In this design, an adjustable triple-band triple-mode dielectric waveguide (DW) bandpass filter with multiple transmission zeros (TZs) is presented. The design involves creating blind holes and a slot in the resonator to control operating frequencies of three modes (TM <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$_{\text{010}}$</tex-math> </inline-formula> , TM...

Abstract The scattering of an electromagnetic wave from a two-dimensional, slightly rough dielectric surface is studied based on the stochastic functional approach. It shown that in case TM(p)-polarized incidence there exists zero incoherent at angle we call 'Brewster angle', which depends incident contrast to Brewster coherent reflection independent angle, 'quasi-anomalous scattering' can generally occur optically denser medium critical total both TE(s)- and incidence, regardless side...

A pole-converging X-band low-noise amplifier (LNA) using 130 nm CMOS technology is proposed. An on-chip capacitor CPC added between the gate and drain node of common-gate (CG) stage. The combines with a noise-reducing inductor L1 to converge poles into desired band, which results in effect wideband performance. proposed modified broadband simultaneous noise input-matching technique adopted triple-cascode configuration realize good input matching low figure (NF). Measurement exhibit flat...

This work proposes a novel linearized low noise amplifier (LNA) for X-band applications with flat power gain, performance and enhanced linearity. In this study, triple-cascode topology dual-resonant network is utilized modified post-distortion introduced to improve the The LNA utilizes subthreshold auxiliary NMOS transistor reduce nonlinearity consumption. addition, methodology proposed predict characteristic of linearity network. With small increase 1 mW in consumption due inclusion...

Abstract This paper deals with the scattering of an electromagnetic (EM) wave from a waveguide structure slightly rough surface. The is dielectric film on planar, perfectly conductive surface, and top two-dimensional (2D) homogeneous Gaussian random treatment based stochastic functional theory where EM field represented in terms Wiener - Hermite Numerical calculations show that enhanced backscattering cross-polarization occur, but no satellite peak appears for 2D contrast to case 1D caused...

In this brief, the exhaustive design method for in-line quasi-TEM mode dielectric waveguide filter (DWF) with dispersive coupling is presented. Using structure, controllable finite position transmission zeros (TZs) can be implemented without cross-coupling which commonly used in DWF, and coefficient filters need provided at center frequency same time. The matrix (CM) including CM M0 slope Md are derived from synthesized traditional CM, procedures of parameter extraction DWF also demonstrated...

Due to the expansion of new energy sources, complexity and difficulty power grid dispatching are further increased, especially simultaneously considering security, economic environmental factors. Existing methods, such as bisection method proportional control, not competent for multi-objective complex dispatching. This paper proposes a hierarchical multi-object deep deterministic policy gradient (HMO-DDPG) algorithm dispatch smart with sources. In this algorithm, lower Decision Layer uses...

In this paper, a broadband three-way power divider based on E-Y structure is presented. It can realize odd-ways with compact structure, low loss, and VSWR. addition, the amplitude phase are good balance. The simulated results of has shown that return loss greater than 30 dB, difference output ports less 0.1 dB from 26 to 40 GHz (the whole Ka-band).

A novel hairpin ring resonator (HRR) is proposed in this paper. The HRR can generates two controllable resonant modes and its mechanism analyzed. Then, a fourth-order dual-band high-temperature superconducting (HTS) bandpass filter (BPF) designed by cascading four HRRs. HTS operating at 1.9 GHz 2.6 fabricated on the MgO substrate with double-side coated YBCO thin films. has compact size (occupies only 17.6 mm × 14 mm). measured results show high performance agree well simulated ones.

With the advance of urban railway transportation and wireless communication technology, an increasing concern is placed on reliability low latency mass transit system. Nowadays, both WLAN LTEM systems, known as two mainstream subway are deployed redundantly with single network in case unexpected failure. However, using a system has irresistibility to frequency interference traditional redundant cold backup manual intolerable delay switching. In this paper, we adopt multipath transmission...

Abstract In studying the multiple scattering of acoustic waves by a half-space distributed discrete scatterers, quasicrystalline approximation(QCA) approach together with hole correction (HC) or pair distribution functions (PDF) have been used extensively, in which system simultaneous equations must be solved to determine effective propagation constant and expansion coefficients coherent exciting field. this paper, we analyse same problem under Foldy's approximation (EFA) using so-called...

A detailed research description about the fiber nonlinearity which includes Gordon and Mollenauer effect, cross phase modulation statistical characterization of nonlinear noise from single carrier to multi-carrier is analyzed.