IntroductionCirculators are special microwave devices that guide signals in one direction while blocking them in the opposite direction. In cryogenic experiments, such as superconducting qubits or ultra-low-noise amplifiers, they are essential for protecting delicate devices from unwanted reflections and interference. Why Circulators Are ImportantAt ultra-low temperatures, devices like qubits……

In the scenarios of radio and television transmitting system and military communication base station, high power RF link has been facing the two major problems of narrowband standing wave fluctuation and heat dissipation bottleneck for a long time. The recently launched 170-180MHz/1500W circulator, with millimeter wave magnetic circuit optimization technology and composite cavity heat dissipation ……

In radar system, the circulator is the core passive device to realise efficient isolation and directional transmission of transceiver signals. Through the non-reciprocal property of ferrite material, it precisely guides the signal flow: when transmitting, it transmits high-power pulses from the transmitter to the antenna port in a directional manner, and when receiving, it guides the weak echoes c……

RF Circulators and Isolators are defined as RF Ferrite component, transfer RF signals by control of the ferrites. An RF signal experiences a low loss in the direction of arrow and high loss in reverse due to its non-reciprocal. RF Circulators and Isolators non-reciprocal work on the magnetic fields. RF signal can still be reciprocal in the magnetic fields without RF Ferrite. Resonant frequenc……