Ratajczak Philippe

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A new type of circularly polarized slot radiator is presented. Good polarization performances are reached for both left-hand and right hand circular polarization (LHCP, RHCP). The slot configuration consists of an annular slot placed correctly on the upper wall of the waveguide. Several annular contours and positions have been tested and compared. The(More)
A circularly polarized slotted substrate integrated waveguide (SIW) array antenna is presented. The objective is to verify the capabilities of a new type of slot to maintain good circular polarization radiation performances for beams scanned over a large angle range. A Rotman lens has been designed to feed a 15 slotted waveguides array generating a set of(More)
A circularly polarized slotted substrate integrated waveguide (SIW) array antenna is presented. This array is based on a new type of circularly polarized (CP) slot radiator presenting good circular polarization performances for left-hand and right-hand circular polarization (LHCP, RHCP). The capabilities of this new type of slot of maintaining good circular(More)
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