GB/T 3789.16-1991 Test methods for electrical properties of transmitting tubes Test methods for pulse output power

This standard specifies the test method for the pulse output power of the transmitting tube. This standard is applicable to the test of the pulse output power of the space charge controlled oscillator and power amplifier tube with anode dissipation power above 25W and frequency below 1000MHz. GB/T 3789.16-1991 Test method for electrical performance of transmitting tube Test method for pulse output power GB/T3789.16-1991 Standard download decompression password: www.bzxz.net

National Standard of the People's Republic of China
Test methods for electrical properties of transmitting tubes
Test methods for pulse output power
Measurements of the electrical properties ot transmitting tubesMensuring methods of pulse output power Subject content and applicable scope
GB/T3789.16-91
Administered by GB 9789. 16-83
This standard specifies the test methods for pulse output power of transmitting tubes. This standard is applicable to the test of pulse output power of space charge controlled oscillation and power amplifier tubes with anode dissipation power above 25W and frequency below 1000MHz.
2 Reference standards
GB/T3789.1 General test methods for transmitting tube electrical performance GB/T3789.15 Test methods for transmitting tube electrical performance Test methods for output power 3 Terms
Pulse output power pulse output power Pulse output power refers to the output power of the electron tube when the anode loop resonates and the load matches best under the pulse working state where the envelope specified by the electron tube is rectangular (or approximately rectangular). 4 Test equipment and test rules
The test equipment and test rules shall comply with the provisions of GB/T3789.1. The fundamental resonant impedance of the loop shall be much higher than the harmonic impedance, and the loaded quality factor Q of its resonant loop shall not be less than 5. In the test equipment, a neutralization circuit is allowed, but it shall not affect the test accuracy. 5 Test methods
5.1 Test method for pulse output power of electron tubes of common cathode RF amplifiers 5.1.1 Determine the pulse output power by measuring the anode DC input power and the anode power consumption. Pap -Www.bzxZ.net
Wherein, P—pulse output power, kw,
Pu——the DC input power of the electron tube anode, kW; P.--the power dissipated by the electron tube anode, kw;
-the working ratio, which is equal to the ratio of pulse intensity to period. D
Note: Attention should be paid to the influence of cathode and anode radiation power on the measurement of anode power dissipation P. 5.1.2 The pulse output power is determined by the power on the measured RF load and the efficiency of the anode loop. (1)
The test method shall be carried out in accordance with Article 5.1.3 of GB/T3789.15. If the power measured on the load is the average power Pz, the pulse output power is calculated according to formula (2): GB/T 3789. 16-91 If the power measured on the load is the pulse power PL, the pulse output power is calculated according to formula (3): Po, Pre 5.2 The pulse output power of the electron tube of the common-gate RF amplifier shall be measured according to the method in Article 5.2 of GB/T3789.15, and the duty ratio D shall be taken into account. 5.3 The pulse output power of the electron tube of the self-excited oscillator shall be measured according to the method in Article 5.3 of GB/T3789.15, and the duty ratio D shall be taken into account. Additional remarks: This standard is proposed by the Ministry of Machinery and Electronics Industry of the People's Republic of China. This standard was drafted by the Electronic Standardization Institute of the Ministry of Machinery and Electronics Industry and Factory 779.
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