L waveband non-contact small axial size rotating hinge and realization method for the same

A non-contact, axial size technology, applied in the field of radar antenna feeder, can solve the problems of narrow working frequency band, unreliable assembly, and unsuitable large axial size of L-band non-contact rotary hinge, etc., to achieve easy processing and assembly Reliability, effect of improving high-frequency operating characteristics

Inactive Publication Date: 2017-02-08
THE 724TH RES INST OF CHINA SHIPBUILDING IND
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Problems solved by technology

[0003] The invention relates to an L-band non-contact small axial size broadband rotary hinge and its realization method, which is mainly used to solve the problem th...

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  • L waveband non-contact small axial size rotating hinge and realization method for the same
  • L waveband non-contact small axial size rotating hinge and realization method for the same

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Embodiment Construction

[0017] An L-band non-contact small axial size broadband rotary hinge related to the present invention, the specific implementation is as follows (see the accompanying drawings):

[0018] 1. According to the set characteristic impedance Z 0 Determine the diameters d and D of the coaxial inner and outer conductors of the input and output ports to meet the requirements of Z 0 =60ln(D / d), meanwhile, in order to ensure that the inner core 9 of the SMA socket can be inserted into the coaxial inner conductor 10 of the input and output ports, the coaxial inner conductor 10 of the input and output ports has rigidity, and its diameter d≥2.5mm.

[0019] 2. Transmission ring The coaxial outer conductor 8 and the ring-shaped flat wide coupling line 7 form a coupling transmission ring. The signal of the coaxial input port 2 is divided into two and transmitted to the coupling transmission ring, and then two-in-one is output from the coaxial output port 1. , so the coaxial input and output p...

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Abstract

The invention discloses an L waveband non-contact small axial size rotating hinge and a realization method for the same. The L wave band non-contact small axial size rotating hinge and the realization method solve problems that the bandwidth of an L waveband non-contact type rotating hinge is narrow and a big axial size is not convenient for design of a multi-channel rotating hinge inlay structure and is applied to mechanical scanning system radar countermeasures. About the L waveband non-contact small axial size rotating hinge, a transmission ring coaxial outer conductor and an annular flat wide coupling line constitutes a coupling transmission ring; a signal on a coaxial input port is divided into two signals which are transmitted to the coupling transmission ring and the two signals are combines into one signal which is outputted from a coaxial output port; the coaxial input port and the coaxial output port are connected to the coupling transmission ring in parallel; transmission ring coaxial inner conductors are annular flat coupling lines, between which a certain space is arranged; and two-stage matching sections and a polytetrafluoroethylene medium block constitute a short circuit adjustment device. The L wave band non-contact small axial direction size rotating hinge and a realization method for the same increase the bandwidth of the rotating hinge, reduce the axial size and provide convenience to multichannel rotating hinge inlay structure design, and is easy in part processing and reliable in processing.

Description

technical field [0001] The invention relates to an L-band non-contact small axial size broadband rotary hinge and a realization method thereof, which are suitable for electronic equipment such as mechanical scanning system radar countermeasures. The invention belongs to the technical field of radar antenna feeder. Background technique [0002] In order to search and track the target of mechanical scanning system radar, its antenna must rotate at any time. The multi-channel rotary hinge is composed of multiple single-channel rotary hinges, and its structure can be divided into stacked, nested and hybrid. The multi-channel rotary hinge structure often needs to be designed according to its actual installation space, and sometimes the multi-channel rotary hinge composed of a single-channel rotary hinge with a large radial dimension and a small axial dimension can meet the actual installation requirements. A kind of L-band non-contact rotary hinge, which is to surround the coax...

Claims

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Application Information

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IPC IPC(8): H01P1/06H01P11/00
CPCH01P1/062H01P11/00
Inventor 刘朋朋朱乙平黄琰王洪李
Owner THE 724TH RES INST OF CHINA SHIPBUILDING IND
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