Results 71 to 80 of about 4,418 (227)

Low‐loss compact diplexer based on complementary spiral resonators

open access: yesMicrowave and Optical Technology Letters, Volume 66, Issue 6, June 2024.
Abstract The article describes a novel low‐loss microwave diplexer based on compact planar filtering elements. These are composed of spiral resonators and etched directly onto the signal layer. Furthermore, their design and optimization prove to be easy, and their native high‐pass/low‐pass characteristics are perfectly suited for assembling a diplexer.
Giacomo Giannetti, Stefano Maddio
wiley   +1 more source

Coupled Resonator Diplexer without External Junctions

open access: yesJournal of Electromagnetic Analysis and Applications, 2011
A coupled resonator diplexer has been designed, fabricated, and tested. The design is based on synthesis of coupling matrix of a 3-port coupled resonator circuit using optimization. Unlike conventional diplexers, the presented diplexer configuration does not include any separate junctions for distribution of energy. The diplexer has been implemented at
Skaik, Talal F., Lancaster, Michael
openaire   +2 more sources

Frequency Coded Chipless RFID Tag using Spurline Resonators [PDF]

open access: yes, 2014
A novel compact chipless RFID tag using spurline resonators is discussed in this paper. The detection of the tag's ID is using the spectral signature of a spurline resonator circuit.
Dinesh, R.   +4 more
core   +1 more source

Development of a high-performance W-band duplexer for plasma diagnosis using a single band with dual circular polarization [PDF]

open access: yes, 2019
Discrepancia entre la información que aparece en el artículo que indica que el copyright es de Elsevier, y la información que aparece en la página de la revista y en el Copyright Clearance Center que indican © 2019 The Authors. Published by Elsevier B.V.
Leal Sevillano, Carlos A.   +3 more
core   +2 more sources

Frequency selective surface with a bistable auxetic geometry

open access: yesElectronics Letters, Volume 60, Issue 12, June 2024.
Two bistable auxetic array geometries have been considered as FSS arrays of conducting elements. A square base form auxetic array with a combination of vertical and horizontal IT‐poles and a triangular one with three legged elements. Both of these have exhibited FSS reflection and transmission band characteristics with close band ratios.
Yiannis Vardaxoglou   +1 more
wiley   +1 more source

Pseudo noise code and data transmission method and apparatus [PDF]

open access: yes, 1977
Pseudo noise ranging codes, having a predetermined chipping rate, and a pair of binary data sources, each having a bit rate no greater than one tenth the chipping rate, quadriphase, digitally modulate a suppressed carrier wave having a first frequency ...
Deerkoski, L. F.
core   +1 more source

Surface Air‐Pressure Measurements From Space Using Differential Absorption Radar on the Right Wing of the 60 GHz Oxygen Band

open access: yesEarth and Space Science, Volume 11, Issue 4, April 2024.
Abstract Surface air pressure is one of the most important parameters used in Numerical Weather Prediction (NWP) models. Although it has been measured using weather stations on the ground for many decades, the numbers of measurements are sparse and concentrated on land. Few measurements from buoys and ships are available over ocean. Global measurements
A. Battaglia   +4 more
wiley   +1 more source

Wavelength switched hybrid TDMA/WDM (TWDM) PON: a flexible next-generation optical access solution [PDF]

open access: yes, 2012
In this paper, we propose the system concepts of a next-generation wavelength switched hybrid time division multiple access and wavelength division multiplexing (TWDM) passive optical network (PON) architecture. In this architecture, wavelength selective
Colle, Didier   +4 more
core   +2 more sources

An Efficient Framework For Fast Computer Aided Design of Microwave Circuits Based on the Higher-Order 3D Finite-Element Method [PDF]

open access: yes, 2014
In this paper, an efficient computational framework for the full-wave design by optimization of complex microwave passive devices, such as antennas, filters, and multiplexers, is described.
Balewski, L., Lamecki, A., Mrozowski, M.
core   +1 more source

A Self-Packaged SICL-Based Integrated Antenna-Diplexer System Featuring High Isolation and Selectivity

open access: yesIEEE Open Journal of Antennas and Propagation
This article proposes a new design procedure for the development of a highly selective diplexer and its integration with a high-gain antenna. The proposed diplexer conceived by two SICL-based bandpass filters and an impedance matching network exhibits ...
Satya Krishna Idury   +2 more
doaj   +1 more source

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