This paper proposes a novel diplexer based on triple-mode dielectric-loaded cylindrical cavities. Such two metal cavities are designed to achieve different frequency bands, while three resonant modes of single cavity classified as TM mode and pair hybrid (HE) degeneration modes. An off-centered dielectric resonator instead traditional corner cuts perturbation or screws properly perturbs the degenerate in same cavity. Extensive study is then conducted design this proposed diplexer. Finally,...

Two types of modified open- or short-circuited stub-loaded λ/4 resonator and their applications to second- order dual-band bandpass filters are presented in this letter. Based on the resonance characteristics analysis, it is found that first two resonant frequencies resonators can be independently controlled. Furthermore, different frequency ratios achieved by loading stubs. Finally, illustrate proposed idea, second-order with controllable bandwidths designed, fabricated measured. The...

This paper proposes a triple-mode dielectric-loaded cylindrical cavity diplexer by using novel packaging technique for long term evolution (LTE) base station applications. Four metal cavities, loaded dielectric resonator (DR), are designed to resonate at two different frequencies the operation. In this context, three resonant modes of single classified as TM mode and pair hybrid degenerate (HE modes). The in same properly excited employing an off-centered DR instead traditional corner-cut...

This paper presents the proposal and design of multistate diplexer on uniform- stepped stub-loaded resonators, that is, a three-state (TSD) four-state (FSD). The two proposed diplexers have an attractive application in frequency-hopping system with miniaturization their overall size. Next, three four sets second-order bandpass filters are applied to form filtering channels, respectively. These channels then used comprise these multiple-state diplexers. In this way, compact size...

A helical resonator with two-sectional different pitches is proposed in this paper. The frequency ratios of the first two resonant modes can be tuned to desirable values a certain range by adjusting pitches. applied design dual-band bandpass filters. To achieve control over filtering characteristics, feeding structure step-rectangular plate and coupling window three apertures are also realize expected external quality factors coefficients bands. validate design, second order fourth filters...

This letter presents a novel quadruple-mode cavity wideband bandpass filter (BPF). Unlike the conventional coaxial resonator, proposed resonator is made up of two symmetrical conductive posts in cylindrical cavity, while four resonant modes are classified as TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">01</sub> mode, xmlns:xlink="http://www.w3.org/1999/xlink">11</sub> and pair TE degenerate (TE+ mode TE− mode). All excited by L-shaped...

In this article, a double-T-shaped stub centrally loaded uniform impedance resonator (UIR) is introduced and its resonant characteristics are well clarified, which provided simple approach for triple-mode wideband bandpass filter (BPF) design. The consists of T-shaped at the center UIR two shunt uniform-impedance stubs stub. Furthermore, loading technique zero-voltage point employed to guide design procedure from proposed resonator. frequencies first three modes can be free adjust by length...

A highly integrated three-state diplexer (TSD) on a single planar elliptical structure is for the first time presented in this paper. Three resonant modes are investigated resonator, e.g., two TM11 degenerate and one TM21 mode. These three designed to form filtering channels, which further combined generate states of diplexer, namely, TSD. The triple-mode resonator fed by microstrip lines In order validate concept, TSD fabricated measured. measured results good agreement with simulated ones.

This article presents two types of dual-narrowband/ wideband filters using modified coaxial cavities with large frequency ratios. The mean dual-band bandpass filters, one which is a filter, and the other narrowband filter. proposed resonator in dual-narrowband filter consists pair disk-loaded stepped impedance (DLCSIR), provides ratio. ratio first resonant modes DLCSIR can be precisely controlled by adjusting ratios dimensions loading disk. By contrast, dual-wideband rectangular (RCSIR), has...

The contact impact stress (CIS) between a manipulator finger and fragile workpiece has significant effect on clamping stability. CIS is affected by various factors, for example, the structural form parameters of finger. In this paper, an optimization method combining Taguchi’s with signal-to-noise ratio (SNR) theory proposed to reduce optimizing fingers internally supported manipulator. process consists three stages. first stage, finite element models are built using SolidWorks, HyperMesh,...

This paper presents a quad-band filter using set of stub-loaded quarter-wavelength resonators operated at the first and fourth passbands (1.8/5.8 GHz) half-wavelength SIRs second third (2.4/3.5 GHz). Furthermore, both loading stub are used to generate another passband. study provides an effective method design with low insertion loss compact size. Finally, proposed is successfully fabricated measured. It shown that measured simulated performances in good agreement.

In this article, a class of wideband bandpass filters (BPFs) using triple-mode coaxial resonators has been introduced. Each resonator is utilized with TM <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">010</sub> mode, TE− and TE+ mode orthogonal to each other. Two L-shaped feeding probes loading disk are adopted implement the miniaturization these BPFs. To observe degree miniaturization, we set design specification same fractional bandwidth...

In this letter, a quad-mode single band bandpass filter and dual-mode dualband are designed fabricated by the same structure (two coupled loop resonators), which consist of an outer resonator with square-patch perturbation at corner inner corner-cut corner. Four transmission zeros realized in stopbands to improve selectivity two proposed filters. Good agreement is observed between simulated measured performances.

A compact triple-mode dielectric resonator (DR) bandpass filter (BPF) based on a single waveguide cavity is proposed, while three resonant modes of are classified as TM mode and pair hybrid degenerate (HE modes). Two HE degeneration in metal excited by using an off-centered DR approach. They work together to constitute three-pole passband with fractional bandwidth 2.7% at the central frequency 2.53 GHz. To verify proposed idea, BPF fabricated silver plated aluminum cavity, simulated measured...

This article proposes a synthesis method called absorptive extracted pole (EP) resonator (AEPR), for reflective-type bandpass filters (BPFs). By introducing parallel-connected conductance on the traditional EP (EPR), AEPR is capable of electromagnetic power absorbing. When placing in BPF circuits, it possible to remove stopband reflective signal within particular frequency band. The AEPRs are operating independently circuit. cascaded before BPF, can be seen as matching load lower-or...

This paper presents a novel modified coaxial cavity resonator and its application to bandpass filters (BPF) with compact size. Unlike the conventional resonator, proposed is made up of multi-metal-slices-loaded on inner conductor within single rectangle cavity. The technique multi-metal-slices applied enhance self-inductance self-capacitance which leads size reduction. Based research position for loading multi-metal-slices, an efficient way load proposed, Compared central frequency can be...

Abstract Partial discharge detection is an effective method to find potential insulation defects in switchgear. At present, the switchgear mainly composed of busbars, circuit breakers, grounding knives, cables and other components, which leads multiple faults simultaneous discharges partial process In order realize rapid location switchgear, based on introduction methods principles ultrasonic, transient ground voltage UHF discharge, this paper proposes use technology diagnose analyse...

A quadruple-mode dual-wideband filter is proposed in this paper. The cavity resonator consists of two symmetrical conductive posts and a pair downward pointing L-shaped coupling probes cylindrical metal cavity, while four resonant modes the are classified as TM11 mode, TM01 mode degenerate TE (TE+ TE− mode). Successful excitation attributed to probes. first wide-passband realized by second achieved TE+ mode. Finally, designed, fabricated measured. measurements good agreement with...

According to the grasping requirements for fragile workpieces with cylindrical inner walls, a manipulator internal bracing has been designed. The utilizes constant-speed push cylinder drive linkage mechanism and accomplish related works. Considering nature of workpieces, reducing impact velocity between finger workpiece is primary objective in design. To achieve this, an optimization design carried out, which maintains overall average speed manipulator, while only during contact workpiece....