Title :
A design of low side-lobe slot array antenna at K-band
Author :
Yiming Dai ; Yiquan Liu ; Zhongxiang Zhang
Author_Institution :
Sch. of Electron. & Inf. Eng., Anhui Univ., Hefei, China
Abstract :
An 18-element longitudinally-slotted waveguide array antenna at 24.125 GHz with a compact transverse dimension is presented which is used for speed radar. Taylor synthesis method is employed to obtain lower side-lobe. In consideration of machining and operation, this antenna adopts Coaxial-Waveguide Transition to feed. The slot resonance lengths are optimized and adjusted with the help of parametric analysis function in simulation software. The processing of the various parameters of the antenna can achieve the desired targets that the main-side lobe suppression is able to be above 25 dB.
Keywords :
antenna feeds; coaxial waveguides; slot antenna arrays; waveguide transitions; 18-element longitudinally-slotted waveguide array antenna; K-band; Taylor synthesis method; coaxial-waveguide transition; compact transverse dimension; frequency 24.125 GHz; low side-lobe slot array antenna design; lower side-lobe; main-side lobe suppression; parametric analysis function; simulation software; slot resonance lengths; speed radar; Antenna arrays; Aperture antennas; Arrays; Educational institutions; Electromagnetic waveguides; Radar antennas; Slot antennas; Taylor synthesis; longitudinally-slotted; lower side-lobe; waveguide antenna;
Conference_Titel :
Antennas and Propagation (APCAP), 2014 3rd Asia-Pacific Conference on
Conference_Location :
Harbin
Print_ISBN :
978-1-4799-4355-5
DOI :
10.1109/APCAP.2014.6992443
