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Circulators
Circulators are key elements in modern V.H.F., U.H.F. and microwave engineering. Their fundamental property of non-reciprocity is capable of simplifying the construction and improving the stability, efficiency and accuracy of radar, communication and testing systems, and industrial heating applications.

The devices contain a core of ferrite material biased by a static magnetic field. This field orients the electron spins within the ferrite to produce a gyromagnetic effect. The non-reciprocal behaviour occurs when a R.F. signal, applied perpendicular to the biasing field, interacts with the precessing electrons to set up a standing-wave pattern within the core.

A Circulator is a passive non-reciprocal device with three or more ports. Energy introduced into one port is transferred to an adjacent port, the other ports being isolated. Although circulators can be made with any number of ports, the most commonly used are 3-port and 4-port ones, the symbols for these are given below:



AMPL Isolators are custom built and are designed to give the optimum performance and cost effectiveness & range for High Power & Low Power GSM/PCS & PCN applications. Our Isolators are available in narrow and octave bands in frequency range of 100 MHz to 18 GHz. The isolators are compact and rugged in construction and light in weight, with the connector type being decided by the customer. The primary advantage of our Isolators is that they can handle high levels of power and are insensitive to appreciable short duration over loads.

Salient Features:
  • Low Insertion Loss
  • High Isolation
  • High Return Loss / Low V.S.W.R.
  • Reliable, compact and rugged design
  • Wide bandwidth
  • Excellent temperature stability
  • Low/Medium/High/various power applications
  • DC monitoring facility as option
  • Variety of connector (Customer Choice)
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    SPECIFICATIONS

    Part No.

    Model No.

    Frequency (MHz)

    Isolation (dB)

    Insertion Loss (dB)

    V.S.W.R. / Return Loss

    CT781011

    CU15-1

    406 - 512

    30

    0.4

    1.2 : 1

    CT192011

    CL15

    1700 - 2000

    20

    0.35

     

    CT212011

    C241

    2000 - 2300

    25

    0.25

    1.1 : 1

    CT252011

    CS23

    2400 - 2700

    20

    0.25

    20dB

    CT902011

    CX031

    9500 - 10500

    20

    0.35

    1.25 : 1

    CT103LD1

    CX03-01

    10100 - 10500

    20

    0.5

    1.25 : 1

    CT212011

    C242

    2000 - 2300

    20

    0.3

    1.2 : 1

    CT161CR2

    CV04-2D

    136 - 174 (2MHz BW)

    60

    1.0

    20dB

    CT351CR1

    Cu08 -2

    330 - 370 (12MHz BW)

    28

    0.4

    1.2 : 1

    CT461CR1

    Cu10 -2

    406 - 512 (12MHz BW)

    30

    0.4

    1.2 : 1

    CT881022

    CU16-2D

    800 - 960 (50MHz BW)

    60

    0.8

    1.2 : 1