نتایج جستجو برای: dual notched bands

تعداد نتایج: 205783  

2009
Y. Song Y. C. Jiao T. L. Zhang G. Zhao F. S. Zhang

A small tapered slot antenna with a notched band for wireless applications is proposed in this paper. A modified transition from microstrip to slotline is used to introduce a notched band from 4.90 to 6.34GHz. Corrugated edges on the ground is also used to improve the radiation patterns at the lower frequency band. Relatively stable radiation patterns and consistent group delay except the notch...

Journal: :The Journal of the Institute of Webcasting, Internet and Telecommunication 2013

Journal: :Scientia Iranica 2022

A broadband compact Y shaped monopole antenna with band-notched characteristics is designed and investigated. The structure based on the defected ground slit resonating structures. plane loaded two hook slots opposite edges along its width. One horizontal slot one vertical are also etched to improve impedance matching for design resonate in WiMAX WLAN wide bands. It operates at frequencies of 2...

2011
I. Liberal I. Ederra R. Gonzalo

A prototype for a dual-band metamaterial-inspired antenna is presented. The antenna consists of a dual-band dipole placed between two meta-surfaces, which are tuned to operate at both dipole bands. In this way, the dipole radiates at a different half-space at each frequency band. Antenna gains as high as 6.1dB and 7.6dB have been measured at the lowand high-frequency bands, respectively, while ...

2012
Mustafa H. B. Ucar Adnan Sondas Yunus E. Erdemli

─ A novel loop-loaded printed dipole (LLPD) with a wideband balun structure is presented for aiming a dual-band antenna operation at 3.0/5.5 GHz bands. The proposed balun structure alone demonstrates VSWR<1.5 performance over a 3:1 bandwidth. As the loop elements placed on the antenna aperture provides dual-band operation with at least 15% impedance bandwidths, the wideband balun/feed allows fo...

2009
J. M. Steyn J. W. Odendaal J. Joubert

This paper presents a dual-band dual-polarized antenna array design for WLAN applications. Four double-dipole elements are orthogonally interleaved to facilitate operation in both the standard WLAN frequency bands (IEEE 802.11b and IEEE 802.11a) simultaneously. The two linear polarizations have separate ports. The presented design is characterized by dual-band operation, reasonably good front-t...

2010
A. M. Abbosh

A multiresonance double cross element is used to design a dual-band reflectarray with dual linear polarization. The proposed element has a single conductive layer structure which makes it easy to manufacture. The results presented in this paper show that the mutual effect between the elements of the two bands is negligible. Hence, it is easy to achieve the phase compensation for each band separ...

2001
James H. Schmerl

Stein (1990) discovered (n l)! lattice tilings of R” by translates of the notched n-cube which are inequivalent under translation. We show that there are no other inequivalent tilings of IF!” by translates of the notched cube.

2013
Tapan Mandal Santanu Das

Abstract—In this paper, a printed slot antenna fed by a co-planar waveguide for ultra wide bandwidth (UWB) with dual notch bands has been presented and discussed. The band notches are realized by etching one C-slot resonator inside a plaque shape exciting stub as well as symmetrically adding a pair of open-circuit stubs at the edge of the slot resulting in dual stop band filtering properties fo...

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