Title :
Compact size high gain lens corrected pyramidal horn antenna for 71–76GHz band
Author :
Taher Al-Nuaimi, Mustafa K. ; Wei Hong
Author_Institution :
State Key Lab. of Millimeter Waves, Southeast Univ., Nanjing, China
Abstract :
This paper presents the design of high gain compact size pyramidal horn lens antenna for 71-76GHz band. The horn antenna aperture is covered by a planar single layer all dielectric lens that is composed of two dimensional periodic unit cells of λ/2 periodicity and low loss (≤1dB). The unit cell is used to design a 21 unit cell × 21 unit cell flat lens which occupied an area of 42mm × 42mm × 4.35mm. The lens horn antenna is well matched (S11<;10dB) from 70-80GHz without additional impedance matching layers, peak gain of 28.9dB@72.5GHz and aperture efficiency of 60% are achieved. The radiation characteristics of the lens are calculated using finite element method (HFSS) and finite integral technique (CST Microwave Studio).
Keywords :
finite element analysis; horn antennas; impedance matching; lens antennas; millimetre wave antennas; λ/2 periodicity; CST Microwave Studio; aperture efficiency; compact size high gain lens corrected pyramidal horn antenna; finite element method; finite integral technique; frequency 70 GHz to 80 GHz; frequency 71 GHz to 76 GHz; frequency 72.5 GHz; gain 28.9 dB; horn antenna aperture; impedance matching layers; planar single layer all dielectric lens; radiation characteristics; size 4.35 mm; size 42 mm; two dimensional periodic unit cells; Aperture antennas; Broadband antennas; Horn antennas; Lenses; Microwave antennas;
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.2014.6992400
