Title :
Two-Element Independently Center-Fed Dipole Array for Ultrawideband and Ultrashort Pulse Applications
Author :
Ni, Nan ; Grebel, Haim
Author_Institution :
Dept. of Electr. & Comput. Eng., New Jersey Inst. of Technol., Newark, NJ
Abstract :
Previously, we introduced the concept of an independently center-fed dipole array (ICDA) to overcome phase nonlinearities in many ultrawideband (UWB) and short-pulsed antennas. In this letter, we analyzed the efficiency of ICDA. We designed a two-element ICDA antenna for UWB systems. Extensive simulations were conducted to characterize the antenna in terms of transmission coefficient S21, radiation pattern, and time-domain patterns. The array exhibits linear amplitude and phase in the frequency range from 2.6 to 11.8 GHz, broader than the allocated UWB frequency range of 3.1-10.6 GHz. Such concept may be scalable to a much broader bandwidth
Keywords :
antenna radiation patterns; dipole antenna arrays; microwave antenna arrays; ultra wideband antennas; 2.6 to 11.8 GHz; ICDA; UWB; phase nonlinearities; radiation pattern; time-domain patterns; transmission coefficient; two-element independently center-fed dipole array; ultrashort pulse applications; ultrawideband applications; Antenna arrays; Antenna radiation patterns; Dipole antennas; Linear antenna arrays; Phased arrays; Radio spectrum management; Time domain analysis; Transmitting antennas; Ultra wideband antennas; Ultra wideband technology; Antenna arrays; finite-difference time-domain (FDTD) methods; ultrawideband (UWB);
Journal_Title :
Antennas and Wireless Propagation Letters, IEEE
DOI :
10.1109/LAWP.2006.872414
