Ultra Wideband Double Rhombus Antenna with a 180 Degree Phase Shifter

A.A. Eldek (USA)


Phase Shifter, Phased Arrays, Wideband, Transition.


Ultra wideband microstrip 180o phase shifter is introduced to the feedline of the Double Rhombus antenna. The phase shifter is a novel design of Microstrip to-Coplanar Waveguide (CPW)-to-Microstrip transition. The Double Rhombus antenna with the phase shifter is operating in a wide bandwidth from 5.7 to 18.6 GHz (106%), and provides stable endfire radiation patterns. In a modified two-element array configuration, this design provides wide usable bandwidth.

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