phase front

phase front

[′fāz ‚frənt]
(physics)
A surface of constant phase (or phase angle) of a propagating wave disturbance.
References in periodicals archive ?
The phase measurement clearly shows the phase front with the shape of the antenna aperture.
Rosneft and ExxonMobil selected CB&I UK and Foster Wheeler Energy as contractors for initial phase front end engineering and design for a proposed Russian Far East LNQ project.
Contract Awarded for Phase front end engineering and design (FEED) for a proposed Russian Far East liquefied natural gas project.
There are several methods for reflectarray elements design to achieve a planar phase front. For example, one is to use identical microstrip patches with different-length phase-delay lines attached so that they can compensate for the phase delays over the different paths from the illuminating feed.
The parabolic reflector converts a spherical phase front from the illuminating feed into a planar phase front close to its aperture.
Neri did say, though, that this number is "in double digits." The system, according to Elettronica's marketing and sales director Giuseppe Maresca, will not, however, employ the cross-eye jamming techniques in development by Elettronica, the method of placing jamming transmitters in such a way so as to distort the phase front of the transmitted jammer signal.
In this case, cylindrical waves with planar phase front propagate inside the waveguide and are transformed to spherical waves in the conical horn with a spherical cap aperture.
A high safety specification includes head restraints which react in any emergency to minimise whiplash neck injury, a body safety cage and a "five- phase front deformation zone".
3, where we can observe that the electric fields produced by [TM.sub.21] and [TM.sub.31] modes have the rotating phase front expected by a non-zero OAM [21].
For the port driven in the figures it can be observed that the phase front across the aperture elements is -45[degrees], -90[degrees], -135[degrees] and -180[degrees].
According to Maresca, the jamming system for the Horizon frigates will not employ the crosseye jamming techniques in development by Elettronica, the method of placing jamming transmitters in such a way so as to distort the phase front of the transmitted jammer signal.
This result is most likely a consequence of having optimized the phase front at 40 [degrees] elevation, while the original setting of the primary panels was optimized at 90 [degrees].