Results 11 to 20 of about 46,335 (206)

Mechanical Tuning of Substrate Integrated Waveguide Filters [PDF]

open access: yesIEEE Transactions on Microwave Theory and Techniques, 2015
This paper presents a novel approach for tuning substrate integrated waveguide resonators, realized by placing an additional metallized via-hole on the waveguide cavity. The approach presented here can be applied as a trimming technique, as well as to develop filter designs with tunable center frequencies and tunable bandwidths. Three different filters
Mira, Fermin   +2 more
openaire   +5 more sources

Microstrip to Double Ridge Empty Substrate Integrated Waveguide Transitions Based on Exponential and Superelliptical Dielectric Taper

open access: yesIEEE Access, 2021
The Empty Substrate Integrated Waveguides (ESIW) maintain the advantages of the Substrate Integrated waveguide (SIW) (i.e. low-volume, low profile, lightweight, easy manufacturing, and integration in a planar circuit board), and present lower losses and ...
David Herraiz   +5 more
doaj   +1 more source

Broadband Right-Angle Rectangular Waveguide to Substrate Integrated Waveguide Transition with Distributed Impedance Matching Network

open access: yesApplied Sciences, 2019
A broadband right-angle rectangular waveguide to substrate integrated waveguide transition for hybrid RWG-SIW (rectangular waveguide–substrate integrated waveguide) feeding networks is presented.
Roberto Vincenti Gatti   +2 more
doaj   +1 more source

Millimeter Wave Substrate Integrated Waveguide Antennas: Design and Fabrication Analysis [PDF]

open access: yes, 2009
The paper presents a new concept in antenna design, whereby a photo-imageable thick-film process is used to integrate a waveguide antenna within a multilayer structure. This has yielded a very compact, high performance antenna working at high millimeter-
Batchelor, John C.   +4 more
core   +1 more source

The next generation textile antennas based on substrate integrated waveguide technology [PDF]

open access: yes, 2014
Textile antennas for body-worn applications have some very specific requirements and needs. From an electrical engineer's point of view, good radiation characteristics and impedance matching to the active electronics are important.
Agneessens, Sam   +4 more
core   +2 more sources

LOSS REDUCTION IN SUBSTRATE INTEGRATED WAVEGUIDE STRUCTURES [PDF]

open access: yesProgress In Electromagnetics Research C, 2014
A method for decreasing the loss in substrate integrated waveguide (SIW) structures is introduced. In this method, the dielectric substrate is partially removed. Accordingly, dielectric loss reduction has been explicated analytically. Its equivalence to the rectangular waveguide of solid walls which is partially fllled with dielectric has been ...
Mohammadi, Pejman, Demir, Şimşek
openaire   +2 more sources

Dual-band substrate integrated waveguide textile antenna with integrated solar harvester [PDF]

open access: yes, 2014
A dual-band wearable textile antenna based on substrate integrated waveguide technology is presented for operation in the [2.4-2.4835]-GHz Industrial, Scientific and Medical band and the [2.5-2.69]-GHz 4G LTE band 7.
Declercq, Frederick   +2 more
core   +1 more source

Waveguide coupling gratings for high-sensitivity biochemical sensors [PDF]

open access: yes, 1997
Grating coupling is now currently used in evanescent-wave biochemical sensors as a waveguide coupling element or as the sensing element. In most coupling cases of practical interest, the Rayleigh-Fourier method is valid, and leads to physically ...
Lyndin, N.M.   +3 more
core   +7 more sources

Mechanical Tuning of Substrate Integrated Waveguide Resonators [PDF]

open access: yesIEEE Microwave and Wireless Components Letters, 2012
This letter presents a novel approach for providing substrate-integrated waveguide tunable resonators by means of placing an additional metalized via-hole on the waveguide cavity. The via-hole contains an open-loop slot on the top metallic wall. The dimensions, position and orientation of the open-loop slot defines the tuning range. Fabrication of some
Mira, Fermín   +2 more
openaire   +6 more sources

Coupled Eighth-Mode Substrate Integrated Waveguide Antenna: Small and Wideband With High-Body Antenna Isolation

open access: yesIEEE Access, 2018
A novel antenna design for wideband operation is presented, consisting of a system of two coupled miniaturized eighth-mode resonant radiating cavities with a low-complexity feeding network. The design methodology relies on the virtual magnetic boundaries
Sam Agneessens
doaj   +1 more source

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