[天线]Single-Feed Slotted Equilateral-Triangular

Abstract—Novel designs of single-feed equilateral-triangular *G
2p;n=2  
microstrip antennas for circular polarization (CP) are proposed >*k3D&  
and studied experimentally. It is demonstrated that by embedding -=2tKH`Q  
a narrow slot or a cross slot of unequal slot lengths in the triangular mI9~\k&9  
patch, circularly polarized radiation of microstrip antennas k q_B5L?  
can easily be achieved using a single probe feed. Furthermore, ocGqXDg3  
results show that for the design with a cross slot, the proposed beN0?G  
antenna can perform CP radiation with a reduced antenna size at H8rDG/>^  
a given frequency (denoted as compact CP operation here); that c?j/H$  
is, the required antenna size is smaller for the proposed antenna _Su$oOy(Ea  
for performing CP radiation as compared to a conventional 2NqlE  
circularly polarized triangular microstrip antenna at a fixed pz#oRuujY  
operating frequency. Details of the proposed CP designs are {N/(lB8  
described, and typical experimental results are presented .. U $e-e/  
d5UdRX]*  

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