Radiation characteristics and electromagnetic compatibility of 5-20 KHz ac plasma antenna

In order to meet the needs of engineering, plasma antenna must meet the requirement in terms of gain, bandwidth, noise, electromagnetic compatibility (EMC) and so on. A plasma antenna prototype was established by 5-20 KHz high voltage ac power, whose radiation characteristics and electromagnetic compatibility was tested and analyzed. Results show that 5-20 KHz ac plasma antenna is of broadband impedance characteristics. Compared with 50 Hz ac plasma antenna, the noise reduces and the gain increases from 150 MHz to 350 MHz. When plasma antenna connected to radio is on, the radio can receive signals. The interference to radio is much lower than RF surface wave plasma antenna and 50 Hz ac plasma antenna. It is of a certain electromagnetic compatibility.