Design of Compact Stacked-Patch Antennas on LTCCDesign of Compact Stacked-Patch Antennas on LTCC Technology for Wireless Communication Applications E. Tentzeris, R. L. Li, K. Lim, M. Mseng, E. Tsai, G. DeJean, and J. Laskar School of Electrical and Computer Engineering Georgia Institute of Technology, Atlanta, GA 30332-0250, USA I. Introduction The exploding growth of wireless communications systems leads to an increasing demand far integrated compact low-cost antennas, As a result, LTCC (Low Temperalure Co-fired Ceramics) multilayer technology is becoming more and more popular for the production of highly integrated, complex multilayer modules and antennas. This technology is appreciated for its flexibility in realizing an arbitrary number of layers. However, LTCC materials typically possess a high dielectric constant, On one hand, th……