Title :
Method of generating negative group delay in phase arrays without using lossy circuits
Author :
Alomar, Waleed ; Mortazawi, Amir
Author_Institution :
Electr. Eng. & Comput. Sci., Univ. of Michigan, Ann Arbor, MI, USA
Abstract :
A design technique for generating negative group delay (NGD) without the use of lossy circuits is reported. Furthermore, the lossless NGD circuit is employed in designing a serially fed antenna array. The NGD is generated by using an antenna and a T-junction power divider. The NGD circuit cancels out the positive group delay in serially fed arrays resulting in beam squint elimination.
Keywords :
antenna feeds; antenna phased arrays; T-junction power divider; beam squint elimination; lossless NGD circuit; lossy circuits; negative group delay; positive group delay; serially fed antenna array; serially fed arrays; Antenna arrays; Antenna measurements; Arrays; Delays; Transmission line measurements; Active antenna array; anomalous dispersion; delay-lines; negative group delay; phased array; serially fed antenna array;
Conference_Titel :
Wireless Symposium (IWS), 2013 IEEE International
Conference_Location :
Beijing
DOI :
10.1109/IEEE-IWS.2013.6616774
