نتایج جستجو برای: two band antennas

تعداد نتایج: 2544716  

2012
Diane TITZ Fahd BEN ABDELJELIL Sébastien JAN Fabien FERRERO Cyril LUXEY Patrice BRACHAT Gilles JACQUEMOD

In this paper, we present the design and the measurement of two antennas realized on a 130nm CMOS process. They both radiate in the 60 GHz band and are dedicated to Wireless Personal Area Network (WPAN) applications. The antennas are manufactured within the frame of a multi-wafer project with several surrounding microelectronic circuits. The first antenna is an Inverted-F antenna (IFA). It has ...

2012
Ignacio Llatser Christian Kremers Albert Cabellos-Aparicio Eduard Alarcón Dmitry N. Chigrin

The scalability of the resonant frequency in graphene-based nano-antennas (graphennas) and metallic nanoantennas as a function of their length is analyzed. The antenna resonances are obtained by combining the dispersion relation in free-standing graphene and gold layers, respectively, with the resonance condition. Graphennas are found to have a better scalability in terms of their resonant freq...

2006
Pedro Luis Carro Jesus de Mingo

Two dual-printed dipole antennas for WLAN applications operating in the 802.11 a/b/g (2.4-2.5 Ghz and 4.9-5.875 GHz) frequency bands are presented. Genetic Algorithm optimization (GA) is applied first, to a classical dual band printed dipole antenna schema. Later on, a pre-fractal technique is proposed on the larger strip and electromagnetic parameters are re-optimized to achieve a more compact...

2011
J. Sosa-Pedroza E. Garduño-Nolasco F. Martinez-Zúñiga M. Enciso

We present design results of two cases of Ultra Wide Band (UWB) quasi circular patch antennas, one with coplanar feeding (CPW) and the other one with microstrip feeding. Both antennas are an evolution from a circular patch structure softening the edges to improve the antenna performance, agreeing with the theory proposed Kraus. After the evolution there were improvements concerning reflection c...

2013
Emad Shehab Ahmed

Microstrip fed inset patch antennas embedded in planar and cylindrically curved surfaces are introduced to be used in Body Area Networks (BANs) presented. These antennas are designed as wearable antennas for industrial, scientific and medical (ISM) band wireless communication networking. The proposed antennas consist of 50 Ω microstrip line feeding inset patch printed on the front face of diele...

Journal: :Applied Computational Electromagnetics Society Journal 2023

Three types of quad-band millimetric-wave two-port MIMO antenna systems are proposed for the forthcoming generations mobile handsets. A novel printed is introduced to be single element antennas. It shown that antennas capable producing both spatial and polarization diversities enhance performance communications. Two configurations co-polarized provide diversity, whereas a cross-polarized produc...

2016
T. D. Drysdale

Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of materials please consult the policies page. We demonstrate that diode-switching can be used to introduce frequency agility into antennas produced by thermal transfer printing. Our particular example ...

2016
T. D. Drysdale

Copyright and Moral Rights for the articles on this site are retained by the individual authors and/or other copyright owners. For more information on Open Research Online's data policy on reuse of materials please consult the policies page. We demonstrate that diode-switching can be used to introduce frequency agility into antennas produced by thermal transfer printing. Our particular example ...

2011
D. Zhou S. Gao F. Zhu R. A. Abd-Alhameed J. D. Xu

A printed monopole ultra wideband (UWB) antenna with frequency band-notched characteristics is proposed and investigated. The antenna consists of a half-disk shaped structure combined with an inverted isosceles trapezoid structure. To achieve the frequency band notched characteristics, an open-ended thin slit with a length of about one quarter guided wavelength is inserted on the radiator. Mult...

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