Title :
Microstrip series fed antenna array for millimeter wave automotive radar applications
Author :
Chong, Yi ; Wenbin, Dou
Author_Institution :
Beijing Inst. of Remote Sensing Equip., Beijing, China
Abstract :
A 2D tapered microstrip antenna array is analyzed and designed in the paper by adopting the method of Modified Transmission Line Model. The pattern of the E-plane is determined by 20 linear series fed rectangular microstrip patches with tapered width, and 16 linear arrays compose the 2D array fed by four-stage T-junction power divider network. The excitation coefficients in both E and H plane follow the Taylor distribution. The antenna array achieves a pencil beam of 29dB gain at W band, and its half power beamwidths(HPBW) for E plane and H plane are both about 5°. The Side Lobe Level (SLL) of the pattern at the center frequency is lower than -17dB and 19dB at E and H plane respectively.
Keywords :
antenna feeds; linear antenna arrays; microstrip antenna arrays; millimetre wave antenna arrays; power dividers; radar antennas; rectangular waveguides; road vehicle radar; transmission line theory; 2D tapered microstrip series fed antenna array; E-plane excitation coefficient; H-plane excitation coefficient; HPBW; SLL; Taylor distribution; four-stage T-junction power divider network; gain 29 dB; half power beamwidth; linear feeding array; millimeter wave automotive radar application; modified transmission line model; pencil beam; rectangular microstrip patch; side lobe level; Arrays; Brain modeling; Feeds; Microstrip; Microstrip antenna arrays; Microstrip antennas; Power transmission lines;
Conference_Titel :
Microwave Workshop Series on Millimeter Wave Wireless Technology and Applications (IMWS), 2012 IEEE MTT-S International
Conference_Location :
Nanjing
Print_ISBN :
978-1-4673-0901-1
Electronic_ISBN :
978-1-4673-0903-5
DOI :
10.1109/IMWS2.2012.6338245
