Title :
Gaussian optics lens antenna (GOLA) system for plasma diagnostics
Author :
Joshi, N.Y. ; Pandya, HKB ; Atrey, P.K. ; Pathak, S.K.
Author_Institution :
Inst. for Plasma Res., Bhat
Abstract :
A Gaussian optics lens antenna system has been designed, fabricated and tested for the plasma diagnostic systems on the Aditya Tokamak. The performance of the designed antenna system is compared with our own designed conventional conical horn antenna in Ka-band spectrum. A gain improvement of 11 dB has been achieved in GOLA system, having gain about 33 dB and half power beam width 1.6deg, compared to conical horn, which has gain about 22-dB and half power beam width 12deg respectively.The performance of indigenously designed and fabricated antenna system has also been simulated using CST Microwave Studio and ZEMAX optical designing software. The simulated findings of gain and 3 dB bandwidth of both antenna systems are well matched with experimental findings.
Keywords :
Tokamak devices; conical antennas; horn antennas; lenses; plasma diagnostics; Aditya Tokamak; CST Microwave Studio; GOLA system; Gaussian optics lens antenna system; ZEMAX optical designing software; conical horn antenna; gain 22 dB; gain 33 dB; plasma diagnostics; Horn antennas; Lenses; Microwave antennas; Optical design; Performance gain; Plasma diagnostics; Software design; Software performance; System testing; Tokamaks; Directional coupler; Gaussian optics; Gunn oscillator; Horn antenna; Plasma Diagnostics; beam width;
Conference_Titel :
Recent Advances in Microwave Theory and Applications, 2008. MICROWAVE 2008. International Conference on
Conference_Location :
Jaipur
Print_ISBN :
978-1-4244-2690-4
Electronic_ISBN :
978-1-4244-2691-1
DOI :
10.1109/AMTA.2008.4763045
