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RF & Microwave Design and Test Symposium 2012: Agenda

RF & Microwave Design

  Test and Measurement Track Design Track
08:30 Registration and coffee
09:00  Joint Welcome: Linking Microwave and RF Design and Test

Keynote: Redefining RF Instrumentation with FPGA Technology

As test and measurement requirements continue to increase in complexity, new instrumentation paradigms are required. In this session, we’ll discuss how RF and microwave instrumentation is being redefined with an open-software, FPGA-based approach that achieves industry-leading speed, accuracy and flexibility. Among the technologies presented will be the world's first Vector Signal Transceiver, which combines a VSA and a VSG with open-source, FPGA-based firmware for real-time signal processing and control.

Keynote : Introduction to AWR Design Flow and New Features for V10

This presentation gives an overview of AWR’s unique integrated RF and microwave design flow. The talk also shows features of the V10 release of the AWR Design
Environment™. It examines how the new release helps users to improve design accuracy, increase their own productivity and therefore reduce time to market.

RF Signal Analysers, Part 1: Architectures, Specifications, and Common Measurements

In this session, we’ll provide an introduction to various architectures of RF signal analysers and explain some of the tradeoffs between them.  Architectures discussed include Zero-IF downconversion, single-stage frequency conversion and the traditional three-stage downconverter.  Also, we’ll introduce some of the fundamental theory behind common spectrum measurements such as intermodulation distortion, third order intercept and adjacent channel power.

Simulating an NXP Doherty Power Amplifier with Digital Pre-Distortion

Digital pre-distortion (DPD) is gaining in importance as designers seek maximum efficiency and minimum ACPR from their power amplifiers. In this talk, a complete design flow for a Doherty amplifier using NXP transistors, from matching the device (including electromagnetic simulation of the large matching structures), thru to circuit level
nonlinear analysis using harmonic balance, and system level analysis featuring the DPD correction with be demonstrated and feature the use of AWR’s Microwave Office, AXIEM and Visual Systems Simulator software. In
particular, significant improvement will be shown in ACPR, and simulation results will be compared to measurements.
10:45 Break

RF Signal Analysers Part 2: Maximising Performance in Frequency Domain Measurements

In this session, we’ll explain common techniques you can use to optimise the performance of common spectrum analyser measurements.  This session will explain the impact of noise and non-linearity in measurement performance, and discuss ways to reduce these impairments. Techniques discussed include signal analyser gain stage and filtering control, noise correction and the use of pre-selection filtering.

RF Link Prediction - A New and Novel Approach

Understanding and correctly predicting the performance of an RF link early in the design cycle is a critical element to product success. More often than not using modeling methods such as rules of thumb and spreadsheet
calculations (Friis equations) give little to limited insight as to the full performance of an RF link. Through a combination of spreadsheets and system simulation software, this talk will highlight the advantages of using more than just rules-of-thumb or a spreadsheet program to predict RF link performance.


Advanced Technologies for RF Record and Playback, MIMO and Spectral Monitoring

The ability to record all signals in a portion of RF spectrum presents new opportunities for offline signal analysis. Combining this with the ability to regenerate a portion of RF spectrum creates powerful new techniques for troubleshooting and testing RF systems. At this session, review the basics of PCI Express, the high-throughput data bus that enables data streaming for applications such as monitoring spectrum activity and interference over large bandwidths and long durations of time. This session also features an overview of record and playback system architectures in PXI Express and examines the latest RAID technologies and peer-to-peer streaming capabilities enabled by new FPGA-based PXI instruments.

Customer Presentation by Amplifier Technology: Design of High Power GaN PAs Using RF/Microwave Software
AWR: Practical GaN PA Design Examples

The Amplifier Technology paper describes the design of an Amplifier Technology high power PA using AWR's Microwave Office and Cree GaN HEMT large signal models. This has substantially shortened or eliminated product design cycles and massively improved the probability that the new device will perform as specified at the first attempt. The AWR paper presents practical amplifier examples, including a  480W Doherty PA. The presentation includes various design techniques and tips to ensure you receive first-pass design success. 
The accuracy of simulation-to-measured results significantly reduces the time required to design a power amplifier.
12:30 Lunch
13:30 Incorporating Measurements in the Design Flow

Understanding Pulsed Network Analyser Measurements

Making accurate, pulsed S-parameter and time-domain measurements is challenging, even with modern vector network analysers (VNAs) and methods. Understanding these challenges can help you create a unique test solution using a PXI VNA. This VNA can make complex pulsed measurements for applications including the characterisation of RADAR components or high-power amplifiers as well as performing time-domain analysis to help you better understand such systems. At this session, explore several characteristics of pulsed RF signals and the adaptations you need to make to measure them with a VNA. Also, this session will examine basic VNA calibration and methods to accurately establish a measurement reference plane.

Design of a Novel Multi-Slot Antenna

The talk will present a new antenna design that utilises waveguide properties of cylinders with longitudinal slots to achieve optimal efficiency. Numerical and simulation data (from AWR’s AXIEM® 3D Planar EM Simulator) alongside data from live experiments will also be presented and
show that when the length of the antenna slot approaches the wavelength in free space, the field in the antenna aperture approaches the optimal distribution.
14:30 Break

Under the hood of 802.11ac and LTE Advanced

As consumers demand increasingly higher throughput on mobile devices, wireless standards evolve to meet these requirements. In this talk, we'll provide an overview to some of the key technology enhancements introduced in new standards such as the IEEE 802.11ac and LTE Advanced.  This presentation will discuss key differences between existing 802.11a, b, g, n and ac standards - and will show how 802.11ac is able to produce higher data rates. In addition, we’ll walk through some of the key distinctions between the existing 3GPP LTE standard and LTE Advanced. Finally, we'll explain some of the key test challenges introduced by the both standards - and explain how to perform the most important measurements for each standard.

Fully Integrating 3D Electromagnetic (EM) Simulation into Circuit Simulation

AWR’s new 3D finite element method simulator (Analyst™) is fully integrated into the circuit design and verification flow of Microwave Office™ and allows designers to send their layouts, including 3D objects directly to 3D EM without the need for painful and error  prone redrawing. EM simulation has become an essential tool for circuit designers for design, verification and  modeling. Traditionally, EM simulators fall into two different categories: planar and full 3D. Planar simulators have long been integrated into existing circuit design flows. But now this extraction flow has been extended to include 3D EM with Analyst. Since most circuit designers use standard 3D objects, for example, bond wires, BGA balls, and vias, the designer can now have the benefits of 3D simulation without the pain of drawing 3D objects in a separate EM simulator.

Design and Simulation of Modern Radar Systems Using AWR’s VSS and NI LabVIEW

Designing a complex, modern system, from schematic all the way through actual field testing, is a complex and daunting task. Learn how to use AWR’s Visual System Simulator (VSS) RADAR libraries to design and prototype RADAR systems in software. In addition, get an introduction to the VSS link to NI LabVIEW software and explore LabVIEW signal processing capabilities as a co-simulation engine with VSS. Also examine methods for RADAR prototyping and field simulation using PXI RF signal generators and analysers.

16:30 Closing Remarks

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