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In order to study the influence on the statistical distribution characteristic of dynamic radar cross section (RCS) from aircraft flight speed, firstly through analyzing aircraft aerodynamic, setting track model, calculating attitude angle and electromagnetic simulation, the three groups of dynamic RCS sequence were obtained under different flight speed. And the fitting curves of dynamic RCS sequence...
A compact and planar dual band antenna for Bluetooth and ultra-wideband (UWB) application is presented. The antenna exhibits a dual band operation covering Bluetooth (2.4–2.484 GHz) and UWB (3.1–10.6 GHz) frequency bands. It is composed of a semi-bevelled-rectangle patch and an L-shaped strip and fed by a microstrip line. The antenna is built on a FR4 substrate with only 21×40 mm2 surface area. Details...
A novel planar scissors monopole antenna for ultrawideband (UWB) communication is presented in this paper. Printed on a dielectric substrate and fed by a 50 microstrip line, a planar scissors monopole has been demonstrated to provide an ultra-wide bandwidth with voltage standing wave ratio (VSWR) less than 2 with satisfactory radiation properties. Details of the antenna design and measured results...
Sequence analysis of D1/D2 region of 26S rDNA was used for identification of different yeasts isolated from food-borne material. Then, their aromas compounds were detected and analyzed by SPME-GC-MS, another biology information technology. 12 yeast strains were grouped in 7 species belonging to 5 genera as follows: Saccharomyces cerevisiae, Torulaspora delbrueckii, Kluyveromyces marxianus, Pichia...
Development of a new nanosecond monocycle pulse generator with pulse forming network is presented along with detailed design and analysis. The developed pulse forming network is simple, compact, and can be realized using planar circuit. Formation of the impulse is a classical technique using the delay-line principle and implemented on microstrip structures. The pulse-shaping network employs a microstrip...
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