Title :
Low-cost ferroelectric ceramic-polymer scan antenna
Author :
Yashchyshyn, Yevhen ; Modelski, Jozef
Author_Institution :
Inst. of Radioelectron., Warsaw Univ. of Technol., Poland
Abstract :
The radiation characteristics of a new microstrip electrically controllable traveling-wave antenna are investigated, theoretically and experimentally. The substrate of this antenna is made using ceramic-polymer composite. Ceramic-polymer composite with modified ferroelectric powder Ba0.65Sr0.35TiO3 and appropriate polymer have been synthesized and investigated. A time-domain method for microwave measurements of ceramic-polymer material parameters has been developed. The feasibility of dielectric scanning (changing the direction of the beam by varying the relative permittivity of the electrically controlled ceramic-polymer composite) is investigated. It shows that the beam angle changes are over 30°.
Keywords :
antenna radiation patterns; barium compounds; ferroelectric materials; filled polymers; microstrip antennas; particle reinforced composites; permittivity; strontium compounds; time-domain analysis; Ba0.65Sr0.35TiO3; Ba0.65Sr0.35TiO3 modified ferroelectric powder; antenna substrate ceramic-polymer composite; beam angle changes; beam direction; ceramic-polymer material parameters; dielectric scanning; ferroelectric ceramic-polymer scan antenna; microstrip electrically controllable traveling-wave antenna; microwave measurements; polymer material parameters; radiation characteristics; relative permittivity; time-domain method; Antenna measurements; Antenna theory; Dielectric measurements; Ferroelectric materials; Microstrip antennas; Microwave theory and techniques; Polymers; Powders; Strontium; Time domain analysis;
Conference_Titel :
Microwave and Optoelectronics Conference, 2003. IMOC 2003. Proceedings of the 2003 SBMO/IEEE MTT-S International
Print_ISBN :
0-7803-7824-5
DOI :
10.1109/IMOC.2003.1244893
