scholarly journals Design of a Compact Planar Rectenna for Wireless Power Transfer in the ISM Band

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Fang Zhang ◽  
Xin Liu ◽  
Fan-Yi Meng ◽  
Qun Wu ◽  
Jong-Chul Lee ◽  
...  
Keyword(s):  
Cycle Time ◽  
Design Methodology ◽  
Low Cost ◽  
Wireless Power ◽  
High Conversion Efficiency ◽  
Operation Mechanism ◽  
Ism Band ◽  
Design Cycle ◽  
Rectenna Design ◽  
Compact Planar

This paper presents a compact planar rectenna with high conversion efficiency in the ISM band. The proposed rectenna is developed by the decomposing of a planar rectenna topology into two functional parts and then recombining the two parts into a new topology to make the rectenna size reduction. The operation mechanism of the antenna and rectifying circuit in the proposed novel topology is explained and the design methodology is presented in detail. The proposed topology not only reduces the rectenna design cycle time but also leads to easy realization at the required frequency ranges with a very low cost. For validation, a 2.45 GHz rectenna system is designed and measured to show their microwave performances.

scholarly journals Novel RF energy harvesting using Rectenna

2021 ◽  
Vol 2070 (1) ◽  
pp. 012112
Author(s):  
Nikhil Purohit ◽  
Imaculate Rosaline
Keyword(s):  
Energy Harvesting ◽  
Power Transmission ◽  
Low Cost ◽  
Wireless Power ◽  
Rf Energy Harvesting ◽  
Low Threshold ◽  
Rf Energy ◽  
Rectenna Design ◽  
Performance Results ◽  
Good Agreement

Abstract In this paper an experimental RF energy harvester using rectifying antenna (rectenna) to harvest ambient energy from cellular device operating at 900 MHz GSM band is proposed. The circuit is a combination of antenna and rectifying circuit using Schottky barrier diode for microwave (RF) to DC conversion. The performance results of the rectenna shows radiation efficiency of around 58.81%, gain of 3.9 dB and directivity of 5.972 dBi. The proposed rectenna design can prove to be a low cost device for wireless power transmission and RF energy harvesting. The prototype is fabricated with simulated and measured results in good agreement, having a return loss of 21 dB at frequency of around 885 MHz. The overall efficiency is enhanced by using ISS351-TB-E Schottky diode which is categorized by a low junction capacitance and a low threshold voltage to achieve higher conversion efficiency.

RF design methodology for design-cycle-time reduction using parameterization of embedded passives on multilayer organic substrates

2008 ◽  
Author(s):  
Sung-Hwan Min ◽  
Chung-Seok Seo ◽  
Ana M. Yepes ◽  
Chris Ward ◽  
Sidharth Dalmia ◽  
...  
Keyword(s):  
Cycle Time ◽  
Design Methodology ◽  
Organic Substrates ◽  
Rf Design ◽  
Design Cycle ◽  
Cycle Time Reduction ◽  
Embedded Passives ◽  
Time Reduction

Reducing Cycle Time and Errors in the Design and Layout of MEMS

2003 ◽  
Author(s):  
Michael S. Cherry ◽  
Gregory M. Roach ◽  
Jonathan W. Wittwer ◽  
Larry L. Howell ◽  
Jordan J. Cox
Keyword(s):  
Design Process ◽  
Cycle Time ◽  
Design Methodology ◽  
Parametric Design ◽  
Design Procedure ◽  
Technical Document ◽  
Test Procedures ◽  
Design Models ◽  
Design Cycle ◽  
Finite Set

A design methodology is presented which decreases cycle time and opportunities for error through automated execution of a consistent design procedure. The Product Design Generator (PDG) methodology is useful for existing devices with a well-established design process. Two such examples are given, the Thermomechanical In-plane Microactuator (TIM) and the micro force gauge. In both PDGs, the designer inputs a finite set of requirements which automatically updates parametric design models. The necessary analyses are then executed, and product artifacts such as a CAD file, technical document, and test procedures are generated. The application of this method reduces the opportunities for error by ten times for the TIM PDG and five times for the micro force gauge PDG. The design cycle time is reduced from hours to minutes for both devices.

Flexural Joints in Mechanisms

2000 ◽  
Author(s):  
M. P. Koster
Keyword(s):  
Consumer Goods ◽  
Design Methodology ◽  
Low Cost ◽  
Point Of View ◽  
Industrial Technology ◽  
Scientific Instruments ◽  
Manufacturing Equipment ◽  
Flexural Fatigue ◽  
Elastic Deflection ◽  
Flexural Joints

Abstract The application of flexural joints in mechanisms has a number of advantages. Extreme repeatability of position is obtained because of the absence of backlash and friction. From a tribological point of view, no lubrication is needed and no wear exists. In many cases their application gives rise to a low cost assembly. Flexural elements have their particular drawbacks as well. Deflections are limited; only oscillating motions can be performed and work has to be done as a consequence of the elastic deflection. Flexural fatigue sets another limit to their application. The paper gives an overview of a design methodology that has been developed at the Philips Center for Industrial Technology by the author and his colleagues over the last several decades. Some aspects of this methodology are well known; other aspects are unique. The methodology is described in detail in a book by the author about design principles (Koster 1998). The methodology has been used to design hundreds of practical mechanisms incorporated in scientific instruments, manufacturing equipment and consumer goods. Many examples are given in (Koster 1998). Several interesting examples are given in this paper.

scholarly journals A low cost testbed and test-design methodology for nanosatellite sub-/systems

2017 ◽  
Author(s):  
Yaseen Zaidi ◽  
Robert van Zyl
Keyword(s):  
Design Methodology ◽  
Low Cost ◽  
Test Design

Realizing high-efficiency power generation in low-cost PbS-based thermoelectric materials

2020 ◽  
Vol 13 (2) ◽  
pp. 579-591 ◽  
Author(s):  
Binbin Jiang ◽  
Xixi Liu ◽  
Qi Wang ◽  
Juan Cui ◽  
Baohai Jia ◽  
...  
Keyword(s):  
Power Generation ◽  
Conversion Efficiency ◽  
Thermoelectric Materials ◽  
High Efficiency ◽  
Low Cost ◽  
Thermoelectric Module ◽  
High Conversion ◽  
High Conversion Efficiency

A high conversion efficiency of 11.2% was realized in a low-cost PbS-based segmented thermoelectric module.

Web-based tools for collaborative research

2017 ◽  
Vol 34 (8) ◽  
pp. 8-19
Author(s):  
Stacy Brody
Keyword(s):  
Collaborative Research ◽  
Design Methodology ◽  
Research Collaboration ◽  
Low Cost ◽  
Research Process ◽  
Web Based ◽  
Content Type ◽  
Collaborative Tools ◽  
Start Ups ◽  
Practical Implications

Purpose The purpose of this paper is to profile various types of Web-based tools to facilitate research collaboration within and across institutions. Design/methodology/approach Various Web-based tools were tested by the author. Additionally, tutorial videos and guides were reviewed. Findings There are various free and low-cost tools available to assist in the collaborative research process, and librarians are well-positioned to facilitate their usage. Practical implications Librarians and researchers will learn about various types of tools available at free or at low cost to fulfill needs of the collaborative research process. Social implications As the tools highlighted are either free or of low cost, they are also valuable to start-ups and can be recommended for entrepreneurs. Originality/value As the realm of Web-based collaborative tools continues to evolve, the options must be continually revisited and reviewed for currency.

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