Title :
Spatial power combiner using an active reflectarray of dual-feed aperture coupled microstrip patch antennas
Author :
Song, H.J. ; Bialkowski, M.E.
Author_Institution :
Sch. of Comput. Sci. & Electr. Eng, Queensland Univ., St. Lucia, Qld., Australia
Abstract :
An X-band 37-element microstrip patch reflectarray is explored as a power combining structure for MMIC amplifiers. This power combiner uses a planar array of dual-feed aperture coupled antenna elements and a small dual-corporate feed sub-array as a signal distributing receiving device. The MMIC amplifiers are located within the sections of transmission lines connecting orthogonal ports of the patches. Delay lines at the output ports of these amplifiers compensate for unequal electrical paths so that the amplified signals add in phase at the receiving sub-array to achieve maximum combined power.
Keywords :
MMIC amplifiers; active antenna arrays; delay lines; horn antennas; microstrip antenna arrays; microstrip circuits; power combiners; reflector antenna feeds; reflector antennas; 10 GHz; MMIC amplifiers; X-band antenna; active reflectarray; delay lines; dual-corporate feed sub-array; dual-feed aperture coupled antennas; horn antennas; microstrip antenna arrays; microstrip circuits; orthogonal ports; patch antenna arrays; planar array; signal distributing device; signal receiving device; spatial power combiner; transmission lines; Antenna feeds; Aperture antennas; Aperture coupled antennas; Couplings; MMICs; Microstrip; Planar arrays; Power amplifiers; Power combiners; Receiving antennas;
Conference_Titel :
Antennas and Propagation Society International Symposium, 2001. IEEE
Conference_Location :
Boston, MA, USA
Print_ISBN :
0-7803-7070-8
DOI :
10.1109/APS.2001.959578
