Radiating Elements for Shared Aperture Tx/Rx Phased Arrays at K/Ka Band
KAUST DepartmentElectrical Engineering Program
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AbstractA dual band, Tx/Rx, self-diplexing phased array is presented. The antenna has been designed to cover Tx/Rx satellite communications at K/Ka band with a frequency ratio 1.5:1. To obtain dual band operations with a single radiating surface, a novel dual band radiator is adopted and placed in a configuration in which dual band and single band elements are interleaved. The proposed configuration reduces the number of radiating elements required by other solutions while avoiding the insurgence of grating lobes. The tightly packed arrangement of the elements poses many integration issues, which are solved with a novel integration technique. The array elements are optimized to scan the beam in excess of ° in both bands. A subarray with 49 Rx elements and 105 Tx elements was built and measured confirming the results obtained in simulations.
CitationRadiating Elements for Shared Aperture Tx/Rx Phased Arrays at K/Ka Band 2016:1 IEEE Transactions on Antennas and Propagation
SponsorsThe authors are thankful to Prof. Steven Gao and the staff of the Antenna Laboratory at the University of Kent (UK) for their support in antenna measurements.