SJ 20676-1998 General specification for solid-state broadband power amplifier modules for communication countermeasures
Some standard content:
Military Standard for Electronic Industry of the People's Republic of China FL5963
SJ 20676—1998
General specification for
wideband solid power amplifier module in CCM1998-03-10Promulgated
Implementation on 1998-05-01Approved by the Ministry of Electronics Industry of the People's Republic of China1·Scope
Subject content
Applicable scope
Referenced documents
Qualification appraisal
Power amplifier module series Wings and main indicators Power amplifier module appearance dimensions and installation
Reliability
Maintainability
Environmental requirements
Interchangeability
Marking and code
Appearance quality
Quality assurance regulations
Inspection qualifications
Inspection points Category·
Inspection conditions
Identification inspection
Quality--Conformity inspection·
Packaging inspection
Inspection method
Delivery preparation
Sealing and packaging
Transportation and storage
Instructions
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6.1 Intended use
6.2 Contents of ordering documents
Appendix A Defect classification (supplement)
People's Republic of China Electronic Industry Military Standard Communication Countermeasures Solid-state Wideband Power Amplifier Module General Specification
General specification for
wideband solid power amplifier module in CCM1 Scope
1.1 Subject content
SJ 20676-1998
This specification specifies the general requirements, quality assurance regulations and delivery preparation for communication countermeasure solid-state broadband power amplifier modules (hereinafter referred to as "power amplifier modules\). 1.2 Scope of application
This specification applies to ground, ship-borne and airborne communication interference power amplifier modules, and is the basic basis for research, production and acceptance.
1.3 Classification
Class A power amplifier modules for airborne equipment: Class B - power amplifier modules for ground equipment: Class C - power amplifier modules for ship-borne equipment. 2 References
GIB367.5-87 General technical conditions for military communication equipment Packaging, transportation and storage requirements GJB145A--93 Specification for protective packaging
GJB150.1-86 General principles for environmental test methods for military equipment GJB150.2-86 Environmental test methods for military equipment Low pressure test GJB150.3-86 Environmental test methods for military equipment High temperature test GJB150.4-86 Environmental test methods for military equipment Low temperature test 5 Environmental test methods for military equipment Temperature shock test GJB 150.5—86
GJB150.6--86
Environmental test methods for military equipment Temperature-altitude test Environmental test methods for military equipment Humidity test GJB150.9—86
The Ministry of Electronics Industry of the People's Republic of China Issued on March 18, 1998 Implemented on May 1, 1998
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SJ 20676—1998
GJB150.10--86 Environmental test methods for military equipment Fungal test GJB150.11—86 Environmental test methods for military equipment Salt spray test
GJB179A—96 Counting sampling inspection procedures and tables GJB899—90 Reliability identification and acceptance test G3B1181-91 General outline for packaging, loading, storage and transportation of military equipment GJB1182-91 General specification for protective packaging and packing levels of ship electronic countermeasure equipment
GJB 1448-—92
Maintainability test and evaluation
GJB 2072—94
GJB2225.2--94 General Technical Requirements for Ground Electronic Countermeasures Equipment Environmental Requirements GJB2396—95 General Specifications for Airborne Electronic Countermeasures Equipment 3 Requirements
3.1 Qualification Appraisal
The power amplifier modules submitted in accordance with this specification shall be products that have been qualified or approved by the certification. 3.2 Division and main indicators of power amplifier module series 3.2.1 Power amplifier module series
The division of power amplifier modules is mainly based on the operating frequency and output power, as well as the number of modules required to form a solid-state broadband power amplifier. The specific division is shown in Table 1: Table 1 Power amplifier module series division table
Power level
Duration range
1.5~30 MHz
20-~110 MHz
30~-174 MH2
100~500 MH2
500~1 000 MHz
800---1 400 MHz
560-~[ 215 MH2
1 400 ~2 000 MHz
2 000~-2 700 MHz
3.2.2 Main technical indicators
SJ 20676—1998
3.2.2.1 Output power and operating frequency range (see 4.6.3.1) The output power level and operating frequency range are shown in Table 1. 3.2.2.2 Harmonic output (see 4.6.3, 2)
For the power amplifier module in the shortwave frequency band, its harmonic output shall not exceed -8 dBc, and for the power amplifier module in the other frequency bands, its harmonic output shall not exceed -12 dBc.
3.2.2.3 Spurious output (see 4.6.3.3) The spurious output of the power amplifier module shall not exceed -60 dBc. 3.2.2.4 Gain (see 4.6.3.1)
The power gain of the amplifier module for shortwave frequency band shall not be less than 10dB, the power gain of the amplifier module for ultra-shortwave frequency band shall not be less than 8dB, and the gain of the amplifier module for other frequency bands shall not be less than 7B, which shall be specified by the product specifications. 3.2.2.5 Input voltage standing wave ratio (see 4.6.3.4) The input impedance of the amplifier module is generally specified as 50Ω, and the input voltage standing wave ratio is not greater than 2.5:1. 3.2.2.6 Input impedance (see 4.6.3.5) The input impedance of the amplifier module is generally specified as 50Ω. 3.2.2.7 Power supply adaptability (see 4.6.3.7) The nominal value of the power supply voltage of the amplifier module is divided into four levels: (24V), 28V, (32V), 36V, and a variation of 10% is allowed. The values in brackets are not recommended for use. 3.2.2.8 Efficiency (see 4.6.3.8)
The efficiency of the power amplifier module in the shortwave band shall not be less than 40%, the efficiency of the power amplifier module in the ultra-shortwave band shall not be less than 30%, and the efficiency of the power amplifier module in the microwave band shall not be less than 20%. 3.3 Dimensions and weight of the power amplifier module (see 4.6.6) Under the principle of ensuring the performance indicators of the module, the dimensions of the power amplifier module should be as small as possible and the weight should be as light as possible. The dimensions of some power amplifier modules should not be greater than the values listed in Table 2: Table 2 Dimensions of some power amplifier modules
Module parameters
1.5~30 MH2 600 W
2(9--110 MHz100 W
～174 MHz100 W
[00~500 MH2100 W
500~1000MHz50W
Dimensionsf×bmm
200×120
110×76
110x76
100×70
125×50
The height of the amplifier module should not be less than 45mm, and the weight should not be less than 1kg, which shall be specified by the product specification. KAoNrKAca-
3.4 Reliability (see 4.6.1)
SJ 20676—1998
The MTBF of the amplifier module shall not be less than 20000h. 3.5 Maintainability (see 4.6.2)
The on-site maintenance of the amplifier module mainly involves replacing the module, and the replacement time shall not exceed 15min. 3.6 Environmental requirements
3.6.1 Operating temperature
3.6.1.1 Temperature (see 4.6.5.2)
The high temperature requirements of the amplifier modules of Class A, Class B and Class C shall comply with the provisions of 3.10.1 of GJB2396, 5.1 of GJB2225.2 and 3.10.1 of GJB 1448 respectively. 3.6.1.2 Low temperature (see 4.6.5.1)
The low temperature requirements of power amplifier modules of Class A, Class B and Class C shall comply with the provisions of 3.10.1 of GJB2396, 5.2 of GJB2225.2 and 3.10.1 of GJB 1448 respectively. 3.6.2 Storage temperature
3.6.2.1 High temperature (see 4.6.5.2)
High storage shall be carried out in accordance with GJB150.3, with the test temperature of 70C and the test time of 48h: 3.6.2.2 Low temperature (see 4.6.5.1)
Low temperature storage shall be carried out in accordance with GB150.4. The test temperature is -55°C. When the test sample reaches a stable state, it is maintained at 241°C. 3.6.3 Temperature-Altitude (see 4.6.5.4) The temperature-altitude of Class A power amplifier modules is generally in accordance with GIB 150.6. If they can operate normally according to the 6-level steps 3.10.11.12.13, they can be exempted from the commercial temperature, low temperature and low pressure tests. 3.6.4 Vibration (see 4.6.5.6)
The vibration requirements of Class A, Class B and Class IC power amplifier modules shall comply with the provisions of 3.10.11 in GJB2396, 5.6 in GJB2225.2 and 3.10.6 in GJB1448 respectively. 3.6.5 Low air pressure (see 4.6.5.7)
The low air pressure requirements for power amplifier modules for Class A applications shall comply with the provisions of 3.10.1 of GJB2396, and the low air pressure requirements for power amplifier modules for Class B applications shall comply with the provisions of 5.8 of GJB2225.2. 3. 6.6 Damp heat (see 4.6.5.3)
The damp heat requirements for Class A, Class B and Class C shall comply with the provisions of 3.10.3 of GJB2396, 5.3 of GJB2225.2 and 3.10.8 of GJB 1448 respectively. 3.6.7 Temperature shock (see 4.6.5.9)
The damp heat requirements for power amplifier modules for Class A applications shall comply with the provisions of 3.10.2 of GJB2396, and the temperature shock requirements for power amplifier modules for Class B applications shall comply with the provisions of 5.16 of GJB2225.2. 3.6.8 Impact (see 4.6.5.5)
SJ20676--1998
The impact requirements of Class A, Class B and Class C shall comply with the requirements of 3.10.12 in GJB2396, 5.4 in GIB2225.2 and 3.10.5 in GJB 1448 respectively. 3.6.9 Salt spray (see 4.6.5.8)
The power amplifier module shall have the ability to resist salt spray. The salt spray requirements of Class A, Class B and Class IC power amplifier modules shall comply with the requirements of 3.10.5 in GJB2396, 5.12 in GJB2225.2 and 3.10.10 in GJB1448 respectively. 3.6.10 Antibacterial (see 4.6.5.10)
The power amplifier module should have antibacterial ability. The mold requirements of Class A, Class B and Class 1C should comply with the provisions of 3.10.4 of GJB2396, 5.11 of GJB2225.2 and 3.10.9 of GJB1448 respectively. 3.7 Interface
The power amplifier module can be divided into single module application and multi-mode application. Multi-module application does not need to install a high-frequency head. When single module application is used, a through-core capacitor is used for power supply, and the RF interface adopts SMB or N type. 3.8 Interchangeability
The external dimensions of the power amplifier module should comply with the requirements of 3.3. After replacing the module, it should be able to work normally without adjustment, and it should be able to meet the electrical performance index requirements with a slight adjustment. 3.9 Marking and code
MPA-X××/×X×-X××-×- Module classification number Output power: Unit W
Lower frequency limit: (three or four digits) Unit MHz Upper frequency limit: (three or four digits) Unit MHz Power amplifier module
For example: 100～500MH2100WA class power amplifier module is represented as MPA-500/100-100-A. 3.10 Appearance quality
The surface of the power amplifier module should be free of dents, scratches, wall defects, and the coating (plating) layer should not bubble, fall off or crack 4 Quality assurance regulations
4.1 Inspection responsibility
Unless otherwise specified in the contract order, the contractor shall be responsible for completing all inspections specified in this specification. If necessary, the ordering party or the superior appraisal agency has the right to inspect any inspection item described in this specification. 4.1.1 Responsibility for Conformity
All products must conform to all requirements of Chapter 3, Chapter 5 and the product specifications. The inspections specified in this specification shall become an integral part of the contractor's overall inspection system or quality assurance program. If the contract includes the inspection items or requirements specified in this specification, the contractor shall also ensure that the products submitted for acceptance conform to the contract requirements. Quality consistency inspections shall not allow the submission of products that are known to be defective, nor can the ordering party be required to accept defective products. 4.2 Inspection Classification
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The inspections specified in this specification are divided into:
a. Identification inspection:
b. Quality consistency inspection.
4.3 Inspection Conditions
SJ 20676--1998
a. Unless otherwise specified, all tests shall be conducted under the following test conditions: Temperature: 15~~35 °C;
Relative humidity: 20%~80%:
Air pressure: Air pressure at the test site.
b. Unless otherwise specified, the module voltage is the rated voltage during the test. C. The performance indicators of all test equipment and instruments shall be one or one-third of the accuracy of the measured indicators and within the qualified measurement cycle.
d. During the test, modules that have been screened by environmental stress shall be used. The environmental stress screening method shall be carried out according to the relevant provisions of GJB1032 and the product specification requirements.
4.4 Qualification Test
Qualification test is generally carried out when the power amplifier module is designed and finalized, but it shall be carried out during the main design,! When there are major changes in the process, components and materials that affect their important performance and make the original identification results no longer valid, identification inspection should also be carried out.
4.4.1 Number of samples
The number of samples for identification inspection is generally not less than 2. 4.4.2 Inspection items
See Table 3 for identification inspection items.
Table 3 Inspection items
Inspection items
Transmission power
T. Operating frequency range
Harmonic output
Spurious output
Input voltage standing ratio
Output impedance
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Required
Inspection method
Article number
Inspection items
Power adaptability
Power consumption and efficiency
Dimensions and specifications
Reliability
Maintainability
Temperature tolerance
Low pressure
High temperature storage
Low temperature storage
Temperature shock zone
Interchangeability
Marking code
Appearance quality
SJ 20676-1998
Continued Table 3
…Conformity inspection
Requirements
Chapter number
Inspection method
Chapter number
Note: The symbol "O" in the table indicates a mandatory item; "△" indicates an optional item specified in the contract; "II" indicates an item not to be performed. 4.4.3 Qualification criteria
When all inspection items meet the requirements of Chapter 3 and Chapter 4, the inspection is deemed qualified. iiikAoNirkAca
SJ 20676—1998
If any inspection item does not meet the specified requirements, the inspection shall be suspended. The contractor shall analyze the unqualified items, identify the causes of the defects and take corrective measures, and then continue to inspect the unqualified items and related items. If all inspection items meet the specified requirements after continued inspection, the product is still judged as qualified; if one item still does not meet the specified requirements after continued inspection, the product is judged as unqualified. 4.4.4 Maintaining the qualification for identification
In order to maintain the qualification for identification inspection, the contractor shall provide the test data or qualified certification data of the power amplifier module according to the requirements of the ordering party or the superior identification agency. Generally, it is submitted once a year. 4.5 Quality consistency inspection
4.5.1 Inspection grouping
Quality consistency inspection is divided into groups A, B, C and D. 4.5.2 Formation of inspection batches
The formation of inspection batches shall comply with the provisions of Section 5.4.6 of GJB179A. 4.5. 3 Group A inspection
4.5.3.1 Inspection items
The inspection items of Group A are shown in Table 3.
4.5.3.2 Sample Plan
For the batch of amplifier modules submitted by the contractor for inspection, full inspection or one-time sampling according to the general inspection level II in GJB179A can be adopted.
The quality level of the sampling inspection batch (acceptable quality level AQL) shall be specified in the product specification or contract. It can be determined by negotiation between the contractor and the ordering party. 4.5.3.3 Qualification Criteria
According to the inspection results, if the number of defects is not greater than the specified value, the batch is judged to be qualified for the A group inspection: otherwise, the batch is judged to be unqualified for the A line inspection.
Defect classification is shown in Appendix A (Supplement)
4.5.3. 4 Re-inspection
For the batch that fails the A group inspection, the contractor shall analyze the batch of amplifier modules, find out the cause of the defects and take corrective measures, and then resubmit for inspection. The resubmitted batch shall be separated from the new batch and marked with "resubmitted batch".
When the re-inspection is qualified, the quality level should be appropriately improved, starting from the stage where the quality problem is found, and additional inspections of the unqualified items and related items should be carried out. When the re-inspection is unqualified, the inspection should be stopped. 4.5.3.5 Sample processing
For the power amplifier modules found to be defective in the batches that have passed the Group A inspection, the contractor shall be responsible for repairing them and meet the requirements of the product specifications before they can be delivered in batches according to the contract. 18-
4. 5. 4 Group B inspection
4.5.4.1 Inspection items
The Group B inspection items are shown in Table 3.
4.5.4.2 Sampling plan
4.5.4.2.1 Continuous batches
4. 5. 4. 2. 2 Isolated batches
SJ 20676--1998
The sampling inspection of isolated batches or batches with only a few children shall be carried out in accordance with the relevant provisions of Article 5.5 of GJB179A. The corresponding limit quality (LQ) shall be specified in the product specification and contract. For the classification of defects, see Appendix A (Supplement). 4.5.4.3 Qualification criteria
According to the inspection results, if the number of defects is not greater than the specified value, the batch is judged to have passed the Group B inspection: otherwise, the batch is judged to have failed the Group B inspection.
4.5.4.4 New inspection
For batches that fail the B group inspection, the contractor shall analyze the batch of power amplifier modules, find out the cause of the defects and take corrective measures, and then resubmit for inspection. The resubmitted batch shall be separated from the new batch, and marked with "new batch", and stricter inspection shall be adopted. If the re-inspection is qualified, the batch is still judged to have passed the B group inspection; if the re-inspection is unqualified, the batch is judged to have failed the B group inspection.
4.5.4.5 Sample processing
For batches that pass the B group inspection, the contractor shall be responsible for repairing the defective power amplifier modules and after they meet the requirements of the product specifications, they can be delivered as a whole batch according to the contract. 4.5.5 Group C inspection
4.5.5.1 Inspection items
The C group inspection items are shown in Table 3.
4.5.5.2 Sampling plan
Unless otherwise specified, samples of group C are taken from the power amplifier modules that have passed the inspection of groups A and B. The sample quantity shall be based on the requirements of this inspection. The single sampling plan selected according to 5.4.5 General Inspection Level I in GJB179A, and the AQL value shall be determined by negotiation between the ordering party and the contractor. 4.5.5.3 Qualification criteria
According to the inspection results, if the number of defects does not exceed the specified value, the inspection of group C is qualified; otherwise, the inspection of group C is judged to be unqualified.
4.5.5.4 Re-inspection
For batches that fail the group inspection, the contractor shall sort the batch of power amplifier modules, find the cause of the defects and take corrective measures, and then resubmit for inspection. 9
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