Testing method of radio frequency power tubes
A technology of radio frequency power and testing methods, which is applied in the direction of measuring electricity, measuring devices, and measuring electrical variables, etc. It can solve problems such as the difficulty of developing samples, the inability to finely classify power tubes, and the lack of in-depth research on new DOHERTY power amplifiers, etc., to reduce failures rate, improve reliability and stability, and improve the effect of defect rate
Inactive Publication Date: 2013-09-04
博威科技(深圳)有限公司
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[0013] From the above test methods, it can be seen that the current production enterprises have not done enough research on the new DOHERTY power amplifier technology, and it is difficult to effectively apply DOHERTY power amplifiers to mass products, and it is even difficult to realize R&D samples.
Moreover, each production enterprise currently does not have an effective detection and evaluation analysis method to determine the influence of power tube parameters on the performance of DOHERTY power amplifiers, and there is no effective mass testing process and equipment. They can only rely on the extensive data provided by device manufacturers to make judgments. It is impossible to finely classify the power tubes, so that the performance of the power tubes cannot be fully utilized
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[0035] The present invention provides a test device for a radio frequency power tube. In order to make the purpose, technical solution and effect of the present invention clearer and clearer, the present invention will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0036] The test method of the radio frequency power tube that the embodiment of the present invention provides, such as figure 2 As shown, it includes the following steps:
[0037] S110, baking the radio frequency power tube.
[0038] When baking, use a temperature of 140°C±10°C to bake all the radio frequency power tubes for 24 hours. Because the RF power tube is a moisture-sensitive device, prolonging the baking time can fully solve the moisture-sensitive problem of the RF power tube, and compared with the exist...
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The invention discloses a testing method of radio frequency power tubes. The method comprises the following steps of: baking the radio frequency power tubes; testing the static resistance of each radio frequency power tube; performing a welding-free radio frequency parameter test on each radio frequency power tube; and classifying the radio frequency power tubes according to pairing voltage and pairing gain. In the testing method of the radio frequency power tubes, whether the power tube impedance accords with requirements is checked before the radio frequency power tubes are welded on a printed circuit board (PCB), and the power tubes are carefully classified according to gains of the power tubes and threshold turn-on voltage to ensure that parameters of the power tubes meet technical requirements of a novel DOHERTY power amplifier preferably, the performance of the power tubes is given into full play, the reliability and the stability of a radio frequency power amplifier is improved, the failure rate of the power tubes is reduced, and the rejection rate in the production process is improved.
Description
technical field [0001] The invention relates to the technical field of testing the performance of electronic devices, in particular to a testing method for a radio frequency power tube. Background technique [0002] Compared with the traditional power amplifier, the new DOHERTY power amplifier (DOHERTY power tube) has great advantages in terms of efficiency and power. The deviation of the balance will make the performance of the power tube not fully exerted, and the overall power and efficiency performance of the power amplifier will be reduced. [0003] Moreover, the DOHERTY power amplifier also has very strict requirements on the threshold value of the threshold of the main and auxiliary tubes. If the deviation of the threshold of the threshold of the main and secondary tubes is slightly larger, it will easily cause the impedance mismatch of the circuit, and the main power tube will be overloaded, resulting in Power tube failed. [0004] At present, various DOHERTY power...
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IPC IPC(8): G01R31/00
Inventor 李健锋罗鹏何龙云郭浩胜郑涛
Owner 博威科技(深圳)有限公司
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