What is another word for phase modulator?
Pronunciation: [fˈe͡ɪz mˈɒdjʊlˌe͡ɪtə] (IPA) 
A phase modulator is a device that is used to vary the phase of a signal. The device operates by changing the phase of a signal in order to alter its characteristics. There are several synonyms for the phrase "phase modulator" including, but not limited to, phase shifter, phase adjuster, and phase controller. These are all terms that refer to devices that change the phase of a signal. While the specific functionality and technical specifications of these devices may vary, they are all commonly used in signal processing applications to adjust phase and enhance the performance of electronic circuits.
