Title :
Broadband stacked microstrip patch antennas
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol.
Abstract :
The Full-Wave Analysis Method (FWAM) is employed to show that a stacked microstrip dual-patch antenna (SMDPA) may have a much wider bandwidth than that of the ordinary uni-patch one. By means of Discrete Complex Image Theory (DCIT), the Sommerfeld Integrals (SI) involved are accurately calculated at a speed several hundred times faster than the Numerical Integration Method (NIM). The feeding structure of the SMDPA is then improved and the bandwidth is extended to about 22% or more for VSWR⩽2. Finally, a matching network is constructed to obtain a bandwidth of about 25% for VSWR⩽1.5
Keywords :
antenna feeds; antenna theory; electric impedance; impedance matching; microstrip antennas; Sommerfeld integrals; bandwidth improvement; broadband patch antennas; discrete complex image theory; dual-patch antenna; feeding structure; full-wave analysis method; matching network; stacked microstrip patch antennas; Acceleration; Bandwidth; Boundary conditions; Current; Green´s function methods; Integral equations; Message-oriented middleware; Microstrip antennas; Moment methods; Patch antennas;
Conference_Titel :
Microwave Conference Proceedings, 1997. APMC '97, 1997 Asia-Pacific
Print_ISBN :
962-442-117-X
DOI :
10.1109/APMC.1997.659351
