Resistor Loaded EBG Surfaces for Slot Antenna Design
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(a)
(b)
Figure 11. Measured radiation patterns of waveguide fed
slot antennas on PEC and REBG ground planes: (a) radia-
tion pattern, and (b) RCS.
Figure 12. Photo of the measurement setup in the anechoic
chamber.
4. Conclusion
Resistor loaded mushroom like EBG surface has been
applied in slot antenna design. The antenna RCS can be
significantly reduced and the antenna side lobe level be
reduced as well. The REBG antenna gain is at the level
of that on a PEC ground plane. Considering both of the
radiation patterns and RCS, the total antenna perform-
ance is enhanced.
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