Narrowband-to-Narrowband Frequency Reconfiguration with Harmonic Suppression Using Fractal Dipole Antenna

Figure 2

Measured return losses of the TMFDB25 antenna at two conditions: (1) TMFDB25 without stubs and (2) TMFDB25 with stubs 1, 2. In this study, 𝑓 equals 705 MHz while 1st HM = 1.972 GHz and 2nd HM = 3.048 GHz, and suppressed return losses of 1st HM and 2nd HM equals −1.7429 dB and −1.3321 dB, respectively.