Spatial Power Combining and Phased-Array Behavior of Circularly Polarized Active Patch Antennas

Tomomichi KAGAWA  Shigeji NOGI  Minoru SANAGI  

IEICE TRANSACTIONS on Electronics   Vol.E82-C   No.7   pp.1182-1187
Publication Date: 1999/07/25
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Microwave and Millimeter Wave Technology)
Category: Phased Arrays and Antennas
microwave,  active antenna,  circularly polarized antenna,  spatial power combining,  phased array,  

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Design of circularly polarized active antennas of dual-fed square patch type is given, and spatial power combining and phased array operation of the antennas have been successfully achieved. In a phased array experiment of the arrays with two and three active antennas by the method of varying their free-running oscillation frequencies, we obtained the scan angles from -12 to +13 and those from -13 to +13, respectively, and good axial ratios together with high spatial power-combining efficiencies.