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A microstrip-fed aperture coupled microstrip antenna was designed by Rao et. al. [1]. A variant of this antenna was implemented in FEKO for the following specifications:
- 5.5 GHz centre frequency
- 50 Ω input impedance
- Substrate, ε = 3.2, height = 1.0 mm
Geometry for the slot antenna: (a) Top view and
(b) side view
Dimensions of geometry are:
- dy = 29 mm
- dx = 18 mm
- Ws = 2 mm
- Ls = 54 mm
- Wm = 2.35 mm
- Wp = Lp = 2t = 0.9dx = 16.2 mm
FEKO’s implementation of the planar Greens function features the ability to model the slots in the ground plane as magnetic triangles, which means that only the slots are meshed and not the ground plane itself, saving significantly on simulation resources.
A New Aperture Coupled Microstrip Slot Antenna Combo
Resonance at 5.5 GHz | Principle plane radiation pattern at resonance |
A New Aperture Coupled Microstrip Slot Antennas
[1] | Q. Rao, T. A. Denidni, R. H. Johnston, “A New Aperture Coupled Microstrip Slot Antenna,” IEEE Transactions on Antennas and Propagation, Vol. 53, No. 9, September 2005 |
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