CN103022606A - High-reliability K-type radiofrequency coaxial terminal load - Google Patents
High-reliability K-type radiofrequency coaxial terminal load Download PDFInfo
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- CN103022606A CN103022606A CN2012105904484A CN201210590448A CN103022606A CN 103022606 A CN103022606 A CN 103022606A CN 2012105904484 A CN2012105904484 A CN 2012105904484A CN 201210590448 A CN201210590448 A CN 201210590448A CN 103022606 A CN103022606 A CN 103022606A
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Abstract
The invention relates to a high-reliability K-type radiofrequency coaxial terminal load. The high-reliability K-type radiofrequency coaxial terminal load is a precision microwave passive device capable of realizing terminal impedance matching of microwave signal transmission paths and completely absorbing transmission energy of coaxial lines. The high-reliability K-type radiofrequency coaxial terminal load comprises a connecting nut, a washer, a snap spring, an insulating support assembly, a shell, four metal foil resistors, soldering tin, a gland and the like which are assembled. Microwave signals with frequencies ranging from low frequencies to 40GHz high frequencies can be received, most of the signals are absorbed, accordingly impendence matching of the signals is guaranteed, and signal leakage at idle ports and mutual interference among systems are greatly reduced. Compared with the traditional K-type load, the high-reliability K-type radiofrequency coaxial terminal load has the advantages that the high-reliability K-type radiofrequency coaxial terminal load is novel in structure, high in reliability, broad in frequency band, excellent in performance and wide in application prospect and is ultra-small, the quantity of standing waves is low, and the like.
Description
Technical field
The present invention relates to a kind of highly reliable K type radio-frequency (RF) coaxial terminate load, belong to the high-accuracy passive device technical field of microwave.
Background technology
The radio-frequency (RF) coaxial terminate load is the terminal impedance coupling that realizes the microwave signal transmission path, a kind of accurate microwave passive component that absorbs fully of coaxial line transmitting energy.Being widely used as the wireless device of high-frequency signal output and the matched load of radar TR assembly alternate channel, also being widely used in space flight payload equipment and the microwave test engineering simultaneously, is one of Primary Component of satellite-signal receive-transmit system.
Along with the widespread demand that fast development and the aerospace of communication satellite cause are used, constantly to the high band expansion, its reliability requirement improves constantly its working frequency range.At present, the shortcoming that has of Universal load is: structure is unreliable, working band and environment resistantly can take into account, seem excessive and can not satisfy the Practical Project requirement in the high frequency band standing-wave ratio.Therefore, need to consider from the fine compensation design of load inside, the highly reliable aspects such as mechanical performance, when improving the load microwave property, solve the problem of its reliability.
Summary of the invention
The object of the invention is to: solve above technical problem, a kind of highly reliable K type radio-frequency (RF) coaxial terminate load is provided, realize the accurate K type radio-frequency (RF) coaxial terminate load of highly reliable structure on the basis that guarantees good microwave transmission parameter and power parameter.
Above-mentioned purpose of the present invention is achieved by the following technical programs:
A kind of highly reliable K type radio-frequency (RF) coaxial terminate load comprises: attaching nut (1), packing ring (2), jump ring (3), insulating supporting assembly (4), housing (5), four metal foil resistors (6), scolding tin (7) and gland (8); Jump ring (3) is installed in the groove of housing (5) outer wall; Attaching nut (1) is installed on the housing (5) by its interior grooves and jump ring (3); Insulating supporting assembly (4) is by contact pin (a) and contact plug (d) interference fit of passing insulator (c), after press-fit in sleeve pipe (b) and to consist of, then insulating supporting assembly (4) is front loaded from housing (5), utilize the interference fit fixation kit of sleeve pipe (b) and housing (5); Four metal foil resistors (6) are crossing distribution by scolding tin (7) and circumferentially are welded between contact pin (a) and the housing (5), and the metal foil resistor on the same straight line oppositely welds; Gland (8) by and housing (5) between interference fit be fixed in housing (5) tail end.
Described insulator (c) structure is fan-type, has high specific strength.
The compensation that misplaces between described contact sheath (d) and the housing (5), the size that axially misplaces e is 0.15mm.
Described gland (8) inside hollows out, alleviated weight, gland (8) all carries out chamfered with the contact site of housing (5) when press-fiting, and is conducive to the assembling of interference fit between gland (8) and housing (5), has strengthened Mechanical Reliability.
The present invention compared with prior art has following advantage:
(1) the fan-type structure of insulating supporting assembly of the present invention and insulator has strengthened mechanical performance of the present invention, so that the present invention has highly reliable characteristic.
(2) compensation of the dislocation between metal foil resistor Type of Welding of the present invention and insulator structure, internal and external conductor, so that the present invention is than traditional microwave pad, working band is wider, the microwave parameters performance is better, broadband, low standing wave, highly reliable K type radio-frequency (RF) coaxial terminate load have been realized, its operating frequency is DC～40GHz, and standing-wave ratio is less than 1.06.
(3) the present invention adopts four metal foil resistors, two resistance on the same straight line oppositely weld, improved the impedance precision of K type load, characteristic impedance is closer to 50 ohm, simultaneously so that the present invention has higher power tolerance, its average power is 2W, and peak power is 200W (pulse period of 1us, 1% duty ratio).
(4) metal foil resistor Type of Welding of the present invention and gland structure are so that the present invention has short, the lightweight characteristics of length.
Description of drawings
Fig. 1 is monnolithic case figure of the present invention;
Fig. 2 is the whole generalized section of the present invention;
Fig. 3 is overall structure exploded perspective view of the present invention;
Fig. 4 is insulating supporting assembly schematic diagram of the present invention;
Fig. 5 is insulator schematic diagram of the present invention;
Fig. 6 is that the present invention contacts the dislocation compensation schematic diagram between sheath and the housing;
Fig. 7 is cross resistance welded schematic diagram of the present invention;
Fig. 8 is gland of the present invention and housing scheme of installation;
1-attaching nut among the figure; The 2-packing ring; The 3-jump ring; 4-insulating supporting assembly; The 5-housing; The 6-metal foil resistor; 7-scolding tin; The 8-gland; The a-contact pin; The b-sleeve pipe; The c-insulator; The d-contact plug; The e-size that misplaces.
Embodiment
Such as Fig. 1, Fig. 2, shown in Figure 3, a kind of highly reliable K type radio-frequency (RF) coaxial terminate load of the present invention comprises: attaching nut 1, packing ring 2, jump ring 3, insulating supporting assembly 4, housing 5, four metal foil resistors 6, scolding tin 7 and glands 8; Jump ring 3 is installed in the groove of housing 5 outer walls; Attaching nut 1 is installed on the housing 5 by its interior grooves and jump ring 3; Insulating supporting assembly 4 is front loaded from housing 5, utilizes the interference fit fixation kit of sleeve pipe b and housing 5; Four metal foil resistors 6 are welded between contact pin a and the housing 5 by scolding tin 7; Gland 8 by and the interference fit of 5 of housings be fixed in housing 5 tail ends.
Such as Fig. 4, shown in Figure 5, insulating supporting assembly 4 is by contact pin a and the contact plug d interference fit of passing insulator c, after press-fit in sleeve pipe b and consist of.Insulator c adopts has the fan-type structure of high specific strength, and its Mechanical Reliability is higher than conventional insulators.
As shown in Figure 6, the compensation that misplaces between contact sheath d and the housing 5, the size that axially misplaces e is 0.15mm.
As shown in Figure 7, metal foil resistor 6 is the cross-shaped symmetrical structure circumferentially to be welded between contact pin a and housing 5 interior step, wherein the metallic resistance film of two paper tinsel resistance 6 is towards contact pin a direction welding, and two then towards gland 8 directions in addition, and two resistance 6 on the same straight line oppositely weld.The reverse distributed architecture of this symmetry had both reduced the length of load, the generation reactive effect when greatly having offset again single chip resistance work, thus effectively improved the excessive problem of high frequency band standing-wave ratio.
As shown in Figure 8, gland 8 inside hollow out, and have alleviated weight, and the contact site when gland 8 press-fits with housing 5 all carries out chamfered, is conducive to the assembling of gland 8 and 5 interference fit of housing, has strengthened Mechanical Reliability.
The working frequency range of K type load is higher, and inner body dimensional accuracy, circumferential precision, resistance assembly technology directly affect contact location and the microwave property of coaxial load, and therefore rational tolerance is distributed and assembled is a great problem.For axial precision, method is to be assembly parts tolerance accommodation zone reasonable in design, by assembling gland Microwave Measurement And Adjustment before to improve axial location precision and microwave property.For circumferential precision, solution is tool part reasonable in design, improves its assembly precision, can the circumferential positioning accuracy of Effective Raise.For the resistance assembling, solution is to select the impedance welding technology, makes suitable welding tooling, strictly controls welding procedure.
Claims (4)
1. a highly reliable K type radio-frequency (RF) coaxial terminate load is characterized in that comprising: attaching nut (1), packing ring (2), jump ring (3), insulating supporting assembly (4), housing (5), four metal foil resistors (6), scolding tin (7) and gland (8); Jump ring (3) is installed in the groove of housing (5) outer wall; Attaching nut (1) is installed on the housing (5) by its interior grooves and jump ring (3); Insulating supporting assembly (4) is by contact pin (a) and contact plug (d) interference fit of passing insulator (c), after press-fit in sleeve pipe (b) and to consist of, then insulating supporting assembly (4) is front loaded from housing (5), utilize the interference fit fixation kit of sleeve pipe (b) and housing (5); Four metal foil resistors (6) are crossing distribution, circumferentially be welded between contact pin (a) and the housing (5) by scolding tin (7), and the metal foil resistor on the same straight line oppositely weld; Gland (8) by and housing (5) between interference fit be fixed in housing (5) tail end.
2. highly reliable K type radio-frequency (RF) coaxial terminate load according to claim 1, it is characterized in that: described insulator (c) structure is fan-type, has high specific strength.
3. highly reliable K type radio-frequency (RF) coaxial terminate load according to claim 1, it is characterized in that: the compensation that misplaces between described contact sheath (d) and the housing (5), the size that axially misplaces e is 0.15mm.
4. highly reliable K type radio-frequency (RF) coaxial terminate load according to claim 1, it is characterized in that: described gland (8) inside hollows out, alleviated weight, gland (8) all carries out chamfered with the contact site of housing (5) when press-fiting, be conducive to the assembling of interference fit between gland (8) and housing (5), strengthened Mechanical Reliability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590448.4A CN103022606B (en) | 2012-12-26 | 2012-12-26 | High-reliability K-type radiofrequency coaxial terminal load |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210590448.4A CN103022606B (en) | 2012-12-26 | 2012-12-26 | High-reliability K-type radiofrequency coaxial terminal load |
Publications (2)
| Publication Number | Publication Date |
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| CN103022606A true CN103022606A (en) | 2013-04-03 |
| CN103022606B CN103022606B (en) | 2015-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210590448.4A Expired - Fee Related CN103022606B (en) | 2012-12-26 | 2012-12-26 | High-reliability K-type radiofrequency coaxial terminal load |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490129A (en) * | 2013-10-10 | 2014-01-01 | 苏州华旃航天电器有限公司 | SMP-series radio frequency coaxial load structure |
| CN104638324A (en) * | 2014-12-10 | 2015-05-20 | 安徽蓝麦通信科技有限公司 | Miniature radio frequency load |
| CN104716415A (en) * | 2013-12-14 | 2015-06-17 | 江苏宏信电子科技有限公司 | F-type radio-frequency coaxial terminal load and manufacturing method thereof |
| CN105514734A (en) * | 2015-12-16 | 2016-04-20 | 中国电子科技集团公司第四十一研究所 | Millimeter wave single-dielectric-support coaxial adapter |
| CN106410342A (en) * | 2016-11-15 | 2017-02-15 | 中国电子科技集团公司第四十研究所 | Coaxial load with low standing-wave ratio |
| CN108365314A (en) * | 2017-12-20 | 2018-08-03 | 中国航天时代电子公司 | A kind of highly reliable coaxial load |
| CN108767386A (en) * | 2018-05-23 | 2018-11-06 | 中国电子科技集团公司第四十研究所 | A kind of fixed standing-wave ratio mismatched load |
| CN109167223A (en) * | 2018-08-28 | 2019-01-08 | 中国航天时代电子有限公司 | A kind of high-precision phase position tunable radio frequency connector |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108364U (en) * | 1991-11-23 | 1992-06-24 | 国营第七二○厂 | Coaxial load |
| CN201285788Y (en) * | 2008-10-20 | 2009-08-05 | 安费诺科耐特(西安)科技有限公司 | Radio frequency coaxial load with band expanding function |
| CN201655944U (en) * | 2009-11-04 | 2010-11-24 | 安费诺科耐特(西安)科技有限公司 | Stainless-steel radio-frequency coaxial load |
| CN102569960A (en) * | 2010-12-20 | 2012-07-11 | 西安金波科技有限责任公司 | SMP (symmetrical multi-processing) radio frequency coaxial load |
-
2012
- 2012-12-26 CN CN201210590448.4A patent/CN103022606B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2108364U (en) * | 1991-11-23 | 1992-06-24 | 国营第七二○厂 | Coaxial load |
| CN201285788Y (en) * | 2008-10-20 | 2009-08-05 | 安费诺科耐特(西安)科技有限公司 | Radio frequency coaxial load with band expanding function |
| CN201655944U (en) * | 2009-11-04 | 2010-11-24 | 安费诺科耐特(西安)科技有限公司 | Stainless-steel radio-frequency coaxial load |
| CN102569960A (en) * | 2010-12-20 | 2012-07-11 | 西安金波科技有限责任公司 | SMP (symmetrical multi-processing) radio frequency coaxial load |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103490129A (en) * | 2013-10-10 | 2014-01-01 | 苏州华旃航天电器有限公司 | SMP-series radio frequency coaxial load structure |
| CN104716415A (en) * | 2013-12-14 | 2015-06-17 | 江苏宏信电子科技有限公司 | F-type radio-frequency coaxial terminal load and manufacturing method thereof |
| CN104638324A (en) * | 2014-12-10 | 2015-05-20 | 安徽蓝麦通信科技有限公司 | Miniature radio frequency load |
| CN105514734A (en) * | 2015-12-16 | 2016-04-20 | 中国电子科技集团公司第四十一研究所 | Millimeter wave single-dielectric-support coaxial adapter |
| CN105514734B (en) * | 2015-12-16 | 2017-11-17 | 中国电子科技集团公司第四十一研究所 | A kind of millimeter wave list dielectric support coaxial adatpter |
| CN106410342A (en) * | 2016-11-15 | 2017-02-15 | 中国电子科技集团公司第四十研究所 | Coaxial load with low standing-wave ratio |
| CN106410342B (en) * | 2016-11-15 | 2018-09-25 | 中国电子科技集团公司第四十一研究所 | A kind of coaxial load of low standing-wave ratio |
| CN108365314A (en) * | 2017-12-20 | 2018-08-03 | 中国航天时代电子公司 | A kind of highly reliable coaxial load |
| CN108767386A (en) * | 2018-05-23 | 2018-11-06 | 中国电子科技集团公司第四十研究所 | A kind of fixed standing-wave ratio mismatched load |
| CN109167223A (en) * | 2018-08-28 | 2019-01-08 | 中国航天时代电子有限公司 | A kind of high-precision phase position tunable radio frequency connector |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103022606B (en) | 2015-06-10 |
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