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

Table 5

Effect of stubfilter’s length on resonance in Figure 1 is location of stub 2 with respect to stub 1.

Resonance	Δ𝐿1-2, mm
	0	1	2	3	4	5	6
f (GHz), dB	0.74, −22	0.74, −29	0.74, −23	0.74, −23	0.74, −27	0.74, −24	0.74, −23
1st HM (GHz), dB	2.36, −31	2, −2	1.99, −3	1.98, −3	1.98, −5	1.96, −7	1.94, −12
2nd HM (GHz), dB	NA	2.36, −13	2.29, −6	2.25, −2	NA	NA	NA