Guide d`onda - Università degli studi di Pavia

Corso di Misure a Microonde
Guide d’onda
Prof. Luca Perregrini
Dipartimento di Elettronica, Università di Pavia
e-mail: [email protected], web: microwave.unipv.it
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 1
Sommario
• Denominazioni e campi di frequenze
• Costante di perdita
• Flange
• Transizioni guida/cavo coassiale
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 2
Tipi di guide d’onda
• rettangolari
• circolari
• ridge
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 3
Guide d’onda rettangolari
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 4
Guide d’onda rettangolari
Waveguide Frequency Ranges, Dimensions and Designations
Range
GHz
0.32 - 0.49
0.35 - 0.53
0.41 - 0.625
0.49 - 0 75
0.64 - 0.96
0.75 - 1.12
0.96 - 1.45
1.12 - 1.7
1.45 - 2.2
1.7 - 2.6
2.2 - 3.3
2.6 - 3.95
3.3 - 4.9
3.95 - 5.85
4.9 - 7.05
5.85 - 8.2
7.05 - 10.0
8.2 - 12.4
10.0 - 15.0
12.4 - 18.0
15.0 - 22.0
18.0 - 26.5
22.0 - 33.0
26.5 - 40.0
33.0 - 50.0
40.0 - 60.0
50.0 - 75.0
60.0 - 90.0
75.0 - 110.0
90.0 - 140.0
110.0 - 170.0
140.0 - 220.0
170.0 - 260.0
220.0 - 325.0
Misure a Microonde
Internal
(inches)
23.0 x 11.0
21.0 x 10.5
18.0 x 9.0
15.0 x 7.5
11.5 x 5.75
9.75 x 4.875
7.7 x 3.85
6.5 x 3.25
5.1 x 2.55
4.3 x 2.15
3.4 x 1.7
2.84 x 1.34
2.29 x 1.145
1.872 x 0.872
1.59 x 0.795
1.372 x 0.622
1.122 x 0.497
0.9 x 0.4
0.75 x 0.375
0.622 x 0.311
0.510 x 0.255
0.420 x 0.170
0.340 x 0.170
0.280 x 0.140
0.224 x 0.112
0.188 x 0.094
0.148 x 0.074
0.122 x 0.061
0.100 x 0.050
0.080 x 0.040
0.065 x 0.0325
0.051 x 0.0255
0.043 x 0.0215
0.034 x 0.017
Internal
(mm. approx)
584.0 x 292.0
533.0 x 267.0
457.0 x 229 0
381.0 x 191.0
292.0 x 146 0
248.0 x 124.0
196.0 x 98.0
165.0 x 83.0
131.0 x 65.0
109.0 x 55.0
86.0 x 43.0
72.0 x 34.0
59.0 x 29.0
48.0 x 22.0
40.0 x 20.0
35.0 x 16.0
29.0 x 13.0
23.0 x 10.0
19.0 x 9.5
16.0 x 7.9
13.0 x 5.8
11.0 x 4.3
8.6 x 4.3
7.1 x 3.6
5.7 x 2.9
4.8 x 2.4
3.8 x 1.9
3.1 x 1.6
2.4 x 1.3
2.0 x 1.0
1.7 x 0.82
1.3 x 0.65
1.1 x 0.55
0.87 x 0.44
Official Designations
I.E.C.
U.K. (RCSC)
WG00
WG0
WG1
WG2
WG3
WG4
WG5
R14
WG6
R18
WG7
R22
WG8
R26
WG9A
R32
WG10
R40
WG11A
R48
WG12
R58
WG13
R70
WG14
R84
WG15
R100
WG16
R120
WG17
R140
WG18
R180
WG19
R220
WG20
R260
WG21
R320
WG22
R400
WG23
R500
WG24
R620
WG25
R740
WG26
R900
WG27
R1200
WG28
WG29
WG30
WG31
WG32
U.S. (EIA)
WR2300
WR2100
WR1800
WR1500
WR1150
WR975
WR770
WR650
WR510
WR430
WR340
WR284
WR229
WR187
WR159
WR137
WR112
WR90
WR75
WR62
WR51
WR42
WR34
WR28
WR22
WR19
WR15
WR12
WR10
WR8
WR7
WR5
WR4
WR3
Prof. Luca Perregrini
Commercial Designations
U.S. (JAN)
UK
D-B
H-P
RG-201/U
RG-202/U
RG-203/U
RG-204/U
RG-205/U
RG-69/U
MRI
Narda
Philips
TRG
L
L
L(25cm)
D
L
M
LS
S
S(10cm)
A(7.5cm)
C
C(6cm)
C
XN
J(4.5cm)
XB
H(3.5cm)
X
X(3cm)
S
P
L
L
RG-104/U
RG-112/U
RG-48/U
S
L
S
S
RG-49/U
C
K
C
J
H
G
FA
FA
N
E
G
C
J
H
X
M
P
K
K
XB
XL
X
RG-50/U
RG-51/U
RG-52/U
X
RG-91/U
J
RG-53/U
KU
KU
P(2cm)
K
C
XL
X
Ku
K
I
RG-96/U
RG-97/U
RG-98/U
RG-99/U
RG-138/U
RG-136/U
RG-135/U
RG-137/U
RG-139/U
Q
O
D
C
R
V
Q
B
A
M
E
W
N
Q(8mm)
E(4mm)
B(2mm)
A(7.5cm)
R
A
B
U
V
E
W
F
D
G
H
J
Guide d’onda, pag. 5
Perdite nelle guide d’onda rettangolari
Waveguide loss
(ideal, due to skin effect, pure copper)
Waveguide loss
(ideal, due to skin effect, pure copper)
2.0
4.0
1.8
3.5
.
1.4
Loss (dB/meter)
Loss (dB/meter)
.
1.6
1.2
WR-90
1.0
0.8
0.6
0.4
3.0
2.5
2.0
WR-90
WR-62
1.5
WR-42
WR-28
1.0
WR-19
WR-15
0.2
0.5
0.0
0.0
WR-12
WR-10
0
2
4
6
8
10
12
14
20
40
60
80
100
120
Frequency (GHz)
Frequency (GHz)
Misure a Microonde
0
Prof. Luca Perregrini
Guide d’onda, pag. 6
Flange
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 7
Flange
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 8
Flange
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 9
Transizione guida/coassiale
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 10
Transizione guida/coassiale
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 11
Transizione guida/coassiale
Misure a Microonde
Prof. Luca Perregrini
Guide d’onda, pag. 12