Results 51 to 60 of about 11,368 (233)
Electrically Small Microstrip Antenna Based on Magnetodielectric Materials
Journal of Telecommunications and Information Technology, 2022 An electrically small microstrip patch antenna based on high permittivity dielectric and magnetodielectric materials (MDM) is investigated in this paper.
Ararat Stepanyan +2 more
doaj +1 more source
Metasurface‐Enabled Active‐Like Passive Radar
Advanced Science, EarlyView.A programmable space‐time‐coding metasurface embeds distinct spatiotemporal tags into ambient wireless signals, allowing passive radar to operate in an active‐like manner. By enabling code‐correlated reconstruction under interference, the approach supports robust real‐time UAV tracking in complex environments and points to intelligent, low‐power ...
Mingyi Li +7 more
wiley +1 more source
Analysis and control of harmonic radiation from active integrated oscillator antennas [PDF]
, 2002 Harmonic radiation from microstrip patch oscillators is examined experimentally and theoretically using both a single and dual parallel-tuned circuit Van der Pol oscillator model.
Buesnal, GR +5 more
core +1 more source
Advanced Electronic Materials, EarlyView.This paper reviews the physics of liquid metals in RF devices, including the influence of mechanical strain on resonance as well as fabrication methods and strategies for designing tunable and strain‐tolerant inductors, capacitors, and antennas.
Md Saifur Rahman, William J. Scheideler
wiley +1 more source
Multimode and Multiband Microstrip Antennas [PDF]
, 2007 This thesis describes original work on the broadband and multiband matching of microstrip patch antennas. Microstrip patch antennas suffer from many constraints on their performance. One major restriction is their narrow impedance bandwidth.
Abunjaileh, Alaa Ibrahim
core
Wideband slotted patch antennas using EBG structures
, 2010 Copyright @ 2010 IEEEA slotted microstrip patch antenna is designed with Electromagnetic Band gap (EBG) structures. The performance parameters of the presented antenna are then compared with the conventional patch antenna.
AbuTarboush, HF +7 more
core +1 more source
International Journal of Antennas and Propagation, 2013 The proposed antenna is a circular microstrip structure excited by four feeds and suspended with artificial magnetic conductors (AMCs). The multifeed circular microstrip antennas can generate a high circularly polarized performance by using a different ...
Sanchai Eardprab +2 more
doaj +1 more source
Terahertz Microstrip Patch Antennas For The Surveillance Applications
Kurdistan Journal of Applied Research, 2020 This paper presents a new design of the microstrip patch antenna operated at the terahertz frequencies (700-850 GHz). The conventional microstrip patch antenna dimensions shrink to a few microns when operating at such terahertz frequencies.
Rashad Hassan Mahmud
doaj +1 more source
High-Gain Millimeter-Wave Patch Array Antenna for Unmanned Aerial Vehicle Application
Sensors, 2021 A high-gain millimeter-wave patch array antenna is presented for unmanned aerial vehicles (UAVs). For the large-scale patch array antenna, microstrip lines and higher-mode surface wave radiations contribute enormously to the antenna loss, especially at ...
Kyei Anim, Jung-Nam Lee, Young-Bae Jung
doaj +1 more source
Recent Advances in Programmable Metasurfaces and Meta‐Devices
Advanced Electronic Materials, EarlyView.Programmable metasurfaces enable various novel functionalities by dynamically tuning electromagnetic wavefronts. This article provides a comprehensive review of recent advances in microwave and terahertz programmable metasurfaces, covering electrical, thermal, optical, and mechanical control mechanisms.
Linda Shao +4 more
wiley +1 more source