Title :
A novel miniaturized ultra wideband log-periodic antenna
Author :
Shan, Luan ; Xiaofeng, Liu ; Jinghui, Qiu
Author_Institution :
Harbin Inst. of Technol., Harbin, China
Abstract :
The log-periodical antenna (LPDA) is a kind of ultra wide-band antennas. To achieve the purpose of miniaturization of the LPDA in radiate direction, this paper presents a novel structure log-periodically loaded with symmetrical meandering dipoles. The radiate direction is reduced to 46% of the conventional LDPA. The return loss is less than -10dB from 200MHz to 2GHz, according to the simulation results. A good directivity is also obtained that the gain ranges from 1.9dB to 7.2dB.
Keywords :
antenna radiation patterns; ultra wideband antennas; LPDA; directivity; frequency 200 MHz to 2 GHz; gain 1.9 dB to 7.2 dB; radiate direction; return loss; symmetrical meandering dipoles; ultra wideband log-periodic antenna; Dipole antennas; Gain; Log-periodic dipole antennas; Oscillators; Ultra wideband antennas; LPDA; Ultra wideband antenna; meander; miniaturization;
Conference_Titel :
Ultrawideband and Ultrashort Impulse Signals (UWBUSIS), 2010 5th International Conference on
Conference_Location :
Sevastopol
Print_ISBN :
978-1-4244-7470-7
Electronic_ISBN :
978-1-4244-7469-1
DOI :
10.1109/UWBUSIS.2010.5609126
