نتایج جستجو برای: dielectric loaded antenna
تعداد نتایج: 123722 فیلتر نتایج به سال:
This paper proposes a novel wideband circularly polarized (CP) dielectric resonator antenna (DRA) loaded with strips. The CP DRA comprises circular DR, two pairs of driven L-like DR strips different lengths, and square ground-plane. To couple the electromagnetic energy to an orthogonal cross-slot is used, stepped microstrip-line also used adjust impedance matching. Influenced by concept deforme...
In this paper we present a new slot antenna with an embedded temperature sensor for remote sensing in harsh environment applications. When the antenna is illuminated with a plane wave it returns a signal. The returned signal’s frequency is modulated by the loaded capacitance formed by an array of MEMS bimorph (metal-dielectric) cantilevers. The MEMS cantilevers deflect downwards when the temper...
In order to improve measurement efficiency in electromagnetic test facilities (compact range or near-field range), testing probes are required to have ultra-wideband (UWB) radiation characteristics, dual-polarization capability, and interchangeable Eand H-plane farfield patterns. In this context, we propose a new type of UWB antenna that satisfies these requirements in the frequency range of 4 ...
Objective of this study is to enhance radius of curvature of return loss, input impedance & explore SWR and radiation pattern. Hollow CDRA has been used instead of single-element CDRA to achieve the above mentioned goal. The impedance bandwidth of a high permittivity hollow cylindrical dielectric resonator antenna excited by micro-strip lines was significantly improved by modifying the feed geo...
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