advertisment Advertisement
This ad will close in  seconds. Skip now
advertisment Advertisement
advertisment Advertisement
advertisment Advertisement
advertisment Advertisement

Software & CAD

Implementation of a Neural Network HEMT Model into ADS

An approach for implementing a neural network algorithm to develop a large-signal HEMT model into ADS
Willie L. Thompson II, Eric V. Miller and Carl White
No Comments
Technical Feature Implementation of a Neural Network HEMT Model into ADS Neural network algorithms have been applied to various areas of engineering and computer science. A high electron-mobility transistor (HEMT) large-signal model has been implemented in the Advanced Design System (ADS) software package using a multilayered neural network. The...
Read More

A Broadband Planar Isolator Using Coupled Microstrip Lines on a Magnetized Gyrotropic Substrate

Introduction to a new type of broadband isolator using nonreciprocal coupling between two microstrip lines fabricated on a magnetized gyrotropic substrate
Y.C. Moon, J.R. Lee, S.W. Yun and I.S. Chang
No Comments
Technical Feature A Broadband Planar Isolator Using Coupled Microstrip Lines on a Magnetized Gyrotropic Substrate A new type of broadband isolator, using coupled microstrip lines on a transversely magnetized gyrotropic substrate, is proposed in this article. The nonreciprocal coupling between two microstrip lines can be used to create an...
Read More

Planar EM Simulation of Multi-chip Modules and BGA Packages

Effect of planar electromagnetic simulators on multi-chip modules and ball grid array mounting techniques
Jim DeLap
No Comments
Technical Feature Planar EM Simulation of Multi-chip Modules and BGA Packages Jim DeLap Agilent EEsof EDA Westlake Village, CA As electronics vendors and consumers demand smaller and lower cost products, manufacturers must find ways to increase levels of integration while maintaining product functionality. These higher levels of integration are...
Read More

An Embedded MOS Model 9 for CMOS RF Circuit Design

Presentation of an n-channel MOS transistor model for the simulation of CMOS RF circuits in the gigahertz range
Christian Rye Iversen
No Comments
Technical Feature An Embedded MOS Model 9 for CMOS RF Circuit Design This article presents an n-channel MOS transistor model for the simulation of CMOS RF circuits in the gigahertz range. This model is based on a MOS model 9 (MM9) compact transistor model, embedded in a network describing...
Read More

Rigorous Analytical Expressions for Electromagnetic Parameters of Transmission Lines: Coupled Sliced Coaxial Cable

A set of accurate closed-form formulas for primary parameter matrices and even- and odd-mode impedances for coupled sliced coaxial cables
N. Benahmed and M. Feham
No Comments
Technical Feature Rigorous Analytical Expressions for Electromagnetic Parameters of Transmission Lines: Coupled Sliced Coaxial Cable This article is a continuation of a previous article that appeared in Microwave Journal and is the first part in the development of accurate closed-form formulas for the primary parameters (inductance [L] and capacitance...
Read More

Circuit Designers: An Endangered Species?

Overview of the impact of sophisticated CAD software on today's analog design engineer
Ernest Rejman
No Comments
Special Report Circuit Designers: An Endangered Species? Ernest Rejman, Contributing Editor Back in the Jurassic Period, when the four-function calculator first made its appearance, some greeted it with dismay. "Suitable for imbeciles," spat an elder engineer of my acquaintance. "Now it won't be necessary to even know how to...
Read More

Coping with Hidden Spurious Harmonic Modes in the Design of Low Pass Corrugated Waveguide Filters

Proposed simulation scheme to predict the frequency band location and hidden spurious harmonic modes in low pass corrugated waveguide filters
Ke-Li Wu and Gordon McDonald
No Comments
Technical Note Coping with Hidden Spurious Harmonic Modes in the Design of Low Pass Corrugated Waveguide Filters Hidden spurious harmonic modes in corrugated waveguide filters are investigated from both theoretical and practical points of view. It has been found that multiple mode couplings occurring at more than one place...
Read More

Application and Operation of a Double OCXO

Use of double oven-controlled crystal oscillators to improve thermal quality for highly precise frequency references
Timo Reinhardt
No Comments
Application Note Application and Operation of a Double OCXO Timo Reinhardt FOQ Piezo Technik GmbH Bad Rappenau, Germany Central switching centers make up the junction of mobile and stationary communications. In order to handle increasing data flows, this operation is performed at ever-higher frequencies and data speeds, and the...
Read More

An Automatic Macro Program for Radio Frequency MOSFET Characteristics Analysis

Introduction to an automatic macro program used for the analysis of radio frequency MOSFETs
C.Y. Su, S.J. Chang, L.P. Chen, Y.P. Ho, G.W. Huang, D.C. Lin, B.M. Tseng, H.Y. Lee, J.F. Kuan, Y.M. Deng, K.A. Wen, C.Y. Chang
No Comments
Technical Feature An Automatic Macro Program for Radio Frequency MOSFET Characteristics Analysis The parameter extraction language (PEL) in Agilent IC-CAP software is used to develop an automatic macro program for the analysis of the characteristics of RF MOSFETs. By using this powerful macro program, the time spent on the...
Read More

Fractional-N Synthesizers

Description of fractional-N synthesizers and the associated systems used to implement the technology in commercially available products
David Owen
No Comments
Technical Feature Fractional-N Synthesizers David Owen IFR Systems Inc. Wichita, KS Fig. 1 A basic fractional-N system with no jitter correction based on a single accumulator. Fractional-N synthesizers have been used for many years to improve the performance of indirect frequency synthesizers. A simple indirect synthesizer consists of a...
Read More

Sign-In

Forgot your password?

No Account? Sign Up!

Get access to premium content and e-newsletters by registering on the web site.  You can also subscribe to Microwave Journal magazine.

Sign-Up

advertisment Advertisement