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A phase shift module is a microwave network module which provides a controllable phase shift of the RF signal. [ 1 ] [ 2 ] [ 3 ] Phase shifters are used in phased arrays . [ 4 ] [ 5 ] [ 6 ]
Dynamic – an array of variable phase shifters are used to move the beam; Fixed – the beam position is stationary with respect to the array face and the whole antenna is moved; There are two further sub-categories that modify the kind of dynamic array or fixed array. Active – amplifiers or processors are in each phase shifter element
400 MVA 220/155 kV phase-shifting transformer.. A phase angle regulating transformer, phase angle regulator (PAR, American usage), phase-shifting transformer, phase shifter (West coast American usage), or quadrature booster (quad booster, British usage), is a specialised form of transformer used to control the flow of real power on three-phase electric transmission networks.
A differential phase shifter provides non-reciprocal transmission phase shift. That is, the forward phase shift is different from the phase shift in the reverse transmission direction. It is this difference in phase shifts that enables the non-reciprocal behavior of the circulator. A differential phase shifter consists of one or more ferrite ...
Retrieved from "https://en.wikipedia.org/w/index.php?title=Phase_shifter&oldid=258047886"This page was last edited on 15 December 2008, at 03:40 (UTC). (UTC).
The phase velocity at which electrical signals travel along a transmission line or other cable depends on the construction of the line. Therefore, the wavelength corresponding to a given frequency varies in different types of lines, thus at a given frequency different conductors of the same physical length can have different electrical lengths.
The group delay and phase delay properties of a linear time-invariant (LTI) system are functions of frequency, giving the time from when a frequency component of a time varying physical quantity—for example a voltage signal—appears at the LTI system input, to the time when a copy of that same frequency component—perhaps of a different physical phenomenon—appears at the LTI system output.
A waterfall display depicting several PSK31 transmissions at around 14.07 MHz. The green lines indicate a station that is transmitting. PSK31 or "Phase Shift Keying, 31 Baud", also BPSK31 and QPSK31, is a popular computer-sound card-generated radioteletype mode, used primarily by amateur radio operators to conduct real-time keyboard-to-keyboard chat, most often using frequencies in the high ...