Results 51 to 60 of about 61,993 (309)

Compact and Broadband Microstrip-Line-Fed Modified Rhombus Slot Antenna [PDF]

open access: yes, 2013
The printed microstrip-line-fed broadband rhombus slot antenna is investigated in this paper. With the use of the offset microstrip feed line and the corner-truncated protruded ground plane, the bandwidth enhancement and the slot size reduction for the ...
Jan, J. Y., Pan, C. Y., Wang, L. C.
core   +1 more source

Bandwidth enhancement for microstrip patch antenna using stacked patch and slot [PDF]

open access: yes, 2009
Small size wideband microstrip patch antenna with slot in ground plane and stacked patch fed through microstrip line is presented. By inserting slot on ground plane and stacked patch supported by wall, the bandwidth can improve up to 25% without ...
AbuTarboush, HF   +2 more
core   +2 more sources

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

open access: yesAdvanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source

Performance improvement of slot antenna with metamaterial for modern wireless communication

open access: yesResults in Engineering
A slot antenna has been widely used for multifunction in modern wireless communication technologies such as WLAN, WiMAX, IoT, and GSM. Generally, slot antennas can operate in wideband.
Maitree Tamma   +4 more
doaj   +1 more source

Frequency Reconfigurable Circular Patch Antenna with an Arc-Shaped Slot Ground Controlled by PIN Diodes

open access: yesInternational Journal of Antennas and Propagation, 2017
In this paper, a compact frequency reconfigurable circular patch antenna with an arc-shaped slot loaded in the ground layer is proposed for multiband wireless communication applications.
Yao Chen   +6 more
doaj   +1 more source

Planar Slot-Patch Antenna [PDF]

open access: yes31st European Microwave Conference, 2001, 2001
This paper discusses investigations of leaky wave radiation from the slotline made on a low permittivity substrate. New findings on the field distribution of the space leaky wave propagating on a slotline with a wide slot are presented. The design of the antenna and its measured parameters are introduced, along with practical experience acquired ...
Jan Zehentner   +3 more
openaire   +1 more source

Turnstile slot antenna [PDF]

open access: yes, 1974
A turnstile slot antenna is disclosed, the antenna being for and integral with a spacecraft having a substantially cylindrical body portion. The antenna comprises a circumferential slot about the periphery of the spacecraft body portion with an annular ...
Munson, R. E.
core   +1 more source

Multifunctional Bio‐Based Packaging for Perishable Foods: Structural Design, Scalable Fabrication, and Versatile Applications

open access: yesAdvanced Materials, EarlyView.
An overview of design principles and scalable fabrication strategies for multifunctional bio‐based packaging. Radiative cooling films, modified‐atmosphere films/membranes, active antimicrobial/antioxidant platforms, intelligent optical/electrochemical labels, and superhydrophobic surfaces are co‐engineered from material chemistry to mesoscale structure
Lei Zhang   +6 more
wiley   +1 more source

Rectangular Slot Array Antenna

open access: yesApplied Computational Electromagnetics Society, 2020
Slot antenna elements are quite popular for use in flat-panel arrays, due to their compactness and relatively large bandwidth. According to Babinet’s Principle, slots and dipoles are duals in performance. Therefore, a vertically placed slot is horizontally polarized and a horizontally placed slot is vertically polarized.
Elvis J. Trinidad Garcia   +2 more
openaire   +1 more source

A dual-polarized quasi-optical SIS mixer at 550 GHz [PDF]

open access: yes, 2000
In this paper, we describe the design, fabrication, and the performance of a low-noise dual-polarized quasi-optical superconductor-insulator-superconductor (SIS) mixer at 550 GHz.
Chattopadhyay, Goutam   +3 more
core   +1 more source

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