Title :
Backscattering Cross Section of Ultrawideband Antennas
Author :
Hu, Sanming ; Chen, Honghui ; Law, Choi Look ; Shen, Zhongxiang ; Zhu, Lei ; Zhang, Wenxun ; Dou, Wenbin
Author_Institution :
Positioning & Wireless Technol. Centre, Nanyang Technol. Univ.
fDate :
6/29/1905 12:00:00 AM
Abstract :
Backscattering of ultrawideband (UWB) antennas is theoretically and experimentally studied in this letter. The finite-difference time-domain (FDTD) method using Berenger´s perfectly matched layer absorbing boundary condition (PML-ABC) is employed for simulation and the measurement is carried out in indoor environment. Monostatic radar cross section (RCS) of square-slot antenna and printed circular-disc monopole antenna (PCDMA) terminated with three different kinds of loads are numerically calculated and experimentally verified. They are in good agreement in the frequency range from 3 to 11 GHz. Afterwards, scattering characteristics of the structural and antenna modes of two kinds of UWB antenna structures are extensively characterized in both the frequency domain and time domain
Keywords :
backscatter; electromagnetic wave absorption; finite difference time-domain analysis; microstrip antennas; monopole antennas; radar cross-sections; slot antennas; ultra wideband antennas; 3 to 11 GHz; FDTD; PCDMA; RCS; UWB antennas; backscattering cross section; finite-difference time-domain method; monostatic radar cross section; perfectly matched layer absorbing boundary condition; printed circular-disc monopole antenna; scattering characteristics; square-slot antenna; ultrawideband antennas; Antenna theory; Backscatter; Boundary conditions; Finite difference methods; Loaded antennas; Perfectly matched layers; Radar antennas; Time domain analysis; Ultra wideband antennas; Ultra wideband technology; finite-difference time domain (FDTD); radar cross section (RCS); time domain; ultrawideband (UWB) antenna;
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2007.893069
