Title :
Investigations of the effects of array elements spacing on the performance of Rotman type multiple beam forming network
Author :
Singhal, P.K. ; Gupta, Ravi Dutt
Author_Institution :
Dept. of Electron. Eng., Madhav Inst. of Technol. & Sci., Gwalior, India
Abstract :
A modified approach to design a Rotman type multiple beam forming network is proposed. The lens design using the proposed approach is analyzed using the contour integral approach. Z-matrix and then S-parameters for the multiport model of the lens have been evaluated. The S-matrix yields voltage distribution at the array elements. Using the voltage distribution, the radiation pattern for the antenna array has been computed. Effects of antenna element spacing on the performance of the network have been investigated.
Keywords :
S-matrix theory; S-parameters; antenna radiation patterns; antenna theory; lens antennas; microwave antenna arrays; voltage distribution; 3.464 GHz; Rotman lens design; Rotman type multiple beamforming network; S-matrix; S-parameters; Z-matrix; antenna array; antenna element spacing; array elements spacing; beam forming network performance; contour integral approach; multiport model; radiation pattern; voltage distribution; Antenna arrays; Design engineering; Electronic mail; Feeds; Lenses; Optical design; Phased arrays; Power transmission lines; Radar antennas; Voltage;
Conference_Titel :
Microwave Conference, 2001. APMC 2001. 2001 Asia-Pacific
Conference_Location :
Taipei, Taiwan
Print_ISBN :
0-7803-7138-0
DOI :
10.1109/APMC.2001.985443
