Band gap, in solid-state physics, a range of energy levels within a given crystal that are impossible for an electron to possess. Generally, a material will have several band gaps throughout its band structure (the continuum of allowed and forbidden elec
- 《IEEE Transactions on Circuits & Systems I Regular Papers》 被引量: 39发表: 2006年 A 320-MHz four-paths bandpass sigma-delta modulator Ferragina, V, Fornasari, A, Gatti, U, Malcovati, P, Maloberti, F (2006) A wide-band 280-MHz four-path time-interleaved bandpass sigma-delta ...
Two filtering-response power dividers embedded substrate integrated waveguide (SIW) filter are presented in this paper. By employing different SIW resonators, single- and dual-band filtering response are achieved, respectively. The even- and odd-mode met
Figure 1:bandpass and band-stop filter frequency response There are many possible approaches to building bandpass and notch filters. Most common bandpass ad notch filters are LC filters, like those shown in Figure 2. The circuits inFigure 2aare bandpass filters. The circuits inFigure 2bare notch...
In this article, a compact W-band differential I–Q phase shifter is designed and implemented using 28-nm CMOS technology. The phase shifter is capable of ... A Vahdati,D Parveg,M Varonen,... - 《Analog Integrated Circuits & Signal Processing》 被引量: 1发表: 2015年 A Method for Bro...
The ideal resonator shown there, with no losses, would only pass the resonant frequency, but real circuits have finite losses, characterized as we noted previously by the quality factor Q. Losses cause a resonant circuit to allow a finite band of frequencies to pass through it; the bandwidth ...
It should be noted that in the circuits of Fig. 4, for S21 = 1, the signal is completely transmitted from P1 to P2; And for S21 = 0, the signal is completely transmitted to the ground (second harmonic control). The other two goals, i.e., S21 = 1(@0.7 GHz), S21...
The present solution relates to a device for operation and control of constant current light emitting diode, LED, lamps. The device comprising at least one circuit board (405) comprising LED drive and control circuits. The device further... S Aagren,IH Pourian,G Josefsson,... 被引量: 0发...
A design concept and experimental results are reported on a distributed amplifier with a flat gain characteristic. To obtain a broadband characteristic, the distributed amplifier is designed in such a way that the input power to each FET is as equal as possible. The obtained performances at 2 to...
The device models so developed have been used to simulate a class digital logic circuits and dynamic memories (e.g., DRAM) to analyze their suitability in future very large scale integration design. Circuit level simulations explicitly show that the proposed p+ -i-n+-type BTBT nanowire FETs ...