Results 91 to 100 of about 71,984 (299)
Multiple input radio receiver Patent [PDF]
, 1967 Radio receiver with array of independently steerable antennas for deep space ...
Schrader, J. H.
core +1 more source
Isotropic Chiral Objects With Zero Backscattering
, 2012 In this paper we study electrically small chiral objects with isotropic response and zero backscattering. A bi-isotropic sphere is used as a simple example and its zero-backscattering conditions are studied.
Karilainen, Antti O. +1 more
core +1 more source
Advanced Engineering Materials, EarlyView.It is shown that laser ablation pretreatment under oxygen‐free conditions enables copper–aluminium bonding at significantly lower deformation degrees and improved properties compared to mechanical brushing. Laser ablation further increases interface contact area and induces favourable residual stress states and microstructural compatibility ...
Khemais Barienti +11 more
wiley +1 more source
Half-Duplex or Full-Duplex Relaying: A Capacity Analysis under Self-Interference
, 2013 In this paper multi-antenna half-duplex and full-duplex relaying are compared from the perspective of achievable rates. Full-duplexing operation requires additional resources at the relay such as antennas and RF chains for self-interference cancellation.
Erkip, Elza +2 more
core +1 more source
Advanced Engineering Materials, EarlyView.A hierarchical porous copper current collector is fabricated via three‐dimensional printing combined with pressureless sintering to stabilize lithium metal anodes. The interconnected architecture lowers local current density, guides uniform Li deposition within pores, and suppresses dendrite growth.
Alok Kumar Mishra, Mukul Shukla
wiley +1 more source
Absolute gain measurement by the image method under mismatched condition [PDF]
Purcell's image method for measuring the absolute gain of an antenna is particularly attractive for small test antennas. The method is simple to use and utilizes only one antenna with a reflecting plane to provide an image for the receiving antenna ...
Baddour, Maurice F., Lee, Richard Q.
core +1 more source
America in Space - the First Decade. Linking Man and Spacecraft [PDF]
, 1968 NASA methods, systems, equipment, and facilities for information transfer between spacecraft and ...
Corliss, W. R.
core +1 more source
Receiving antenna electrodynamic model in terms of waveguide representation of HF field
Solar-Terrestrial Physics, 2018 The receiving antenna is an important part of a radio channel that requires electrodynamic approach in mathematical simulation of its characteristics. Since the invention of radio, and due to further theoretical studies of radio signal transmission, the ...
Khakhinov V.V.
doaj +1 more source
Advanced Engineering Materials, EarlyView.The presented study focuses on the fracture behaviour of carbon‐bonded magnesia MgO–C refractories, where environmentally friendly fructose, collagen and lignin serve as temporary binding agents. The partial substitution of the source material with recycled MgO–C reduces the fracture resistance, which can be counteracted by the additional introduction ...
Marc Neumann +6 more
wiley +1 more source
Balanced directional loop receiving antenna
Electronics Letters, 1991 Directional loop antennas have been used for some time for HF reception purposes. However, for stable performance they rely on a good ground connection. A modified form of such an antenna is described which has a balanced feed arrangement and thus does not suffer from the problems associated with the requirement for a solid ground connection.
P.V. Brennan, Y. Valverde
openaire +1 more source