A realization method of a wide-band stackable coaxial rotary hinge
A rotary hinge, coaxial technology, applied in electrical components, circuits, waveguide-type devices, etc., can solve the problems of low working frequency of coaxial rotary hinges, high working frequency of coaxial rotary hinges, unsuitable for stacking, etc. Small size, high operating frequency, and the effect of solving signal crosstalk
Active Publication Date: 2017-03-29
THE 724TH RES INST OF CHINA SHIPBUILDING IND
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Problems solved by technology
[0004] The present invention aims at the problem that the working frequency of the coaxial rotary hinge is not high, the frequency band is not wide, and the structure is not suitable for stacking in the prior art. High frequency, wide frequency band, suitable for accumulation in structure
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[0012] A realization method of a broadband stackable coaxial rotary hinge related to the present invention, the main steps (see the accompanying drawings):
[0013] Design the space size of the coaxial rotary hinge cavity consisting of the upper cavity 1 and the lower cavity 2 of the rotary hinge. The higher the operating frequency, the smaller the space size of the rotary hinge cavity. Input the radial distance between the coaxial line and the bushing The smaller the coaxial rotary hinge sleeve 5 is, the upper hole is passed through the radio frequency cable of the stacked coaxial rotary hinge to realize the broadband stackable coaxial rotary hinge. On the premise that the stacked coaxial rotary hinge radio frequency cable can be placed The smaller, the better the performance of the swivel hinge;
[0014] Design a section of coaxial lines 10 and 11 with square inner conductors and circular outer conductors on the lower end cap and upper end cap of the rotary hinge. The c...
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The invention relates to a realizing method for stacked coaxial rotating hinges for broadband. The method is mainly used for solving the problem that rotating hinges with higher frequency, wider broadband and more passages are required by the conventional radar. The invention belongs to the technical field of radar antennas and microwaves. The space size of a coaxial rotating hinge cavity which consists of an upper cavity and a lower cavity is small, the lower cavity and a sleeve are integrated into a whole, and an input signal is divided into two paths at an input coaxial line port. When the upper cavity rotates, the lower cavity, the sleeve and a transmission ring are relatively still together, transmission band ports for transmitting the two paths of input signals are respectively in contact type slide fit with the transmission ring in at the position of 0 degree and the relative position of 180 degrees of the lower part of the transmission ring, the transmission band ports for transmitting the two paths of input signals are respectively welded to the transmission ring in the position of 0 degree and the relative position of 180 degrees of the lower part of the transmission ring, the two paths of input signals are combined into the output signal at the output coaxial line port, and a set of reeds with convex ports are wound into one circle between the upper cavity and the lower cavity of the coaxial rotating hinge so as to realize the contact type slide fit.
Description
technical field [0001] The invention relates to a realization method of a broadband stackable coaxial rotary hinge, which is suitable for electronic equipment such as modern radars. The invention belongs to the field of radar antenna and microwave technology. Background technique [0002] The rotating part of the rotary hinge inputs the radar signal, while the relatively stationary part of the rotary hinge outputs the radar signal. The relative movement between the radar antenna and the transmitter and receiver needs to be completed by the rotary hinge. With the expansion of the radar function, the The requirements for rotary hinges are also getting higher and higher, with high operating frequency, wide frequency band, and large number of integrated channels. At present, a high-frequency choke groove structure is designed between the rotating part and the relatively static part of the rotary hinge. The structure between the rotating part and the relatively static part is di...
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IPC IPC(8): H01P1/06
Inventor 朱乙平胡永君陈文俊
Owner THE 724TH RES INST OF CHINA SHIPBUILDING IND