VPS

(redirected from Variable Phase Shifter)
AcronymDefinition
VPSVirtual Private Server
VPSVertical Picture Stabiliser
VPSVolume Performance Standard
VPSVirtual Paths
VPSVirtuozzo Plesk
VPSVirus Protection System
VPSVideo Programming System
VPSVtam Printer Support System
VPSVirtual Private San
VPSVirus Prevention System
VPSValve Pause System
VPSVideo Programme Service
VPSVues par Seconde (French: Views per Second; cameras)
VPSVietnamese Professionals Society
VPSVoice Processing System
VPSVictorian Public Service
VPSVerizon Partner Solutions (telecommunications)
VPSVariable Print Specification
VPSVirus Protection Software
VPSVideo Programming Signal
VPSViewers Per Set
VPSVisual Preference Survey
VPSVehicle Power System
VPSVideo Program System
VPSVentriculoperitoneal Shunt
VPSVariable Phase Shifter (microwave technology)
VPSVice-President, Students (University of British Columbia; Canada)
VPSVapor Phase Soldering
VPSVTAM Printer Support (Levi, Ray & Shoup, Inc.)
VPSVolume Performance Standard (Medicare)
VPSVariable Packet Size
VPSVariable Power Supply
VPSVital Processing Services, LLC
VPSVakopleiding Payroll Services
VPSVacuolar Protein-Sorting Protein (biology)
VPSValparaiso, FL, USA - Fort Walton Beach (Airport Code)
VPSVoluntary Product Standard
VPSVector-Sum Phase Shifter (electrical engineering)
VPSVinyl Preservation Society (sound recordings)
VPSVisual Positioning System
VPSVision Protection System (various companies)
VPSVirtual Prototyping Simulation
VPSVisual Programming System
VPSVirtual Private System (hosting environment)
VPSVideo Production Suite
VPSVector Product Standard
VPSVoucher Processing System
VPSVisual Product Simulation
VPSValley Presbyterian School (California)
VPSVehicle Peculiar Supplement
VPSVirtual Prototyping Suite
VPSVideo Printing System
VPSVehicle Proficiency Support
VPSVirtual Printer System (printers with mainframe connectivity)
VPSVanguard Planning Summary
VPSVoice Protocol Simulations
VPSVirtual Packing System
VPSVertical Package Solutions
VPSVery Poor Sample (oilfield)
VPSVietnam Postal Services Company
References in periodicals archive ?
Moritake, "Increasing the speed of microstrip-line-type polymer-dispersed liquid-crystal loaded variable phase shifter," IEEE Transactions on Microwave Theory and Techniques, vol.
It requires an additional variable phase shifter to change phase shifts between the voltage and current.
This can be done by including a variable phase shifter in the LO path.
Because active multipliers attenuate [f.sub.o] theoretically, [f.sub.o] can be suppressed further by adjusting the coupling coefficient of the couplers, which are located before and after the multiplier, and the phase of the variable phase shifter. (9) To have perfect cancellation of [f.sub.o], the magnitude and phase of the two signals must be equal and out-of-phase at the output coupler of the feedforward structure.
The IM[G.sub.3] and IM[G.sub.h] control blocks consist of a variable attenuator and a variable phase shifter to control the magnitude and phase of the third and higher order inverse IM signals to the HPA.
A simple way to understand the operation of the mixer as a phase detector is to feed its LO and RF ports with the same signal with a variable phase shifter at one of these ports.
The predistortion circuit consists of a power divider, an automatic level controller (ALC), the LI[M.sub.2], a mixer, a variable attenuator and a variable phase shifter. The input two-tone signals are divided into the power amplifier path and ALC path through the power divider.
The phase comparator (PC) consists of two-magnitude comparators and furnishes a voltage ([V.sub.[[PHI]1]]) to the variable phase shifter ([[PHI].sub.1]) so that the phase of two signal paths to the subtracter are out-of-phase.
The variable phase shifter is a reflection type hybrid phase shifter using varactor diodes (11), which has about 120[degrees] of adjustable phase control range.
In a case where the VCO output frequency is too low, a continuously variable phase shifter cannot be obtained.
Variable attenuation is included in the circuit to enable the output level to be precisely adjusted to match the input reference, while the variable phase shifter adjusts the power amplifier output in an antiphase arrangement with the input reference.
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