The data processing circuit consists of AD digital to analog conversion ADC0809, AT89C51 microcontroller, and display circuit. ADC0809 is an eight bit eight channel single-chip AD successive approximation converter made using CMOS technology. The successive approximation converter includes one comparator, one digital to analog conversion controller, one successive approximation register (SAR), and one logic control unit. The successive approximation in the conversion is controlled by the logic unit according to the principle of division. Its principle is simple, easy to implement, and there is no delay problem. AT89C51 is a high-performance 8-bit microcontroller with 4K bytes of FLASH programmable erasable read-only memory. Its instruction system is fully compatible with MCS-51, making it easy to apply in various control fields. In the design, P0 port serves as the data port, P1 port serves as the switch input/output control, P2 serves as the display module and address control line for ADC0809, and the IN terminal serves as the keyboard interrupt input terminal, thus forming a simple microcontroller measurement system. The voltage signal after LM331F/conversion is sent to ADC0809 for digital to analog conversion. The AT89C51 microcontroller reads the converted data in real time, calculates it through internal software, and sends the results to the display screen for display. The displayed content mainly includes the current of each power amplifier tube, power supply voltage, output power, and reflected power. The input switch detection signal is directly sent to the P1 port of AT89C5 after photoelectric isolation. The display circuit adopts a 16x2 character dot matrix LCD display module, which has 192 built-in characters (5x7 dot font), strong indication function, can form various input, display and shift modes, and has the characteristics of simple interface with MCS-51 series microcontrollers and simple software programming.

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فرکانس کاری تقویت‌کننده‌های توان RF بسیار بالا است، اما باند فرکانسی نسبتاً باریک است. تقویت‌کننده‌های توان RF عموماً از یک شبکه انتخاب فرکانس به عنوان مدار برش منفی استفاده می‌کنند. تقویت‌کننده‌های توان RF را می‌توان بر اساس زوایای هدایت مختلف جریان به سه حالت کاری A، B و C طبقه‌بندی کرد. زاویه هدایت جریان تقویت‌کننده کلاس A 360 درجه است که برای تقویت سیگنال‌های کوچک و توان کم مناسب است. زاویه هدایت جریان تقویت‌کننده کلاس B برابر با 180 درجه است، در حالی که زاویه هدایت جریان تقویت‌کننده کلاس C کمتر از 180 درجه است. هر دو کلاس B و C برای شرایط کاری با توان بالا مناسب هستند، که کلاس C بالاترین توان خروجی و راندمان را در بین سه حالت کاری دارد. اکثر تقویت‌کننده‌های توان RF در کلاس C کار می‌کنند، اما اعوجاج شکل موج جریان تقویت‌کننده‌های کلاس C بسیار زیاد است و فقط می‌توان از آن‌ها برای تقویت توان رزونانس بار با استفاده از مدارهای تنظیم‌شده استفاده کرد. به دلیل قابلیت فیلتر کردن مدار تنظیم، جریان و ولتاژ مدار همچنان به یک شکل موج سینوسی با حداقل اعوجاج نزدیک می‌شوند.