CN208955166U - A kind of X-band waveguide is to microstrip line transition probe structure component - Google Patents

Abstract

The utility model provides a kind of X-band waveguide to microstrip line transition probe structure component, the construction package includes waveguide excitation probe, PTFE medium set and microstrip line, in the waveguide inner conductor probe insertion PTFE medium set, the waveguide excitation probe insertion PTFE medium, which is put on, is provided with microstrip line；Waveguide inner conductor probe is that one section of cylindrical body is easy to process in the program, does not need reprocessing cushion block positioning, is easily installed, is easy to use, assembly efficiency is high.PTFE medium set lives the exposed portion envelops of waveguide excitation probe, greatly improve waveguide inner conductor probe corrosion resistance, and microwave transmission is had excellent performance, standing wave can arrive 1.2-1.02, differential loss is less than 0.5db, better than 2-3 order of magnitude of the domestic prior art, existing microwave transmission performance is substantially increased.

Description

A kind of X-band waveguide is to microstrip line transition probe structure component

Technical field

The utility model relates to a kind of probe assembly, a kind of X-band waveguide is specifically related to microstrip line transition probe knot Structure component belongs to communication structure component technology field.

Background technique

With the development of communication and radar, more stringent requirements are proposed to communication system by people.Since X-band radar can Enough precision are provided, and have the characteristics that high speed data transfers ability, make its military fire control radar field increasingly by To attention.The advantages of waveguide is that conductor losses and dielectric loss are small, without radiation loss.But waveguide pipe volume is big, above it is difficult With integrated circuit, so wave must be transferred on microstrip line.But existing structure is although small in size but structure is complicated, waveguide excitation Probe is that two sections of steps are difficult to process, and waveguide excitation probe and matched PTFE medium set requirement on machining accuracy compare Height, no matter diameter or length dimension tolerance will guarantee within ± 0.02.A cushion block, cushion block ruler must be reprocessed when assembly Very little short transverse tolerance will also guarantee within ± 0.02 that, to determine waveguide excitation probe vertical direction position, assembly is complicated.Dress In air with complete rear waveguide excitation probe exposure, it is easy to be corroded for a long time, reduces military use product reliability, and microwave Transmission performance is bad, and differential loss is in 0.5-1db, and for standing wave in 1.5-1.4, performance is less desirable.Therefore, urgent need is a kind of New scheme solves the technical problem.

Utility model content

To solve the above problems, the utility model discloses a kind of X-band waveguide to microstrip line transition probe structure component, The technical solution structure is simple, is easily assembled, maintenance convenient for safeguarding, and waveguide excitation probe is that one section of cylindrical body is easy in the program Processing does not need reprocessing cushion block positioning, is easily installed, is easy to use, assembly efficiency is high.PTFE medium is covered wave It leads the exposed portion envelops of excitation probe to live, greatly improves waveguide excitation probe corrosion resistance, and microwave transmission It can be excellent.

In order to reach the goals above, the utility model provides the following technical solutions: a kind of X-band waveguide to microstrip line transition Probe structure component, the construction package include waveguide excitation probe, and PTFE medium set and microstrip line, the waveguide swash It encourages in probe insertion PTFE medium set, the waveguide excitation probe insertion PTFE medium, which is put on, is provided with micro-strip Line.

As a kind of improvement of the utility model, the waveguide excitation probe is a gold-plated brass cylindrical body.Its energy TE wave excitation in waveguide is coupled to formation TEM wave, last size range on microstrip line and goes out one with HFSS Software simulation calculation A size range will not only meet microwave property, also want required precision is not high to be easy to so that last size takes a suitable value Processing.

As a kind of improvement of the utility model, the PTFE medium set is cylindrical body, and top is provided with an appearance Receive the hole of waveguide excitation probe.

As a kind of improvement of the utility model, the waveguide excitation probe and micro-strip wire bonding.

Compared with the existing technology, advantages of the present invention is as follows: 1) the utility model is easily installed, and is easy to use, assembly effect Rate is high；2) PTFE medium set lives the exposed portion envelops of waveguide excitation probe, makes waveguide inner conductor probe Corrosion resistance greatly improves；3) the utility model microwave transmission is had excellent performance, and standing wave can arrive 1.2-1.02, and differential loss is less than 0.5db, Better than domestic existing 2-3 order of magnitude of index, existing microwave transmission performance is substantially increased.

Detailed description of the invention

Fig. 1 is the utility model overall structure assembling schematic diagram；

In figure: 1, device shell, 2, waveguide excitation probe, 3, PTFE medium set, 4, microstrip line.

Specific embodiment

In order to deepen the understanding and understanding to the utility model, with reference to the accompanying drawing with embodiment to the utility model into One step explanation and introduction.

Embodiment 1: referring to Fig. 1, a kind of X-band waveguide to microstrip line transition probe structure component, the construction package packet Waveguide excitation probe 2, PTFE medium set 3 and microstrip line 4 are included, the waveguide excitation probe 2 is inserted into polytetrafluoroethylene (PTFE) and is situated between In matter set 3, it is described lead excitation probe 2 and be inserted into PTFE medium put on and be provided with microstrip line 4.The waveguide excitation probe is A piece gold-plated brass cylindrical body.It, which can motivate the TE ripple and TM ripple in waveguide, is coupled to formation TEM wave on microstrip line, generally It is placed at 1/4 wavelength of waveguide cavity bottom short circuit face, guarantees that excitation probe is in the voltage maximum in waveguide, i.e. electric field most Strength.The processing is simple for the waveguide excitation probe, and accurate to dimension meets GB/T1804-m general precision requirement.Most Size range HFSS Software simulation calculation goes out a size range afterwards, so that last size takes a suitable value, not only wants Meet microwave property, also want required precision not high easy to process, the PTFE medium set 3 is cylindrical body, and top is provided with The hole of one receiving waveguide inner conductor probe.Polytetrafluoroethylene (PTFE) has the characteristics of corrosion-resistant, insulation as medium socket.Utilize poly- four This feature of vinyl fluoride is processed into medium socket and wraps waveguide excitation probe, makes waveguide excitation probe one side insulating device shell Body is not exposed to waveguide excitation probe in air.Last size range goes out one with HFSS Software simulation calculation Size range will not only meet microwave property, also want the not high processing ruler of required precision so that last size takes a suitable value Very little precision meets GB/T1804-m general precision requirement, easy to process.Last size range HFSS software emulation meter A size range is calculated, a suitable value is taken, not only meets microwave property, also want easy to process, the polytetrafluoroethylene (PTFE) Medium socket is cylindrical body, and top is provided with the hole of a receiving waveguide excitation probe, and the waveguide excitation probe 2 and microstrip line 4 weld It connects.

Installation method: referring to Fig. 1, the utility model X-band waveguide to microstrip transition probe structure model includes that waveguide swashs Probe 2 is encouraged, the waveguide excitation probe is first inserted into PTFE medium set, then assembly by PTFE medium set 3 Good waveguide excitation probe and PTFE medium set are packed into waveguide cavity from top to bottom, and PTFE medium set is lain directly against Waveguide cavity lower surface (is directly positioned, without in addition processing cushion block), and waveguide excitation probe core is from the short circuit of waveguide cavity bottom Face keeps 1/4 wavelength distance.Microstrip line is placed on the PTFE medium set assembled above, waveguide excitation probe is allowed to pass through Microstrip line, then waveguide excitation probe and micro-strip wire bonding.

It should be noted that above-described embodiment is only the preferred embodiment of the utility model, there is no be used to limit this reality With novel protection scope, it is practical new to belong to this for the equivalent substitution or substitution made based on the above technical solution The protection scope of type.

Claims (4)

1. a kind of X-band waveguide is to microstrip line transition probe structure component, which is characterized in that the construction package includes that waveguide swashs Probe, PTFE medium set and microstrip line are encouraged, the waveguide excitation probe is inserted into PTFE medium set, the wave Excitation probe insertion PTFE medium is led to put on and be provided with microstrip line.

2. X-band waveguide according to claim 1 is to microstrip line transition probe structure component, which is characterized in that the wave Leading excitation probe is one section of gold-plated brass cylindrical body.

3. X-band waveguide according to claim 2 is to microstrip line transition probe structure component, which is characterized in that described poly- Tetrafluoroethene medium socket is cylindrical body, and top is provided with the hole of a receiving waveguide inner conductor probe.

4. X-band waveguide according to claim 2 or 3 is to microstrip line transition probe structure component, which is characterized in that described Waveguide excitation probe and micro-strip wire bonding, the microstrip line are 5880 plate of RogersRT/duroid.