Title :
Miniaturization on planar antennas with very high permittivity materials
Author :
Hwang, Y. ; Zhang, Y.P. ; Lo, Terry K C ; Luk, K.M. ; Yung, E.K.N.
Author_Institution :
Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon, Hong Kong
Abstract :
Miniaturization on planar printed-circuit antennas by loading the substrate with very high permittivity materials (εr=38) has been experimentally demonstrated on the planar inverted-F, microstrip, and dielectric resonator antennas. The results show that the size reduction is achieved with the gain comparable with that of the same type of antenna with a low dielectric constant. It is achieved by adding a superstrate of higher permittivity materials (εr =80)
Keywords :
antenna radiation patterns; dielectric resonators; losses; microstrip antennas; microwave antennas; permittivity; dielectric resonator antennas; high permittivity materials; inverted-F type; microstrip type; planar antenna miniaturization; printed-circuit antennas; size reduction; superstrate; Adaptive arrays; Dielectric constant; Dielectric materials; Dielectric resonator antennas; Dielectric substrates; Loaded antennas; Microstrip antennas; Microstrip resonators; Permittivity; Planar arrays;
Conference_Titel :
Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific
Print_ISBN :
962-442-117-X
DOI :
10.1109/APMC.1997.659343
