Composition and Recommendation of High Frequency RF Signal Generator

　　RF signal generator, also known as RF (radio frequency abbreviation) signal generator, can usually output various waveforms and amplitudes of RF signals in the low and high frequency bands. It is an essential basic testing instrument used in RF microwave testing, time-frequency testing, sensor and other RF trigger equipment development. The usage of signal generators differs from other testing instruments such as frequency meters, oscilloscopes, spectrographs, etc. Signal generators are used as standard devices in various testing and development. Currently, there are various industry regulations in China that involve the participation of signal generators.

　　RF signal generators are usually composed of four components: an oscillator, a controller, an amplifier, and an attenuator. The oscillator is mainly used to receive the command signal from the controller and output the required frequency signal. The controller is similar to the human brain and is used to send instructions to each module in the device. It is generally recommended that it can be remotely controlled. The amplifier is mainly used to amplify the power level of the frequency signal output by the internal oscillator of the device, The function of an attenuator is to help ensure impedance matching at the output end of the device during testing, and to ensure stable and accurate output levels through automatic attenuation of the device.

　　The RF signal generator on the market usually supports outputting signals from mHz to 3G, 6G or higher. The signal generator in the picture is a domestically produced RF signal generator, which has the advantages of convenient after-sales and technical support compared to imported products on the market. In addition, this device is equipped with a large touch screen, which is easy to operate and fast to use. The device standard includes a constant temperature crystal oscillator as an internal frequency reference, The frequency accuracy is better than 3E-8, and the second stability is better than 3E-11/S. It can choose a higher standard rubidium atomic clock oscillator, and also has an external 10MHz reference input port. After connecting the external reference, it automatically switches between the internal and external frequency standard modes, and can output up to 30GHz frequency output. It adopts direct digital synthesis and phase-locked technology, which is very suitable for users to use in the development and testing of various RF and microwave bands within 0-30MHz, including P, L, S, C, X, Ku K and Ka bands, supporting RS232C serial or network communication for remote programming, have advantages such as broadband, low phase noise, low harmonics, and high cost-effectiveness.

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