Results 11 to 20 of about 604,873 (284)

Dielectric resonator bandstop filters [PDF]

open access: yes, 2011
Dielectric resonators have been widely employed in wireless and satellite communication systems due to their inherently large Q allowing them to fashion low loss and narrow bandwidth filters.
Chan, Richard Kayip
core   +6 more sources

Dielectric resonators and filters for cellular base-stations [PDF]

open access: yes, 2003
The investigation into three types of dielectric resonators for use in base-station filtering applications is presented. The triple-mode cubic TE016 resonator is shown to have good performance for high Q applications.
Walker, Vanessa Evelyne Guillemette
core   +6 more sources

Micromachined microwave filters [PDF]

open access: yes, 2003
Microwave circuits in the millimetre wave region demand low loss, and low dispersion transmission lines. The work carried out in this thesis is on low loss transmission lines and filters, based on a square coaxial transmission line which is made only of ...
Llamas Garro, Ignacio
core   +7 more sources

Combined signal‐interference/split‐type microwave multi‐band bandpass filters

open access: yesIET Microwaves, Antennas & Propagation, 2023
Two classes of RF/microwave planar quad‐band bandpass filters (BPFs) that simultaneously exploit transversal signal‐interference and multi‐passband‐splitting mechanisms are reported.
Mohamed Malki   +2 more
doaj   +1 more source

Microwave Photonic Filters and Applications

open access: yesPhotonics, 2023
Microwave photonics is a promising and rapidly developing interdisciplinary field. It combines microwave and photonic techniques to generate, transmit, process, and manipulate microwave signals by using the advantages of broadband, high frequency, and ...
Yi Zhou   +4 more
doaj   +1 more source

Design of superconducting ultra‐wideband filter with wide stopband based on quintuple‐mode resonator

open access: yesElectronics Letters, 2023
In this paper, a new ultra‐wideband (UWB) bandpass filter (BPF) based on QMR (quintuple‐mode resonator) loaded with quasi‐lumped elements is proposed for wide stopband application. The method of connecting five folded U‐shaped resonators with rectangular
Qingyu Kong   +6 more
doaj   +1 more source

Tunable microwave filters using ferroelectric thin films [PDF]

open access: yes, 2009
Frequency agile microwave devices based on Barium Strontium Titanate (BST) thin films have gained a lot of interest in recent years. The frequency agility of the ferroelectric devices is based on the external DC electric field controlled permittivity of ...
Wang, Xu
core   +7 more sources

SNAP microwave optical filters [PDF]

open access: yesOptics Letters, 2021
If the originally flat bottom of a wide quantum well with multiple eigenstates is periodically modulated, its eigenvalues rearrange into denser groups separated by wider gaps. We show that this effect, if implemented in an elongated bottle microresonator [also called a surface nanoscale axial photonics (SNAP) microresonator] allows us to design ...
openaire   +4 more sources

Single‐ and triple‐band bandpass filters using novel perturbed isosceles right‐angled triangular SIW cavities

open access: yesIET Microwaves, Antennas & Propagation, 2021
Herein, a rigorous derivation of an isosceles right‐angled triangular (IRT) metallic cavity is analysed. Then, the transverse field components in the IRT substrate‐integrated waveguide (SIW) cavity are derived, and the expression of the resonant ...
Junjie Zhang   +3 more
doaj   +1 more source

Yield-Constrained Optimization Design Using Polynomial Chaos for Microwave Filters

open access: yesIEEE Access, 2021
Yield optimization aims at finding microwave filter designs with high yield under fabrication tolerance. The electromagnetic (EM) simulation-based yield optimization methods are computationally expensive because a large number of EM simulations is ...
Zhen Zhang   +4 more
doaj   +1 more source

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