Results 11 to 20 of about 80,948 (300)
Achieving accurate FTIR measurements on high performance bandpass filters [PDF]
, 1998 The sources of ordinate error in FTIR spectrometers are reviewed with reference to measuring small out-of-band features in the spectra of bandpass filters. Procedures for identifying instrumental artefacts are described.
Deeley, C. +3 more
core +3 more sources
Improved Designs for Highly Integrated Lowpass–Bandpass Filters
IEEE Access, 2023 This study presents three dual-band lowpass–bandpass filters. The first handles lowpass and bandpass bands through its fifth-order and third-order Chebyshev filter responses, respectively.
Pu-Hua Deng +3 more
doaj +1 more source
IEEE Open Journal of Antennas and Propagation, 2020 Functional post-wall waveguides and waveguide based compact passive circuits - namely bandpass filters - that are formed by introducing additional metallic or dielectric posts inside the post-wall waveguide are analyzed.
Arkadi Akopian +8 more
doaj +1 more source
Design and realization of microstrip filters with new defected ground structure (DGS)
Engineering Science and Technology, an International Journal, 2017 In this paper, various microstrip filters, such as bandpass (narrow/wideband) filters, dual band bandpass filter and lowpass filters, are designed with new metal strips loaded defected ground structure (DGS).
Arjun Kumar, M.V. Kartikeyan
doaj +1 more source
Parametrically enhanced bandpass filters
IET Microwaves, Antennas & Propagation, 2021 This paper proposes a technique to enhance the quality factor (Q) of a resonator, which can then be used to realise bandpass filters (BPFs) with reduced insertion loss (IL) and improved passband selectivity.
Lap K. Yeung, Xiating Zou, Yuanxun Wang
doaj +1 more source
Oscillation-based DFT for Second-order Bandpass OTA-C Filters [PDF]
, 2017 This document is the Accepted Manuscript version. Under embargo until 6 September 2018. The final publication is available at Springer via https://doi.org/10.1007/s00034-017-0648-9.This paper describes a design for testability technique for second-order ...
Hasan, Masood ul +2 more
core +2 more sources
Near millimeter wave bandpass filters [PDF]
Applied Optics, 1981 The properties of bandpass filters for broadband photometry are reported in the 3-12-cm(-1) frequency range. The filters are based on a combination of capacitive grids deposited on thick Mylar substrates and are designed to have very high out-of-band rejection.
T, Timusk, P L, Richards
openaire +2 more sources
Possibility of applying memristors in microwave filters [PDF]
Tehnika, 2016 This paper discusses the possibility of applying memristors in microwave passive circuits such as filters. Basic information about memristor like theoretical assumptions, realisation, structure, and physical properties of the component are presented.
Marković Ivo Lj. +2 more
doaj +1 more source
Millimeter-Wave Lumped Element Superconducting Bandpass Filters for Multi-Color Imaging [PDF]
, 2009 The opacity due to water vapor in the Earth's atmosphere obscures portions of the sub-THz spectrum (mm/sub-mm wavelengths) to ground based astronomical observation.
Day, Peter K. +5 more
core +2 more sources
Global stability, limit cycles and chaotic behaviors of second order interpolative sigma delta modulators [PDF]
, 2011 It is well known that second order lowpass interpolative sigma delta modulators (SDMs) may suffer from instability and limit cycle problems when the magnitudes of the input signals are at large and at intermediate levels, respectively.
Ho, Yuk-Fan +3 more
core +1 more source