Results 71 to 80 of about 583,687 (273)
Programmable Chiral Radiation via Spin‐Decoupled Metasurface with Integrated Compound Phases
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
An ohmic RF MEMS switch for reconfigurable microstrip array antennas built on PCB [PDF]
This paper presents the analysis, design and simulation of an ohmic RF MEMS switch specified for reconfigurable microstrip array antennas built on PCB via an integrated monolithic technology.
Charalampidis, N +6 more
core
Wideband and UWB antennas for wireless applications. A comprehensive review [PDF]
A comprehensive review concerning the geometry, the manufacturing technologies, the materials, and the numerical techniques, adopted for the analysis and design of wideband and ultrawideband (UWB) antennas for wireless applications, is presented. Planar,
Cicchetti, Renato +2 more
core +3 more sources
Pneumatically‐Actuated Liquid Metal‐Based Frequency Reconfigurable Antenna
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
Left-Handed Metamaterial (LHM) Structure Stacked on a Two-Element Microstrip Antenna Array
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
Compact and Broadband Microstrip-Line-Fed Modified Rhombus Slot Antenna [PDF]
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
A Scalable and Integrated Reconfigurable Intelligent Surface
A scalable X‐band reconfigurable intelligent surface is presented using one‐bit phase‐tunable unit cells with integrated FPGA control. The RIS supports fast, high‐speed reconfiguration through WiFi, LAN, and USB interfaces and can be scaled to multiple tiles. The design achieves over 20 dBi broadside gain and reliable 2D beam steering in both elevation
Zaid Akram +6 more
wiley +1 more source
Some Recent Developments of Microstrip Antenna
Although the microstrip antenna has been extensively studied in the past few decades as one of the standard planar antennas, it still has a huge potential for further developments. The paper suggests three areas for further research based on our previous
Yong Liu +10 more
doaj +1 more source
Antennas for mobile satellite communications [PDF]
A NASA sponsored program, called the Mobile Satellite (MSAT) system, has prompted the development of several innovative antennas at L-band frequencies. In the space segment of the MSAT system, an efficient, light weight, circularly polarized microstrip ...
Huang, John
core +1 more source

