Title :
A novel polarization-agile active microstrip antenna array with LNA
Author :
Yang, Xue-Xia ; Zhong, Shun-Shi ; Gao, Shi-Chang
Author_Institution :
Dept. of Commun. & Inf. Eng., Shanghai Univ., China
Abstract :
A novel amplifier-type polarization-agile active microstrip array is proposed, in which the polarization agility and amplification of the signal for the whole microstrip antenna array is achieved by electrically controlling only one active circuit. First, by using the corner-fed square patch element, a new 16-element dual-polarized array with high isolation and low cross-polarization is presented with the co- and cross-polarization radiation patterns. Then the design of the active circuits, composed of LNA (low noise amplifier) and the phase shifter, are introduced and the experimental and theoretical results are given.
Keywords :
active antenna arrays; antenna radiation patterns; electromagnetic wave polarisation; microstrip antenna arrays; microwave amplifiers; 16-element dual-polarized array; LNA; active circuits design; co-polarization radiation patterns; corner-fed square patch element; cross-polarization radiation patterns; high isolation; low cross-polarization; low noise amplifier; phase shifter; polarization agility; polarization-agile active microstrip antenna array; Active circuits; Active noise reduction; Antenna radiation patterns; Circuit noise; Low-noise amplifiers; Microstrip antenna arrays; Microstrip antennas; Phase noise; Phase shifters; Polarization;
Conference_Titel :
Antennas, Propagation and EM Theory, 2000. Proceedings. ISAPE 2000. 5th International Symposium on
Conference_Location :
Beijing, China
Print_ISBN :
0-7803-6377-9
DOI :
10.1109/ISAPE.2000.894732
