for antennas in antenna systems are getting higher and higher, and miniaturization, high performance, and integration have become the main requirements of antenna systems for antennas. [0003] At present, in airborne, vehicle-mounted and other environments, the communication system includes more and more antenna systems. When the communication system includes two antenna systems, and the antenna pattern and gain of the two antenna systems are consistent, two methods are usually adopted: [0004] One is that one antenna system uses one antenna alone, and the antennas of different antenna systems are separated in space. Although this can ensure that the two antenna systems can work at the same time, it increases the number of antennas and ma...
Claims
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IPC IPC(8): H01Q5/00H01Q1/42H01Q21/28
Inventor 黄涛杨轩
Owner SICHUAN JIUZHOU ELECTRIC GROUP