نتایج جستجو برای: bow tie antenna
تعداد نتایج: 55671 فیلتر نتایج به سال:
Using Surface Enhanced Raman Scattering (SERS), we report on intensity-dependent broadening in graphene-deposited broad-band antennas. The antenna gain curve includes both the incident frequency and some of the scattered mode frequencies. By comparing antennas with various gaps and types (bow-tie vs. diamond-shape antennas) we make the case that the line broadening did not originate from strain...
We propose a gold modified bow-tie plasmonic nano-antenna, which can be suitably used in combination with total internal reflection fluorescence microscopy. The plasmonic nano-antenna, supporting well-separated multiple resonances, not only concentrates the total internal reflection evanescent field at the deep subwavelength scale, but also enhances fluorescence emission by the Purcell effect. ...
A bow-tie slot antenna fed by a coplanar waveguide is designed for wideband operation for radar applications. The new design exhibits 40% bandwidth with center frequency around 1 1 GHz. One and two elements are designed analyzed and verification with measurements is presented.
This paper introduces a new concept of coplanar patch antenna (CPA), which consists of a bow-tie shaped patch surrounded by closely spaced ground conductor and a coplanar waveguide (CPW) feed line. This novel configuration is proposed for use as an element of a phased array antenna specifically designed for radar systems. The main design goal is to devise a patch antenna that operates at 10 GHz...
زمینه و هدف: بررسی ابیراهی‌های سطح قدامی قرنیه با توجه به الگوی نرمال توپوگرافی قرنیه در افراد کاندید جراحی‌های انکساری، حایز اهمیت است. در این مطالعه ابیراهی‌های سطح قدامی قرنیه در چشم‌های دارای الگوی نرمال توپوگرافی قرنیه به‌طور مقایسه‌ای بررسی گردید. روش بررسی: دراین مطالعه مقایسه‌ای، 165 چشم از 97 بیمار (30-20 ساله) که دارای الگوی نرمال توپوگرافی قرنیه بودند، مورد ارزیابی قرار گرفت. برای ...
Introduction: Risk assessment is a systematic and essential procedure to determine the effects, events, and consequences of human activities on perilous systems. This study aimed to identify the hazards and determine the total risk of various units of Ilam Gas Refinery. Materials & Methods: This descriptive-inferential study assessed the risks on 18 various units of Ilam Gas Refinery through...
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