DocumentCode :
2301872
Title :
Analysis of Mesoband Single Element Pulsed Ring-Down Antennas for Implementation in Phased Array Systems
Author :
Belt, D. ; Mankowski, J. ; Walter, J. ; Dickens, J. ; Kristiansen, M.
Author_Institution :
Dept. of Electr.&Comput. Eng., Texas Tech Univ., Lubbock, TX
fYear :
2008
fDate :
27-31 May 2008
Firstpage :
152
Lastpage :
155
Abstract :
In recent years, the pulsed ring-down antenna has become of great interest due to its compact size and high power on target potential. Since these systems are fairly new in study, it is often difficult to predict the overall performance without experimental evaluation. A pulsed ring-down antenna operates by charging the single element antenna with a high potential source and then closing a switch to develop transient wave reflections on the antenna, typical CW case analysis does not apply. For this reason, we have constructed a simulation model that allows us to predict the transient behavior of the structure. By utilizing the Comsol RF module transient analysis functions, we are able to characterize various parameters of different antennas, beginning with a dipole pulsed ring-down antenna operating around the 100 MHz range. After examining the simulated results against the experimental results for accuracy, we then moved to more complicated mesoband antenna structures. The simulation model developed within the COMSOL RF module allows us to examine various influential factors such as material losses, transient switching effects, structure capacitance, switch capacitance, and initial charging losses. With this, we are able to examine methods to improve the results in the far field such as capacitive spark gap loading and other capacitive storage methods. Utilizing the pulsed ring-down antenna model, we are able to give a better characterization of mesoband pulsed ring-down structures for implementation into a specific or multi-purpose phased array system.
Keywords :
VHF antennas; antenna phased arrays; dipole antenna arrays; electromagnetic wave reflection; pulsed power technology; transient analysis; Comsol RF module transient analysis function; Mesoband single element pulsed ring-down antennas; capacitive storage methods; dipole pulsed ring-down antenna; frequency 100 MHz; initial charging losses; material losses; phased array systems; single element antenna; spark gap loading; structure capacitance; switch capacitance; transient switching effects; transient wave reflections; Antenna arrays; Capacitance; Dipole antennas; Phased arrays; Predictive models; Radio frequency; Reflection; Reflector antennas; Switches; Transient analysis;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
IEEE International Power Modulators and High Voltage Conference, Proceedings of the 2008
Conference_Location :
Las Vegas, NE
Print_ISBN :
978-1-4244-1534-2
Electronic_ISBN :
978-1-4244-1535-9
Type :
conf
DOI :
10.1109/IPMC.2008.4743602
Filename :
4743602
Link To Document :
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