نتایج جستجو برای: dmt phase shifter
تعداد نتایج: 600912 فیلتر نتایج به سال:
This paper presents a new W-band transmitter with the proposed injection locking frequency multiplier based phase shifter to enable a low frequency local oscillator (LO) distribution. This scheme eliminates sophisticated high frequency phase shifters and LO distribution networks to reduce system design complexity and power consumption, and more importantly, offers great array scalability.
A common problem when profiling surfaces with steps or discontinuities using white-light (coherence-probe) interferometry is localized spikes (batwings) or spurious peaks due to diffraction effects. We show that errors due to these effects can be minimized by processing the irradiance data obtained with an achromatic phase-shifter operating on the geometric (Pancharatnam) phase to yield the val...
A FBG-based pump-phase-shifter is used in the Raman-assisted PSA. By actively tuning the FBG central-wavelength to enable pump phase optimization, up-to-5.6dB signal gain is observed. An improvement of ~6% EVM and ~4dB system sensitivity is observed by 20/25-Gbaud QPSK signals. Introduction Capacity upgrade utilizing higher level modulation formats such as 64QAM and 256QAM has been studied aggr...
The effects of two major metabolites of tamoxifen, N-demethyltamoxifen (DMT) and 4-hydroxytamoxifen (4OHT), on MCF-7 cell proliferation and cell cycle kinetic parameters were compared with those of the parent compound. All three compounds produced dose-dependent decreases in the rate of cell proliferation which were accompanied by decreases in the percentage of S- and G2-M-phase cells. 4OHT was...
In this study, a mechanical movable device is used to achieve tuning phase shifter with adjustable substrate, which has huge potentiality of range. The main body microstrip structure. substrate two layers one layer. By moving the layer, equivalent relative permittivity component changed and tunability realized. -128.2° 96.1° at 6GHz while transmission coefficient S21 from -2.09dB -2.70dB throug...
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