Results 91 to 100 of about 4,683 (209)

Implementation of an Ultra‐Low Profile High‐Purity OAM Generator

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
An ultra‐thin orbital angular momentum (OAM) generator fed by a radial substrate‐integrated waveguide is presented. By integrating a compact 8‐ways divider and a uniform circular array on two substrates, OAM modes with a purity of more than 93% were successfully excited while maintaining a profile height of only one‐tenth of a wavelength. ABSTRACT This
Songtao Peng, Youlei Pu
wiley   +1 more source

Small Footprint Multilayered Millimeter-Wave Antennas and Feeding Networks for Multi-Dimensional Scanning and High-Density Integrated Systems [PDF]

open access: yes, 2012
This paper overviews the state-of-the-art of substrate integrated waveguide (SIW) techniques in the design and realization of innovative low-cost, low-profile and low-loss (L3) millimeter-wave antenna elements, feeding networks and arrays for various ...
Djerafi, T.   +5 more
core   +1 more source

Full D‐Band Superstrate‐Enhanced Transition for Rectangular Waveguide‐to‐PCB Interfacing

open access: yesElectronics Letters, Volume 61, Issue 1, January/December 2025.
A transition from air‐filled rectangular waveguide (RWG) to substrate‐integrated waveguide (SIW) is proposed that covers the entire D‐band (110–170 GHz). Broadband operation is obtained by leveraging a resonant slot and an aperture‐coupled patch antenna‐in‐waveguide, while co‐optimisation with a dielectric‐loading superstrate matches both resonances to
Samuel Rimbaut   +3 more
wiley   +1 more source

A Metasurface-Enhanced Substrate-Integrated Waveguide Antenna

open access: yesIEEE Access
The design, manufacture and characterization of a slotted waveguide antenna using substrate-integrated waveguide (SIW) technology combined with a metasurface are described in this paper.
Javier Chocarro   +4 more
doaj   +1 more source

Design of RF front-end system-in-package module based on organic substrate process

open access: yesDiscover Applied Sciences
This paper proposes a novel highly integrated millimeter wave(MMW) transmission front-end system based on organic substrate technology. The system consists of substrate integrated waveguide(SIW) filter, power amplifier, mixer, lower noise amplifier and ...
Shouwei Chen   +3 more
doaj   +1 more source

Design and Validation of Microstrip Gap Waveguides and Their Transitions to Rectangular Waveguide, for Millimeter-Wave Applications [PDF]

open access: yes, 2015
The paper describes the design methodology, experimental validation and practical considerations of two millimeterwave wideband vertical transitions from two gap waveguide versions (inverted microstrip gap waveguide, and microstrip packaged by using gap ...
Algaba Brazález, Astrid   +4 more
core   +1 more source

A SIW Antipodal Vivaldi Array Antenna Design

open access: yesInternational Journal of Antennas and Propagation, 2016
A kind of compact SIW (substrate integrated waveguide) Vivaldi array antenna is proposed and analyzed. The antenna consisted of 4 Vivaldi structure radiation elements fed by an equal power divider with SIW technology. The radiation element is composed of
Ying Suo, Wei Li, Jianzhong Chen
doaj   +1 more source

Mode Composite Coplanar Waveguide

open access: yesIEEE Access, 2019
In this paper, a mode composite coplanar waveguide (MCCPW) is proposed and studied. The MCCPW can be regarded as a combination of a quasi-coplanar waveguide and a substrate integrated waveguide (SIW).
Yihong Su   +3 more
doaj   +1 more source

Robust, wearable, on-body antenna relying on half mode substrate integrated waveguide techniques [PDF]

open access: yes, 2014
A compact, robust, wearable antenna for body-worn applications in the 2.4 GHz Industrial Medical and Scientific band is designed, fabricated and tested.
Agneessens, Sam   +3 more
core   +2 more sources

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