Title :
Spatial power combining for two dimensional structures
Author :
Mink, J.W. ; Hwang, H.S. ; Hicks, C.W. ; Nuteson, T.W. ; Steer, M.B. ; Harvey, J.
Author_Institution :
Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA
Abstract :
A hybrid dielectric slab-beam waveguide is suitable for the design of planar quasi-optical integrated circuits and devices. In this paper a 2-D quasi-optical power-combining system with convex and concave lenses was investigated. The system employs an active E-plane amplifier array consisting of Vivaldi-type antennas with MESFET and MMIC devices. The system was tested by switching the amplifier bias off and on while measuring the power with an E-plane horn. Tests were performed with a single MMIC amplifier and a 4×1 MESFET amplifier array. The amplifier array generated 11 dB and 4.5 dB of amplifier and system gain respectively at 7.12 GHz, and the single MMIC Vivaldi-type antenna produced 24 dB of amplifier gain at 8.4 GHz
Keywords :
MESFET integrated circuits; MMIC amplifiers; dielectric waveguides; power combiners; waveguide antenna arrays; 11 dB; 24 dB; 4.5 dB; 7.12 GHz; 8.4 GHz; E-plane horn; MESFET amplifier array; MMIC amplifier; Vivaldi-type antennas; active E-plane amplifier array; amplifier bias; hybrid dielectric slab-beam waveguide; planar quasi-optical integrated circuits; quasi-optical power-combining system; spatial power combining; system gain; two dimensional structures; Antenna arrays; Circuit testing; Dielectric devices; Hybrid integrated circuits; Lenses; MESFETs; MMICs; Planar waveguides; Power amplifiers; System testing;
Conference_Titel :
Millimeter Waves, 1997 Topical Symposium on
Conference_Location :
Kanagawa
Print_ISBN :
0-7803-3887-1
DOI :
10.1109/TSMW.1997.702489
