Results 51 to 60 of about 70,803 (277)
International Journal for Research in Applied Science and Engineering Technology, 2022 Abstract: Performance parameters like return loss, voltage standing wave ratio, gain, and radiation pattern are calculated. Design frequency is 2.4 GHz, the copper-coated substrate material is RT Duroid 5880 having dielectric constant ε=2.2 and thickness is 1.6 mm. The feeding technique, employed in Microstrip patch Antenna is Microstrip 50 Ω feed line.
Pradeep Kumar +2 more
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Advanced Electronic Materials, EarlyView.This work shows the first proof‐of‐concept for fully self‐healing and stretchable coplanar waveguide (CPW) transmission line using printable electrically conductive liquid metal elastomer. RF performance was evaluated in frequency ranging from 1 to 6 GHz under uniaxial tensile strain up to 100%, after self‐healing, and for 1000 cyclic stretch‐release ...
Ahmed Albeltagi +6 more
wiley +1 more source
A new impedance matching method for an ultra-wide band and dual circularly polarised feed [PDF]
, 2016 In traditional antenna design, metal components are not placed in the central part of the antenna as they change the characteristics of near field radiation.
Chen, Zhi Jun +6 more
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Small Microstrip Patch Antennas
Electronics Letters, 1995 As stated in Chapter 1, one of the many advantages of microstrip patch technology over its competitors is its low profile and hence small volume. Another key advantage of this printed antenna is the relative ease in which it can be connected to the feed network, as was highlighted in Chapter 2.
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Precise regulation of preoxidation time and carbonization temperature in biomass napkin‐derived hard carbon generates abundant closed pores and ultramicropores, significantly enhancing the capacity in the low‐potential plateau region (the high plateau capacity of 266 mAh g−1) and thereby achieving highly reversible sodium‐ion storage (395 mAh g−1 at 30
Haoran Wang +4 more
wiley +1 more source
Design of a dual linear polarization antenna using split ring resonators at X-band [PDF]
Advances in Radio Science, 2017 Dual linear polarization microstrip antenna configurations are very suitable for high-performance satellites, wireless communication and radar applications. This paper presents a new method to improve the co-cross polarization discrimination (XPD) for
S. Ahmed, S. Ahmed, M. Chandra
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Low-noise 1 THz niobium superconducting tunnel junction mixer with a normal metal tuning circuit [PDF]
, 1996 We describe a 1 THz quasioptical SIS mixer which uses a twin-slot antenna, an antireflection-coated silicon hyperhemispherical lens, Nb/Al-oxide/Nb tunnel junctions, and an aluminum normal-metal tuning circuit in a two-junction configuration.
Bin, M. +4 more
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ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.The structure, properties, preparation methods, and characterization techniques of BP. As a typical 2D layered material, black phosphorus (BP) demonstrates exceptional promise in various fields, particularly in energy storage for alkali metal‐ion batteries. However, its distinctive structure and properties, together with the compositional complexity of
Yunqing Wang +7 more
wiley +1 more source
Rotor: Jurnal Ilmiah Teknik Mesin, 2016 Radar SSR (Secondary Surveillance Radar) is an equipment to detect and determine the position and target data around him actively, where the plane took active if it receives the RF signal emitted secondary radar.
Arif Fahmi, Dodi Setiabudi
doaj
Planar microstrip YAGI antenna array [PDF]
, 1993 A directional microstrip antenna includes a driven patch surrounded by an isolated reflector and one or more coplanar directors, all separated from a ground plane on the order of 0.1 wavelength or less to provide end fire beam directivity without ...
Huang, John
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