Flexible

TWISTABLE AND NON-TWISTABLE FLEXIBLE
WAVEGUIDE
The Mitec Telecom Ltd range of twistable (M1640) and nontwistable (M1650) flexible waveguide is available with a Neoprene
or Silicone jacket in a variety of sizes from WR284 to WR28.
The core is manufactured from pre-convoluted brass strip helically
wound to extremely close tolerances around a rectangular mandrel.
Twistable cores (M1640) are silver-clad and are locked by a plated
copper sealing wire inserted into the seam during winding.
Non-twistable cores (M1650) are also silver-clad and are locked by
a solder wire, which forms a continuous solder fillet running the
entire length of the seam. Non-twistable cores can be pressurised
without a rubber jacket.

ELECTRICAL SPECIFICATIONS
FOR TWISTABLE M1640 & NON-TWISTABLE M1650
WG
CODE
01
02
03
04
05
06
07
08
09
10
11
13

WAVEGUIDE
SIZE
WG10
WG11A
WG12
WG13
WG14
WG15
WG16
WG17
WG18
WG19
WG20
WG22

FREQUENCY

WR284
WR229
WR187
WR159
WR137
WR112
WR90
WR75
WR62
WR51
WR42
WR28

(GHz)
2.60 - 3.95
3.30 - 4.90
3.95 - 5.85
4.90 - 7.05
5.85 - 8.20
7.05 - 10.00
8.20 - 12.40
10.00 - 15.00
12.40 - 18.00
15.00 - 22.00
18.00 - 26.50
26.50 - 40.00

ATTEN.
NOMINAL
TEST
FREQUENCY
(GHz)
3.15
3.85
4.75
5.90
6.45
9.40
9.40
13.70
14.00
18.50
22.00
34.00

MAX.
ATTEN.
(dB/m)
0.13
0.13
0.16
0.26
0.30
0.40
0.50
0.60
0.91
1.80
2.30
3.25

MAX. VSWR
PLAIN/PLAIN
FLANGES
<1m
1.04
1.05
1.05
1.05
1.05
1.07
1.07
1.08
1.10
1.15
1.18

MAX. VSWR
PLAIN/CHOKE
FLANGES

>1m
<1m
1.07
1.07
1.07
1.07
1.07
1.08
1.08
1.09
1.09
1.10
1.10
1.10
1.10
1.10
1.10
1.13
1.13
1.18
1.17
1.23
1.20
1.30 (1m MAX.)

<1m
1.10
1.10
1.10
1.10
1.13
1.13
1.13
1.16
1.20
1.25

MAX.
CW
POWER
M1640
(KW)
6.50
3.00
2.50
2.00
1.26
0.96
0.75
0.22
0.14
0.10
0.10

MAX.
CW
POWER
M1650
(KW)
8.50
3.40
2.50
1.70
0.80
0.62
0.50
0.30
0.23
0.12
N/A

MECHANICAL SPECIFICATIONS
FOR TWISTABLE M1640 & NON-TWISTABLE M1650
WG
CODE
01
02
03
04
05
06
07
08
09
10
11
13

WAVEGUIDE
SIZE
WG10
WG11A
WG12
WG13
WG14
WG15
WG16
WG17
WG18
WG19
WG20
WG22

WR284
WR229
WR187
WR159
WR137
WR112
WR90
WR75
WR62
WR51
WR42
WR28

TWIST & NON-TWIST (M1640 & M1650)
BENDING RATING
STATIC
REPEATED
E-Plane
H-Plane
E-Plane
H-Plane
Rad. (mm)
Rad. (mm)
Rad. (mm)
Rad. (mm)
178
356
712
1424
165
330
660
1320
165
330
660
1320
127
254
508
1016
102
204
408
816
76
152
304
608
64
128
256
512
64
114
256
512
51
102
204
408
51
102
204
408
38
76
152
304
T.B.A.

TWIST ONLY (M1640)
TWISTING RATING
STATIC
REPEATED
Tolerance
Twist
(± deg./m)
(± deg./m)
104
26
130
33
156
39
182
46
208
52
260
65
312
78
364
91
442
111
462
111
504
147

MAXIMUM
OPERATING
PRESSURE
M1640
M1650
(psig)
(psig)
20
40
30
40
30
40
30
40
30
40
35
50
45
50
45
50
45
50
45
60
45
60

Issue No. 1

TWISTABLE AND NON-TWISTABLE FLEXIBLE
WAVEGUIDE
JACKET / PAINT CODES
x
x

P
S

x

N

Black paint (M1650 only)
Silicone
x Shore hardness: 50° - 55°
x Operating temperature: -55°C to +135°C
Neoprene
x Shore hardness: 45° - 50°
x Operating temperature: -50°C to +100°C

FLANGE FINISH CODES
x
x
x
x

E
U
T
S

Both flanges electroless nickel
Both flanges unplated, irrideted and polished
Both flanges silver-plated
Both flanges tin-plted

FLANGE NUMERIC CODES
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x

01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18

CPR style grooved (CPRG)
CPR style flat (CPRF)
CMR style standard hole pattern
CMR style all clear holes
CMR style all tapped holes
Cover style
Choke style
Special customer specified type
PDR style (European CPRG)
UDR style (European CPRF)
UBR style (European cover)
PBR style (European cover groove)
CBR style (European choke)
CAR style (European)
PAR style (European)
UAR style (European)
UER style (European CMR all clear)
Cover style with 0-ring groove