CN103219575B - Multi-channel combiner capable of improving low pressure power capacity - Google Patents

Abstract

The invention provides a multi-channel combiner for improving low air pressure power capacity, which includes three SMA flanges, three semi-rigid cables and a cross-core assembly, and peripheral equipment includes a filter casing and a TNC socket; wherein the cross-core assembly Including two dielectric sleeves, cross core, SMA flange d and two cross joints; two dielectric sleeves are buckled on the outside of the cross core, two cross joints are buckled on the outside of the two dielectric sleeves, and pass through the SMA flange d Fix the two cross connectors; the bottom of the cross core assembly is fixed in the center of the mixing chamber of the filter casing, the top of the cross core assembly is connected to the TNC socket, and there are three channels in the mixing chamber of the filter casing, namely a, b, c. One end of the three semi-rigid cables are respectively fixed on the outlets of channels a, b, and c through SMA flanges, and the other ends are respectively fixed in the three grooves of the cross core. The inner conductor of the TNC socket is also fixed on the rest of the cross core. in the groove. The invention has the advantages of low loss and large power capacity under low air pressure.

Description

A Multi-Channel Combiner with Improved Low Air Pressure Power Capacity

technical field

The invention relates to a combiner, in particular to a multi-channel combiner with improved low air pressure power capacity, and belongs to the field of microwave technology.

Background technique

For multi-channel synthesis technology, the microwave signal is combined and output in the form of a public coupling cavity, which will lead to a large power density in the public cavity, a large maximum value of the electric field strength, and a low-pressure power capacity of less than 1W, which is prone to discharge. If the method of filling the common cavity with a dielectric is used to improve the low-pressure power capacity, the system loss will be increased due to the large dielectric loss.

Contents of the invention

In view of this, the present invention provides a multi-channel combiner with improved low-air pressure power capacity, which adopts a cross-core component and connects each channel filter with a semi-rigid cable to realize three-channel synthesis.

A multi-channel combiner to improve low air pressure power capacity, the multi-channel combiner includes three SMA flanges, three semi-rigid cables and a cross-core assembly, peripheral equipment includes filter housings and TNC sockets, TNC socket installation On the filter casing; the cross core assembly includes a dielectric sleeve a, a cross core, an SMA flange d, a cross joint a, a dielectric sleeve b and a cross joint b;

The dielectric sleeve a and the dielectric sleeve b are cross-shaped semi-cylinders, and the centers of the two dielectric sleeves are processed with semicircular grooves in the axial and radial directions to form cross grooves; the cross core is a cross-shaped cylinder and its The four ends are processed with grooves along the axial direction; the cross joint a and the cross joint b are cuboids, and the bottom surface of the cuboid extends outward to form a mounting platform, and the center of one surface of the cross joint a and the cross joint b is processed with a semicircle shaped cross groove;

Installation relationship: the medium sleeve a and the medium sleeve b are buckled on the outside of the cross core, and the cross core is fixed in the cross groove of the two, the cross joint a and the cross joint b are buckled on the outside of the medium sleeve a and the medium sleeve b, Also fix the medium sleeve a and the medium sleeve b in the cross grooves of the cross joint a and the cross joint b, and fix the cross joint a and the cross joint b through the SMA flange d;

The bottom of the cross core assembly is fixed in the center of the mixing chamber of the filter casing through the mounting platform on the bottom surface of the cross joint a and cross joint b, the top of the cross core assembly is connected to the TNC socket, and there are three channels in the mixing chamber of the filter housing, respectively a, b, c, one end of the three semi-rigid cables are respectively fixed on the outlets of channels a, b, and c through SMA flanges, and the other ends are respectively fixed in the three grooves of the cross core, and the inner conductor of the TNC socket is also fixed in the remaining groove of the cross core.

Beneficial effect:

The present invention adopts the cross-core component as a combiner, and compared with the traditional public cavity power combining technology, the low-pressure power capacity is increased from 1W to 5W, so it has the advantages of low loss and large low-pressure power capacity.

Description of drawings

FIG. 1 is a structural diagram of a multi-channel combiner of the present invention.

Fig. 2 is a structural diagram of a cross core assembly of the present invention.

Fig. 3 is a structural diagram of the cross core assembly of the present invention without the SMA flange d.

Fig. 4 is a structural diagram of the cross core of the present invention.

Fig. 5 is a structural diagram of the cross joint of the present invention.

Among them, 1-filter housing, 2-SMA flange a, 3-semi-rigid cable a, 4-TNC socket, 5-cross core assembly, 6-semi-rigid cable b, 7-SMA flange b, 8- Semi-rigid cable c, 9-SMA flange c, 11-dielectric sleeve, 12-cross core, 13-SMA flange d, 14-cross connector a

Detailed ways

The present invention will be described in detail below with reference to the accompanying drawings and examples.

As shown in accompanying drawing 1, the present invention provides a kind of multi-channel combiner that improves low air pressure power capacity, and this multi-channel combiner comprises SMA flange a2, semi-rigid cable a3, cross core assembly 5, semi-rigid cable b6, SMA flange b7, semi-rigid cable c8 and SMA flange c9, peripheral equipment includes filter case 1 and TNC socket 4, TNC socket 4 is installed on filter case 1;

As shown in Figure 2 and Figure 3, the cross core assembly 5 realizes the combination of three filter channels, which includes a dielectric sleeve a11, a cross core 12, an SMA flange d13, a cross joint a14, a dielectric sleeve b and a cross joint b;

The dielectric sleeve a11 and the dielectric sleeve b are cross-shaped semi-cylindrical bodies, and the centers of the two dielectric sleeves are machined with semicircular grooves along the axial and radial directions to form cross grooves.

As shown in FIG. 4 , the cross core 12 is a cross-shaped cylinder with grooves processed in the axial direction at four ends.

As shown in Figure 5, both the cross joint a14 and the cross joint b are cuboids, and the bottom surface of the cuboid extends outward to form a mounting platform, and a semicircular cross groove is opened in the center of one surface of the cross joint a14 and the cross joint b;

The installation relationship of the cross core assembly 5: the medium cover a11 and the medium cover b are buckled on the outside of the cross core 12, the cross core 12 is fixed in the cross groove of the two, the cross joint a14 and the cross joint b are buckled on the medium sleeve a11 And the outer side of the medium cover b, also fix the medium cover a11 and the medium cover b in the cross groove of the cross joint a14 and the cross joint b, and fix the cross joint a14 and the cross joint b through the SMA flange d13.

The overall installation relationship: the cross core assembly 5 is fixed in the center of the mixing chamber of the filter case 1 through the mounting table on the bottom surface of the cross joint a14 and the cross joint b, the top of the cross core assembly 5 is connected to the TNC socket 4, and the filter case 1 There are three channels in the mixing chamber, a, b, and c. One end of the semi-rigid cable a3 is fixed on the outlet of the channel a through the SMA flange a2, and the other end is fixed in a groove of the cross core 12. The semi-rigid cable b6 One end of the cable c8 is fixed on the outlet of the channel b through the SMA flange b7, and the other end is also fixed in a groove of the cross core 12. One end of the semi-rigid cable c8 is fixed on the outlet of the channel c through the SMA flange c9, and the other end Fixed in the groove of the cross core 12, the inner conductor of the TNC socket 4 is also fixed in the groove of the cross core 12.

The dielectric sleeve a11 and dielectric sleeve b of the cross core assembly 5 are low-loss polytetrafluoroethylene dielectrics. The signals enter the cross core assembly 5 from one end of the three semi-rigid cables respectively, and are synthesized into one channel through the cross core assembly 5 and exported from the TNC socket 4. .

The invention has passed the 5W continuous wave low-pressure discharge test assessment, and has been successfully applied to multiple types of output multiplexers, passed the flight verification, and works normally on orbit, that is, the use of the combiner makes the low-pressure power capacity Increased from 1W to 5W.

To sum up, the above are only preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the protection scope of the present invention.

Claims (1)

1. one kind is improved the multi-channel power combination device of low pressure power capacity, it is characterized in that, this multi-channel power combination device comprises three SMA flanges, three semi-rigid cables and a cross core assembly (5), ancillary equipment comprises wave filter casing (1) and TNC socket (4), and TNC socket (4) is arranged on wave filter casing (1); Wherein cross core assembly (5) comprises medium socket a (11), cross core (12), SMA flange d (13), cruciform joint a (14), medium socket b and cruciform joint b;

Described medium socket a (11) and medium socket b are cross semicylinder, and the center of two medium sockets is processed with semi-circular recesses vertically and forms cross recess with radial direction; Described cross core (12) is for cross cylinder and its four end is processed with groove all vertically; Described cruciform joint a (14) and cruciform joint b are cuboid, the formation erecting bed and the bottom surface of cuboid stretches out, it is semicircular cross groove that a centre of surface of cruciform joint a (14) and a centre of surface of cruciform joint b are processed with cross section;

Installation relation: medium socket a (11) and medium socket b is to the outside being buckled in cross core (12), cross core (12) is fixed in both cross recesses, cruciform joint a (14) and cruciform joint b is to the outside being buckled in medium socket a (11) and medium socket b, also medium socket a (11) and medium socket b is fixed in the cross recess of cruciform joint a (14) and cruciform joint b, and by SMA flange d (13), cruciform joint a (14) and cruciform joint b is fixed;

Cross core assembly (5) bottom is fixed on the hybrid chamber center of wave filter casing (1) by the erecting bed of cruciform joint a (14) and cruciform joint b bottom surface, the top of cross core assembly (5) is connected with TNC socket (4), three passages are had to be respectively a in the hybrid chamber of wave filter casing (1), b, c, one end of three semi-rigid cables is fixed on passage a respectively by SMA flange, b, in the outlet of c, the other end is separately fixed in three grooves of cross core (12), the inner wire of TNC socket (4) is also fixed in cross core (12) remaining groove.