A simulation and experimental study of a directional coupler with transformers on ferrite rings has been carried out. The operating frequency range is from 100 to 500 MHz. The directional coupler was modeled in the Microwave Office application package. An experimental study was carried out using a vector analyzer of the type "Overview-103". The frequency dependences of the working attenuation and transient attenuation are obtained. The directional coupler can be used in transmitting and measuring technology.

Keywords: Directional coupler, working attenuation, transient attenuation, decoupling, scheme, design

The scheme and design of the detector operating in the range of operating frequencies from at least 1 to 1250 MHz are described. An experimental study of the frequency dependence of the voltage sensitivity B_u, as well as the amplitude characteristic at four frequencies. It is shown that the detector has a high frequency response uniformity and can be used in measuring and receiving-transmitting equipment.

Keywords: the entrance detector, the voltage sensitivity, the amplitude, the unevenness of sensitivity on the voltage

A study of the directional coupler range 1-4GHz. The description of the construction on a symmetrical strip line with a lateral connection is given. The amplitude-frequency characteristics were simulated using the Microwave Office package. The model of the directional coupler is experimentally investigated, the following results are obtained: the working attenuation does not exceed 1.7 dB, the transient attenuation does not exceed 10 dB.

Keywords: Directional coupler, frequency response, flatness, symmetric stripline

The article studies the power divider of 10-centimeter range. A description of the scheme and design of the power divider on the air-strip transmission line. The analysis of the amplitude-frequency characteristics of the power divider in the forward and lateral shoulders with the help of the Microwave Office package is carried out. The model of the power divider is experimentally studied, the following results are obtained: in the band from 2.4 to 3.7 GHz, losses do not exceed 4.3 dB, and the unevenness does not exceed 1.7 dB.

Keywords: power Divider, directional coupler, plume bridge, amplitude-frequency characteristic, losses, unevenness