HMC129G8TR RF/IF and RFID

RF Mixers

RF Mixers are key components used extensively in a variety of radio frequency (RF) leveling and hybrid devices. The performance of an RF mixer directly affects the performance of the overall device, so selecting the right RF mixer is an important consideration. In this article, we will discuss the application field and working principle of the HMC129G8TR RF Mixer.

Application Field

The HMC129G8TR RF Mixer is a passive, broad-band, high-linearity, low-power, low-profile FET mixer ideal for a number of low-IF, low-power wireless applications. Examples of such applications include cellular base-stations and cellular infrastructure, ISM radios, test equipment, satellite reception, IoT devices, automotive, and communications infrastructure.

The HMC129G8TR delivers superior linearity values (+15 dBm IIP3) and power added efficiency values of -13 dBm. It also employs an ultra-small Dielectric RFoG packaging, which offers significant device size reduction over equivalent Discrete designs. The device features a low-power, single-ended RF input and a low-noise voltage-controlled-oscillator (VCO).

Working Principle

The main function of RF Mixers is to convert a low frequency input signal into a higher or lower frequency output signal. The HMC129G8TR does this by mixing the input and the output signals using a special type of diode – the mixer diode.

The HMC129G8TR has two ports, one for the input signal and one for the output, which are connected to the mixer diode via two matched diodes. The input signal is then mixed with the output signal by the mixer diode. The mixing process generates intermodulation products, which are then filtered out by the bandpass filter. The remaining output signals can then be used for further signal processing.

In summary, the HMC129G8TR RF Mixer is an ideal choice for a variety of low-IF, low-power wireless applications, due to its high-linearity, low-power, and low-profile FET design. The mixer offers superior linearity and efficiency values, and a low-power, single-ended RF input. It also features a unique mixer diode and a bandpass filter, which allows for low intermodulation products.