Often, high power amplifiers over 50W are typically fabricated using discrete components. Including the subwoofer active speakers recently produced by world famous companies such as Japan's YAMAHA and SONY, they also use discrete components to design circuits. It is undeniable that power amplifiers made with discrete components can achieve relatively high performance indicators, but The difficulty of making a production is also relatively large, and most of the ordinary hobbies are difficult to complete. To this end, the power amplifier is a set of power amplifier performance indicators made by a successful IC and a linear operational amplifier IC, and has a perfect protection function, which is very suitable for audio hobby.
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Circuit principle:
Flat Microwave Absorb Material
JA-WW walkway absorber multi-layer semi-hardening lather plastic plate, possessing certain
compressive strength. Its skin is wrapped up in cloth covers. It is used for
walkway material of anechoic chambers.
It can also work as an absorption screen or a radar chamber to test EMC.
Model Number
Height
Weight
Lowest service frequency (GHz)
Maximum Reflectivity at normal incidence
(-dB)
JA-WW-13
13
1
10
17
JA-WW-25
26
1.6
5
17
JA-WW-50
50
3
2.5
17
JA-WW-100
100
6
1.3
17
JA-WW-200
200
11
0.6
17
JA-WW-300
300
16.5
0.45
17
JA-WW-400
400
24
0.35
17
(mm)
( kg/m)
JAT flat laminate absorber: light blue thin-layer soft plastic sheet. It can be bent, mainly applied in aerial feed inner which is strict in thickness and weight.
Model Number
Height
Weight( kg/m2)
Lowest service frequency(GHz)
Maximum Reflectivity at normal incidence
(-dB)
JAT-8
8
1.6
5.5
>15
JAT-5
5
1
9.4
>15
JAT-3
3
0.6
15
>15
(mm)
JAL flat laminate absorber: multi-layer soft plastic plate which can be bent, mainly used for the radar chamber aerial system inside . turret testing frame, etc. It can eliminate reflection interference.
|
Model Number |
Height |
Weight |
service frequency |
Maximum Reflectivity at normal incidence (-dB) |
|
JAL-9 |
9 |
1.2 |
14 ~ 40 |
17 ~ 25 |
|
JAL-13 |
13 |
1.5 |
10 ~ 40 |
17 ~ 25 |
|
JAL-20 |
20 |
2.1 |
6 ~ 40 |
17 ~ 25 |
|
JAL-25 |
25 |
2.5 |
5 ~ 40 |
17 ~ 25 |
|
JAL-30 |
30 |
3.1 |
4 ~ 40 |
17 ~ 25 |
|
JAL-45 |
45 |
4.6 |
2.7 ~ 40 |
17 ~ 25 |
|
JAL-70 |
70 |
7.2 |
1.7 ~ 40 |
17 ~ 25 |
|
JAL-100 |
100 |
10.3 |
1.2 ~ 40 |
17 ~ 25 |
We could make the absorber as customer requirement ,please contact us for details.
Flat Microwave Absorb Material
Flat Microwave Absorb Material,Flat Microwave Absorb Foam Material,Multi Layer Microwave Absorb Foam,Single Layer Microwave Absorb Foam
JINAN EMI SHIELDING TECHNOLOGY CO., LTD. , http://www.emirfi.com