Results 21 to 30 of about 54,143 (209)
Engineering Reports, 2020 This article presents a solution for the low gain and the poor efficiency of the on‐chip antennas (OCA). The four elements of Quasi‐Yagi‐Uda antennas (QYUA) are introduced based on the diversity technique to reduce the interference between the elements ...
Kamel S. Sultan +2 more
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Delay-line stabilized microwave oscillator with frequency control [PDF]
, 1997 This thesis was submitted for the degree of Doctor of Philosophy and awarded by Brunel University.The technique whereby the frequency of an oscillator is stabilized using an external feedback network incorporating a delay-line is extended in this thesis ...
Free, Charles Edward
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Applied 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
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Complex modes in boxed microstrip [PDF]
, 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
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Single‐fed 4G/5G multiband 2.4/5.5/28 GHz antenna
IET Microwaves, Antennas & Propagation, 2019 In this study, a single‐fed printed multiband antenna for 4G/5G wireless communication systems is presented. The proposed multiband antenna consists of Franklin strip monopole antenna to cover 4G, and wireless applications (WLAN and WiMAX), and a ...
Mohammed E. Yassin +3 more
doaj +1 more source
An analysis of microstrip with rectangular and trapezoidal conductor cross sections [PDF]
, 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
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Ultrawideband Vivaldi Antenna for DVB-T, WLAN, and WiMAX Applications
International 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
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Beam scanning using microstrip line on biased ferrite [PDF]
, 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.
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Fast finite difference time domain analysis of microstrip patch antennas [PDF]
, 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
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Low SAR, Simple Printed Compact Multiband Antenna for Mobile and Wireless Communication Applications
International 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