CPW-fed annular monopole antenna

1.

2. $info-doc-name

CPW-fed annular monopole antenna
Antenna 1 : Results

3. $info-doc-name

CPW-fed annular monopole antenna
Antenna 1 : sketches, objectives and parameters

4.

Name
Description
fmin
Minimum frequency
Di
Ring inner diameter
Do
Ring outer diameter
Sr
Ring offset
Lg
CPW groundplane length
Wgb
Bottom groundplane width
Wgt
Top groundplane width
Wbi
CPW inner width at the feedpoint
Wti
CPW inner width at the top of the CPW
Wgo
CPW outer width
Antenna Magus 10.1.0: Sunday, February 02, 2020
Antenna Structure: Antenna Parameters

5.

Name
Description
εr
Relative permittivity of the substrate
Hs
Substrate height
tanδ
Loss tangent of the substrate
X
Device X-dimension
Y
Device Y-dimension
Z
Device Z-dimension
Antenna Magus 10.1.0: Sunday, February 02, 2020
Antenna Structure: Antenna Parameters (2)

6. $title: $subtitle $page-count

Top view
Antenna Magus 10.1.0: Sunday, February 02, 2020
Sketches
Side view

7. $info-doc-name

Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Preview

8. $chart-group-title

Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Front Side Pre

9. $chart-group-title

Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Left Side Prev

10.

Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Right Side Pre

11. $chart-group-title $page-count

Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Top Side Prev

12.

Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Bottom Side P

13.

P_GSM-900 Base station (TX) 1: Design Object
Name
Description
Value
fmin
Minimum frequency
935 MHz
Rin
Input resistance
50 Ω
Name
Substrate: The substrate name.
Manufacturer
Substrate: The substrate
manufacturer.
Substrate Thickness
Substrate: The thickness of the
substrate.
1.630 mm
Relative Permittivity
Substrate: The relative permittivity
of the substrate.
3.48
Antenna Magus 10.1.0: Sunday, February 02, 2020
Objective Group: all options

14.

Name
Description
Value
Di
Ring inner diameter
23.53 mm
Do
Ring outer diameter
38.50 mm
Sr
Ring offset
2.674 mm
Lg
CPW groundplane length
71.79 mm
Wgb
Bottom groundplane width
149.7 mm
Wgt
Top groundplane width
11.76 mm
Wbi
CPW inner width at the feedpoint
2.695 mm
Wti
CPW inner width at the top of the
CPW
1.070 mm
Wgo
CPW outer width
3.083 mm
εr
Relative permittivity of the
substrate
3.48
Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Physical Param

15.

Name
Description
Value
Hs
Substrate height
1.630 mm
tanδ
Loss tangent of the substrate
0
Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Physical Param

16.

Name
Description
Value
X
Device X-dimension
113.0 mm
Y
Device Y-dimension
149.7 mm
Z
Device Z-dimension
1.630 mm
Antenna Magus 10.1.0: Sunday, February 02, 2020
P_GSM-900 Base station (TX) 1: Derived Quan

17.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Preview

18.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Front Side Preview

19.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Left Side Preview

20.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Right Side Preview

21.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Top Side Preview

22.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Bottom Side Preview

23.

Tweak 1-1: Design Objectives
Name
Description
Value
fmin
Minimum frequency
935 MHz
Rin
Input resistance
50 Ω
Name
Substrate: The substrate name.
Manufacturer
Substrate: The substrate
manufacturer.
Substrate Thickness
Substrate: The thickness of the
substrate.
1.630 mm
Relative Permittivity
Substrate: The relative permittivity
of the substrate.
3.48
Antenna Magus 10.1.0: Sunday, February 02, 2020
Objective Group: all options

24.

Name
Description
Value
Di
Ring inner diameter
23.53 mm
Do
Ring outer diameter
38.50 mm
Sr
Ring offset
2.674 mm
Lg
CPW groundplane length
71.79 mm
Wgb
Bottom groundplane width
149.7 mm
Wgt
Top groundplane width
11.76 mm
Wbi
CPW inner width at the feedpoint
2.695 mm
Wti
CPW inner width at the top of the
CPW
1.070 mm
Wgo
CPW outer width
3.083 mm
εr
Relative permittivity of the
substrate
3.828
Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Physical Parameters

25.

Name
Description
Value
Hs
Substrate height
1.630 mm
tanδ
Loss tangent of the substrate
20e-3
Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Physical Parameters (2)

26.

Name
Description
Value
X
Device X-dimension
113.0 mm
Y
Device Y-dimension
149.7 mm
Z
Device Z-dimension
1.630 mm
Antenna Magus 10.1.0: Sunday, February 02, 2020
Tweak 1-1: Derived Quantities

27.

CPW-fed annular monopole antenna
Antenna 1 : estimated performance charts

28.

Impedance vs Frequency
Input Impedance vs Frequency
Port 1 Real
Port 1 Imaginary
79
39
19
-1
0,935
1,935
2,935
3,935
-21
-41
Frequency (GHz)
4,935
5,935
6,935
Antenna Magus 10.1.0: Sunday, February 02, 2020
Impedance (Ω)
59

29.

Impedance vs Frequency
Reflection coefficient (20log|Γ|)
Port 1
-90,935
1,935
2,935
3,935
4,935
5,935
6,935
-19
-24
-29
-34
Frequency (GHz)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Reflection coefficient (dB)
-14

30.

Impedance vs Frequency
Reflection coefficient (20log|Γ|)
P_GSM-900 Base station (TX) 1
(50+0j) Ω
Antenna Magus 10.1.0: Sunday, February 02, 2020
Reference impedance @ port 1

31.

Impedance vs Frequency
VSWR
Port 1
3
2,8
2,6
VSWR
2,2
2
1,8
1,6
1,4
1,2
1
0,935
1,935
2,935
3,935
Frequency (GHz)
4,935
5,935
6,935
Antenna Magus 10.1.0: Sunday, February 02, 2020
2,4

32.

Impedance vs Frequency
VSWR
P_GSM-900 Base station (TX) 1
(50+0j) Ω
Antenna Magus 10.1.0: Sunday, February 02, 2020
Reference impedance @ port 1

33.

Far Field vs Angle @ fmin
Gain (Total - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

34.

Far Field vs Angle @ fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Total - normalised)

35.

Far Field vs Angle @ fmin
Gain (LHC - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

36.

Far Field vs Angle @ fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (LHC - normalised)

37.

Far Field vs Angle @ fmin
Gain (RHC - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

38.

Far Field vs Angle @ fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (RHC - normalised)

39.

Far Field vs Angle @ fmin
Gain (Horizontal - normalised)
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-0,1
-0,2
-0,4
-0,5
-0,6
-0,7
-0,8
-0,9
-1
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-0,3

40.

Far Field vs Angle @ fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Horizontal - normalised)

41.

Far Field vs Angle @ fmin
Gain (Vertical - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

42.

Far Field vs Angle @ fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Vertical - normalised)

43.

Far Field vs Angle @ fmin
Axial Ratio (Handed)
Φ = 0°
Φ = 90°
1
0,8
0,6
-180
0,2
0
-130
-80
-30
20
-0,2
-0,4
-0,6
-0,8
-1
Angle (°)
70
120
170
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio
0,4

44.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ fmin
Axial Ratio (Handed)

45.

Far Field vs Angle @ fmin
Axial Ratio (IEEE)
Φ = 0°
Φ = 90°
80
70
50
40
30
20
10
0
-180
-130
-80
-30
20
Angle (°)
70
120
170
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio (dB)
60

46.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ fmin
Axial Ratio (IEEE)

47.

Far Field vs Angle @ fmin
Ludwig III (Co)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

48.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ fmin
Ludwig III (Co)

49.

Far Field vs Angle @ fmin
Ludwig III (Cross)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

50.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ fmin
Ludwig III (Cross)

51.

Far Field vs Angle @ 2 fmin
Gain (Total - normalised)
Φ = 0°
-180
-130
-80
-30
Φ = 90°
-2
20
70
120
170
Gain (dBi)
-12
-17
-22
-27
-32
-37
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-7

52.

Far Field vs Angle @ 2 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Total - normalised)

53.

Far Field vs Angle @ 2 fmin
Gain (LHC - normalised)
Φ = 0°
-180
-130
-80
-30
Φ = 90°
-2
20
70
120
170
Gain (dBi)
-12
-17
-22
-27
-32
-37
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-7

54.

Far Field vs Angle @ 2 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (LHC - normalised)

55.

Far Field vs Angle @ 2 fmin
Gain (RHC - normalised)
Φ = 0°
-180
-130
-80
-30
Φ = 90°
-2
20
70
120
170
Gain (dBi)
-12
-17
-22
-27
-32
-37
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-7

56.

Far Field vs Angle @ 2 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (RHC - normalised)

57.

Far Field vs Angle @ 2 fmin
Gain (Horizontal - normalised)
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-0,2
-0,4
-0,8
-1
-1,2
-1,4
-1,6
-1,8
-2
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-0,6

58.

Far Field vs Angle @ 2 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Horizontal - normalised)

59.

Far Field vs Angle @ 2 fmin
Gain (Vertical - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

60.

Far Field vs Angle @ 2 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Vertical - normalised)

61.

Far Field vs Angle @ 2 fmin
Axial Ratio (Handed)
Φ = 0°
Φ = 90°
1
0,8
0,6
-180
0,2
0
-130
-80
-30
20
-0,2
-0,4
-0,6
-0,8
-1
Angle (°)
70
120
170
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio
0,4

62.

Far Field vs Angle @ 2 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio (Handed)

63.

Far Field vs Angle @ 2 fmin
Axial Ratio (IEEE)
Φ = 0°
Φ = 90°
80
70
50
40
30
20
10
0
-180
-130
-80
-30
20
Angle (°)
70
120
170
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio (dB)
60

64.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 2 fmin
Axial Ratio (IEEE)

65.

Far Field vs Angle @ 2 fmin
Ludwig III (Co)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

66.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 2 fmin
Ludwig III (Co)

67.

Far Field vs Angle @ 2 fmin
Ludwig III (Cross)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

68.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 2 fmin
Ludwig III (Cross)

69.

Far Field vs Angle @ 4 fmin
Gain (Total - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-10
-15
-20
-25
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-5

70.

Far Field vs Angle @ 4 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Total - normalised)

71.

Far Field vs Angle @ 4 fmin
Gain (LHC - normalised)
Φ = 0°
-180
-130
-80
-30
Φ = 90°
-1
20
70
120
170
-11
-16
-21
-26
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-6

72.

Far Field vs Angle @ 4 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (LHC - normalised)

73.

Far Field vs Angle @ 4 fmin
Gain (RHC - normalised)
Φ = 0°
-180
-130
-80
-30
Φ = 90°
-1
20
70
120
170
-11
-16
-21
-26
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-6

74.

Far Field vs Angle @ 4 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (RHC - normalised)

75.

Far Field vs Angle @ 4 fmin
Gain (Horizontal - normalised)
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-0,5
-1
-2
-2,5
-3
-3,5
-4
-4,5
-5
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-1,5

76.

Far Field vs Angle @ 4 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Horizontal - normalised)

77.

Far Field vs Angle @ 4 fmin
Gain (Vertical - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

78.

Far Field vs Angle @ 4 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Vertical - normalised)

79.

Far Field vs Angle @ 4 fmin
Axial Ratio (Handed)
Φ = 0°
Φ = 90°
1
0,8
0,6
-180
0,2
0
-130
-80
-30
20
-0,2
-0,4
-0,6
-0,8
-1
Angle (°)
70
120
170
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio
0,4

80.

Far Field vs Angle @ 4 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio (Handed)

81.

Far Field vs Angle @ 4 fmin
Axial Ratio (IEEE)
Φ = 0°
Φ = 90°
80
70
50
40
30
20
10
0
-180
-130
-80
-30
20
Angle (°)
70
120
170
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio (dB)
60

82.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 4 fmin
Axial Ratio (IEEE)

83.

Far Field vs Angle @ 4 fmin
Ludwig III (Co)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

84.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 4 fmin
Ludwig III (Co)

85.

Far Field vs Angle @ 4 fmin
Ludwig III (Cross)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

86.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 4 fmin
Ludwig III (Cross)

87.

Far Field vs Angle @ 8 fmin
Gain (Total - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
Gain (dBi)
-10
-15
-20
-25
-30
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-5

88.

Far Field vs Angle @ 8 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Total - normalised)

89.

Far Field vs Angle @ 8 fmin
Gain (LHC - normalised)
Φ = 0°
-180
-130
-80
Φ = 90°
-30
20
70
120
170
-3
-13
-18
-23
-28
-33
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-8

90.

Far Field vs Angle @ 8 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (LHC - normalised)

91.

Far Field vs Angle @ 8 fmin
Gain (RHC - normalised)
Φ = 0°
-180
-130
-80
Φ = 90°
-30
20
70
120
170
-3
-13
-18
-23
-28
-33
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-8

92.

Far Field vs Angle @ 8 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (RHC - normalised)

93.

Far Field vs Angle @ 8 fmin
Gain (Horizontal - normalised)
Φ = 90°
-180
-130
-80
-30
20
70
120
170
-1
-5
-7
-9
-11
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (dBi)
-3

94.

Far Field vs Angle @ 8 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Horizontal - normalised)

95.

Far Field vs Angle @ 8 fmin
Gain (Vertical - normalised)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

96.

Far Field vs Angle @ 8 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Gain (Vertical - normalised)

97.

Far Field vs Angle @ 8 fmin
Axial Ratio (Handed)
Φ = 0°
Φ = 90°
1
0,8
0,6
-180
0,2
0
-130
-80
-30
20
-0,2
-0,4
-0,6
-0,8
-1
Angle (°)
70
120
170
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio
0,4

98.

Far Field vs Angle @ 8 fmin
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio (Handed)

99.

Far Field vs Angle @ 8 fmin
Axial Ratio (IEEE)
Φ = 0°
Φ = 90°
80
70
50
40
30
20
10
0
-180
-130
-80
-30
20
Angle (°)
70
120
170
Antenna Magus 10.1.0: Sunday, February 02, 2020
Axial Ratio (dB)
60

100.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 8 fmin
Axial Ratio (IEEE)

101.

Far Field vs Angle @ 8 fmin
Ludwig III (Co)
Φ = 0°
-180
-130
-80
Φ = 90°
-30
20
70
120
170
-4
Gain (dBi)
-14
-19
-24
-29
-34
-39
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-9

102.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 8 fmin
Ludwig III (Co)

103.

Far Field vs Angle @ 8 fmin
Ludwig III (Cross)
Φ = 0°
Φ = 90°
0
-180
-130
-80
-30
20
70
120
170
-5
Gain (dBi)
-15
-20
-25
-30
-35
-40
Angle (°)
Antenna Magus 10.1.0: Sunday, February 02, 2020
-10

104.

Antenna Magus 10.1.0: Sunday, February 02, 2020
Far Field vs Angle @ 8 fmin
Ludwig III (Cross)