Title :
An X-band spatial power combiner using a planar array of stacked patches for bandwidth enhancement
Author :
Tsai, Feng-Chi E. ; Bialkowski, M.E.
Author_Institution :
Sch. of Inf. Technol. & Electr. Eng., Queensland Univ., Brisbane, Qld., Australia
Abstract :
An X-band spatial combiner using a planar transmitarray (TXA) of orthogonally polarized stacked patches (SP), which are coupled to input and output ports of individual amplifiers on opposite sides of ground plane, is presented. The purpose of using SP antennas is to obtain an increased operational bandwidth of the active transmitarray. A power combiner including 4 × 4 SP transmitarray with monolithic amplifiers and two hard horns for signal launching and combining is developed and tested. Experimental results show an increased operational bandwidth of this space-level power combiner structure.
Keywords :
active antennas; microstrip antenna arrays; millimetre wave amplifiers; planar antenna arrays; power combiners; SP antennas; X-band spatial power combiner; active antennas; bandwidth enhancement; horns; microstrip antennas; monolithic amplifiers; operational bandwidth; planar array; planar arrays; planar transmitarray; signal combining; signal launching; stacked patches; Bandwidth; Microstrip antenna arrays; Microstrip antennas; Planar arrays; Polarization; Power combiners; Solid state circuits; Tiles; Topology; Transmitting antennas;
Conference_Titel :
Microwave Symposium Digest, 2004 IEEE MTT-S International
Print_ISBN :
0-7803-8331-1
DOI :
10.1109/MWSYM.2004.1335809
