Results 11 to 20 of about 45,299 (236)

Beam scanning using microstrip line on biased ferrite [PDF]

open access: yes, 1997
The beam scanning properties of a 2-element patch array fed by a microstrip reed situated on a ferrite substrate are presented. Biasing the ferrite changes the phase length or the microstrip line, scanning the beam by up to 40 degrees. The resulting scan
Langley, Richard J., Batchelor, John C.
core   +1 more source

Complex modes in boxed microstrip [PDF]

open access: yes, 1988
A method is described for obtaining the propagation coefficients and field patterns of a large number of modes for microstrip with a minimum of computational effort.
Railton, CJ, Rozzi, T
core   +1 more source

An analysis of microstrip with rectangular and trapezoidal conductor cross sections [PDF]

open access: yes, 1990
The finite-difference time-domain (FDTD) technique is used to analyze boxed microstrip with both rectangular and trapezoidal cross sections. It is confirmed that the exact shape of the conductor has a marked effect on the effective permittivity of the ...
Railton, CJ, McGeehan, JP
core   +1 more source

Fast finite difference time domain analysis of microstrip patch antennas [PDF]

open access: yes, 1991
Although the finite-difference-time-domain method has been successfully used to model microstrip-fed patch antennas, this has been achieved using uniform grids.
Daniel, EM, Railton, CJ
core   +1 more source

Scanned microstrip arrays using simple integrated ferrite phase shifters [PDF]

open access: yes, 2000
A phase-steered microstrip antenna array is presented, suitable for application as a mobile vehicle satellite terminal. Phase shifters are implemented on a hybrid dielectric-ferrite substrate, and use is made of the phase transition near the cut-off ...
Langley, Richard J.   +2 more
core   +1 more source

An adaptive microstrip patch antenna for use in portable transceivers [PDF]

open access: yes, 1996
This paper describes an adaptive frequency tunable microstrip patch antenna. The introduction of an adaptive feedback loop enables the patch antenna to optimise the antenna-feed impedance match.
Railton, CJ, Rostbakken, O, Hilton, GS
core   +1 more source

Ultrawideband Vivaldi Antenna for DVB-T, WLAN, and WiMAX Applications

open access: yesInternational Journal of Antennas and Propagation, 2014
Compact Vivaldi patch antenna with a parasitic meander line is presented in this paper. A PIN diode switch is used to connect and disconnect ultrahigh frequency band (UHF) with ultrawide bandwidth (UWB).
Dalia M. Elsheakh, Esmat A. Abdallah
doaj   +1 more source

Design of a Wide-Bandwidth, High-Gain and Easy-to-Manufacture 2.4 GHz Floating Patch Antenna Fed with the Through-Wire Technique

open access: yesApplied Sciences, 2022
This paper presents a feasibility study for designing a floating patch antenna structure fed with a probe from a microstrip. The main premise is to eliminate the dielectric in the patch design, which is equivalent to having an air dielectric and leads to
Marcos D. Fernandez   +4 more
doaj   +1 more source

Stable inclusion of a priori knowledge of field behaviour in the FDTD algorithm: application to the analysis of microstrip lines [PDF]

open access: yes, 1996
A general methodology for incorporating a priori knowledge into the FDTD algorithm has been presented. In this contribution the technique has yielded a modified FDTD algorithm for the analysis of a microstrip; this method has been shown to be both more ...
Railton, CJ, Craddock, IJ
core   +1 more source

Low SAR, Simple Printed Compact Multiband Antenna for Mobile and Wireless Communication Applications

open access: yesInternational Journal of Antennas and Propagation, 2014
Simple multiband planar antenna for wireless communication applications is presented. The proposed antenna performs four resonant modes covering multibands of wireless standards, including LTE 700, GSM, DCS, PCS, UMTS, and LTE 2300/2500.
K. S. Sultan   +2 more
doaj   +1 more source

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