Title :
A novel microstrip antenna using alumina-ceramic/polyimide multilayer dielectric substrate
Author :
Kamogawa, K. ; Tokumitsu, T. ; Aikawa, M.
Author_Institution :
NTT Wireless Syst. Labs., Kanagawa, Japan
Abstract :
A novel microstrip antenna using an alumina-ceramic/polyimide multilayer dielectric substrate is presented. This configuration in which two different multilayer materials with much different permittivities and thicknesses are stacked together, can be used for designing antenna with selective substrate thickness, thus providing the optimum substrate thickness for operation frequencies. We fabricated prototypes of a 10-GHz-band antenna and an 18-GHz-band antenna, that achieve good return loss of less than -30 dB and a general bandwidth of 2.8%.
Keywords :
alumina; ceramics; dielectric losses; microstrip antennas; permittivity; polymer films; -30 dB; 10 GHz; 18 GHz; Al/sub 2/O/sub 3/; bandwidth; microstrip antenna; multilayer dielectric substrate; permittivities; return loss; selective substrate thickness; Ceramics; Circuit testing; Coplanar waveguides; Dielectric substrates; Frequency; Materials testing; Microstrip antennas; Nonhomogeneous media; Patch antennas; Polyimides;
Conference_Titel :
Microwave Symposium Digest, 1996., IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3246-6
DOI :
10.1109/MWSYM.1996.508465
