Electronics Letters · 1998 · 78 citations · 2 references
By cutting a square slot at the centre of a rectangular microstrip patch, both compactness and dual-frequency operation can be achieved. Several designs have been implemented. From the experimental results obtained, the required antenna size using the proposed design method can be reduced by ~17% compared to that of the conventional design method using a simple patch without the slot. Typical experimental results are presented and discussed.
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