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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.
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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.
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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.
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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.
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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.
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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.
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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.
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Coaxial Circulator
Coaxial circulator is a passive device used in the RF and microwave frequency bands, often used in isolation, directional control, and signal transmission applications. It has the characteristics of low insertion loss, high isolation, and wide frequency band, and is widely used in communication, radar, antenna and other systems.
The basic structure of a coaxial circulator consists of a coaxial connector, a cavity, an inner conductor, a ferrite rotating magnet, and magnetic materials.
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Drop in Circulator
RF embedded circulator is a type of RF device that enables unidirectional transmission of electromagnetic waves, mainly used in radar and microwave multi-channel communication systems. The embedded isolator is connected to the instrument equipment through a ribbon circuit.
The RF embedded circulator belongs to a 3-port microwave device used to control the direction and transmission of signals in RF circuits. The RF embedded circulator is unidirectional, allowing energy to be transmitted clockwise from each port to the next port. These RF circulators have an isolation degree of about 20dB.
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Broadband Circulator
Broadband Circulator is an important component in RF communication systems, providing a series of advantages that make it very suitable for various applications. These Circulators provide broadband coverage, ensuring 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 circulators is their excellent high isolation performance. At the same time, these ring-shaped devices have good port standing wave characteristics, reducing reflected signals and maintaining stable signal transmission.
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Dual Junction Circulator
Double junction Circulator is a passive device commonly used in the microwave and millimeter wave frequency bands. It can be divided into dual junction coaxial circulators and dual junction embedded circulators. It can also be divided into four port double junction circulators and three port double junction circulators based on the number of ports. It is composed of a combination of two annular structures. Its insertion loss and isolation are usually twice that of a single Circulator. If the isolation degree of a single Circulator is 20dB, the isolation degree of a double junction Circulator can often reach 40dB. However, there is not much change in the port standing wave.
Coaxial product connectors are generally SMA, N, 2.92, L29, or DIN types. Embedded products are connected using ribbon cables.
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SMD Circulator
SMD surface mount Circulator is a type of ring-shaped 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. The SMD surface mount Circulator has the characteristics of being compact, lightweight, and easy to install, making it suitable for high-density integrated circuit applications. The following will provide a detailed introduction to the characteristics and applications of SMD surface mount Circulators.
Firstly, the SMD surface mount Circulator has 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 surface mount Circulators to perform excellently in multiple application scenarios.
