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Compact Software
Compact Software was the first commercially successful microwave computer-aided design (CAD) company. The company was founded in 1973 by Les Besser to commercialize his eponymous program COMPACT (Computerized Optimization of Microwave Passive and Active CircuiTs), released when he was at Farinon Electric Company. History Besser began working on simulators during his employment at HP (1966–1969), using the BASIC computer language and time-sharing computers. After leaving HP, he joined the newly formed microwave division of Fairchild Semiconductor, where he authored his first-generation program, SPEEDY, in 1970 to promote Fairchild's transistors. SPEEDY lacked the optimization feature, represented by the 'O' in the COMPACT acronym, but included a large s-parameter database with the all Fairchild's bipolar and GaAs microwave transistors. Fairchild customers had access to that database through SPEEDY. Besser later converted another program, originally written for his graduate the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RF Microwave CAE CAD
RF microwave CAE CAD is computer-aided design (CAD) using computer technology to aid in the design, modeling, and simulation of an RF (Radio Frequency) or microwave product. It is a visual and symbol-based method of communication whose conventions are particular to RF/microwave engineering. Scope of design RF and microwave circuit design and simulation software for the electronic design automation (EDA) marketplace includes but not limited to circuit simulation, analysis, schematic capture, and integrated design environment for synthesis tools which automate the design of HF (high frequency) circuits from RF to microwave to millimeter waves. Physical modeling of stripline and microstrip for transmission lines. A wide range of applications are possible, from analog sub-circuit design to RF circuit design for complex wireless communications systems. Scope of modeling There are a vast number of device or component types which can be simulated in computer aided design software. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ulrich L
Ulrich (), is a German given name, derived from Old High German ''Uodalrich'', ''Odalric''. It is composed of the elements '' uodal-'' meaning "(noble) heritage" and ''-rich'' meaning "rich, powerful". Attested from the 8th century as the name of Alamannic nobility, the name is popularly given from the high medieval period in reference to Saint Ulrich of Augsburg (canonized 993). There is also a surname Ulrich. It is most prevalent in Germany and has the highest density in SwitzerlandThis last name was found in the United States around the year 1840Most Americans with the last name were concentrated in Pennsylvania, which was home to many Pennsylvania Dutch, German immigrant communities. Nowadays in the United States, the name is distributed largely in the Pennsylvania-Ohio regio History Documents record the Old High German name ''Oadalrich'' or ''Uodalrich'' from the later 8th century in Alamannia. The related name ''Adalric'' ( Anglo-Saxon cognate '' Æthelric'') is attested ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harmonic Balance
Harmonic balance is a method used to calculate the steady-state response of nonlinear differential equations, and is mostly applied to nonlinear electrical circuits . It is a ''frequency domain'' method for calculating the steady state, as opposed to the various ''time-domain'' steady state methods. The name "harmonic balance" is descriptive of the method, which starts with Kirchhoff's Current Law written in the frequency domain and a chosen number of harmonics. A sinusoidal signal applied to a nonlinear component in a system will generate harmonics of the fundamental frequency. Effectively the method assumes the solution can be represented by a linear combination of sinusoids, then balances current and voltage sinusoids to satisfy Kirchhoff's law. The method is commonly used to simulate circuits which include nonlinear elements, and is most applicable to systems with feedback in which limit cycles occur. Microwave circuits were the original application for harmonic bala ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curve Fitting
Curve fitting is the process of constructing a curve, or mathematical function, that has the best fit to a series of data points, possibly subject to constraints. Curve fitting can involve either interpolation, where an exact fit to the data is required, or smoothing, in which a "smooth" function is constructed that approximately fits the data. A related topic is regression analysis, which focuses more on questions of statistical inference such as how much uncertainty is present in a curve that is fit to data observed with random errors. Fitted curves can be used as an aid for data visualization, to infer values of a function where no data are available, and to summarize the relationships among two or more variables. Extrapolation refers to the use of a fitted curve beyond the range of the observed data, and is subject to a degree of uncertainty since it may reflect the method used to construct the curve as much as it reflects the observed data. For linear-algebraic analys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Bandler
John William Bandler (born 9 November 1941) is a Canadian professor,C. Kudsia, L. Keyes, A. Stajcer, R. Douville, and M. Nakhla, "Microwave in Canada," IEEE Microwave Magazine, vol.13, no.3, pp. 87-106, 2012. engineer, entrepreneur, artist, speaker, playwright, and author of fiction and nonfiction. Bandler is known for his invention of space mapping technology and his contributions to device modeling, computer-aided design, microwave engineering, mathematical optimization, and yield-driven design. Early life and education The only child of parents who escaped from Nazi-occupied Vienna to Cyprus, from where they were subsequently evacuated along with other Jewish refugees in 1941, Bandler was born in Jerusalem. After the War, his parents returned to Cyprus, where Bandler attended the Junior School in Nicosia, and, for a year, The English School in Nicosia. After a brief stay in Vienna in 1956, he left for England and completed his schooling in London. He entered Imperial C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Optimization Systems Associates
Optimization Systems Associates (OSA) was founded by John Bandler in 1983. OSA produced the first commercial implementation of space mapping optimization to enhance the speed and accuracy of engineering design. OSA’s primary thrust was in computer-aided design (CAD) and simulation and optimization of radio-frequency and microwave circuits and systems. Its products included developments of Bandler's space mapping concept and methodology, which facilitates effective modeling and design optimization of computationally intensive engineering systems. History Bandler founded OSA in 1983 to commercialize optimization methodology and algorithms which he and his colleagues had developed. OSA's first major project was the reengineering of key software for simulation and optimization of waveguide multiplexers for satellite communications under contract to COM DEV International. In the 1980s OSA contributed optimization methodology and algorithms to EEsof’s early microwave CAD software ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IBM Personal Computer
The IBM Personal Computer (model 5150, commonly known as the IBM PC) is the first microcomputer released in the IBM PC model line and the basis for the IBM PC compatible de facto standard. Released on August 12, 1981, it was created by a team of engineers and designers directed by Don Estridge in Boca Raton, Florida. The machine was based on open architecture and third-party peripherals. Over time, expansion cards and software technology increased to support it. The PC had a substantial influence on the personal computer market. The specifications of the IBM PC became one of the most popular computer design standards in the world. The only significant competition it faced from a non-compatible platform throughout the 1980s was from the Apple Macintosh product line. The majority of modern personal computers are distant descendants of the IBM PC. History Prior to the 1980s, IBM had largely been known as a provider of business computer systems. As the 1980s opened, their ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Les Besser
Les Besser (born 1936) is an American electronics engineer, an expert in microwave technology. He is the founder (1973) of Compact Software, the first commercially successful microwave computer-aided design (CAD) company, which commercialize his program COMPACT (Computerized Optimization of Microwave Passive and Active CircuiTs).Les Besser bio at Microwaves 101 Hall of FameLes Besser bio at Besser Associates Les Besser was born and raised in Hungary ( interbellum and |
EEsof
PathWave Design is a division of Keysight Technologies that was formerly called EEsof ( ; electronic engineering software). It is a provider of electronic design automation (EDA) software that helps engineers design products such as cellular phones, wireless networks, radar, satellite communications systems, and high-speed digital wireline infrastructure. Applications include electronic system level (ESL), high-speed digital, RF-Mixed signal, device modeling, RF and Microwave design for commercial wireless, aerospace, and defense markets. History EEsof was founded in 1983 by an entrepreneur, Charles J. ("Chuck") Abronson, and a former Compact Software employee, Bill Childs. EEsof's first products included high-frequency circuit simulators such as Touchstone and Libra. Although the Touchstone simulator itself is obsolete, its eponymous file format lives on. EEsof was acquired by Hewlett-Packard in 1993 and later spun out first as part of Agilent Technologies in 1999 and then as pa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
