The MMIC amplifier is known as Monolithic microwave integrated circuits. This Amplifier Chips are specially designed for integrate active and passive components like transistors, capacitors and resistors on a single chip.
This chip operates at high frequency ranges of 300 MHz to 300 GHz.
This chip provides additional benefits like high gain, low noise and less signal loss compared with any other amplifier circuits. This compact packaging is used in radar system, communication and also in satellite systems.
Many common antennas use 50ohms characteristics impedance for working so, this chip is well optimized for 50ohms. In air-filled coaxial cables, the highest power handling occurs at 30 ohms, while the lowest signal loss (attenuation) occurs at 77 ohms. 50 ohms sits in the middle as a “sweet spot” that balances both.
Materials Used IN MMIC Amplifiers
These MMIC amplifiers are fabricated in semiconductor materials of gallium arsenide and gallium nitride using the process of HBT or pHEMT process.
Features
- Wideband & High Gain
- Low Noise Amplifier (LNA) which is critical for receiving weak signals with minimal loss and interference.
- These amplifiers can able to produce high power e.g of +39 dBm range.
- 50-Ohm Matching is simplifies the design by eliminating the need for external antenna impedance matching components.
Applications
- Wireless communications
- WIFI, LAN connection
- Radar
