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12.15.09 -- Optimized Antenna Design Using Hardware-Accelerated FDTD

December 15, 2009

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In This Issue:

Featured Article

Optimized Antenna Design Using Hardware-Accelerated FDTD
By Christopher Penney and Yong Wang, Remcom, Inc.
The foundations of a modern electromagnetic design tool are described and demonstrated in this article. Those components that take a tool from being merely for analysis into the design realm are its abilities to parameterize and optimize the simulations which are then performed with great speed on hardware graphical processing units. The design process is demonstrated with a design example for a wideband antenna that must perform within specifications over a variety of realistic terrain compositions. The resulting antenna and the computational process are described in detail.

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Industry Event

IWCE
March 8 - 12, 2010
Las Vegas Convention Center

IWCE is the pre-eminent convergent communications expo for the working world, providing the critical information needed by professionals responsible for the dependability, reliability, and interoperability of their organization's communications system. From land mobile radio to wireless mobility, voice, video, data, and everything in between, communications technology is evolving and so is IWCE. Learn more at www.iwceexpo.com.

Technology 101 Articles

RF Globalnet provides its subscribers with a wide range of what we call "Technology 101" articles. These tutorials, papers, and other articles introduce you to the basics of RF, microwave, and millimeter-wave technologies and theory. You can access these articles in our Technology 101 Library.

If you are interested in submitting your own Technology 101 articles for consideration, please e-mail us at editor@rfglobalnet.com.

Featured Downloads

Product Overview: Bandpass Filters
Anatech Electronics provides bandpass filters that cover the 300-KHz to 2-GHz frequency range and are available with 2 to 15 sections...

Product Catalog: Semiconductor Discretes For RF/Microwave Applications
Skyworks provides semiconductor discretes for a wide range of applications including radar, point-to-point, point-to-multipoint, cellular, military, space-based communications, and other wireless microwave functions...

Datasheet: 20-dB Filtered Line Amplifier
The LA20FPDC GPS line amplifier from GPS Networking is designed specifically for the GPS L1/L2 carrier frequencies. There is an in-line GPS L1/L2 passband filter which lowers the out-of-band noise and interference...
Browse the download library

Featured Book

Mario Boella Series On Electromagnetism In Information And Communication
By Piergiorgio L. E. Uslenghi, Series Editor

This book series is devoted to applications of electromagnetism to all areas of radio science, with special emphasis on information and communication technologies...

Submission Information

RF Globalnet invites members of the community to submit their technical articles, application notes, white papers, tutorials, videos, press releases, and other relevant content for featuring on www.rfglobalnet.com and in our e-mail newsletter. Please send your submissions or questions to us at editor@rfglobalnet.com.

Featured Products

Surface-Mount Resistor Networks
The Mini-Systems SMR series of precision resistor networks for fine pitch, surface-mount applications feature a lead pitch of 0.031-inches and are available in 4 to 16 pin-out styles. Custom configurations are available.

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Surface-Mount Resistor Networks

60-GHz Noise Figure Test Set
The Noisecom 60-GHz noise figure test set from Wireless Telecom Group has four separate systems designed to perform Y-factor noise figure measurements using a high-performance spectrum analyzer or a dedicated receiver. The two standard calibration tables have ENR data points at 1-GHz intervals.

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60-GHz Noise Figure Test Set

Low-Noise Discrete Transistor
The SKY65053-377LF from Skyworks Solutions is a high-performance, N-channel, low-noise transistor. The device is fabricated from Skyworks advanced depletion mode pHEMT process and is provided in a 2 x 2-mm, 4-pin quad flat no-lead (QFN) package.

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Low-Noise Discrete Transistor

5- To 3000-MHz, Single-Pole, Double-Throw Switch
The SRS3019 is a 5- to 3000-MHz, single-pole, double-throw switch from Teledyne Cougar featuring a storage temperature of -62 to +125° C and a maximum DC voltage of +25 volts.

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5- To 3000-MHz, Single-Pole, Double-Throw Switch

PIN Diode Attenuators
The HVA series of broadband PIN diode attenuators from HXI cover the waveguide bands from 18 to 110 GHz. The attenuators are available for applications requiring variations in power levels using a control voltage.

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PIN Diode Attenuators

Broadband Amplifiers
The R&S BBA100 is a family of modular, flexible, and state-of-the-art broadband amplifiers from Rohde & Schwarz. The monitoring and control options allow the setup of very compact EMC systems.

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Broadband Amplifiers

Fixed-Frequency Transceivers
Microsemi's waveguide output transceivers are a reliable source of microwave power for speed and motion detection applications. The transceivers are a fully integrated module, with a Gunn diode mounted in the cavity for the transmitter and one or two Schottky barrier diodes in the receiver.

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Fixed-Frequency Transceivers

26.5- To 40-GHz, High-Gain Horn Antenna
The model ATH26G40 from AR is a wideband, high-gain, high-power microwave horn antenna. With a minimum gain of 18.9 dB over isotropic, the model ATH26G40 supplies the high-intensity fields necessary for RFI/EMI field testing within and beyond the confines of a shielded room.

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26.5- To 40-GHz, High-Gain Horn Antenna

Wi-Fi Network Processing Board
Express I has been designed for the most demanding network architectures. Express I operates at 533 MHz and has been manufactured with all industrial-rated components. The processing board will cold start from -40ºC and will maintain faultless operation thru 85ºC. There are many options available to further enhance the overall performance of this processing board.

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Wi-Fi Network Processing Board

RF/Microwave Configurable Switching Chassis
Giga-tronics recently introduced the model 8300 and model 8400 switching chassis for its ASCOR switch products, optimized for integration into automated test equipment (ATE).

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RF/Microwave Configurable Switching Chassis

AVC/H.264 HDTV Software Encoder
The HDVE-100 Encoder SDK from NTT Advanced Technology is a software development kit that provides functionality for H.264/AVC video encoding with high visual quality and a high compression rate. Because the H.264 encoding engine is completely multi-threaded, it enables fast parallel encoding processing in a multi-processor environment.

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AVC/H.264 HDTV Software Encoder

Log Periodic Antenna
The SAS-519-7 log periodic antenna from A.H. Systems is extremely lightweight, compact, and has been manufactured to ensure maximum gain and low VSWR. Whether testing inside a shielded enclosure or outdoors, this antenna will display efficient performance characteristics through the frequency range of 650 MHz to 7000 MHz.

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Log Periodic Antenna

WLAN Test Set
The MT8860B from Anritsu is an integrated one-box test set dedicated to testing 802.11 WLAN devices. It provides a high-speed measurement solution that is suitable for both production testing and design proving.

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WLAN Test Set

Antenna Software
FEKO is a comprehensive electromagnetic (EM) analysis software suite that can solve a wide range of electromagnetic problems. Typical antenna applications include analysis of horns, microstrip patches, wire antennas, reflector antennas, conformal antennas, broadband antennas, and arrays.

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Antenna Software

10- To 40-GHz Hybrid Coupler
The Krytar product line includes directional couplers, directional detectors, 3-dB hybrids, MLDD power dividers/combiners, detectors, terminations, coaxial adapters, and a power meter. Products cover the DC to 67-GHz frequency range.

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10- To 40-GHz Hybrid Coupler

System Design Software
Visual System Simulator (VSS) from AWR provides engineers with the ability to design the right system architecture as well as formulate suitable specifications for each of the underlying components in the communications designs. Communication standards presently supported include WiMAX/802.16d-2004/802.16e-2005 (mobile and fixed) and WLAN/802.11a/b/g.

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System Design Software

Hybrid Capacitors
The THQ4 series hybrid capacitors from Evans Capacitor are perfectly suited for defense and aerospace applications requiring high power in a compact, hermetic, tantalum package.

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Hybrid Capacitors

High-Power T/R Switch
The ACSW-5424 T/R switch from Advanced Control Components (ACC) is designed for high-power applications. ACC offers a series of high-power switches that operate up to 200 watts at frequencies as high as 6 GHz.

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High-Power T/R Switch
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