نتایج جستجو برای: cylindrical antenna
تعداد نتایج: 69834 فیلتر نتایج به سال:
In this work, we present a numerical investigation of the properties Graphene based Nano Patch Antenna (GNPA) with triangular periodic arrangements Photonic Band Gap (PBG) insertion into substrate. proposed design, studied effect on radiation characteristics, such as return loss, bandwidth, gain, directivity, voltage standing wave ratio (VSWR), and pattern using Finite Integration Method (FIM)....
In this paper, a simple dual-band dual-polarized aperture stacked patch antenna with double sided notch is presented. This antenna is suitable for operation in telecommunication base stations. One of the bands covers the GSM band, while the other covers both DCS and UMTS bands. The proposed antenna shows good port decoupling of less than -30dB for dual linear polarization over its operating ban...
The results on cosmic rays detected by the gravitational antenna NAUTILUS have motivated an experiment (RAP) based on a suspended cylindrical bar, which is made of the same aluminum alloy as NAUTILUS and is exposed to a high energy electron beam. Mechanical vibrations originate from the local thermal expansion caused by warming up due to the energy lost by particles crossing the material. The a...
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