Broadband 3dB bridge with ridged rectangular waveguides
A rectangular waveguide and bridge technology, applied in the field of radio frequency and microwave, can solve the problem of narrow bandwidth and achieve the effect of large power capacity, low loss and improved bandwidth
Active Publication Date: 2021-03-05
西安伊艾姆科技有限公司
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Problems solved by technology
[0004] The existing 3dB bridge has many advantages, but the existing 3dB bridge has the problem of narrow bandwidth
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[0034] Due to the narrow bandwidth of existing bridges, see figure 1 , figure 1 It is a structural schematic diagram of a broadband 3dB bridge with a ridged rectangular waveguide provided by an embodiment of the present invention. This embodiment provides a broadband 3dB bridge with a ridged rectangular waveguide. The broadband 3dB bridge with a ridged rectangular waveguide includes a main waveguide 1, a connection structure 2, a coupling structure 3 and a conductor ridge 4, specifically:
[0035] The main waveguide 1 is located at the four corners of the overall structure of the 3dB bridge, using two pairs of first rectangular waveguides parallel to each other to achieve good connection and energy transmission with the connection structure 2; the connection structure 2 uses two pairs of parallel parallel waveguides The second rectangular waveguide merged at the end corresponds to the connection with the first rectangular waveguide of the main waveguide 1, and is used to conn...
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The invention discloses a broadband 3dB bridge with ridged rectangular waveguides, which comprises a main waveguide, a connecting structure, a coupling structure and conductor ridges, and is characterized in that the main waveguide is positioned at four corners of the 3dB bridge and adopts two pairs of first rectangular waveguides which are parallel to each other; the connecting structure adopts two pairs of second rectangular waveguides which are parallel to each other and combined at the tail ends, and the two pairs of second rectangular waveguides are correspondingly connected with the first rectangular waveguides of the main waveguide respectively; the coupling structure is positioned in the center of the 3dB bridge, adopts a third rectangular waveguide and is connected with the secondrectangular waveguides of the connecting structures on the left side and the right side; and the conductor ridges are positioned in the center of the 3dB bridge, are positioned in the main waveguide,the connecting structure and the coupling structure, and comprise a first conductor ridge, a second conductor ridge, a third conductor ridge and a fourth conductor ridge which are respectively symmetrical about the transverse direction and the longitudinal direction. The rectangular waveguide is adopted in the bridge, and the conductor ridge is designed, so that the bandwidth of the bridge is obviously improved, and the problem that the bandwidth of a traditional bridge is narrow is solved.
Description
technical field [0001] The invention belongs to the technical field of radio frequency and microwave, in particular to a broadband 3dB electric bridge with ridged rectangular waveguide. Background technique [0002] The 3dB bridge is a special directional 3dB bridge, which is widely used in the design of radio frequency and microwave circuits, and is an important passive device in systems such as microwave communication, measurement circuits, and antenna feeder networks. With the continuous development of communication technology, higher requirements are put forward for the performance of microwave components. Therefore, it is particularly important to design a 3dB bridge with wider bandwidth while maintaining the original volume or even reducing the volume. [0003] The 3dB bridge is a four-port passive device, which is called the input end, the through end, the coupling end and the isolation end. It can divide the input signal power into two electronic devices with a fixed...
Claims
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IPC IPC(8): H01P5/16
CPCH01P5/16
Inventor 吴边李军锋孙守家高嵩陈建忠
Owner 西安伊艾姆科技有限公司