A kind of SMT circulator for Video transmission system
Technical field
The utility model relates to a kind of microwave ferrite circulator part, is specifically related to a kind of SMT circulator for Video transmission system.
Background technology
Along with the universal of modern microwave technology and the expansion of application, some companies having a prediction of market are at research and development and the wireless communication system produced for ultrahigh frequency RFID, transmission of video, wireless video, its system have frequency high, be disturbed few, long transmission distance, image quality is clear, the advantage such as simple and practical, just accepted by increasing user, market potential is huge; Existing circulator is made up of the ferrite substrate of two panels symmetry, center conductor and permanent magnet etc., and along with the development of the technology such as microwave communication, Broadcast and TV system and electronic countermeasures, more and more large to the demand of all kinds of Microwave Iron Oxide Elements, but simultaneously to the requirement of the index performance of Microwave Iron Oxide Elements also more and more high, dimensional requirement is more and more little, power requirement is more and more large, can not meet the requirement of modern complete machine by traditional mentality of designing.
Utility model content
(1) technical problem that will solve
For solving the problem, the utility model proposes a kind of SMT circulator for Video transmission system, in ultrahigh frequency RFID, transmission of video, wireless video system, playing transmit-receive switch effect, its volume is little, working band is wide, high temperature resistant and unfailing performance is high.
(2) technical scheme
SMT circulator for Video transmission system of the present utility model, comprise silver-plated cavity, be disposed with lower ferrite gyromagnet, double-Y shaped inner wire, upper ferrite gyromagnet, magnetic sheet, permanent magnet and upper cover plate in described silver-plated cavity from the bottom to top, described upper cover plate is tightened in silver-plated cavity top by thread; Described 120 °, silver-plated cavity interval offers gathering sill; Contiguous block is outward extended with bottom described gathering sill; Described contiguous block offers connecting hole; Described double-Y shaped inner wire and magnetic disk card are connected in gathering sill; Described double-Y shaped inner wire and silver-plated cavity are fixed by joint pin and adapter sleeve.
As preferred embodiment, described upper cover plate is made up of stainless steel material.
Further, described double-Y shaped inner wire comprises three long conductors and three short conductors that are made into integration; And long conductor and 60 °, short conductors interval; Described long conductor offers installing hole; Described long conductor is connected in gathering sill.
Further, described magnetic sheet is outward extended with three pins; Described pincard is connected in gathering sill.
Further, described joint pin through after adapter sleeve and connecting hole, is installed with installing hole successively.
As preferred embodiment, the rounded structure of described silver-plated cavity.
As preferred embodiment, described permanent magnet is samarium-cobalt material permanent magnet.
(3) beneficial effect
Compared with prior art, the SMT circulator for Video transmission system of the present utility model, adopts circular silver-plated cavity, convenient processing and magnetic screen; Adopt thread screw-fashion whole interiors of products can be made to compress without any need for screw, easily screw; Select ferrite gyromagnet, make product only need very weak magnet just can normally work; By the design of double-Y shaped inner wire, increase working band width; Adopt the permanent magnet made of samarium-cobalt material, heat resistance and stability good.
Accompanying drawing explanation
Fig. 1 is explosive view of the present utility model.
Parts in accompanying drawing are labeled as: the silver-plated cavity of 1-, 2-adapter sleeve, the upper ferrite gyromagnet of 3-, 4-joint pin, the double-Y shaped inner wire of 5-, 6-permanent magnet, 7-magnetic sheet, 8-upper cover plate, 9-contiguous block, ferrite gyromagnet under 10-, 11-gathering sill, 12-connecting hole, 13-installing hole, 14-pin, 51-long conductor, 52-short conductors.
Embodiment
The SMT circulator for Video transmission system as shown in Figure 1, comprise silver-plated cavity 1, be disposed with lower ferrite gyromagnet 10, double-Y shaped inner wire 5, upper ferrite gyromagnet 3, magnetic sheet 7, permanent magnet 6 and upper cover plate 8 in described silver-plated cavity 1 from the bottom to top, described upper cover plate 8 is tightened in silver-plated cavity 1 top by thread; Described 120 °, silver-plated cavity 1 interval offers gathering sill 11; Contiguous block 9 is outward extended with bottom described gathering sill 11; Described contiguous block 9 offers connecting hole 12; Described double-Y shaped inner wire 5 and magnetic sheet 7 are connected in gathering sill 11; Described double-Y shaped inner wire 5 is fixed by joint pin 4 and adapter sleeve 2 with silver-plated cavity 1.
Described upper cover plate 8 is made up of stainless steel material.
Described double-Y shaped inner wire 5 comprises three long conductors 51 and three short conductors 52 that are made into integration; And long conductor 51 and 60 °, short conductors 52 interval; Described long conductor 51 offers installing hole 13; Described long conductor 51 is connected in gathering sill 11.
Described magnetic sheet 7 is outward extended with three pins 14; Described pin 14 is connected in gathering sill 11.
Described joint pin 4 through after adapter sleeve 2 and connecting hole 12, is installed with installing hole 13 successively.
The rounded structure of described silver-plated cavity 1.
Described permanent magnet 6 is samarium-cobalt material permanent magnet.
Embodiment recited above is only be described preferred implementation of the present utility model, not limits design of the present utility model and scope.Under the prerequisite not departing from the utility model design concept; the various modification that this area ordinary person makes the technical solution of the utility model and improvement; protection range of the present utility model all should be dropped into; the technology contents of the utility model request protection, all records in detail in the claims.