This standard specifies the types of military microwave electrically adjustable attenuators, as well as their main performance parameters, interface forms and dimensions. This standard applies to the selection of component-type microwave electrically adjustable attenuators during use or development. SJ 20804-2001 Microwave circuit series and types Microwave attenuator series types SJ20804-2001 Standard download decompression password: www.bzxz.net

Military Standard of Electronic Industry of the People's Republic of China FL5962
Series and products of microwave circuitsProducts of microwave attenuator seriesIssued on December 27, 2001
Implementation on January 1, 2002
Approved by the Ministry of Information Industry of the People's Republic of China 1 Scope
Military Standard of Electronic Industry of the People's Republic of China Series and products of microwave circuits
Series and products of microwave circuitsProducts of microwave attenuator series1.1 Subject Content
SJ20804—2001
This standard specifies the varieties of military microwave electrically adjustable attenuator series as well as the main performance parameters, interface forms and dimensions. 1.2 Scope of application
This standard applies to the selection of component-type microwave electrically tuned attenuators when they are used or developed. 1.3 Purpose
The purpose of this standard is:
To provide military equipment designers and manufacturers with standard series and varieties of microwave electrically tuned attenuators suitable for military use: a.
b. To minimize the use of similar non-standard varieties and improve the level of standardization and serialization; c. To control the development of microwave electrically tuned attenuators and meet the needs of military equipment with fewer varieties. 2 Referenced documents
GB11449—89 Waveguide flange
SJ/T11073—96.SMA type RF coaxial connectorSJ20612—96 Microwave circuit parameter text symbols 3 Definitions
3.1 Symbols and codes
3.1.1 Parameters
The parameter symbols used in this standard for microwave electrically tuned attenuators shall comply with the provisions of SJ20612. 4 General requirements
4.1 Criteria for inclusion in series
Main performance parameters are applicable to a variety of applications, have a large application range, and are standard general-purpose varieties with non-repetitive structures, installation methods and performance.
4.2 Factors constituting series
The series of microwave electrically tuned attenuators is mainly composed of factors such as model, main performance parameters, connector form and external dimensions. 4.3 Principles for series arrangement
The Ministry of Information Industry of the People's Republic of China issued KAONKAca on December 27, 2001
Implementation on January 1, 2002
SJ20804—2001
Microwave electrically tuned attenuators are arranged from low to high according to the high-end frequency of the frequency band, and from narrow to wide according to the bandwidth when the high-end frequencies are the same. 4.4 Working environment temperature
Unless otherwise specified, the working environment temperature of the microwave electrically tuned attenuators listed in this standard is -55°C to 85°C. 4.5 Model
Unless otherwise specified, the model of the microwave electrically tuned attenuator consists of the following five parts. WFS
5 Detailed requirements
Part 5: Use one character to indicate the maximum power handling of the microwave electrically tuned attenuator
A indicates power of 0.1W
B indicates power of 1.0W
C indicates power of 2.0W
Part 4: Use one character to indicate the maximum attenuation of the microwave electrically tuned attenuator
D indicates 60dB
X indicates 40dB
Part 3: Use four digits to indicate the frequency range of the microwave electrically tuned attenuator in GHZ.
The first two digits indicate the low frequency of the frequency range. When it is less than 1GHz, it is indicated by 00
The last two digits indicate the high frequency of the frequency range. Part 2: Two characters indicate the type of microwave electric attenuatorAC indicates coaxial analog electric attenuator
DC indicates coaxial digital attenuator
AG indicates waveguide electric attenuator
Part 1:
W indicates microwave
F indicates component
S indicates attenuator
5.1 Varieties of microwave electric attenuator series
5.1.1 Varieties of coaxial analog electric attenuator are shown in Table 1.5.1.2 Varieties of coaxial digital attenuator are shown in Table 2.5.1.3 Varieties of waveguide electric attenuator are shown in Table 3.5.2 Appearance drawing
Unless otherwise specified, the appearance drawing of microwave electric attenuator shall comply with the provisions of the corresponding drawing number. All dimensions are in millimeters. 5.3 Interface
The input interface and output interface shall comply with the provisions of the corresponding tables and figures: the size requirements of the interface shall comply with the provisions of GB11449 and SJ/T11073 respectively
WFSAC0102XA
WFSAC0102XB
WFSAC0102XC
WFSAC0102DA
WFSAC0102DB
WFSAC0102DC
WFSAC0102 204XA
WFSAC0204XB
WFSAC0204XC
WFSAC0204DA
WFSAC0204DB
-WFSAC02 04DC
WFSAC0408XA
WFSAC0408XB
WFSAC0408XC
WFSAC0408DA
WFSAC0408D B
WFSAC0408DC
WFSAC0812XA
WFSAC0812XB
WFSAC0812XC
WFSAC0812DA| |tt||WFSAC0812DB
WFSAC0812DC
WFSAC1218XA
WFSAC1218XB
WFSAC1218XC||tt ||WFSAC1218DA
WFSAC1218DB
WFSAC1218DC
WFSAC0818XA
WFSAC0818XB
WFSAC0818XC
WFSAC0818DA
WFSAC0818DB
WFSAC0818DC
SJ20804—2001
Coaxial Types of analog electronically adjustable attenuators
-KAoNiKAca=
Interface form
Figure 1-1
Figure 1-2
Figure 1-3
Figure 1-4
Figure 1-5
Figure 1-6
WFSAC0118XA
WFSAC0118XB
WFSAC0118XC
WFSACO118DA
WFS ACOHI8DB
42WFSACO118DC
WFSDC0102XA
WFSDC0102XB
WFSDC0102XC
WFS DC0102DA
WFSDC0102DB
WFSDC0102DC
WFSDC0204XA
WFSDC0204XB
WFSDC0 204XC
WFSDC0204DA
WFSDC0204DB
WFSDC0204DC
WFSDC0408XA
WFSDC040 8XB
WFSDC0408XC
WFSDC0408DA
WFSDC0408DB
WFSDC0408DC
WFSDC0812XA
WFSDC0812XB
WFSDC0812XC
WFSDC0812DA
WFSDC0812DB
24WFSDC0812DC
SJ20804—2001
Continued Table 1
Main performance parameters
Varieties of coaxial CNC attenuators
Main performance parameters
Attenuation accuracy
±(0.2+3%A)
±(0.25+4%A)
Interface form
Interface form
or for
SMASMA
Figure 1-7
Figure 2-2
Figure 2-3
Figure 2-4
WFSDC1218XA
WFSDC1218XB
WFSDC1218XC
WFSDC1218 DA
WFSDC1218DB
WFSDC1218DC
WFSDC0818XA
WFSDC0818XB
WFSDC0818X C
WFSDC0818DA
WFSDC0818DB
WFSDC0818DC
12.4~18.0
WFSAG0204XA|| tt||WFSAG0204XB
WFSAG0204XC
WFSAG0204DA
WFSAG0204DB
WFSAG0204DC|| tt||WFSAG0408XA
WFSAG0408XB
WFSAG0408XC
WFSAG0408DA
WFSAG0408DB||t t||WFSAG0408DC
WFSAG0812XA
WFSAG0812XB
WFSAG0812XC
WFSAG0812DA
WFSAG0812DB
WFSAG0812DC
SJ20804--2001
Continued Table 2
Main Performance
Attenuation Accuracy
±( 0.3+5%A)
Table 3 Types of waveguide electrically adjustable attenuators
Main performance parameters
-KAoNiKAca=
or torr
Interface type
Input and output
SMA|Figure 2-4
Interface type
Figure 3-1
Figure 3-2
Figure 3-3
WFSAG1218XA
WFSAG12 18XB
WFSAG1218XC
WFSAG1218DA
WFSAG1218DB
WFSAG1218DC
WFSAG081 8XA
WFSAG0818XB
WFSAG0818XC
WFSAG0818DA
WFSAG0818DB
WFSAG0818 DC
WFSAG2640XA
WFSAG2640XB
WFSAG2640XC
WFSAG2640DA
WFSAG2640D B
WFSAG2640DC
12.4~18.0
18.0~26.5
26.5~40.0
SJ20804—2001||tt| |Continued Table 3
Main performance
SMA-K
Figure 1-1
Interface form
Figure 3-4
Figure 3-5
Figure 3-6
SJ20804-2001
SMA-K
Figure 1—2
End (SMA-K)
Figure 1-3
FKAoNrKAca
SJ 20804.---2001
Bias terminal (SMA-K)
Figure 1—4
Bias terminal (SMA-K)
Figure 1—5
SJ20804—2001
Bias terminal (SMA-K
Figure 1-6
Micro-position terminal 1
Pot-position terminal 2
Figure 1-7
-TKAONiKAca-
SJ20804—2001
Figure 2—1
Figure 2—2
SJ20804—2001
Figure 2—3
Figure 2—4
TrKAONTKAca-0
SJ20804—2001
Continued Table 3
Main performance
SMA-K
Figure 1-1
Interface form
Figure 3-4
Figure 3-5
Figure 3-6
SJ20804-2001
SMA-K
Figure 1—2
Terminal (SMA-K)
Figure 1-3
FKAoNrKAca
SJ 20804.---2001
Bias terminal (SMA-K)
Figure 1—4
Bias terminal (SMA-K)
Figure 1—5
SJ20804—2001
Bias terminal (SMA-K
Figure 1-6
Micro-position terminal 1
Pot-position terminal 2
Figure 1-7
-TKAONiKAca-
SJ20804—2001
Figure 2—1
Figure 2—2
SJ20804—2001
Figure 2—3
Figure 2—4
TrKAONTKAca-0
SJ20804—2001
Continued Table 3
Main performance
SMA-K
Figure 1-1
Interface form
Figure 3-4
Figure 3-5
Figure 3-6
SJ20804-2001
SMA-K
Figure 1—2
Terminal (SMA-K)
Figure 1-3
FKAoNrKAca
SJ 20804.---2001bZxz.net
Bias terminal (SMA-K)
Figure 1—4
Bias terminal (SMA-K)
Figure 1—5
SJ20804—2001
Bias terminal (SMA-K
Figure 1-6
Micro-position terminal 1
Pot-position terminal 2
Figure 1-7
-TKAONiKAca-
SJ20804—2001
Figure 2—1
Figure 2—2
SJ20804—2001
Figure 2—3
Figure 2—4
TrKAONTKAca-
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