IEEE Circuits and Systems Magazine - Q4 2020 - 60

60 	

IEEE CIRCUITS AND SYSTEMS MAGAZINE 		

FOURTH QUARTER 2020

1.96−2.46

1.7−2.6

1.7−2.8

0.55−1.10

1.65−2.75

0.9−1.8

1.8−2.7

1.3−1.8

1.4−2.1

1.5−2.5

1.6−2.4

1.6−2.7

1.25−2.3

[22]

[23]

[24]

[25]

[30]

[31]

[32]

[34]

[36]

[39]

[44]

[50]

[53]

2 x 13 W

2 x 13 W

2 x 13 W

2 x 13 W

2 x 13 W

2 x 13 W

2x8W

2 x 45 W

2 x 13 W

2 x 13 W

2 x 13 W

2 x 30 W

2 x 13 W

Device

60

51

40

50

40

32.3

40

66.7

50

67

49

41.8

23

B.W.
(%)

40−52

46.5−63.5

55−64

>42

60−65

50−53

47.5−54

41.7−58

51−66

40−52

50−55

47−57

40−44

b

52−80

56−75.3

68−76

>55

65−85

60−76

55−60

54.2−73.4

60−77

56−72

57−71

57−66

46−60

b

DE. @ 6 dB DE. @ Sat.
OBO (%)
(%)

b

Power-Added Efficiency (PAE).

aP.U.F is defined as (measured saturation power)/(devices' nominal saturated power).

Freq.(GHz)

Ref

−42.5 − −27.5

−30.1

<−37

-

−42 − −28

< −27

−40 − −29.5

−30.2 − −22.5

−31.5 − −25

−32 − −28

−35 − −28

−34 − 27

−31 − −22.5

ACPR @ 6 dB
OBO (dBc)

Table II.
The comparison with state-of-the-art wideband sub-6 GHz Doherty PAs.

6.2−8.5

9.4−13

10−12.5

10.5−14

8.8−10

10−12.2

8.8−13.2

6−14

9.3−11.7

10.2−14.3

12−14

10.2−11.6

10−13.5

Gain @
6 dB (dB)

43−44.5

43.8−45.2

42.7−43.3

42−44.5

42.8−43.5

42.8−43

40.5−41.4

49.7−51.4

44.5−46.3

42−43.5

44−44.5

44.6−46.3

39.5−41.7

Pout (dBm)

0.77−1.09

0.92−1.27

0.9

0.61−1.08

0.73−0.86

0.73−0.77

0.7−0.86

1.04−1.53

1.08−1.64

0.61−0.86

0.97−1.08

0.48−0.71

0.34−0.57

P.U.F.a

2012
2015
2016
2017
2016
2019
2017
2017
2018
2016
2015
2018
2020

Post-matching Doherty PA-low-order
impedance inverters
Post-matching Doherty PA- Integrated
Compensating Reactance
Conventional Doherty PA-Bandwidth
enhanced
Post-matching Doherty PA-continued
mode
Post-matching Doherty PA-Multiresonance circuit
Post-matching Doherty PA-mutual
coupled SHSN
Post-matching Doherty PA-modified
phase compensation network
Post-matching Doherty PA-mixed
topology
Conventional Doherty PA-Bandwidth
enhanced
Conventional Doherty PA-Bandpass
Auxiliary Transformer
Post-matching Doherty PA-Noninfinity
peaking impedance
Post-matching Doherty PA-Paralleled
Right- and Left-Handed
Impedance Transformers

Year

Transformer-less load-modulated
architecture

Design Technology



IEEE Circuits and Systems Magazine - Q4 2020

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