chipless tag designs in hfss by eng mohammed ali

Chip-less tag

·W = 0.3 cm·L = Variable length of a strip

·W = 0.3 cm·L = Variable length of a strip

Width = 0.5 cm

Length = 5.5 cm

Unit cell for chip-less tag

w

L

W

Variation of the frequency with length

·W = 3 mm

·L1 = 5.3 cm

·L2 = 5.2 cm

·L3 = 5.1 cm

·L4 = 5 cm

·L5 = 4.9 cm

·W = 3 mm

·L1 = 5.3 cm

·L2 = 5.2 cm

·L3 = 5.1 cm

·L4 = 5 cm

·L5 = 4.9 cm

Width = 2.5 cm

Length = 5.5 cm

L1 L2 L3 L4 L5

Five-bit chip-less tag

w

HFSS design of a rectangular Chip-less Tag

2.30 2.35 2.40 2.45 2.50 2.55 2.60 2.65Freq [GHz]

-19.50

-19.00

-18.50

-18.00

-17.50

-17.00

-16.50dB

(RCS

Tota

l)HFSSDesign1XY Plot 1 ANSOFT

Curve Info

dB(RCSTotal)Setup1 : SweepPhi='0deg' Theta='0deg'

RADAR cross section(RCS)

Unit cell for Ellipse chip-less Tag

2.5 cm

2.6 cm

Variation of the frequency with radius

Five-bit Ellipse chip-less tag

3.00 3.25 3.50 3.75 4.00 4.25 4.50Freq [GHz]

-22.50

-21.25

-20.00

-18.75

-17.50

-16.25

-15.00dB

(RC

STot

al)

HFSSDesign1XY Plot 1 ANSOFT

Curve Info

dB(RCSTotal)Setup1 : Sw eepPhi='0deg' Theta='0deg'

RADAR cross section(RCS)