Table 5 A comparison between the proposed RF rectifier and the recent implantable rectifiers.

From: A multiband SSr diode RF rectifier with an improved frequency ratio for biomedical wireless applications

[Ref.]

\(f_{o}\) (GHz)

Dimension \(\lambda _{g}\) \(\times\) \(\lambda _{g}\)

Max. PCE (%) : [\(P_{in}\) (dBm)]

Diode/ Topology

Substrate (\(\varepsilon _{r}\))

20

0.915

NA

59.70 : [30]

SMS7630 Voltage Multiplier

RO3210 (10.2)

21

0.673

NA

40 : [NA]

HSMS285B Voltage Multiplier

FR-4 (4.4)

22

0.915

0.14 x 0.16

51.7 : [-5]

HSMS2852 Dual- Single Series

RO3210 (10.2)

23

0.915, 2.45

0.36 x 0.20

81.7, 73.1 : [12]

HSMS2852 Dual-Single Series

Arlon AD 255 (2.55)

24

2.45, 5.8

1.37 x 0.83

63.00, 54.80 : [12]

HSMS2850 SSr

FR-4 (4.4)

25

2.32, 3.48

0.46 x 0.27

14.5, 64.2 : [5]

SMS7621 Single-Shunt

TACONIC TLY-5 (2.2)

26

1.78, 2.35, 4.97

NA

60.95, 71.35 ; 54.01 : [5]

BAT15-03W Single-Shunt

RO4003C (3.38)

27

1.85, 2.15, 2.48

0.41 x 0.74

48, 52, 45 : [-5]

HSMS2850 SSr

RO5880 (2.2)

28

1.95, 2.7, 5.8

0.43 x 0.27

62.2, 59.40, 48.9 : [0]

HSMS2860 SSr

RO4003 (3.38)

29

1.80, 2.10, 2.40 2.65, 3.50

0.75 \(\times\) 0.75

23.2 : [-20]

SMS7630 SSr

F4BM-2 (2.65)

30

0.90, 1.80, 2.10, 2.40

NA

15 : [-20]

MSS20-141 Dual-Single Series

R04003 (3.3)

31

0.55, 0.75, 0.9 1.85, 2.15, 2.45

0.1 \(\times\) 0.11

67 : [-5]

SMS7630 Dual-Single Series

RO5880 (2.2)

32

1.80, 2.10, 2.40 2.60, 3.50, 4.90, 5.80

0.50 \(\times\) 0.40

44.40, 43.90, 45.40 43.40, 36.10, 32.40 28.30 : [-10]

SMS7630 SSr

RO5880 (2.2)

This Work

1.81, 2.03, 2.45, 2.63

0.27 \(\times\) 0.29

63.6, 72.7, 72.10, 53.6 : [2]

HSMS2850 SSr

FR-4 (5.4)

  1. SSr: Single Series Diode
  2. \(\lambda _{g}\): Wavelength at the lowest operating frequency (\(f_{o}\)), NA: Not available.