The phase determines the oscillation frequency, and gain is a criterion for oscillation to exist. The four poles in the loop equation each contribute –45° phase shift accumulating the required total ...

In superconducting circuits, currents can flow without applying any electric field. The role of the electrostatic potential difference required to drive a current in conventional circuits is played ...

A phase-locked loop (PLL) is a feedback system that combines a voltage-controlled oscillator (VCO) and a phase detector in such a way that the oscillator signal tracks an applied frequency or ...

In spread-spectrum and direct-sequence receivers, it’s often necessary to change the frequency of the clock oscillator, and thus the spreading-code clock, to lock the receiver’s reference pseudorandom ...

A new phase shifter does not need clean-room facilities for fabrication, so is inexpensive to manufacture. The liquid-metal enabled phase shifting elements have a 'passive' nature, unlike the 'active' ...

Advanced phase array antenna systems could adopt a new type of high-performance phase shifter thanks to research conducted at Birmingham University. Researchers led by Dr Yi Wang from Birmingham’s ...

The LPS-802 Lab Brick phase shifter from Vaunix Technology, with a frequency of 4-8 GHz, provides excellent phase accuracy while offering 1 degree phase resolution. Phase can be set from the GUI, ...