Low Noise Amplifier, Frequency 0.1~18GHz, Gain 30dB, Noise Figure 3dB

Low noise amplifier is an electronic device used to amplify weak signals, widely used in fields such as communication, radar, radio astronomy, etc.

Characteristics:

1. Low noise coefficient
The noise figure is used to describe the degree of degradation of input signal noise by an amplifier, and it is an indicator to measure the noise performance of an amplifier. Low noise coefficient means that the amplifier introduces very little noise while amplifying the signal, which can better preserve the original information of the signal and improve the signal-to-noise ratio of the system.
2. High gain
High gain can amplify weak input signals to a sufficient amplitude for subsequent circuit processing. For example, in satellite communication, satellite signals are already very weak when they reach the ground receiving station, and the high gain of low-noise amplifiers can amplify these signals for demodulation and further processing.
3. Wide band or specific frequency band operation
Low noise amplifiers can be designed to operate in a wide frequency band and can amplify signals over a wide frequency range.
4. High linearity
The high linearity of a low-noise amplifier ensures that the waveform and frequency characteristics of the signal are not distorted during the amplification process, ensuring that these signals can still be accurately demodulated and recognized after amplification.

Application:

1. Communication field
In wireless communication systems, such as mobile phone communication, wireless local area network (WLAN), etc., low noise amplifier is a key component of the receiver front-end. It amplifies the weak RF signals received by the antenna while minimizing the introduction of noise, thereby improving the receiving sensitivity of the communication system.
2. Radar system
When the electromagnetic waves emitted by the radar interact with the target and return to the radar receiver, the signal strength is very weak. The low-noise amplifier amplifies these weak echo signals at the front end of the radar receiver to improve the detection capability of the radar.
3. Instruments and meters
In some high-precision electronic measuring instruments, such as spectrum analyzers, signal analyzers, etc., low-noise amplifiers are used to amplify the measured signal, improve the measurement accuracy and sensitivity of the instrument.

Qualwave Inc. provides low noise amplifier module or whole machine from DC to 260GHz. Our amplifiers are widely used in wireless, receiver, laboratory testing, radar and other fields.
This article introduces a low-noise amplifier with a frequency range of 0.1~18GHz, a gain of 30dB, and a noise figure of 3dB.