Title :
Theory of an active transmit/reflect array of patch antennas operating as a spatial power combiner
Author :
Bialkowski, M.E. ; Song, H.J. ; Kwai-man Luk ; Chi-Hou Chan
Author_Institution :
Sch. of Comput. Sci. & Electr. Eng, Queensland Univ., St. Lucia, Qld., Australia
Abstract :
A theory exploring the Friis transmission formula and scattering parameters of cascaded two-ports is presented to analyze the operation of a spatial power combiner formed by either a transmitarray or reflectarray of microstrip patch antennas. This theory is applied to investigate insertion losses when the elements of the transmitarray or the reflectarray are phased to focus the re-transmitted wave onto a receiving sub-array. Comparison with experiment and a fullwave analysis confirms the validity of the developed theory.
Keywords :
S-parameters; active antenna arrays; antenna theory; horn antennas; microstrip antenna arrays; microstrip circuits; power combiners; reflector antenna feeds; reflector antennas; transmitting antennas; Friis transmission formula; active reflectarray; active transmitarray; cascaded two-ports; horn antenna; insertion losses; microstrip antenna arrays; patch antenna arrays; receiving sub-array; scattering parameters; spatial power combiner; Antenna arrays; Horn antennas; Insertion loss; Lenses; Microstrip antennas; Patch antennas; Phased arrays; Power combiners; Receiving antennas; Space technology;
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.2001.959577
