quarter-wave


Also found in: Acronyms.

quarter-wave

[′kwȯrd·ər ‚wāv]
(electromagnetism)
Having an electrical length of one quarter-wavelength.
References in periodicals archive ?
The 31 papers in the proceedings discuss such aspects as Sierpinski diamond fractal antenna array using a quarter-wave feed network for wireless applications, a survey of miniaturizing circularly polarized antennas for future wireless communication, neighbor nodes discovery schemes in a wireless sensor network: a comparative performance study, the implementation of a new very large-scale integration architecture for add-multiply operators using a modified booth recording techniques, developing a simple and economic voice control mechanism for operating home appliances, and implementing an efficient and fully automatic magnetic resonance image segmentation through machine learning.
The collimated laser beam goes through a polarization beam splitter and a quarter-wave plate and then be coupled into the optical microscope system via a pellicle beam splitter.
It synthesizes the functionality of a quarter-wave plate and a focusing lens in an ultrathin metalens.
Most often, polarization control is achieved with a quarter-wave plate which is one or several layers and the common structure is meander line [1].
Many novel metasurface devices have been proposed so far, such as planar chiral plates [10], holography [11], spin-controlled photonics [12], wave orbital angular momentum manipulations [13-16], polarization converters and quarter-wave plates [17,18], flat lens and focusing [19-22], and Huygens metasurfaces [23,24].
Subsequently, the beam is directed toward an experimental configuration composed of two lineal polarizers, a transmission liquid crystal spatial light modulator (TLC-SLM, Sony model LCX038ARA spatial resolution: 1024(H) x 768(V) pixels), and two quarter-wave plates.
As a result of investigations carried out in [4] significant advantages of MT performed as SICR have revealed as compared to a MT with lumped parameter and compared with known MT of microwave range as quarter-wave homogeneous resonators.
The quarter-wave patch and half-mode cavity antennas [4] are two typical designs of half-size resonator antennas that are suitable for wearable applications.