Title :
Performance evaluation of mobile WiMAX beam forming network implemented by RF digital step attenuators
Author :
Chen, Y.H. ; Chen, Jun-Horng ; Hsien, Peng Chia ; Chang, Dau-Chyrh ; Huang, Jung-Hao
Author_Institution :
Commun. Eng. Dept. of Oriental, Inst. of Technol., Taipei
Abstract :
Performance evaluation of a mobile WiMAX beam forming network(BFN) and design algorithm of using the RF digital Step attenuator (DSA) for implemeting the BFN are described. The architecture of the BFN controller and the steering operation modes of the BFN are also introduced. Optimization of the antenna element spacing in considering of the mutual coupling against the grating lobe suppression is analyzed. The simulated performance evaluation in measuring a tested Butler matric array antenna by BFN is evaluated. Relevant equations of the phase and amplitude error parameters used in the Monte-Carlo simulation are derived.
Keywords :
Monte Carlo methods; WiMax; antenna arrays; attenuators; mobile radio; Butler matrix array antenna; Monte Carlo simulation; RF digital step attenuators; amplitude error parameters; antenna element spacing; grating lobe suppression; mobile WiMAX beamforming network; mutual coupling; phase error parameters; Algorithm design and analysis; Antenna measurements; Attenuators; Brain modeling; Butler matrix; Gratings; Mutual coupling; Radio frequency; Testing; WiMAX; Monte-Carlo simulation; RF digital step attenuator; beam forming network; element spacing; mobile WiMAX; phase array antenna; phase shifter;
Conference_Titel :
Wireless Conference, 2008. EW 2008. 14th European
Conference_Location :
Prague
Print_ISBN :
978-3-8007-3102-2
DOI :
10.1109/EW.2008.4623910
