LC duplexer integrates two LC filters—typically a transmit filter and a receive filter—into a single module with a common antenna port. It enables simultaneous transmission and reception over a single antenna while providing sufficient isolation between the TX and RX paths. With its compact size and low cost, it is commonly used in wireless communication devices such as handsets, routers, and small base stations.

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Product Classification

LC Duplexers

Product Features:

Low Frequency: 300KHz ~ 3GHz

Wide bandwidth & high rejection

Flexible frequency

Low price & customization

Power range: 1W ~ 20W

share:
application area

PCS , DCS, CDMA, GSM

Wireless LAN

Cable TV

IF filtering

Classical curve

Typical curves of the LD-Series

image

Model

Center Frequency 
(MHz)

Band 

Width
(MHz)

InsertionLoss(dB)

Ripple

in BW

Reflection R/L

Attenuation

Interface Method

Size(W*L*H)

Form

LD100-130C11N00-20PA

100-130

00

3.0

2.0

1.5

45dB@120~140       

45dB@150~250

SMT

35.0*25.0*7.0

Band Pass

20

3.0

2.0

1.5

50dB@DC~100       

50dB@165~250

LD141-440C9N66-144PA

141-440

66

3.0

1.5

1.6

45dB@368~512

SMT

30.0*20.0*8.0

Band Pass

144

3.0

1.5

1.6

45dB@108~174

LD355-690C4-10HA

355-690

4

1.3

0.6

1.5

50dBc@690~930

SMT

58.0*23.5*10.0

Band Pass

10

1.3

0.6

1.5

50dBc@930~1560

LD450-1250-C9HA

450-1250

300

1.0

1.0

1.6

45dB@1000~1500

SMT

47.0*18.0*10.0

Band Pass

500

1.0

1.0

1.6

45dB@300~600

LD829-2105C10R262-790PA

829-2105

262

1.0

0.5

1.5

30dB@1710~2500

SMT

39.6*9.0*5.3

Band Pass

790

1.0

0.5

14

40dB@698~960

LD2200-850C10R1000-300PA

850-2200

1000

1.0

0.5

1.5

50dB@1700~2700

SMT

39.6*9.0*5.3

Band Pass

300

1.0

0.5

1.5

50dB@700~1000

LE54-209C9N48-182PA

54-209

48

1.5

1.5

1.3

30dB@88~108

SMT

20.0*15.0*6.0

Band Stop

182

1.5

1.5

1.3


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