Articles
Isolators And Circulators
September 28, 2006
Corry Micronics offers a full range of isolators and circulators. A circulator is a ferrite device and usually has three ports. The signal path either circulates in a clockwise or counter clockwise direction. Circulators are used to duplex two signals. Often circulators are used to combine the transmit and receive signal which are connected to an antenna.
Isolators are essentially the same design as a circulator except that one of the ports is terminated resulting in only one output. Isolators are installed so that they "Isolate" the output. This isolation prevents damaging standing waves from getting back to the transmitter's output stage which would result in a transmitter circuit's failure.
At Corry Micronics we offer the following styles/types:
Connectorized Isolators
300Mhz to 16Ghz
N or SMA Connector
Forward power of 10, 50 or 100 watts
Drop-in Isolators
300Mhz to 18Ghz
Forward power of 10, 50 or 100 watts
Lumped Element Isolators
50Mhz to 16Ghz
Forward power of 10 to 1,200 watts
Waveguide Isolators and Circulators
Average power ratings to 2,000 watts
2.6Ghz to 16Ghz
Connectorized Circulators
300Mhz to 18Ghz
N or SMA connector
Forward power of 10, 50 or 100 watts
Drop-in Circulators
300Mhz to 18Ghz
Forward power of 10, 50 or 100 watts
Lumped Element Circulators To
view PDF of all Isolators and Circulators Click Here. Part
Number Frequency
Range (GHz) Bandwidth
(MHz) Isolation
(dB Min.) VSWR
(Max.) Insertion
Loss Operating
Temperature (°C) OUTLINE Isolators CMIH101 0.3-0.8 50 23 1.2:1 0.4 -40
to +70 1 100 20 1.25:1 0.5 -40
to +70 1 CMIH201 0.75-1.4 50 25 1.15:1 0.3 -40
to +70 2 100 23 1.20:1 0.4 -40
to +70 2 250 20 1.25:1 0.5 -40
to +70 2 CMIH201B 0.75-1.7 50 25 1.15:1 0.3 -40
to +70 3 100 23 1.20:1 0.4 -40
to +70 3 250 20 1.25:1 0.5 -40
to +70 3 CMIG202B 0.75～1.7 50 25 1.15:1 0.3 -40
to +70 16 100 23 1.20:1 0.4 -40
to +70 16 200 20 1.25:1 0.5 -40
to +70 16 0.9～1.225 FULL 20 1.30:1 0.6 -40
to +70 16 CMIG206 0.8-1.7 50 50 1.15:1 0.6 -40
to +70 4 100 45 1.20:1 0.8 -40
to +70 4 200 40 1.25:1 1.0 -40
to +70 4 CMIG301 2-4 200 25 1.15:1 0.3 -40
to +70 5 600 23 1.20:1 0.4 -40
to +70 5 FULL 20 1.25:1 0.5 -40
to +70 5 CMIG305 1.8-4.2 200 25 1.15:1 0.3 -40
to +70 6 400 23 1.20:1 0.4 -40
to +70 6 CMIG308 2.6-3.6 100 50 1.15:1 0.5 -40
to +70 7 200 45 1.20:1 0.6 -40
to +70 7 400 40 1.25:1 0.8 -40
to +70 7 CMIG401 2.5-6.0 400 25 1.15:1 0.3 -40
to +70 8 600 23 1.20:1 0.3 -40
to +70 8 1000 20 1.25:1 0.4 -40
to +70 8 CMIG402 3.0-8.0 400 23 1.15:1 0.3 -40
to +70 9 800 20 1.25:1 0.4 -40
to +70 9 2000 20 1.30:1 0.4 -40
to +70 9 CMIG402 2.0-4.0 FULL 20 1.20:1 0.5 -40
to +70 9 CMIG406 4.0-8.0 300 50 1.25:1 0.6 -40
to +70 10 600 45 1.40:1 0.8 -40
to +70 10 1000 40 1.35:1 1.0 -40
to +70 10 CMIG501 8.0-10.0 200 25 1.15:1 0.3 -40
to +70 11 400 23 1.20:1 0.4 -40
to +70 11 800 20 1.25:1 0.5 -40
to +70 11 CMIA505 7.0-10.0 300 50 1.15:1 0.6 -40
to +70 12 600 45 1.25:1 0.7 -40
to +70 12 1000 40 1.22:1 0.8 -40
to +70 12 CMIG601 8.0-12.0 300 25 1.15:1 0.3 -40
to +70 13 600 23 1.20:1 0.4 -40
to +70 13 FULL 20 1.35:1 0.5 -40
to +70 13 12.0-18.0 400 25 1.20:1 0.3 -40
to +70 13 600 23 1.25:1 0.4 -40
to +70 13 FULL 20 1.40:1 0.6 -40
to +70 13 8.0-18.0 FULL 16 1.50:1 1.0 -54
to +85 13 CMIG601B 9.0-16.0 300 25 1.15:1 0.3 -54
to +85 14 600 23 1.20:1 0.4 -54
to +85 14 CMIG603 8.5-16.0 500 50 1.15:1 0.5 -54
to +85 15 1000 45 1.20:1 0.7 -54
to +85 15 2000 40 1.25:1 1.0 -54
to +85 15 CMIG204 0.75-1.7 50 25 1.15:1 0.3 -40
to +70 1 100 23 1.20:1 0.4 -40
to +70 1 250 20 1.25:1 0.5 -40
to +70 1 CMIG210 0.75-1.7 50 25 1.15:1 0.3 -40
to +70 2 100 23 1.20:1 0.4 -40
to +70 2 250 20 1.25:1 0.5 -40
to +70 2 CMIG214 0.8-2.2 50 23 1.15:1 0.3 -40
to +70 3 100 20 1.20:1 0.4 -40
to +70 3 0.925-0.96 FULL 23 1.15:1 0.3 -40
to +70 3 0.96-1.225 FULL 20 1.20:1 0.4 -40
to +70 3 1.805-1.88 FULL 23 1.20:1 0.4 -40
to +70 3 CMIG214C 0.925-0.96 FULL 25 1.25:1 0.4 -10-+60 4 1.805-1.88 FULL 25 1.25:1 0.4 -10-+60 4 1.93-1.99 FULL 25 1.25:1 0.4 -10-+60 4 CMIG304 1.8-2.4 50 25 1.15:1 0.3 -40
to +70 3 100 23 1.20:1 0.4 -40
to +70 3 200 20 1.25:1 0.5 -40
to +70 3 CMIG306 1.8-4.2 200 25 1.20:1 0.3 -40
to +70 4 400 23 1.25:1 0.4 -40
to +70 4 CMIG311A 2.5-3.5 300 20 1.20:1 0.4 -40
to +70 5 CMIG312 2.2-3.5 100 25 1.15:1 0.3 -25
to +70 6 200 23 1.20:1 0.4 -25
to +70 6 300 20 1.25:1 0.4 -25
to +70 6 CMIG404 3.7-6.5 300 25 1.15:1 0.25 -40
to +85 7 600 23 1.22:1 0.5 -40
to +85 7 CMIG405 4.0-8.0 300 50 1.15:1 0.6 -40
to +85 8 600 45 1.20:1 0.3 -40
to +85 8 CMIG504 6.0-9.0 300 23 1.20:1 0.3 -40
to +70 9 600 20 1.25:1 0.4 -40
to +70 9 CMIA602 7.0-10.0 300 25 1.15:1 0.3 -40
to +70 10 600 23 1.20:1 0.4 -40
to +70 10 CMIH101 0.3-0.8 50 23 1.2:1 0.4 -40
to +70 1 100 20 1.25:1 0.5 -40
to +70 1 CMIH201 0.75-1.4 50 25 1.15:1 0.3 -40
to +70 2 100 23 1.20:1 0.4 -40
to +70 2 250 20 1.25:1 0.5 -40
to +70 2 CMIH202 0.8-1.7 50 23 1.15:1 0.3 -40
to +70 3 100 20 1.20:1 0.4 -40
to +70 3 200 18 1.25:1 0.5 -40
to +70 3 CMIH301 2-4 200 25 1.15:1 0.3 -40
to +70 4 600 23 1.20:1 0.4 -40
to +70 4 FULL 18 1.30:1 0.5 -40
to +70 4 CMI5H313 1.8-3.6 300 50 1.15:1 0.5 -25
to +70 6 600 45 1.20:1 0.7 -25
to +70 6 1000 40 1.25:1 0.8 -25
to +70 6 CMIH402 3.0-8.0 100 23 1.15:1 0.3 -40
to +85 7 800 20 1.25:1 0.4 -40
to +85 7 2000 20 1.30:1 0.4 -40
to +85 7 4.0-8.0 FULL 20 1.35:1 0.5 -40
to +85 7 CMIH407 4.0-8.0 300 50 1.15:1 0.6 -40
to +85 8 600 45 1.20:1 0.8 -40
to +85 8 2000 40 1.25:1 0.8 -40
to +85 8 CMIH501 8.0-10.0 200 25 1.15:1 0.3 -40
to +85 9 400 23 1.20:1 0.4 -40
to +85 9 800 20 1.25:1 0.5 -40
to +85 9 CMIH601 8.0-12.0 300 25 1.15:1 0.3 -40
to +85 10 600 23 1.20:1 0.4 -40
to +85 10 FULL 16 1.40:1 0.5 -40
to +85 10 12.0-18.0 400 23 1.15:1 0.3 -40
to +85 10 600 20 1.20:1 0.4 -40
to +85 10 FULL 16 1.40:1 0.5 -40
to +85 10 8.0-18.0 FULL 16 1.50:1 1.0 -40
to +85 10 CMIH305 1.8-4.2 100 23 1.15:1 0.3 -40
to +70 5 200 20 1.20:1 0.4 -40
to +70 5 400 18 1.25:1 0.5 -40
to +70 5 CMIH203 0.8-1.7 50 23 1.15:1 0.3 -40
to +85 1 100 20 1.20:1 0.4 -40
to +85 1 200 18 1.25:1 0.5 -40
to +85 1 CMIH214 0.8-2.2 50 23 1.15:1 0.3 -40
to +70 2 100 20 1.20:1 0.4 -40
to +70 2 0.925-0.965 FULL 23 1.15:1 0.3 -40
to +70 2 1.8-2.4 FULL 20 1.20:1 0.4 -40
to +70 2 1.805-1.88 FULL 23 1.20:1 0.3 -40
to +70 2 TCMIH214CCMIG311A 0.925-0.96 FULL 25 1.20:1 0.4 -10-+60 3 FULL 25 1.20:1 0.4 -10-+60 3 FULL 25 1.20:1 0.4 -10-+60 3 CMIH306 1.8-4.2 100 23 1.15:1 0.3 -25
to +70 5 200 20 1.20:1 0.4 -25
to +70 5 CMIH404 4.0-7.0 300 23 1.15:1 0.25 -40
to +85 6 500 20 1.22:1 0.3 -40
to +85 6 CMIG404 7.0-10.0 300 23 1.20:1 0.3 -40
to +85 7 600 20 1.25:1 0.4 -40
to +85 7 Part
Number Frequency
Range
(GHz) Bandwidth
(%) Insertion
Loss (dB) Isolation
(dB) VSWR Power
(W) Package CMIGL101 0.05～0.1 5～15 0.8 18 1.3 10 FIG.5 CMIGL102 0.1～0.9 20 0.6 20 1.25 30 FIG.6 CMIGL103 0.12～0.2 5～15 0.5 20 1.25 1200 FIG.2 CMIGL104 0.15～0.9 5 0.4 22 1.20 50 FIG.1 CMIGL105 0.15～0.9 10～20 0.6 20 1.25 10 FIG.1 CMIGL106 0.2～1.0 30～50 1.0 18 1.35 10 FIG.4 CMIGL107 0.2～0.4 5～15 0.5 20 1.25 1200 FIG.2 CMIGL108 0.36～0.7 15～20 0.6 20 1.3 300 FIG.3 CMIGL109 0.4～0.9 5～15 0.5 20 1.25 1200 FIG.2 CMIHL101 0.05～0.1 5～15 0.8 18 1.3 10 FIG.5 CMIHL102 0.1～0.9 20 0.6 20 1.25 30 FIG.6 CMIHL103 0.12～0.2 5～15 0.5 20 1.25 1200 FIG.2 CMIHL104 0.15～0.9 5 0.4 22 1.20 50 FIG.1 CMIHL105 0.15～0.9 10～20 0.6 20 1.25 10 FIG.1 CMIHL106 0.2～1.0 30～50 1.0 18 1.35 10 FIG.4 CMIHL107 0.2～0.4 5～15 0.5 20 1.25 1200 FIG.2 CMIHL108 0.36～0.7 15～20 0.6 20 1.3 300 FIG.3 CMIHL109 0.4～0.9 5～15 0.5 20 1.25 1200 FIG.2 Part
Number Freq.
(GHz) BW
(MHz) Ins.
Loss (dB) Isolation
(dB) VSWR Temp
(°C) Avg.
Power (W) Peak
Power (W) Wave
Guide Type Length
(mm) CMIGS-1A 2.7-3.2 140 0.8 20 1.15 -40-+55 800 800 WR284 250 CMIGS-2 2.988-3.008 full 0.5 20 1.10 -10-+55 2000 2000 WR284 250 CMIGS-4A 2.7-3.2 100 1 20 1.20 -40-+70 2000 2000 WR284 310 CMIGX-12A 7.75-9.5 500 0.5 20 1.15 -55-+70 250 250 WR112 90 CMIGX-13 9.0-9.8 full 0.7 20 1.15 -55-+70 250 250 WR112 90 CMIGX-5 8.6-9.6 full 0.7 20 1.20 -55-+55 150 150 WR90 65 CMIGX-5A 8.5-10.5 300 0.5 20 1.15 -55-+55 150 150 WR90 65 CMIGX-5B 8.5-10.5 500 0.6 20 1.20 -55-+55 150 150 WR90 65 CMIGK-2 14.5-15.5 full 0.6 20 1.15 -55-+70 80 80 WR62 55 CMIGK-2A 12.8-17.5 800 0.8 20 1.15 -55-+70 80 80 WR62 55 CMIGK-4 14.5-16.5 full 0.6 20 1.15 -55-+70 120 120 WR62 55 CMIGK-4A 12.8-16.5 800 0.6 20 1.15 -55-+70 120 120 WR62 55 CMIGC-12 3.4-4.3 200 0.3 30 1.05 0-+45 130 CMIGX-8A 7.5-9 300 0.6 20 1.25 -25-+55 WR112 20 CMIGX-21 7.7-8.3 300 0.3 30 1.05 0-+45 WR112 100 CMIGX-1Az 8.5-10.5 400 0.6 20 1.30 -25-+55 WR90 15 CMIGX-1B 8.5-10.3 600 0.6 20 1.35 -25-+55 WR90 15 CMIGX-2A 8.5-9.6 full 0.6
6 15 1.15 +10-+60 WR90 35. CMIGX-2 8.6-9.6 full 0.5 20 1.15 -10-+55 WR90 60 CMIGX-15 9-9.5 full 0.6 20 1.25 -25-+55 WR90 30 CMIGK-1A 13.5-16.5 1000 0.7 20 1.15 -10-+55 WR62 80 CMIGK-5A 14.5-16.5 400 0.6 20 1.25 -10-+55 WR62 12 CMIHS-11 2.6-3.5 300 0.2 30 1.06
0-+45 WR284 110x120 CMIHC-12 3.4-4.2 200 0.2 30 1.06 0-+45 58x10 110x120 CMIHC-13 3.9-5.8 200 0.2 30 1.06 0-+45 WR187 110x120 CMIHC-21 5.9-6.4 full 0.2 28 1.06 0-+45 WR137 98x98.6 CMIHC-22 6.4-7.1 full 0.2 28 1.06 0-+45 WR137 100x103.6 CMIHC-23 7.1-7.7 full 0.2 28 1.06 0-+45 WR137 120x94 CMIHX-17 7.1-8.75 300 0.2 28 1.08 0-+45 WR112 60x60 CMIHX-16 7.1-8.75 600 0.25 28 1.08 0-+45 WR112 82x87 CMIHX-10 8.2-9.0 300 0.2 28 1.05 0-+45 WR90 48x53 CMIHX-15 10.7-11.7 full 0.25 28 1.08 -10-+45 WR90 60x60 CMIHK-3A 13.5-17.5 500 0.5 20 1.25 -25-+55 WR62 42x42 CMIH-31 2.6-3.5 10% 0.25 20 1.25 0-+45 2000 2000 WR284 110x120 CMIH-32 3.4-4.2 10% 0.25 20 1.25 0-+45 500 500 WR187 110x110 CMIH-33 3.9-5.8 10% 0.25 20 1.25 0-+45 500 500 WR187 110x110 CMIH-34 5.8-6.4 10% 0.25 20 1.25 0-+45 500 500 WR159 100x100 CMIH-35 6.4-7.1 10% 0.25 20 1.25 0-+45 500 500 WR159 100x100 CMIH-36 7.1-7.7 10% 0.25 20 1.25 0-+45 500 500 WR137 100x100 CMIH-37 7.7-8.8 10% 0.25 20 1.25 0-+45 300 300 WR112 90x90 CMIH-38 8.6-10 10% 0.25 20 1.25 0-+45 250 250 WR90 80x980 CMIH-39 10-12 10% 0.25 20 1.25 0-+45 200 200 WR90 80x80 CMIH-40 12-14 10% 0.25 20 1.25 0-+45 100 100 WR62 60x60 CMIH-41 13.8-17.5 10% 0.25 20 1.25 0-+45 80 80 WR62 60x60 Part
Number Freq.
(GHz) BW
(MHz) Insertion
Loss VSWR
1à2 Temp
(°C) Avg.
Power (W) Peak
Power (MW) Wave
Guide Type Length
(mm) (dB) 1à2 2à3 2à1 1à3 CMIP331 2.6-3.4 10% 0.4 0.4 20 20 1.2 -10-+50 2600 2.6 WR284 700 CMIP332 2.6-3.4 10% 0.5 0.5 20 20 1.2 -10-+50 5000 5 WR284 700 CMIP333 2.6-3.4 10% 0.5 0.5 20 20 1.2 -10-+50 1000 10 WR284 700 CMIP334 2.6-3.4 10% 0.5 0.5 20 20 1.2 -10-+50 10000 1 WR284 700 CMIP351 4.8-5.8 10% 0.5 0.5 20 20 1.2 -10-+50 2000 1 WR187 500 CMIP381 8.2-12 10% 0.5 0.5 20 20 1.2 -25-+60 300 0.3 WR90 300 CMIP382 8.2-12 10% 0.5 0.5 20 20 1.2 -25-+60 1000 1.3 WR112 300 CMIP311 12.4-18 5% 0.5 0.5 20 20 1.2 -25-+60 120 0.07 WR62 200 CMIP312 14.5-15.5 16% 0.5 0.5 20 20 1.2 -25-+60 30 0.1 WR62 200
50Mhz to 16Ghz
Forward power of 10 to 1,200 watts
(dB Max.)
