Research Article

Compact Wideband Dual-Frequency Antenna Based on a Simplified Composite Right/Left-Handed Transmission Line with Hilbert Curve Loading

Figure 7

Simulated and measured directivity patterns of the ZOR mode (center frequency f0 = 1.865 GHz) and FOR mode (center frequency f1 = 2.835 GHz) dual-frequency wideband antenna. In the yoz plane (H-plane): (a) f0; (c) f1. In the xoy plane (E-plane): (b) f0; (d) f1.
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(b)
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