Title :
A harmonically controlled microstrip patch antenna using grounded-pads embedded in an antenna substrate
Author_Institution :
Fac. of Informatics, Kansai Univ., Osaka, Japan
Abstract :
This paper proposes a new approach to suppress the harmonic radiation from a microstrip patch antenna by embedding several grounded-pads in an antenna substrate. The grounded-pad is composed of a rectangular metal pad and a thin metal wire connecting between the pad and the ground plane. Even though the pad is very small in size, it works as a deep and narrow band elimination filter. The basic behavior of this pad is studied theoretically by the FDTD method. Finally, several grounded-pads are embedded in the substrate of a microstrip patch antenna to suppress harmonic resonances.
Keywords :
band-stop filters; finite difference time-domain analysis; microstrip antennas; FDTD method; antenna substrate embedded grounded-pads; deep elimination filter; harmonic resonance suppression; harmonically controlled microstrip patch antenna; narrow band elimination filter; pad/ground plane thin metal wire connection; rectangular metal pad; Conductors; Finite difference methods; Geometry; Insertion loss; Microstrip antennas; Patch antennas; Permittivity; Power harmonic filters; Resonance; Wire;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2003. IEEE
Conference_Location :
Columbus, OH, USA
Print_ISBN :
0-7803-7846-6
DOI :
10.1109/APS.2003.1219338
