Results 11 to 20 of about 55,869 (299)
The eleven antenna: a compact low-profile decade bandwidth dual polarized feed for reflector antennas [PDF]
, 2006 A novel dual polarized ultrawide-band (UWB) feed with a decade bandwidth is presented for use in both single and dual reflector antennas. The feed has nearly constant beam width and 11 dBi directivity over at least a decade bandwidth.
Kildal, Per-Simon +2 more
core +1 more source
Compact triple‐broadband implantable antenna for multi‐functions in telemedicine
IET Microwaves, Antennas & Propagation, 2022 A compact implantable antenna is designed to operate in the Medical Implant Communication Services (MICS; 402–405 MHz) band, 915‐MHz Industrial, Scientific, and Medical (ISM; 902–928 MHz) band, and 2.4‐GHz ISM (2.4–2.48 GHz) band; via the triple bands ...
Yi Fan +5 more
doaj +1 more source
A novel broadband windmill‐shaped metasurface antenna with stable radiation patterns
IET Microwaves, Antennas & Propagation, 2023 A novel windmill‐shaped metasurface (MTS) structure is firstly presented and applied to realise broadband antennas with stable radiation patterns. Different from conventional square MTS structure, the proposed windmill‐shaped MTS structure is formed by ...
Dongxu Chen +5 more
doaj +1 more source
Conformal phased array with beam forming for airborne satellite communication [PDF]
, 2008 For enhanced communication on board of aircraft novel antenna systems with broadband satellite-based capabilities are required. The installation of such systems on board of aircraft requires the development of a very low-profile aircraft antenna, which ...
Heideman, R.G. +8 more
core +2 more sources
A study of water-mist recirculation system for filtration and cooling effect in the kitchen hood ventilation system [PDF]
, 2020 Water-mist spray system in several heavy-duty kitchen hood canopies are installed to efficiently control the high heat loads and grease emissions produced from the cooking process and for safety purposes.
Nor Salim, Nor Adrian
core +1 more source
Electronics Letters, 2006 A new class of reconfigurable antenna based on monopole structures containing liquid dielectrics is presented. It was determined that the operating principle of this class of antenna is essentially that of a dielectric resonator, where salt (in solution) modifies the dielectric properties. The resonator column height determined the operating frequency,
H. Fayad, P. Record
openaire +1 more source
IET Microwaves, Antennas & Propagation, 2023 A novel circularly polarised (CP) antenna design, termed differential mode (DM) and common mode (CM) design, is presented with equal‐amplitude in‐phase feed (EAIPF) in this article.
Yang Luo +3 more
doaj +1 more source
Concentrated Ground Plane Booster Antenna Technology for Multiband Operation in Handset Devices [PDF]
, 2014 The current demand in the handset antenna field requires multiband antennas due to the existence of multiple communication standards and the emergence of new ones.
Andujar, A. +4 more
core +6 more sources
Energies, 2018 The deployment of internet of things (IOT) devices in several applications is limited by their need of having batteries as a power source. This has led many researchers to make efforts on simultaneous wireless information and power transfer (SWIPT ...
Mehdi Shirichian +3 more
doaj +1 more source
A circuit-theoretic approach to the design of quadruple-mode broadband microstrip patch antennas [PDF]
, 2008 A novel method for the design of broadband patch antennas is described. The approach taken is to broadside couple two dual-mode patch antennas, resulting in a quad resonance antenna.
Abunjaileh, A.I. +2 more
core +1 more source