Research and development of the antenna array for ground penetrating radar

The design and results of investigation of the antenna array for ground penetrating radar are presented. The antenna array is intended for measurement of the electrical properties of the road coating and finding of irregularities at monitoring the quality of roads. Antenna elements are made by PCB technology on the plate of FR4. Each antenna element is placed in a reflector formed by aluminum corner. The results of simulation in CST Studio Suite and the results of measurements of the characteristics of the antenna elements, and their mutual influence are presented. The developed antenna array can be used at the ultrawideband pulse excitation, and at a scanning of continuous frequencies in the range of 0.5–2 GHz

Antenna system of ultrawideband borehole radar based on loaded electric dipoles

The design of an ultrawideband borehole radar antenna system based on loaded electric dipoles is presented. The antennas are designed to operate in a dielectric medium in the frequency range of 0.25–1 GHz. The results of calculations and measurements of antenna characteristics are presented. The results of sounding the objects when placing antennas in a medium with a relative permittivity of 4 are presented as well

Ultrawideband combined antenna with improved matching

To study the immunity of electronic equipment to ultrawideband irradiation, a combined antenna with improved matching has been created. In contrast to the previously presented, a novel antenna has a modified input node with a flat part instead of a cylindrical one. As a result of optimizing the geometry of the antenna electrodes, a matching band with the feeder of 0.38-2.4 GHz was achieved by the VSWR = 2. The results of the investigations of antenna characteristics in the frequency domain, as well as the waveforms of the radiated short ultrawideband pulses are presented

Research and development of the antenna array for ground penetrating radar

The design and results of investigation of the antenna array for ground penetrating radar are presented. The antenna array is intended for measurement of the electrical properties of the road coating and finding of irregularities at monitoring the quality of roads. Antenna elements are made by PCB technology on the plate of FR4. Each antenna element is placed in a reflector formed by aluminum corner. The results of simulation in CST Studio Suite and the results of measurements of the characteristics of the antenna elements, and their mutual influence are presented. The developed antenna array can be used at the ultrawideband pulse excitation, and at a scanning of continuous frequencies in the range of 0.5–2 GHz

Ultrawideband dipole receiving antenna for measuring short pulses with extended bandwidth

This article presents the design of an ultrawideband active integrated antenna based on an electric dipole and the results of its testing. The antenna is intended to perform low‐distortion measurements of the instantaneous electric field strength of short pulses whose spectra lie within the frequency range from 0.05 to 3 GHz. The antenna is fabricated using the technology of printed circuit boards on a 1‐mm thick FR4 plate of dimensions 60 × 28 mm. It has a built‐in balancing‐to‐unbalancing unit and an unbalanced output. The difference in output voltage pulse waveform between the proposed antenna and a reference TEM‐antenna is insignificant

Ultrawideband dipole receiving antenna for measuring short pulses with extended bandwidth

This article presents the design of an ultrawideband active integrated antenna based on an electric dipole and the results of its testing. The antenna is intended to perform low‐distortion measurements of the instantaneous electric field strength of short pulses whose spectra lie within the frequency range from 0.05 to 3 GHz. The antenna is fabricated using the technology of printed circuit boards on a 1‐mm thick FR4 plate of dimensions 60 × 28 mm. It has a built‐in balancing‐to‐unbalancing unit and an unbalanced output. The difference in output voltage pulse waveform between the proposed antenna and a reference TEM‐antenna is insignificant

Ultrawideband combined antenna with improved matching

To study the immunity of electronic equipment to ultrawideband irradiation, a combined antenna with improved matching has been created. In contrast to the previously presented, a novel antenna has a modified input node with a flat part instead of a cylindrical one. As a result of optimizing the geometry of the antenna electrodes, a matching band with the feeder of 0.38-2.4 GHz was achieved by the VSWR = 2. The results of the investigations of antenna characteristics in the frequency domain, as well as the waveforms of the radiated short ultrawideband pulses are presented

A high-power source of ultrawideband radiation with reflector antenna

Characteristics of a source of linearly-polarize

A high-power source of ultrawideband radiation with reflector antenna

Characteristics of a source of linearly-polarize