Experimental Characterization of 2 × 2 Electronically Reconfigurable Polarization Converter Unit Cells at X-Band

Table 1

Main features of the unit cell.

Parameter	Unit/description
Unit cell size	15 mm × 15 mm
Outer patch diameter	7.8 mm
Inner patch diameter	4.8 mm
Substrate	Taconic RF-35 (εr = 3.5, tanδ = 0.0018, h = 1.52 mm)
Bonding film	εr = 3.38, tanδ = 0.028, h = 0.1 mm
Dimeter of connecting via	0.4 mm
Diameter of bias via	0.4 mm
Ground plane opening diameter	0.7 mm
PIN diode	MACOM MA4GP907
Annular ring diameter	4.8 mm