Analytical model for patch-slot elements of reconfigurable reflectarray
D. Dancila, D. Cavallo, I. E. Lager, A. Neto and A. Rydberg
contact: dragos.dancila@angstrom.uu.se
Array element is 18 x 18 mm2 with 2 x 8 RF-MEMS in two slots.
Patch is 3.3 x 3.3 mm2, biasing lines and DC pads are integrated.
Cross section:
Reflect array element:
X-band reflectarray element:
Harish Rajagopalan, Yahya Rahmat-Samii,
William A. Imbriale, IEEE Transactions on Antennas and Prop., vol. 56, issue 12, pp. 3689-3699
Wake Vortex:
Monolithically Integrated Patch-Slot Element for X-Band Reconfigurable Reflectarrays
EU project NANOTEC – Dem.1:
Reflect Array Antenna for Wake Vortex Detection RadarEU project NANOTEC – Dem.1:
Reflect Array Antenna for Wake Vortex Detection Radar
O. Luukkonen, et. al., Simple and Accurate Analytical Model of Planar Grids and High-Impedance Surfaces
Comprising Metal Strips or Patches. IEEE Transactions on Antennas and Propagation, vol. 56, issue 6, pp. 1624-1632
8 9 10 11 12 13 14 15 16 17 18
30 35 40 45
f (GHz) Re[Z slot]
8 9 10 11 12 13 14 15 16 17 18
2.2 2.3 2.4 2.5
f (GHz) k slot/k 0
Analytical Model for Patches with open slot in the back metallization Analytical Model of Patches
angle Matlab HFSS diff (°) (GHz) (GHz)
0 11.7 11.62 0.68%
60 12.1 12.03 0.58%
85 12.2 12.15 0.41%
impedance of the array of patches under TE-pol.
Garg, R.; Gupta, K.C., "Expressions for Wavelength and Impedance of a Slotline (Letters),"
Microwave Theory and Techniques, IEEE Transactions on , vol.24, no.8, pp.532,532, Aug 1976
Slot line characteristics
