RF isolators and circulators covers a wide frequency range from 0.1GHz to 40GHz. It uses
ferrite material and microstrip / waveguide / coaxial structure
designs. It offers low insertion loss (as low as 0.2dB), high
isolation (up to 23dB), and excellent VSWR (as low as 1.15).The
products offer high power handling capability (average power up to
2000W, peak power up to 10000W). They are compatible with multiple
RF connector interfaces, including SMA, N, L29, and 2.92mm.They are
widely used in wireless communication base stations, radar systems,
test and measurement equipment, satellite communication and 5G
communication.
Features
- Frequency range – 0.1-40GHz
- Insertion loss – as low as 0.2dB
- Isolation – up to 23dB
- VSWR – as low as 1.15
- High power handling – up to 2000W
- Multiple connector options – SMA/N/L29/2.92mm
- Wide operating temperature – -55°C to +85°C
- Multiple structure types – microstrip, waveguide, coaxial
Product Specification Selection Table
| Series | Frequency Range (GHz) | Bandwidth | Insertion Loss (dB) | Isolation (dB) | VSWR | Power (W) | Connector Type |
|---|
| MTG0101F | 0.1-0.34 | 10-200MHz | 0.3-0.4 | 20-23 | 1.20-1.25 | 60-400 | SMA/N |
| MTG0301A | 0.2-1.4 | 10-1000MHz | 0.3-0.5 | 18-23 | 1.20-1.30 | 100-200 | SMA/N |
| MTG0401B | 0.25-0.62 | 10-200MHz | 0.3-0.4 | 20-25 | 1.15-1.25 | 150-200 | SMA/N |
| MTG0701B2 | 0.5-2.7 | Full band | 0.3-0.5 | 16-20 | 1.20-1.40 | 100-300 | SMA/N |
| MTG101B | 0.8-3.8 | 70-400MHz | 0.3-0.5 | 18-25 | 1.20-1.30 | 100-200 | SMA/N |
| MTG201F | 1.8-3.5 | 200-400MHz | 0.3-0.4 | 20-23 | 1.20-1.30 | 30-60 | SMA |
| MTG401 | 3.3-8.0 | 200-1000MHz | 0.2-0.4 | 23-25 | 1.20 | 20-50 | SMA |
| MTG501S | 3.5-8.0 | 200-1000MHz | 0.5 | 20 | 1.20 | 20-40 | SMA |
| MTG801F | 5.6-22 | Full band | 0.4-0.6 | 18-20 | 1.25-1.30 | 10-20 | SMA/2.92mm |
| MTG2030A | 18-36 | 4000MHz | 0.6 | 18 | 1.30 | 10-20 | 2.92mm |
Applications
- Wireless communication base stations
- Radar systems
- Test and measurement equipment
- Satellite communication
- 5G communication systems
- Microwave components
- RF front-end modules
FAQ
Q: What is the difference between an isolator and a circulator?
A: An isolator is a three-port device with one port terminated with a
matched load. Signal can only travel in one direction. It is used
to protect the signal source from reflected power damage. A
circulator is a three-port device where signal travels sequentially
in a clockwise or counterclockwise direction (1→2→3→1). It can be
used for applications such as shared transmit/receive antennas.
Both devices work based on the non-reciprocal characteristics of
ferrite material.
Q: How to select the frequency range for isolators/circulators?
A: Selection should be based on the system operating frequency. The
product series covers 0.1-40GHz, available in both narrowband
(bandwidth 10-200MHz) and broadband/full-band types. Narrowband
models offer lower insertion loss and higher isolation. Broadband
models cover a wider frequency range with more flexible selection.
We recommend selecting based on the actual operating frequency band
and bandwidth requirements of your system.
Q: What is the impact of insertion loss and isolation on the
system?
A: Insertion loss refers to the power loss when signal passes
through the device. Lower is better (typical values 0.2-0.6dB). It
directly affects system gain and power consumption. Isolation
refers to the attenuation of reverse signals. Higher is better
(typical values 18-23dB). It directly affects the protection level
of the signal source and the effectiveness of transmit/receive
isolation.
Q: How much power can high-power isolators/circulators handle?
A: This series offers high-power models with average power up to
2000W and peak power up to 10000W (under pulse conditions). The
specific power handling capability depends on frequency, bandwidth,
connector type, and heat dissipation conditions. High-power models
typically use N-type or L29 connectors and are equipped with
heatsinks.
