SPK ELECTRONICS CO., LTD.Taiwan

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All Products (361)

Product Category

Products

Description :

Part Number

Center Frequency (MHz)

Bandwidth (MHz) min.

Insertion Loss (dB) max

Ripple(dB) max

VSWR max

Rejextion Band (dB) min.(MHz)

Power (W) max

Size W*H*L(mm)

DFB2549P106A

2549

106

2

1

1.5

30@2700-5500

30

55X28X5.0

DFB2615P050A

2615

50

1.5

0.5

1.5

20@f0±60

30

50X30X6.0

DFB5000P100A

5000

100

2.5

1.0

1.5

40@f0±300

30

14.2X6.8X3.4

DFB5780P100A

5780

100

3.0

1.0

1.5

45@f0±280

30

20X8.0X3.8

DFB10200P030A

10200

30

3.5

1.0

1.5

25@f0±150

30

17X8.0X4.2

DFB19000P200A

19000

200

3.5

1.0

1.5

45@f0±500

30

17X8.0X5.3

DFB25000P350A

25000

350

3.5

1.0

1.5

30@f0±500

30

10X5.0X3.5


Features :
Filters are the core components of Base Station’s Radio Frequency System. The working principle is to pass specific frequencies in the transmitting and receiving bands, and to attenuate other frequencies. The metal cavity filters are widely used in the 3G and 4G applications, but they will be replaced by dielectric filters(the main products of SPK) in the 5G applications.

The filters used in base station include the metal cavity filters and dielectric filters. Compared with the 4G market dominated by metal cavity filters, 5G filters are expected to adopt new technologies and will be able to achieve miniaturized compact size. Here are some advantages of dielectric filters:

--Miniaturized compact size(more suitable to 5G MIMO technology)
--Low insertion loss, high attenuation (great frequency selection)
--Low power consumption
--High temperature stability
--Competitive advantages

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