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In this letter, a novel seventh order equal ripple wideband bandstop filter (BSF) is proposed and demonstrated. This device is based on dumbbell annular ring (DAR) resonators which introduces additional magnetic coupling with quarter wavelength open circuited stubs in the conventional 50-Ω transmission line. However, introducing this DAR resonators (DARRs) generate multiple transmission zeros which...
In this letter, a compact sixth order microstrip Chebyshev short circuited stubs high pass filter (HPF) via hole grounding is proposed. It is fundamentally based on quasi-lumped short circuited stubs of an optimum commensurate line band pass filter, which widen the bandwidth of the device. Furthermore, the resonant frequency and return loss performance can be improved by multiple transmission zeros,...
This Paper illustrates the low pass filter (LPF) topology based on complementary split ring resonator (CSRR) with added slot. The introduction of a slot structure in the CSRR can not only reduce the group velocity of the transmission but also decrease the inductive reactance which results in compactness of the device by providing the transmission zero after resonance. Therefore, quasi-elliptic function...
In this letter, compact microstrip Chebyshev function low pass filters (LPFs) with sharp roll-off based on annular ring resonators (ARRs) on various substrates and it's design theory are demonstrated. To fabricate ARRs, Chebyshev type - I function with fixed side lobe level (SLL) and method of moments (MOM) for numerical analysis are applied. The ARRs inscribed on the ground plane, behave as shunt...
A technique of reducing the size of the tapered EBGS assisted microstrip T-line is proposed. After that, offset EBGS has been proposed for getting improved performance over tapered EBGS. This technique also eliminates the limitation of having larger size of the mother EBGS while using tapered EBGS. Offsetting EBGS includes effective use of number of EBGS at the beneath of T-line, substantially reduced...
A versatile investigation has been accomplished on the performances of circular, square, triangular and hexagonal electromagnetic bandgap structures (EBGSs). The authors have observed that different EBGSs having an identical etching area perform identically. Therefore, a new definition of the filling factor (FF) has been proposed that yields an identical value of FF and identical performance for various...
To enhance the efficacy of antennas, filters and microwave circuits, EBG structures have been developed into most notable framework considering their unique electromagnetic and sophisticated properties. This article investigates the relationship between the aspect ratio of annular ring and performance of the coupled-line filter. A number of methods, uniform distribution of ring patterns with constant...
A novel modified dumbbell shape electromagnetic bandgap structure (EBGSs), trapezoidal slotted dumbbell shape EBGS, has been introduced. Very wide stopband and improved low-pass performances have been reported for particular designs using them. These designs are compared with conventional dumbbell shape EBGS. Trapezoidal slotted dumbbell pattern has shown very attractive performance with very sharp...
A new type of antenna is presented in this paper. The main structure is a slot-loaded microstrip patch antenna fed by a half-width microstrip line. Two different types of antenna structure are combined together to make a single element antenna, and the radiation properties of both antennas are utilized in the proposed highly efficient antenna. Radiation from the antenna structure is achieved primarily...
Electromagnetic Band Gap (EBG) structures which is an exclusive innovation in modern microwave design arena by reason of their high potential and less intricacy of designing in the microwave and millimeter-wave integrated circuits. This paper examines the relationship between the filling factor (FF) of the annular ring structure on couple-line and capacitive coupling for improving the performance...
Electromagnetic Band Gap Structures (EBGs) have been developed to improve the efficiency of microwave and millimeter-wave devices, grown into most prominent framework by virtue of their unique electromagnetic and electrical properties. This article inspects the relationship between the operating performances of the low pass filter with the different EBG pattern. In this article, two high selectivity,...
In modern microwave design sector, Electromagnetic Band Gap (EBG) structures which is a unique innovation by virtue of their high potency and low complexity in designing with integrated circuits. This article examines the relationship between operating performance of different substrates and Tschebycheff polynomial distribution. A number of methods, method of moments (MOM) for numerical analysis and...
In modern microwave design domain, Electromagnetic Band Gap (EBG) structures which is a unique innovation in consideration of high potential and low complication in designing with microwave integrated circuits. This article inspects the relationship between Tschebycheff polynomial distribution and operating behaviour of different substrates. A number of methods, Tschebycheff polynomial distribution...
The ballistic performance of Si and Ge nanowire (NW) is compared in this study. Channel length and diameter of the NW is taken to be 12 nm and 3 nm respectively. Current-Voltage characteristic is obtained by self-consistently solving the Non Equilibrium Greens Function (NEGF) transport equation with Poisson's equation. The result is obtained at <001> channel orientation. Simulation result...
Here we report effects of gate length (Lg) scaling on the ballistic performance of a Si nanowire (NW) FET using three dimensional quantum simulation. Three different gate length 10nm, 12nm & 15nm are analyzed while 3nm diameter of the NW are taken. Current-Voltage characteristic is obtained by self-consistently solving the Non Equilibrium Greens Function (NEGF) transport equation with Poisson's...
A microstrip transmission line on the Chebyshev distributed defected ground structures (DGSs) and hybrid DGSs realized by interleaving conventional photonic bandgap structures (PBGSs) are proposed. Two different designs are proposed to realize the better performance of the low pass filter (LPF). It is observed that transmission line over non-uniform DGSs have sharper cutoff frequencies and very low...
A microstrip transmission line on a Binomial distributed hybrid defected ground structures (DGS) with interleaving photonic bandgap structures (PBGS) are proposed. Four different approaches are utilized to realize the better performance of the low pass filter (LPF). In all these cases, the length, width or both is made non-uniform in accordance with the co-efficient of Binomial distribution. It can...
A novel technique of designing nonuniform dumbbell shape electromagnetic bandgap structure (EBGS) assisted microwave transmission line has been proposed that shows distinguished performance. The proposed design has sinusoidal appearance of binomially distributed nonuniform EBG structures. Tapered dumbbell shape EBGS assisted designs using the proposed method have been investigated and the result is...
Two patterns of electromagnetic bandgap structure (EBGS) have been proposed — one is dumbbell shape EBGS having circular slots as bigger slots and another one is rectangular EBGS. A sequence of arbitrary coefficients has been proposed to make nonuniform EBGSs that results better performance than that of nonuniform EBGSs realized by binomiall coefficients. A potential technique has also been imposed...
Novel designs of dumbbell shape EBGS have been reported with distinguished filtering features that include larger stopband, dual-band, multi-band and low-pass performance. None but dumbbell shape EBG structure alone can show all mentioned different performances with minor modification and change in dimensions. Beyond the conventional ideas a special idea has been incorporated by restructuring the...
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