Research Article
A Low-Profile WLAN Antenna with Inductor and Tuning Stub for Broadband Impedance Matching
Table 1
Resonant frequency and 10-dB bandwidth for different tuning stubs.
| | Tuning stub | Lower band | Upper band | | (mm) | (mm) | (GHz) | BWlow (%) | (GHz) | BWhigh (%) |
| | 0 | 0 | 2.42 | 8.2 | 4.90 | 0 |
| | 2.8 | 3.0 | 2.42 | 8.2 | 5.15 | 11.8 | | 3.4 | 2.42 | 8.2 | 5.31 | 32.7 | | 3.8 | 2.42 | 8.2 | 5.41 | 29.5 |
| | 3.2 | 3.0 | 2.42 | 8.2 | 5.20 | 7.7 | | 3.4 | 2.42 | 8.2 | 5.36 | 33.8 | | 3.8 | 2.42 | 8.2 | 5.46 | 29.0 |
| | 3.6 | 3.0 | 2.42 | 8.2 | 5.23 | 7.6 | | 3.4 | 2.42 | 8.2 | 5.41 | 33.5 | | 3.8 | 2.42 | 8.2 | 5.52 | 29.1 |
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