What is the difference between slot antenna and patch antenna?

In this paper, a coaxial feed circularly polarized square patch antenna is designed using the U-slot The proposed antenna is suited for the RFID readers in

No reflected wave from the end makes a traveling wave in the waveguide, which excites the slot antennas The longitudinal slot antennas are spaced with other

otp slot ANTENNA BALANCER CAR ANTENNA RUBBER COLLAR MOUNTING PLATE INSTALLED WITH SLOT 22 02 03 05 INSIDE OF DASH A NQ & CABLE SCREW FOR SETTING DEAL HAND

fish slot games Junping Geng Slot 4 Slot 3 Slot 2 Slot 1 Matching1 Matching 2 SMA Wave port Fig The model of the reconfiguration pattern antenna a With