|
| |
|
SPA Ferrite Domen
Microwave Hexaferrites
Hexaferrites occupy a special place among the microwave magnetic
materials. They feature high magnetic anisotropy (17 kOe) and are
recommended for the use in millimeter wave isolators and circulators
workable at frequencies 10 GHz through 100GHz. Hexaferrites permit to
create miniaturized yet discrete microwave devices that do not require a
permanent biasing magnets in the component package.
High density hexaferrites are ideal for MIC application and
microstrip mm-wave devices.
Hexaferrites
|
Material grade
|
HAeff
kOe
+5%
|
4pMs
G
+5%
|
DH
(-3dB)
Oe
no more than
|
e'
+5%
|
tgde
.104
no more than
|
Tc
oC
nomin
|
Hc
kOe
nomin
|
r
g/cm3
|
|
H-6
|
6
|
2850
|
3,0
|
13
|
10
|
450
|
0,07
|
4,20
|
|
H-9
|
9
|
3000
|
3,5
|
13
|
8
|
475
|
0,15
|
4,10
|
|
H-12
|
12
|
3150
|
3,5
|
13
|
8
|
520
|
0,4
|
4,10
|
|
H-15
|
15
|
2900
|
3,5
|
13
|
8
|
400
|
1,5
|
4,10
|
|
H-18
|
18
|
2200
|
3,5
|
13
|
10
|
435
|
2,5
|
4,10
|
|
H-21
|
21
|
1800
|
3,0
|
13
|
20
|
400
|
2,8
|
4,10
|
|
H-23
|
23
|
1900
|
3,5
|
14
|
10
|
310
|
3,0
|
4,10
|
|
H-25
|
25
|
1700
|
3,5
|
14
|
10
|
300
|
3,0
|
4,10
|
|
H-28
|
28
|
1400
|
3,5
|
14
|
10
|
270
|
3,0
|
4,10
|
|
H-31
|
31
|
1500
|
3,0
|
15
|
20
|
255
|
3,0
|
4,40
|
|
H-33
|
33
|
1600
|
3,0
|
15
|
20
|
237
|
3,0
|
4,40
|
|
H-35
|
35
|
1400
|
3,5
|
15
|
20
|
215
|
3,0
|
4,40
|
High density Hexaferrites
|
Material grade
|
HAeff
kOe
+5%
|
4pMs
G
+5%
|
DH
(-3dB)
Oe
no more than
|
e'
+5%
|
tgde
.104
no more than
|
Tc
oC
nomin
|
Hc
kOe
nomin
|
r
g/cm3
|
|
HD-6
|
6
|
3400
|
2,5
|
17
|
10
|
450
|
0,05
|
4,90
|
|
HD-11
|
11
|
3700
|
2,5
|
17
|
10
|
507
|
0,1
|
4,90
|
|
HD-16
|
16
|
3300
|
2,0
|
17
|
10
|
465
|
1,5
|
4,90
|
|
HD-17
|
17
|
4300
|
2,0
|
20
|
8
|
470
|
0,6
|
5,20
|
|
HD-19
|
19
|
3500
|
2,0
|
17
|
6
|
400
|
2,5
|
4,90
|
|
HD-20
|
20
|
2400
|
2,0
|
17
|
10
|
400
|
0,6
|
4,90
|
|
HD-22
|
22
|
3000
|
1,5
|
18
|
8
|
340
|
3,0
|
4,95
|
|
HD-28
|
28
|
2100
|
1,5
|
17
|
10
|
270
|
3,0
|
4,95
|
|
HD-30
|
30
|
2000
|
1,5
|
17
|
10
|
260
|
3,0
|
4,95
|
|
HD-32
|
32
|
1800
|
1,5
|
17
|
10
|
250
|
3,0
|
4,95
|
|
HD-33
|
33
|
1700
|
1,5
|
17
|
10
|
240
|
3,0
|
4,95
|
Microwave Ceramics
The series of MT (Mg, Ti) and MTS (Mg, Ti, Si) ceramic dielectrics
were developed for use as matching medias in microwave application.
Materials with any dielectric permeability values other than listed
below are available on request within stated
e’ ranges.
BT (Ba, Ti) and ZST (Zr, Sn, Ti) series feature high dielectric
constant, high density, and low loss values. They are well suited for
high Q dielectric resonators.
The fine surface finished parts of these materials are available and
recommended as substrates for microwave integrated circuits (MIC)
application.
|
Material grade
|
Dielectric
constant
e'
(9.4 GHz)
|
Dielectric loss
tangent
tgde
.104
(9.4 GHz)
no more than
|
Coefficient of dielectric
constant
1/ oC.106
|
Coefficient of thermal expansion
1/ oC.106
|
Balk
density
g/cm3
|
Water
absorbtion
%
|
|
C-4
|
4.5± 5%
|
2
|
+ 55
|
2
|
2.30
|
|
|
F-6
|
6.5± 5%
|
2
|
+100
|
10
|
2.90
|
0.0
|
|
MT-7
|
7.5± 3%
|
3
|
+100
|
6
|
3.10
|
0.0
|
|
MT-9
|
9.5± 3%
|
2
|
+100
|
9
|
3.30
|
0.0
|
|
MT-10
|
10.5± 3%
|
2
|
+100
|
6
|
3.35
|
0.0
|
|
MT-13
|
13.0± 3%
|
2
|
+130
|
9
|
3.50
|
0.0
|
|
MT-16
|
16.0± 3%
|
2
|
+100
|
8
|
3.60
|
0.0
|
|
MTS-20
|
20± 5%
|
5
|
|
7
|
3.65
|
<
0.1
|
|
MTS-30
|
30± 5%
|
5
|
|
8
|
3.75
|
<
0.1
|
|
MTS-40
|
40± 5%
|
6
|
|
9
|
3.80
|
<
0.1
|
|
MTS-50
|
50± 5%
|
6
|
|
9.5
|
3.90
|
<
0.1
|
|
MTS-80
|
80± 5%
|
6
|
|
10
|
3.90
|
<
0.1
|
|
MTS-100
|
100± 5%
|
6
|
|
10
|
3.95
|
<
0.1
|
|
MTS-140
|
140± 10%
|
6
|
|
10
|
4.0
|
<
0.1
|
|
BT-36
|
36± 3%
|
2
|
|
10
|
4.55
|
<
0.1
|
|
ZST-38
|
38± 3%
|
2
|
|
7
|
4.95
|
<
0.1
|
|
|
