Abstract
An experimental study of the diode detector of the centimeter wavelength range has been carried out. A brief description of the circuit and design is given. The experiment was carried out on an installation containing a standard signal generator, a digital oscilloscope, a power supply, and a offset panel. The results of the experiment are the amplitude and amplitude-frequency characteristics of the detector. The following parameters have been shown to be achieved: operating frequency range of at least 8-18 GHz, voltage sensitivity of at least 100 μV / μW, dynamic range of input signals at least 35 dB, voltage sensitivity unevenness of no more than 1.6 dB.
Highlights
Microwave detectors are widely used in transmitting, receiving and measuring equipment
The purpose of this work is an experimental study of a wideband centimeter range detector
The following requirements are imposed on the detector: - operating frequency range from 8 to 18 GHz; - voltage sensitivity with a load resistance of 15 kΩ and an input power of 0.1-2 mW should be at least 100 μV / μW; - the dynamic range of input signals is not less than 35 dB; - the polarity of the output signal is negative; - input resistance 50 Ohm; - load resistance 2 kOhm
Summary
Microwave detectors are widely used in transmitting, receiving and measuring equipment. There are numerous publications on microwave detectors, including monographs [1,2], tutorials [3], articles [4,5,6], patents [7], advertisements [8], the increased requirements for microwave detectors stimulates further research. The purpose of this work is an experimental study of a wideband centimeter range detector. The object of research is a microstrip detector with a frequency overlap of more than an octave and a complex matching circuit at the input. The following requirements are imposed on the detector: - operating frequency range from 8 to 18 GHz; - voltage sensitivity with a load resistance of 15 kΩ and an input power of 0.1-2 mW should be at least 100 μV / μW; - the dynamic range of input signals is not less than 35 dB; - the polarity of the output signal is negative; - input resistance 50 Ohm; - load resistance 2 kOhm
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