Results 71 to 80 of about 70,803 (277)

Mixer-Duplexer-Antenna Leaky-Wave System Based on Periodic Space-Time Modulation

open access: yes, 2016
We present a mixer-duplexer-antenna leaky-wave system based on periodic space-time modulation. This system operates as a full transceiver, where the upconversion and downconversion mixing operations are accomplished via space-time transitions, the ...
Caloz, Christophe, Taravati, Sajjad
core   +1 more source

Double U-slots patch antenna for tri-band wireless systems [PDF]

open access: yes, 2010
File shown is the pre-print version of the published paper, with the title "Connected u-slots pathch antenna for WiMAX applications"ABSTRACT: A compact microstrip patch antenna with two U-slots shape is presented.
AbuTarboush, H.F.   +7 more
core   +1 more source

Dual Radial-Resonant Wide Beamwidth Circular Sector Microstrip Patch Antennas [PDF]

open access: bronze, 2023
Xiao‐Hui Mao   +4 more
openalex   +1 more source

Environmental and Ecological Monitoring with Biodegradable Technologies

open access: yesAdvanced Science, Volume 13, Issue 4, 19 January 2026.
This review examines the development and application of wireless biodegradable sensors for environmental monitoring. It explores (bio)degradable materials, their degradation mechanisms in various environments, and non‐toxic fabrication techniques. Additionally, it addresses scalable production and sustainable powering solutions, emphasizing the high ...
Mohammad Javad Bathaei   +7 more
wiley   +1 more source

Left-Handed Metamaterial (LHM) Structure Stacked on a Two-Element Microstrip Antenna Array

open access: yesInternational Journal of Technology, 2016
Antenna can be one of the largest components in a wireless device; therefore antenna miniaturization can reduce the overall size of wireless devices. One method used to reduce the element size of an antenna is by using meta material structures.
Fitri Yuli Zulkifli   +3 more
doaj   +1 more source

Programmable Chiral Radiation via Spin‐Decoupled Metasurface with Integrated Compound Phases

open access: yesAdvanced Science, Volume 13, Issue 1, 5 January 2026.
A programmable spin‐decoupled metasurface integrating propagation and geometric phases enables high‐purity chiral radiation with reconfigurable emission direction. Spin‐selective radiators combined with a compound phase decoupling strategy suppress undesired components, while embedded PIN diodes allow real‐time directional control.
Lu Song   +8 more
wiley   +1 more source

Investigation on Metamaterial Antenna for Terahertz Applications

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications
In this paper, the metamaterial based rectangular microstrip patch antenna is proposed and designed for THz applications. The circular split ring resonator is implemented as metamaterial. By incorporating metamaterial in the conventional microstrip patch
Amalraj Taksala Devapriya   +1 more
doaj   +1 more source

Multi-band antenna for different wireless applications [PDF]

open access: yes, 2009
A small multi-band compact antenna is presented. The antenna is designed on Roger RT/duroid 5880 with dielectric constant 2.2, multi-band operations is achieved by inserting a slot on the top patch. The antenna has wide impedance bandwidth at 1.2, 1.6, 2.
AbuTarboush, HF   +2 more
core   +1 more source

Pneumatically‐Actuated Liquid Metal‐Based Frequency Reconfigurable Antenna

open access: yesAdvanced Science, Volume 13, Issue 5, 27 January 2026.
A look at a flexible, frequency‐tuning antenna A Soft Solution: Introducing a new antenna design made with liquid metal composites. A Full Package: Combining flexible antennas with pneumatic actuators. End‐to‐End Control: Automatic reconfiguration according to signal strength.
Yiwen Song   +6 more
wiley   +1 more source

RHOMBUS SHAPED RECONFIGURABLE MICROSTRIP ANTENNA FOR CDMA WIRELESS APPLICATIONS [PDF]

open access: yesICTACT Journal on Communication Technology, 2015
Rhombus Shaped Reconfigurable microstrip antenna is designed to operate at 1.74GHz. The proposed antenna is a Rhombus shaped microstrip antenna which gives a good size reduction with good impedance bandwidth in terms of with and without capacitor.
K. Madhusudhana, S. Jagadeesha
doaj  

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