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SMI 70/...

450 MHz Ceramic Microplexer

  • Extremely small and lightweight ceramic duplexer (Extremely small: only 12 cm 3 !). Ideal for integration in portable 450 MHz cellular sevices.
  • Low insertion loss by use of high-performance ceramic materials and computer optimized interconnection networks.

DESCRIPTION

  • Rugged mechanical design and low temperature drift.
  • High power handling – handles 30 watts at 85° C when mounted on a 40 cm heatsink!
  • Designed for direct drop-in on microstrip PCB. Coplanar terminals save space and provide ease-of-manufacturing and a non-discontinuity interface to the PCB.
  • Rejection of image frequency of receiver.
  • Environment proof.

 

ORDERING DESIGNATIONS

TYPEPRODUCT NO.
SMI 70/NMTContact us for info on availability
SMI 70/R2000Contact us for info on availability
SMI 70/SFRContact us for info on availability

COMMON SPECIFICATIONS

ELECTRICAL 
MODELSMI 70/...
MAX. INPUT POWER6 W without heatsink
30 W with heatsink
IMPEDANCENom. 50 Ω
MECHANICAL 
TEMP. RANGE–30° C → +85° C
CONNECTIONSDrop-in, coplanar
TOTAL DIMENSIONS (L x W x H)77.5 x 36 x 7.3 mm
HOUSING ONLY (L x W x H)64.5 x 26 x 7.3 mm
WEIGHTApprox. 50 g

 

SPECIFICATION

MODELSMI 70/NMT
CELLULAR SYSTEM 
TX FREQ.453.0 - 457.5 MHz
RX FREQ.463.0 - 467.5 MHz
BRANCHTX → Ant.Ant. → RX
INSERTION LOSS IN PASSBAND≤ 2.8 dB≤ 4.7 dB
ATT. IN STOPBAND> 50 dB> 60 dB
SWR≤ 1.5 dB≤ 1.7 dB
OUT OF BAND REJECTION2.harm.: > 50 dB
3.harm.: > 50 dB
4.harm.: > 40 dB
< 225 MHz: > 10 dB
443 - 453 MHz: > 47 dB
1 - 3.5 GHz: > 50 dB
3.5 - 6 GHz: > 25 dB

 

MODELSMI 70/R2000
CELLULAR SYSTEM 
TX FREQ.414.8 - 418.0 MHz
RX FREQ.424.8 - 428.0 MHz
BRANCHTX → Ant.Ant. → RX
INSERTION LOSS IN PASSBAND≤ 2.4 dB≤ 4.2 dB
ATT. IN STOPBAND> 50 dB> 60 dB
SWR≤ 1.5 dB≤ 1.7 dB
OUT OF BAND REJECTION2.harm.: > 50 dB
3.harm.: > 50 dB
4.harm.: > 40 dB
10 dB
405 - 415 MHz: > 47 dB
1 - 3.5 GHz: > 50 dB
3.5 - 6 GHz: > 25 dB

 

MODELSMI 70/SFR
CELLULAR SYSTEM 
TX FREQ.450.0 - 454.5 MHz
RX FREQ.440.0 - 444.5 MHz
BRANCHTX → Ant.Ant. → RX
INSERTION LOSS IN PASSBAND≤ 2.7 dB≤ 4.6 dB
ATT. IN STOPBAND> 50 dB> 60 dB
SWR≤ 1.5 dB≤ 1.7 dB
OUT OF BAND REJECTION2.harm.: > 50 dB
3.harm.: > 50 dB
4.harm.: > 40 dB
10 dB
455 - 465 MHz: > 47 dB
1 - 3.5 GHz: > 50 dB
3.5 - 6 GHz: > 25 dB

FUNCTIONAL DIMENSIONS

 

TYPICAL RESPONSE CURVES

 

TYPICAL RESPONSE CURVES

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