STW82101BTR

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RF Mixers

The use of RF Mixers are prevalent in electronic systems like radio frequency receivers and transmitters, where the purpose of the mixer is to convert a RF signal to an intermediate frequency (IF) signal. The STW82101BTR is one such RF mixer that provides high performance for various satellite receivers and other RF applications. This article will discuss the application field and working principle of the STW82101BTR.

Application field

The STW82101BTR is a high quality, low noise RF signal twister that can handle signals between DC and 4GHz. Its wide bandwidth enables it to be used in many applications, such as satellite TV receivers, radio receivers, amplifiers, navigation systems, microwave systems, and other high frequency communications systems. In satellite TV systems, the STW82101BTR allows the RF signal received by the satellite dish to be amplified and then converted into an IF signal which can be manipulated by the receiver. In radio receivers, it is responsible for providing a low-noise conversion of the RF signal into an intermediate frequency.

Working Principle

The STW82101BTR employs a unique two-quadrant RF mixer technology known as “fat-zero”, which provides superior performance in terms of power handling, noise figure, spurious rejection and harmonic suppression. It consists of two RF input ports, and one voltage controlled oscillator (VCO) port. The VCO port supplies an oscillator signal to the two RF input ports, which results in a non-linear combination of the two RF signals. The combination of the two signals produces the desired IF frequency.

The STW82101BTR also has a wide range of noise figure parameters, from 2.1dB to 6dB. It can handle a wide variety of input powers from + 30dBm to -49dBm at 2~4GHz. The linearity performance of this mixer is excellent and it also has excellent harmonic suppression.

Conclusion

The STW82101BTR RF mixer is a great choice for many applications due to its high performance, wide bandwidth, low noise, and excellent linearity and harmonic suppression. It can be used in satellite television systems, radio receivers, amplifiers, navigation systems, and other high frequencies communications systems. It also provides excellent noise figure parameters with a range of 2.1dB to 6dB, and can handle a wide range of input powers from + 30dBm to -49dBm.

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