Continuously Frequency-Tunable Horn Filtennas Based on Dual-Post Resonators

Table 1

Experimental characterization of the proposed filtenna for four configurations.

Scenario	Screw depth (mm)	S11 (dB)	Radiation efficiency (%)	Received power (dBm)	EVM (RMS%)	SNR (dB)
Sc. 1	d1 = 1.2 d2 = 1.8	−1	18.25	−41.64	18.47	11.54
Sc. 2	d1 = 0.8 d2 = 1.4	−7	73.86	−29.32	7.155	24.17
Sc. 3	d1 = 0.6 d2 = 1.2	−15	87.16	−22.64	4.58	20.31
Sc. 4	d1 = 0.5 d2 = 1	−20	97.8	−18.46	3.69	11.54