| Image | Part Number | Description / PDF | Quantity | Rfq |
|---|---|---|---|---|
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DiTom Microwave Inc. |
5.70 - 7.10 GHZ ISOLATOR |
0 |
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DiTom Microwave Inc. |
20.00 - 21.50 GHZ CIRCULATOR |
0 |
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DiTom Microwave Inc. |
0.50 - 0.70 GHZ ISOLATOR |
0 |
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DiTom Microwave Inc. |
1.70 - 2.00 GHZ CIRCULATOR |
0 |
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DiTom Microwave Inc. |
7.50 - 10.00 GHZ CIRCULATOR |
0 |
|
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DiTom Microwave Inc. |
8.00 - 20.00 GHZ CIRCULATOR |
0 |
|
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DiTom Microwave Inc. |
0.60 - 0.70 GHZ ISOLATOR |
0 |
|
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DiTom Microwave Inc. |
7.50 - 10.00 GHZ ISOLATOR |
0 |
|
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DiTom Microwave Inc. |
17.00 - 20.00 GHZ CIRCULATOR |
0 |
|
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DiTom Microwave Inc. |
0.80 - 1.00 GHZ CIRCULATOR |
0 |
|
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DiTom Microwave Inc. |
1.70 - 2.70 GHZ CIRCULATOR |
0 |
|
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DiTom Microwave Inc. |
9.20 - 10.50 GHZ ISOLATOR |
0 |
|
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DiTom Microwave Inc. |
0.80 - 2.00 GHZ ISOLATOR |
0 |
|
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DiTom Microwave Inc. |
1.00 - 2.00 GHZ CIRCULATOR |
0 |
|
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DiTom Microwave Inc. |
8.50 - 9.60 GHZ ISOLATOR |
0 |
|
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DiTom Microwave Inc. |
8.00 - 12.40 GHZ ISOLATOR |
0 |
|
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DiTom Microwave Inc. |
26.50 - 40.00 GHZ CIRCULATOR |
0 |
|
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DiTom Microwave Inc. |
0.60 - 0.70 GHZ ISOLATOR |
0 |
|
 |
DiTom Microwave Inc. |
1.70 - 2.00 GHZ CIRCULATOR |
0 |
|
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DiTom Microwave Inc. |
20.00 - 40.00 GHZ CIRCULATOR |
0 |
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RF Circulators and Isolators are passive microwave components that manage signal flow in radio frequency (RF) and intermediate frequency (IF) systems. Circulators direct RF energy between multiple ports in a sequential manner, while isolators allow unidirectional signal transmission by absorbing reflected energy. These devices are critical for protecting transmitters from back-reflected power, enabling signal separation in duplex systems, and ensuring stable performance in RFID and wireless infrastructure.
| Type | Functional Characteristics | Application Examples |
|---|---|---|
| 3-Port Circulator | Non-reciprocal signal routing (e.g., Port 1 2 3 1) | 5G base stations, radar systems |
| 4-Port Circulator | Signal isolation between transmit/receive paths | Satellite communication terminals |
| Reflection Isolator | Reflects reverse signals back to source | Low-noise amplifier protection |
| Absorptive Isolator | Converts reflected energy to heat | High-power transmitter systems |
Typical devices consist of: - Ferrite materials biased by permanent magnets (for non-reciprocal behavior) - Coaxial or waveguide ports with precision impedance matching - Thermal management layers for high-power models - Hermetic packaging in military/industrial grades The design follows Faraday rotation principles to control electromagnetic wave propagation direction.
| Parameter | Typical Range | Importance |
|---|---|---|
| Frequency Range | 0.5-40 GHz | Defines operational bandwidth |
| Insertion Loss | 0.2-1.5 dB | Impacts signal strength |
| Isolation | 15-30 dB | Measures reverse signal suppression |
| Power Handling | 5-500 W | Determines system reliability |
| VSWR | 1.1-1.5:1 | Indicates impedance matching quality |
| Manufacturer | Representative Product | Key Specifications |
|---|---|---|
| Analog Devices | ADRF45201 | 28 GHz, 0.8 dB insertion loss, 20 dB isolation |
| TE Connectivity | CSC-30-0308 | 30 W, 2.5 GHz, 25 dB isolation |
| STMicroelectronics | RF4C011 | 10 GHz, 0.5 dB loss, 15 dB isolation |
Key considerations include: - Frequency band alignment with system requirements - Power handling capacity (1.5 rated power recommended) - Environmental factors (temperature, vibration) - Interface type (SMA, N-type, or surface-mount) - Example: For 5G massive MIMO systems, select circulators with <0.5 dB loss and >25 dB isolation at 3.5 GHz.
Emerging trends include: - Development for mmWave (28/39 GHz) 5G applications - Integration with GaN power amplifiers - Miniaturization for IoT/RFID wearable devices - Advanced thermal management materials - AI-driven design optimization for broadband performance