A Patch - Slot Antenna Structure for Quasioptical Multipliers

An antenna structure based on the combination of one or two slots and a patch is investigated as the basic structure for a millimeter-wave quasi-optical multiplier. This arrangement, on the one hand, is receiving and reradiating the RF, and on the other hand, is acting as a simple frequency and direction filter. Radiation diagrams at both fundamental and harmonic frequencies are presented in a scaled frequency range, showing the potential of this structure for quasi-optical doubler and tripler applications.