Mesoband Pulse Radiator Design With Circuit Model Analysis of Spark Gap Switch

Author

Sang Heun Lee ; Jihwan Ahn ; Young Joong Yoon ; Sang Hoon Nam ; Woo Sang Lee ; Joon Ho So

Author_Institution

Dev. Div., Hyundai Motor Co., Hwasung, South Korea

Volume

41

Issue

11

fYear

2013

fDate

Nov. 2013

Firstpage

3143

Lastpage

3150

Abstract

In this paper, a mesoband pulse radiator fed by a spark gap switch is designed, and its radiation characteristics are analyzed. Initially, a modified equivalent circuit model of spark gap switch is proposed to enable detailed explanation and fast design. Then, dual resonant characteristic due to the higher order mode of a mesoband pulse radiator is newly analyzed by changing the dipole length and radius. According to the analyzed results, the variation of the dipole length affects not only the radiating power, but also the operating frequency and bandwidth. The measured 3-dB bandwidth of the designed pulse radiator is about 57% (λ = 1.15 m), meeting the need for a mesoband condition. The radiated electric field at 4 m from the radiator has a peak of 7.19 kV/m.

Keywords

dipole antennas; equivalent circuits; pulsed power supplies; pulsed power switches; spark gaps; circuit model analysis; dipole length; dual resonant characteristic; higher order mode; mesoband condition; mesoband pulse radiator design; mesoband pulse radiator fed; modified equivalent circuit model; radiating power; radiation characteristics; spark gap switch; Dipole antennas; Frequency-domain analysis; Integrated circuit modeling; Resonant frequency; Sparks; Switches; Switching circuits; Dipole antenna; mesoband; pulse radiator; spark gap switch;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2013.2283072

Filename

6623148