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Variable Phase Shifters | Custom Microwave Inc ...
https://custommicrowave.com/index.cfm?pagetitle=Variable-Phase-Shifters
The technology of Phase Shifters and Flangers
http://www.geofex.com/Article_Folders/phasers/phase.html
Their "Small Stone" phase shifter used an "Operational Transconductance Amplifier" or OTA as the variable resistance in a phase stage, and an internal darlington buffer in one of the OTA IC's on the market as the buffer for the next stage.
DIY Variable Phase Shifter | Home Theater Forum and Systems
https://www.hometheatershack.com/threads/diy-variable-phase-shifter.5343/
For variable phase, you need to look at the circuit above. This is very similar to how it is done in a lot of plate amps and it works OK. To go completely variable, you will have to have some changes to add a Vr and perhaps some adjustments to the capacitance depending on the Vr you use. 1 - 6 of 6 Posts.
How Does a Phase Shifter Work? RF Phase Shifter Types ...
https://www.arrow.com/en/research-and-events/articles/rf-phase-shifters-types-of-phase-shifters-and-how-they-work
- In audio phase shifting, a sound engineer can produce a strange guitar or another instrumental effect by overlaying a second phase-shifted signal on the original. When these signals are 180 degrees out of phase— one wave starts at half the time period of the first wave from the same source, causing a positive wave to meet the second negative wave— the sound …
BALANCED VARIABLE PHASE SHIFT CIRCUIT
https://www.idc-online.com/technical_references/pdfs/electronic_engineering/Balanced_Variable_Phase_Shift_Circuit.pdf
BALANCED VARIABLE PHASE SHIFT CIRCUIT While working on the new UHF receiver for VESNA, I came across a problem when I wanted to correct for a delay in a 16 MHz sine wave signal. The idea was to have a circuit where you could adjust the phase shift by …
Phase Shifters - an overview | ScienceDirect Topics
https://www.sciencedirect.com/topics/engineering/phase-shifters
Ferrite phase shifters are usually two-port devices that provide a variable phase shift of the transmission path by changing the bias field of the ferrite. There are many types that are characterized by their microwave performances, their switching characteristics, and …
Phase shifters 180 360 degree analog voltage controlled up ...
https://www.sigatek.com/Phase-Shifters
SF52A2 Analog Phase Shifter 180 degree 60-120 Mhz. Octave Band 60-120 Mhz analog electronically controlled phase shifter. Phase shift is monotonic and continuously variable 0 to more than 180 degree at center frequency with respect to control voltage... $345.00.
Adjustable phase shifter | All About Circuits
https://forum.allaboutcircuits.com/threads/adjustable-phase-shifter.95983/
You shift the signal by a delay equal to the difference in distance between the noise source and the anti-noise source. Then, if you invert the delayed signal, it should subtract all the noise frequencies with the correct anti-phase since the delayed-and-inverted signal should equal the inverted image of the noise signal at that point.
CONTROLLING PHASE SHIFT DIGITALLY A simple phase shift ...
https://pdfserv.maximintegrated.com/en/an/AN184.pdf
As the signal frequency varies from DC to infinity, the phase shift will vary from 0 to +180 degrees. You can also see that by varying R1, the phase shift at a given frequency will vary likewise. If the position of R1 and C1 are reversed, as in Figure 2, the transfer function becomes Application Note 184 Digitally-Controlled Phase Shift Using the DS1669 www.maxim-ic.com
RF Phase Shifters | Arrow Electronics | Arrow.com
https://www.arrow.com/en/categories/rf-and-microwave/rf-other/phase-shifters
Phase shifters are devices utilized in high frequency RF designs to provide a phase shift to the signal by adding propagation delay. They are used in applications including satellite communications, beamforming modules, phase cancellation, communications antennas and phased-array radar. Phase shifters can be analog or digital, active or passive.
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