Results 11 to 20 of about 21,968 (229)

Millimeter Wave Substrate Integrated Waveguide Antennas: Design and Fabrication Analysis [PDF]

open access: yes, 2009
The paper presents a new concept in antenna design, whereby a photo-imageable thick-film process is used to integrate a waveguide antenna within a multilayer structure. This has yielded a very compact, high performance antenna working at high millimeter-
Batchelor, John C.   +4 more
core   +1 more source

Increasing the Bandwidth of Wideband Antennas Using the Frequency Pulling Technique

open access: yesIEEE Open Journal of Antennas and Propagation, 2023
Frequency pulling technique (FPT) is a recently developed method for increasing the bandwidth (BW) of microstrip antennas. It is based on the insertion loss methodology used for the design of bandpass filters.
Anastasios G. Koutinos   +2 more
doaj   +1 more source

Analysis of Finite Microstrip Structures Using an Efficient Implementation of the Integral Equation Technique [PDF]

open access: yes, 2005
An efficient numerical implementation of the Integral Equation technique (IE) has been developed for the analysis of the electrical characteristics of finite microstrip structures.
A. Alvarez Melcon   +26 more
core   +3 more sources

Wave-based digital models of different branch-line couplers [PDF]

open access: yesSerbian Journal of Electrical Engineering, 2020
Microwave and millimeter-wave communication systems require couplers in different applications. The aim of this paper is to construct simple wave digital models of directional couplers with two or three parallel lines.
Stošić Biljana P.
doaj   +1 more source

Feasibility Study of Logic Circuits with Spin Wave Bus [PDF]

open access: yes, 2007
We present a feasibility study of logic circuits utilizing spin waves for information transmission and processing. As an alternative approach to the transistor-based architecture, logic circuits with spin wave bus do not use charge as an information ...
Bao, Mingqiang   +4 more
core   +1 more source

Defining Breast Tumor Location Using a Four-Element Wearable Circular UWB MIMO Antenna Array

open access: yesApplied Sciences, 2023
The objective of this paper is to develop a wearable circular UWB MIMO antenna array, consisting of four elements, that is capable of detecting and locating tumor cells within a heterogeneous breast phantom.
Tamer G. Abouelnaga   +3 more
doaj   +1 more source

T-shaped double-strip spoof surface plasmon polariton transmission lines and application to microwave resonators

open access: yesScientific Reports, 2022
A microwave double-strip spoof surface plasmon polariton (DS SSPP) is proposed for high-speed interconnects and high-performance microwave circuits. Based on the dispersion analysis, a T-shaped double-strip structure is designed to provide strong surface-
Wonseok Choi, Jinho Jeong
doaj   +1 more source

Optimized absorbing boundary conditions for the analysis of planar circuits using the finite difference time domain method [PDF]

open access: yes, 1993
It is shown that the description of absorbing boundary condition algorithms (ABCs) in terms of single incident plane waves does not provide sufficient information for choosing the best ABC for planar waveguide termination.
Daniel, EM   +3 more
core   +2 more sources

A Comprehensive Computational Design for Microstrip Passive and Active Linear Circuits

open access: yesInternational Islamic University Malaysia Engineering Journal, 2012
In this paper, a complete program called HHSS2 is introduced which is a user-oriented program capable of designing linear active and passive microstrip circuits such as amplifiers, oscillators, mixers, lowpass filters, and couplers.
El-Sayed A. El-Badawy, S. H. Ibrahim
doaj   +1 more source

Low power CMOS iImage sensor for face recognition [PDF]

open access: yes, 2020
Imaging system is suitable for different purposes, depending upon their final application. Digital cameras, camcorders, webcams, security cameras or infrared (IR) cameras are well-known imaging systems.
Chan, Kit Heng, Ruslan, Siti Hawa
core  

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