Title :
Millimetre-wave end-fired antenna array for active 3D holographic imaging system
Author :
Weihai Fang ; Peng Fei ; Feng Nian
Author_Institution :
Sci. & Technol. on Metrol. & Calibration Lab., Beijing Inst. of Radio Metrol. & Meas., Beijing, China
Abstract :
A compact Ka-band (26.5-40 GHz) dielectric rod end-fired antenna array for the three-dimensional (3D) active holographic imaging system is presented. Without horn shape feeding, the new antenna array is specially designed with characteristics such as small size, high gain, good radiation pattern, easy realisation, low insertion loss and low mutual coupling. In the imaging system, the spacing of sending and receiving antenna units is 1.5 wavelengths with mutual coupling <;-30 dB and a gain of 12-16 dB. The results and analysis provide guidelines for the design of millimetre-wave end-fired antenna arrays.
Keywords :
antenna radiation patterns; holography; millimetre wave antenna arrays; millimetre wave imaging; receiving antennas; transmitting antennas; active 3D holographic imaging systems; bandwidth 26.5 GHz to 40 GHz; compact Ka-band dielectric rod end-fired antenna array; easy realisation; gain 12 dB to 16 dB; good radiation pattern; high gain; low insertion loss; low mutual coupling; millimetre wave end-fired antenna array; receiving antenna unit spacing; sending antenna unit spacing; small size;
Journal_Title :
Electronics Letters
DOI :
10.1049/el.2014.0040
