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RF Isolator

  • Coaxial Isolator

    Coaxial Isolator

    RF coaxial isolator is a passive device used to isolate signals in RF systems. Its main function is to effectively transmit signals and prevent reflection and interference. The main function of RF coaxial isolators is to provide isolation and protection functions in RF systems. In RF systems, some reflection signals may be generated, which may have a negative impact on the operation of the system. RF coaxial isolators can effectively isolate these reflected signals and prevent them from interfering with the transmission and reception of the main signal.

    The working principle of RF coaxial isolators is based on the irreversible behavior of magnetic fields. The magnetic material inside the isolator absorbs and converts the magnetic field energy of the reflected signal, converting it into thermal energy for dissipation, thereby preventing the reflected signal from returning to the source.

  • Drop in Isolator

    Drop in Isolator

    The Drop-in isolator is connected to the instrument equipment through a ribbon circuit. Usually, the isolation degree of a single Drop-in isolator is around 20dB. If higher isolation degree is required, double or multi junction isolators can also be used to achieve higher isolation degree. The third end of the Drop-in isolator will be equipped with a attenuation chip or RF resistor. An Drop-in isolator is a protective device used in radio frequency systems, whose main function is to transmit signals in a unidirectional manner to prevent antenna end signals from flowing back to the input end.

  • Broadband Isolator

    Broadband Isolator

    Broadband isolators are important components in RF communication systems, providing a range of advantages that make them highly suitable for various applications. These isolators provide broadband coverage to ensure effective performance over a wide frequency range. With their ability to isolate signals, they can prevent interference from out of band signals and maintain the integrity of in band signals.

    One of the main advantages of broadband isolators is their excellent high isolation performance. They effectively isolate the signal at the antenna end, ensuring that the signal at the antenna end is not reflected into the system. At the same time, these isolators have good port standing wave characteristics, reducing reflected signals and maintaining stable signal transmission.

  • Dual Junction Isolator

    Dual Junction Isolator

    A double-junction isolator is a passive device commonly used in microwave and millimeter-wave frequency bands to isolate reflected signals from the antenna end. It is composed of the structure of two isolators. Its insertion loss and isolation are typically twice that of a single isolator. If the isolation of a single isolator is 20dB, the isolation of a double-junction isolator can often be 40dB. The port standing wave does not change much.

    In the system, when the radio frequency signal is transmitted from the input port to the first ring junction, because one end of the first ring junction is equipped with a radio frequency resistor, its signal can only be transmitted to the input end of the second ring junction. The second loop junction is the same as the first one, with RF resistors installed, the signal will be passed to the output port, and its isolation will be the sum of the isolation of the two loop junctions. The reflected signal returning from the output port will be absorbed by the RF resistor in the second ring junction. In this way, a large degree of isolation between the input and output ports is achieved, effectively reducing reflections and interference in the system.

  • SMD Isolator

    SMD Isolator

    SMD isolator is an isolation device used for packaging and installation on a PCB (printed circuit board). They are widely used in communication systems, microwave equipment, radio equipment, and other fields. SMD isolators are small, lightweight, and easy to install, making them suitable for high-density integrated circuit applications. The following will provide a detailed introduction to the characteristics and applications of SMD isolators.

    Firstly, SMD isolators have a wide range of frequency band coverage capabilities. They typically cover a wide frequency range, such as 400MHz-18GHz, to meet the frequency requirements of different applications. This extensive frequency band coverage capability enables SMD isolators to perform excellently in multiple application scenarios.

  • Microstrip Isolator

    Microstrip Isolator

    Microstrip isolators are a commonly used RF and microwave device used for signal transmission and isolation in circuits. It uses thin film technology to create a circuit on top of a rotating magnetic ferrite, and then adds a magnetic field to achieve it. The installation of microstrip isolators generally adopts the method of manual soldering of copper strips or gold wire bonding. The structure of microstrip isolators is very simple, compared to coaxial and embedded isolators. The most obvious difference is that there is no cavity, and the conductor of the microstrip isolator is made by using a thin film process (vacuum sputtering) to create the designed pattern on the rotary ferrite. After electroplating, the produced conductor is attached to the rotary ferrite substrate. Attach a layer of insulating medium on top of the graph, and fix a magnetic field on the medium. With such a simple structure, a microstrip isolator has been fabricated.

  • Waveguide Isolator

    Waveguide Isolator

    A waveguide isolator is a passive device used in the RF and microwave frequency bands to achieve unidirectional transmission and isolation of signals. It has the characteristics of low insertion loss, high isolation, and broadband, and is widely used in communication, radar, antenna and other systems.

    The basic structure of waveguide isolators includes waveguide transmission lines and magnetic materials. A waveguide transmission line is a hollow metal pipeline through which signals are transmitted. Magnetic materials are usually ferrite materials placed at specific locations in waveguide transmission lines to achieve signal isolation. The waveguide isolator also includes load absorbing auxiliary components to optimize performance and reduce reflection.

  • Microstrip Attenuator With Sleeve

    Microstrip Attenuator With Sleeve

    Microstrip Attenuator With Sleeve is a circular sleeve added to the rotary microstrip attenuator; This sleeve contains an air hood with a simulated impedance characteristic of 50 ohms. At the contact point between the microstrip attenuator and the sleeve. We use beryllium copper with good elasticity as the grounding edge, and the specific uneven wavy wrinkles on the grounding edge ensure good grounding.