This is a conference extension of the paper ‘Investigation on mature storm cloud’s electric field using long airborne antennas’. The use vertical antennas (including VEDs—Vertical Electric Dipoles), lifted up by aerostats to high altitudes without being anchored ground, presents numerous advantages in comparison with large terrestrial VLF (Very Low Frequency) antenna structures. A slow-moving f...

uring the last few years, a number of articles have appeared in the publications of this Society that deal with the radiation from simple filamentary current distributions and simple wire antennas [l-61. The purpose of these articles generally is to add to the physical understanding of the process of radiation: that is, to add to the understanding of where radiation originates 011 these structu...

The usage of ultra-wideband (UWB) technology is growing in many communication systems such as radar systems, communication and measurement systems and imaging systems mainly because unlike the other wireless technologies UWB is not restricted to using a narrow waveband and it has high speed data rate. The large transmission bandwidth makes UWB-based electronic device resistive to interferences ...

A method for calculating the complex capacitance of small with respect to wavelength, normally open antennas is proposed. Analytical expressions determination mutual potential coefficient any two arbitrarily arranged linear conductors are obtained. The proposed technique can be useful in assessing losses wire placed close proximity semiconductor surface, as well their input resistance.

Antennas which are fed by a “shunt” or other method in which a part of the antenna comprises a portion of an electrically small one-turn loop, so that the feed is in essence a sort of autotransformer, are quite common, particularly at frequencies above 10 megahertz. Shunt feed arrangements for grounded vertical tower radiators, such as those used for medium wave broadcasting, are less common. A...

We have developed a radio frequency antenna demonstrator kit as microcontroller based wireless equipment. This system is hybrid combination of software and hardware. study focuses on the demonstration regarding transmitting receiving signals using nRF24L01 device in conjunction with PCB Antenna which are inverted F antenna, connected small piece wire AN043 antenna. To analyze performance this a...