Results 21 to 30 of about 5,333 (95)

Planar ESPAR Array Design with Nonsymmetrical Pattern by Means of Finite-Element Method, Domain Decomposition, and Spherical Wave Expansion

open access: yesInternational Journal of Antennas and Propagation, 2012
The application of a 3D domain decomposition finite-element and spherical mode expansion for the design of planar ESPAR (electronically steerable passive array radiator) made with probe-fed circular microstrip patches is presented in this work.
Jesús García   +4 more
doaj   +1 more source

Experimental and Computational Analysis of Broadband THz Photoconductive Antennas

open access: yesInternational Journal of Antennas and Propagation, 2023
The work presents the fabrication and measurements of four LT-GaAs photoconductive terahertz (THz) antennas with different geometries of metallic electrodes.
Zachary Uttley   +3 more
doaj   +1 more source

Modal Proportion Analysis in Antenna Characteristic Mode Theory

open access: yesInternational Journal of Antennas and Propagation, 2019
The characteristic mode theory (CMT) can provide physically intuitive guidance for the analysis and design of antenna structures. In CMT applications, the antenna current distribution is decomposed into the superposition of multiple characteristic modes,
Weiwen Li   +4 more
doaj   +1 more source

A Triple-Band Microstrip Antenna with a Monopole Impedance Converter for WLAN and 5G Applications

open access: yesInternational Journal of Antennas and Propagation, 2022
In this study, a triple-band microstrip antenna with compact size and simple structure is proposed for WLAN and 5G applications. The radiating element consists of a circular patch, a Y-shaped patch, and a monopole impedance converter.
Huawei Zhuang   +9 more
doaj   +1 more source

Jesús M. Nieto Ibáñez - Juana M. Torres Prieto (eds.). Historia de la literatura cristiana en la Antigüedad, Madrid, Ciudad Nueva 2024, 681 pp. [978-84-9715-577-9] [Reseña de libro] [PDF]

open access: yes
Reseña de libro: Jesús M. Nieto Ibáñez - Juana M. Torres Prieto (eds.). Historia de la literatura cristiana en la Antigüedad, Madrid, Ciudad Nueva 2024, 681 pp.
Urbano Ruiz, Miriam
core   +1 more source

Design and Analysis of UWB MIMO Antenna for Smart Fabric Communications

open access: yesInternational Journal of Antennas and Propagation, 2022
This paper presents a flexible multiple-input, multiple-output (MIMO) antenna with ultrawideband (UWB) performance for smart clothing applications. The MIMO antenna is comprised of four octagonal-shaped radiators with several slots loaded into them, and ...
Thennarasi Govindan   +3 more
doaj   +1 more source

Broadband Linear to Circular Polarizer Based on Multilayer Frequency-Selective Surface

open access: yesInternational Journal of Antennas and Propagation, 2023
In this work, a transmission polarizer is described by using a frequency-selective surface to transform linearly polarized waves into circularly polarized waves. The linear to circular (LTC) polarizer consists of four layers.
Yi Yuan   +5 more
doaj   +1 more source

The Effect of fuel and poison management on nuclear power systems [PDF]

open access: yes, 2014
Statement of responsibility on title page reads: N.B. McLeod, M. Benedict, K. Uematsu, H.L. Witting, and K.S. Ram"September 15, 1961."Submitted by the first author as a Ph. D. thesis, Massachusetts Institute of Technology, Dept.
Ram, K. S.   +4 more
core  

Multiband Printed Loop Mobile Phone Antenna for LTE/WWAN/GNSS Application

open access: yesInternational Journal of Antennas and Propagation, 2016
A multiband printed loop mobile phone antenna for LTE/WWAN/GNSS application is presented. It covers seven communication bands (VSWR < 3) and GNSS band (VSWR < 1.5).
Yuan Xu, Hao-Miao Zhou
doaj   +1 more source

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