Results 41 to 50 of about 179 (156)
Biconical antennas with unequal cone angles [PDF]
IEEE Transactions on Antennas and Propagation, 1998 The problem of radiation and reception of electromagnetic waves associated with a spherically capped biconical antenna having unequal cone angles /spl psi//sub 1/ and /spl psi//sub 2/ is investigated. Both cones that comprise a bicone are excited symmetrically at the apices by a voltage source so that the only higher order modes are TM.
Samaddar, S. N., Mokole, E. L.
openaire +1 more source
Approximate Analysis on a Wide Angle Biconical Antenna
Tongxin xuebao, 1984 In this paper, the broad band performance of a wideangle biconical antenna has been analysed and demonstrated. First, the formulas by which its pattern and input impedance can be calculated are developed.
Lin Changlu
doaj +2 more sources
International Journal of Antennas and Propagation, Volume 2026, Issue 1, 2026.This study proposes measurement results of shadowing loss in a four‐story office building. Shadowing loss includes building entry, exit, indoor, and diffraction losses. Data were collected by adopting a local averaging stage loaded with an elevated work platform for up to two stories.
Dong-Woo Kim, Soon-Soo Oh, Shikha Binwal
wiley +1 more source
East European Journal of PhysicsA numerical-analytical solution of a problem concerning the current distribution and input characteristics of asymmetric biconical dipole with distributed surface impedance and arbitrary excitation and derived in the thin-wire approximation.
Mikhail V. Nesterenko +2 more
doaj +1 more source
Ancient and historical cooking pots and food: an eternal communion. A topical review
Archaeometry, Volume 67, Issue 1, Page 219-234, February 2025.Abstract This contribution provides a topical view at and review of traditional clay‐based utilitarian cooking pots that were used for millennia to prepare, serve, display, and distribute foodstuff. Key mechanical and thermal properties of ceramic cooking vessels will be discussed and strategies of property optimization outlined.
Robert B. Heimann
wiley +1 more source
Review of conceptual and empirical approaches to characterize infiltration
Vadose Zone Journal, Volume 24, Issue 1, January/February 2025.Abstract Infiltration regulates the movement and storage of water at the soil–atmosphere interface and is, therefore, a key component of many related physical and biogeochemical processes. Numerous studies have examined infiltration over the past two centuries.
Christelle Basset +8 more
wiley +1 more source
Intelligent vehicle scheduling in open-pit mines based on 5G antenna and improved Dijkstra algorithm
Gong-kuang zidonghuaComplex terrains such as deep pits and high slopes in open-pit mines cause physical signal blockage and multipath fading. Furthermore, existing path-planning algorithms tend to result in unstable vehicle trajectories or congestion due to local optima ...
CHEN Xiaolei, CHEN Liufang, WANG Jie
doaj +1 more source
Path loss measurement and modeling of 5G network in emergency indoor stairwell at 3.7 and 28 GHz. [PDF]
PLoS One, 2023 Samad MA, Choi DY, Choi K.
europepmc +1 more source
The Exposure to 2.45 GHz Electromagnetic Radiation Induced Different Cell Responses in Neuron-like Cells and Peripheral Blood Mononuclear Cells. [PDF]
Biomedicines, 2023 Bertuccio MP +4 more
europepmc +1 more source
Wideband Omnidirectional Antenna Featuring Small Azimuthal Gain Variation. [PDF]
Micromachines (Basel), 2023 Zhang H +5 more
europepmc +1 more source