Title :
Full-wave analysis of Archimedean spiral antenna on the electromagnetic band-gap structures by using conformal ADI-FDTD method
Author :
Zheng, Hong-Xing ; Yu, Dao-Yin
Author_Institution :
Coll. of Precision Instrum. & Opto-Electron. Eng., Tianjin Univ., China
Abstract :
This paper shows that by placing a spiral antenna over an EBG structure rather than a PEC ground plane, a reduction of more than 70% in antenna height can be obtained without adverse effects on its performance and while maintaining the inherent frequency-independent characteristics. Additionally, the simulation results also show that the conformal ADI-FDTD method is a very efficient tool for complex structure modeling and simulation.
Keywords :
antenna theory; conformal antennas; finite difference time-domain analysis; photonic band gap; spiral antennas; wire antennas; Archimedean spiral antenna; EBG structure; complex structure modeling; conformal ADI-FDTD method; electromagnetic band-gap structures; frequency-independent characteristics; full-wave analysis; reduced antenna height; Arm; Dipole antennas; Electromagnetic analysis; Finite difference methods; Frequency; Maxwell equations; Metamaterials; Periodic structures; Spirals; Time domain analysis;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2005 IEEE
Print_ISBN :
0-7803-8883-6
DOI :
10.1109/APS.2005.1552821
