DocumentCode :
3114412
Title :
Optical feeding antenna with wide bandwidth for evaluation of radiated emission test sites above 1 GHz
Author :
Abe, Hideki ; Tanaka, Hideyasu ; Tokuda, Masamitsu ; Ishigami, Shinobu
Author_Institution :
Res. Div. in Eng., Musashi Inst. of Technol., Tokyo
fYear :
2008
fDate :
18-22 Aug. 2008
Firstpage :
1
Lastpage :
6
Abstract :
As a way to improve optical feeding antennas with a wide bandwidth above 1 GHz for evaluation of radiated emission test sites, we developed a tears drop type antenna composed of biconical type antenna elements and a sphere that utilizes a uni-traveling-carrier photodiode (UTC-PD) as a photo detector instead of the usual PIN photo diode. The radiated electric field was measured and compared with values calculated from the finite integration (FI) method. A numerical simulation revealed that the calculated frequency characteristics and directivities of the electric field radiated from the tears drop type antenna agreed very well with the measured values. In addition, the measured frequency characteristics of the electric field radiated from the antenna were almost flat within 9 dB in the frequency range from 1 GHz to 6 GHz, and the measured electric field levels were from 97 dBmuV/m to 106 dBmuV/m. The radiation directivities in the thetas direction almost complied with those specified by CISPR16-1-4 Ed.2. Our examinations showed that the tears drop type antenna is superior to a biconical type antenna.
Keywords :
antenna feeds; conical antennas; electric fields; finite element analysis; microwave antennas; p-i-n diodes; photodetectors; photodiodes; PIN photo diode; biconical type antenna elements; electric field radiation; finite integration method; frequency 1 GHz to 6 GHz; numerical simulation; optical feeding antenna; photodetector; radiated emission test sites; radiation directivities; tears drop type antenna; uni-traveling-carrier photodiode; wide bandwidth; Antenna feeds; Antenna measurements; Bandwidth; Diodes; Electric variables measurement; Frequency measurement; Numerical simulation; Photodiodes; Stimulated emission; Testing; EMC; FI method; UTC-PD; optical feeding method; spherical dipole antenna;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electromagnetic Compatibility, 2008. EMC 2008. IEEE International Symposium on
Conference_Location :
Detroit, MI
Print_ISBN :
978-1-4244-1699-8
Electronic_ISBN :
978-1-4244-1698-1
Type :
conf
DOI :
10.1109/ISEMC.2008.4652075
Filename :
4652075
Link To Document :
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