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Microwave Journal

January 2007

January 2007 Issue

Volume: 0

Edition: 1

The Use of Broadband Military Antenna Technology in Modern Communications Systems

January 12, 2007

Microwave Journal

For many years, military applications have required broad bandwidth communication links, incorporating antennas that have a similar broadband capability. Often the antennas must operate over a frequency range of several octaves. Consequently, antenna structures that have multi-octave capability have been designed and manufactured and these techniques are now proving...

Memory Effect Minimization and Wide Instantaneous Bandwidth Operation of a Base Station Power Amplifier

Linear amplification and reduction of the memory effect of a wide bandwidth signal have been realized for a next generation base station power amplifier. Using a simple nonlinear LDMOS model, the third-order intermodulation distortion current is analyz...

January 15, 2007

Jeonghyeon Cha, Ildu Kim, Sungchul Hong and Bumman Kim, Pohang University of Science and Technology (POSTECH), Gyeongbuk, South Korea, Jong Sung Lee a

The next generation of mobile communication systems will provide a wide variety of new services, from high quality voice to high definition video and high data-rate wireless channels. Moreover, the systems will provide combined services, including the established wire and wireless communications and broadcasting networks. In order to support...

Dual-band Assembly of Integrated Short Backfire Antennas

A dual-frequency assembly of two short backfire (SBF) antennas, one large for low frequencies (LF) and one small for high frequencies (HF), is described in this article. The two antennas are located on the same axis and, since they have a common reflec...

January 16, 2007

H.D. Hristov and R. Feick, Universidad Técnica Federico Santa María, Valparaíso, Chile, R.J. Urumov and G.S. Kirov, Technical University of Varna, Bul

The short backfire (SBF) is a highly effective aperture antenna of simple and compact construction. Basically, it consists of three elements: two parallel reflectors, large and small, spaced a half-wavelength apart, which form a leaky resonant cavity, and a cavity feed (half-wave dipole, 1–3 waveguide or horn, 4,5 or...

Broadband Design of a Small Non-symmetric Ground λ/4 Open Slot Antenna

The broadband design of a small size, λ/4 open slot antenna is investigated. By properly choosing the dimensions of the open slot and of the rectangular conducting plate, which is connected to the end of the 50 Ω microstrip-line feed, a broad...

January 16, 2007

Wen-Shan Chen and Kuang-Yuan Ku, Southern Taiwan University of Technology Tainan Hsien, Taiwan, ROC

The wireless communication industry is developing rapidly and wireless communication products, PDAs, laptops and cell-phones are becoming a necessity of life. Communication systems need a wide frequency bandwidth to transmit and receive multimedia information at high data rates. Mobile wireless communication products must be easily portable and cheap to...

The Requirements and Procedures for Testing WiMAX Equipment

The potential for WiMAX technology is driving its development at a pace aimed at effective mass deployment. This article outlines the requirements necessary for the development of specific test procedures and equipment.

January 17, 2007

Jan E. Prochnow, Rohde & Schwarz Munich, Germany

WiMAX is a technology for fixed, nomadic and mobile applications that promises the delivery of broadband wireless access to the masses. For fixed and portable access applications, a delivery capacity of 40 Mbps per channel can be expected for typical cells with a radius of 3 to 10 km....

A Triple-band Polygonal Slot Antenna for WiMAX Applications

A printed polygonal slot antenna, fed by a 50 Ω microstrip-line and with two narrow strips for three-band operation, is proposed and experimentally studied. The polygonal slot antenna was found to be broadband (1.85 to 5.83 GHz). When two narrow s...

January 17, 2007

Wen-Shan Chen and Bao-Hung Kao Southern Taiwan University of Technology Tainan Hsien, Taiwan, ROC

In recent years, wireless communications have progressed very rapidly. The IEEE 802.16 Working Group has created a new standard, commonly known as WiMAX (Worldwide Interoperability for Microwave Access), for a low cost, broadband, wireless access at high speed, which is easy to deploy. 1 WiMAX technology can reach a...

A 60 GHz Millimeter-wave CMOS RFIC-on-chip Dipole Antenna

This article presents a 60 GHz millimeter-wave RFIC-on-chip dipole antenna, fabricated with a 0.18 μm CMOS process. A planar dipole-antenna structure with an integrated microstrip via-hole balun was adopted to design this RFIC-on-chip antenna. The...

January 17, 2007

H.R. Chuang, S.W. Kuo, C.C. Lin and L.C. Kuo National Cheng Kung University Tainan, Taiwan, ROC

There is an increasing demand for broadband multimedia components to satisfy the ever-increasing capacity of wireless networks. In particular, for dense local communications, the 60 GHz band for wireless personal area network (WPAN) applications is of special interest for short-range communications, due to the RF attenuation of the atmospheric...

East Meets West

January 12, 2007

Microwave Journal

As I write this, I’ve just returned from the Asia Pacific Microwave Conference (APMC) in Yokohama, Japan. Having never been to Japan, this was a new experience for me. While I enjoyed the cultural differences that Japan offers, I was also struck by the similarities between East and West....

High Frequency Circuit Material for Base Station Applications

January 10, 2007

Rogers Corp., Advanced Circuit Materials Division Chandler, AZ

A replacement product for PTFE woven glass circuit material has been introduced that provides superior mechanical and thermal properties, uses the RO4000 ® resin system for ease of fabrication and is a cost competitive option for base station antenna applications (see Figure 1 ). The RO4230™ high frequency laminate...

Perfectly Calibrated Ports for EM Analysis

January 11, 2007

Sonnet Software Inc., North Syracuse, NY

Product Feature:

Perfectly Calibrated Ports for EM Analysis

Sonnet Software Inc., North Syracuse, NY

Port calibration designed to enhance high frequency design methodology in the field of radio frequency integrated circuit design

6 × 6 mm Quad-band RF Transmit Modules for High Efficiency EDGE Operation

January 18, 2007

TriQuint Semiconductor Inc., Hillsboro, OR

In today’s fast paced mobile handset market, design houses and manufacturers are challenged to meet a variety of targets to satisfy network provider’s high expectations in cellular and multimedia phones. Design cycle time, performance, feature requirements, form factor, quality and cost targets remain dominant selection criteria for mobile phone...

CST MICROWAVE STUDIO®

January 17, 2011

CST MICROWAVE STUDIO® (CST MWS) is the leading edge tool for the fast and accurate simulation of high frequency (HF) devices such as antennas, filters, couplers, planar and multi-layer structures and SI and EMC effects.

CST STUDIO SUITE(tm)

January 17, 2011

CST STUDIO SUITE(tm) comprises CST's 3D EM simulation tools: the renowned CST MICROWAVE STUDIO(r) for high frequency applications, CST EM STUDIO(tm) for low frequency and statics and CST PARTICLE STUDIO(tm), for charged particle dynamics, and is rounded off with CST DESIGN STUDIO(tm) for synthesis and circuit simulation.

All in one: The R&S FSUP combines a spectrum analyzer up to 50 GHz with a phase noise tester

January 17, 2011

With the R&S FSUP, Rohde & Schwarz offers for the first time an instrument that is specially designed for measuring phase noise and for characterizing RF signal sources.

EMI Test Receiver R&S ESU: fast and accurate interference measurements

January 17, 2011

The R&S ESU from Rohde & Schwarz is a new family of CISPR16-1-1-compliant EMI test receivers that meet all civil and military standards for electromagnetic interference measurements. A new FFT-based test method speeds up the measurement.

R&S ZVA40: High flexibility for network analysis in development

January 17, 2011

The R&S ZVA40 from Rohde & Schwarz is a new network analyzer with a frequency range from 10 MHz to 40 GHz. This high-end instrument allows you to perform measurements on passive and active components as well as antenna measurements in radar/satellite applications.

New method: Rohde & Schwarz considerably simplifies pulse profile measurements

January 17, 2011

Rohde & Schwarz has now expanded the high-end Network Analyzer R&S ZVA by the software option for pulsed measurements. The R&S ZVA-K7 enables pulse profile measurements on semiconductor components and antenna/radar systems.

Even more WiMAX: Firmware update for R&S SMx signal generator family

January 17, 2011

Equipped with the R&S SMx-K49 option, the Signal Generators R&S SMU200A, R&S SMATE200A and R&S SMJ100A generate signals in accordance with the IEEE 802.16-2004, IEEE 802.16e-2005 and WiBro standards.

TPA v5

January 17, 2011

TPA v5 Targets Package Extraction and Design Automation Needs for Advanced SiP, CSP and Stacked Packaging Technologies

COMPACT DIRECTIONAL COUPLER FOR RADAR APPLICATIONS

January 17, 2011

Response Microwave, Inc. a global specialist in providing RF/Microwave customer solutions, is pleased to announce the availability of its new series of directional couplers for power sampling and VSWR monitoring in military radar applications.

RUGGEDIZED RJ45 FACILITATES QUICK-CONNECTION AND IP68

January 17, 2011

Response Microwave, Inc. an experienced specialist in providing customer solutions, is pleased to announce the availability of a new ruggedized RJ45 connection method which is ideal for harsh environment Ethernet connectivity.

HIGH POWER QUAD HYBRID SUPPORTS RADIO AND RADAR TX APPLICATIONS

January 17, 2011

Response Microwave, Inc. an experienced specialist in providing customer solutions, is pleased to announce the availability of its’ new high power 90° hybrid for use in many radio and radar Tx architectures.

HIGH POWER QUAD HYBRID SUPPORTS PMR AND HOMELAND SECURITY APPLICATIONS

January 17, 2011

Response Microwave, Inc. an experienced specialist in providing customer solutions, is pleased to announce the availability of its’ new high power 90° hybrid for use in private mobil radio applications.

ROTARY JOINT SUPPORTS COMMERCIAL SHIP BOARD ANTENNA ROTATION

January 17, 2011

Response Microwave, Inc. an experienced specialist in providing customer solutions, is pleased to announce the availability of its’ new coaxial rotary joint focused on facilitating antenna rotation on maritime radar applications.

ADAPTORS FACILITATE INTERCONNECTION IN SYSTEM ARCHITECTURES

January 17, 2011

Response Microwave, Inc. an experienced specialist in providing customer solutions, is pleased to announce the availability of coaxial adaptors focused on system connectivity.

1.6/5.6 DIN CONNECTION FOR CENTRAL OFFICE FACILITATES PACKAGING DENSITY

January 17, 2011

Response Microwave, Inc. an experienced specialist in providing customer solutions, is pleased to announce the availability of the COMPEL series of 1.6/5.6 connectors, adaptors, monitor points and cable assemblies for use in CLEC, central office and co-location areas.

NEW BROCHURE DETAILS PASSIVE COMPONENT AND CONNECTIVITY PRODUCTS AND CAPABILITIES

January 17, 2011

Response Microwave, Inc. a global specialist in providing RF/Microwave customer solutions, is pleased to announce the availability of its new product selection guide.

COMPACT, HIGH POWER QUADRATURE HYBRID FOR WIMAX APPLICATIONS

January 17, 2011

Response Microwave, Inc. a global specialist in providing RF/Microwave customer solutions, is pleased to announce the availability of its new application specific series of economical high power 90° quadrature hybrid couplers for use in WiMAX applications.

PUSH-ON SMA PLUG FACILITATES QUICK-CONNECTION

January 17, 2011

Response Microwave, Inc. an experienced specialist in providing customer solutions, is pleased to announce the availability of a new push-on SMA male connector that accommodates universal mating to all threaded SMA female connectors.

MECA RoHS Compliant Bias Tees

January 17, 2011

RoHS compliant Bias Tees cover wireless band applications from 0.500 – 2.500 GHz.

MECA WiFi / WiMAX Splitters

January 17, 2011

MECA offers RoHS Compliant, WiFi / WiMAX Splitters for high performance, broadband LAN’s and mobile applications (2.4 GHz & 5.5 GHz).

50FHAO Series

January 17, 2011

The “50FHAO” series from JFW offers superior performance and affordable pricing.

New 300 & 500-Watt Attenuators from JFW!

January 17, 2011

The “50FHDQ” series from JFW offers superior performance and affordable pricing.

50HB-XX

January 17, 2011

The latest affordable attenuation solution from JFW is the 50HB-XX.

50P-1605 SMA

January 17, 2011

50P-1605 SMA offers solid state reliability from 15-3000 MHz.

Reactive Power Divider/Combiner

January 17, 2011

The latest 1x2 reactive power divider/combiner from JFW Industries, model 50PD-304, offers a bandwidth of 800-4000 MHz.

50R-249

January 17, 2011

The 50R-249 provides variable attenuation from DC-2500 MHz.

New Continuously Variable Attenuator

January 17, 2011

The 50R-345 from JFW Industries provides up to 12dB of continuously variable attenuation from 800-2200 MHz.

50S-1268

January 17, 2011

JFW’s latest solid-state switch allows you to hot switch up to 100-Watts of continuous RF power.

50S-1310 SMA

January 17, 2011

The 50S-1310 SMA offers solid state reliability from 20-4300 MHz.

NEW ELECTROMECHANICAL SWITCH FROM JFW!

January 17, 2011

The 50S-1313 is the latest 1P2T, Failsafe RF switch from JFW Industries.

50S-1337

January 17, 2011

The 50S-1337 from JFW’s is designed to meet the needs of wireless system engineers.

50S-1352

January 17, 2011

New high-power, RF “hot switch” covers Cellular, PCS, UMTS frequencies and beyond.

50S-1530

January 17, 2011

The 50S-1530 is a 1P2T solid-state switch capable of handling 50-Watts of RF power from 20-2500 MHz.

50T-334

January 17, 2011

The 50T-334 is 50-Ohm, 50-Watt RF termination (1000 Watts peak).

75P-033

January 17, 2011

JFW’s 75P-033 is a 75-Ohm programmable attenuator with 127 dB of range and 1 dB resolution.

A Low Profile Multi-band U-shaped Aperture-coupled Microstrip Antenna with a Coil

In this article, an L-shaped probe-fed, U-slot patch antenna with a coil element is studied. The L-shaped probe feed is used to enhance the impedance matching, which is necessary because of a low radiation resistance in the usable band. The coil contri...

January 17, 2007

Yong-Woong Jang Keukdong College Chungbuk, Korea Hyun-Chul Go AMC Centurion Korea Co. Ltd. Seoul, Korea

Microstrip patches are an attractive type of antenna because of their low cost, conformability and ease of manufacture. The aperture-coupled configuration 1 also provides the advantage of isolating spurious feed radiation by using a common ground plane. The primary barrier to the implementation of these antennas in many applications,...

New Products

January 18, 2007

Microwave Journal

10 W Power Divider This new line of 10 W power dividers is designed for antenna and test applications. The model 151-201-008 is an eight-way, 50 Ω power divider that operates in a frequency range from 800 to 2000 MHz. This unit offers 22 dB typical isolation, 1.5 dB...

Northrop Grumman Expands Radar Role in Missile Testing

January 15, 2007

Microwave Journal

In the fall, Northrop Grumman-developed C-band radar for the US Navy participated in the successful test of the Ground-based Midcourse Defense (GMD) system, marking the first time a Navy Strategic Systems Program radar has been used by the US Missile Defense Agency (MDA) to optimize data collection and enhance...

Raytheon Achieves Satellite Communications Milestone

January 15, 2007

Microwave Journal

Raytheon Co.’s Navy Multiband Terminal (NMT) is the first advanced, next-generation satellite communications (SATCOM) system to successfully log on to and communicate with the US Government’s Milstar SATCOM system, using low and medium data rate waveforms. The system will provide naval commanders and sailors with greater data capacity, as...

Lockheed Martin’s Compact Kinetic Energy Missile Successful in Flight Test

January 15, 2007

Microwave Journal

Lockheed Martin successfully conducted a guided test flight of its Compact Kinetic Energy Missile (CKEM) against a main battle tank recently at Eglin Air Force Base, FL. All objectives for this test were achieved. In addition to demonstrating CKEM’s capability against an armored target, the test also gathered missile...

Triumvirate Awarded Multi-role in R&D

January 15, 2007

Microwave Journal

On behalf of the armed forces of Italy and Sweden, FMV, Swedish Defence Materiel Administration, has awarded Saab Microwave Systems AB, Selex Sistemi Integrati S.p.A and Elettronica S.p.A the second phase of a three-phase research and development programme supporting the development of the next generation of microwave multi-function, multi-role...

MEAD Consortium Explores MEMS Technology

January 15, 2007

Microwave Journal

QinetiQ, acting as the prime and in partnership with 21 other organisations from industry, academia and the UK defence supply chain, has formed the MEMS Applications for Defence (MEAD) consortium. Its remit is to take a new approach to developing MEMS technology for defence purposes in a UK Ministry...

Remodelling of Paris Command and Control Centre

January 15, 2007

Microwave Journal

The French armaments directorate (DGA) is completely restructuring the information and communication systems of the Paris Strategy Centre, in a project known by the French abbreviation OE SIC PSP. The associated contract worth around €70 M has been awarded to EADS Defence & Security Systems and Thales, along with...

Innos Supports UK Nanotechnology NoE

January 15, 2007

Microwave Journal

Innos is providing integration engineering support and prototyping services for the UK Framework 6 Network of Excellence SiNANO Project. The consortium is funded by the European Union, with the Engineering and Physical Sciences Research Council (EPSRC) providing additional access to the Innos fabrication facility to the different UK academic...

Alcatel-Lucent: Leader in Comms Solutions

January 15, 2007

Microwave Journal

Alcatel and Lucent Technologies have completed their merger transaction and begun operations as the world’s leading communication solutions provider. The new company, Alcatel-Lucent, with one of the largest global R&D capabilities in communications and the broadest wireless, wireline and services portfolio, is incorporated in France, with executive offices located...

IEEE Begins Wireless Communications Standard for Power Systems

January 15, 2007

Microwave Journal

Wireless data communications offers many benefits in power systems, but it also presents security, reliability and other concerns. In order to help the industry address the potential of this technology, the IEEE has begun work on a new standard to create functional, performance, security and on-site testing practices for...

RFID-based Strategies for Aerospace and Defense Supply Chains

January 15, 2007

Microwave Journal

Aerospace and defense companies are increasingly looking for ways to gain competitive advantage through the enhanced management of supply chains and assets. By 2011, the A&D Radio Frequency Identification (RFID) market is expected to realize revenue in excess of $2 B. One area that shows particular promise for the...

ZigBee Emerges as the Wireless Mesh Network of Choice

January 15, 2007

Microwave Journal

In-Stat believes that because of the clarity of the ZigBee standard, the organizational strength of the ZigBee Alliance and the involvement of several of the world’s largest semiconductor companies, ZigBee will emerge as the dominant wireless mesh networking technology. Wireless mesh networks are a mosaic of proprietary and non-proprietary...

Over 500 Million Mobile Broadband Users by 2010

January 15, 2007

Microwave Journal

According to Strategy Analytics’ recent report, “Beyond 3G: Looking for True Mobile Broadband,” new alternative technologies will contribute just six percent of the forecast 500 million mobile broadband users globally by 2010. Despite all the hype surrounding alternative technologies, like WiMAX, it is iterations of existing technologies which will...

Around The Circuit

January 15, 2007

Microwave Journal

Industry News Kulicke & Soffa Industries Inc . closed the previously announced purchase of Alphasem , a supplier of die bonder equipment, from Dover Technologies International Inc., a subsidiary of Dover Corp. The purchase price was $27.1 M in cash, after a working capital adjustment and subject to further...

Catalog Update

January 18, 2007

Microwave Journal

Application Note This application note, “Preamplifiers and System Noise Figure,” is designed to assist engineers in learning how to improve the accuracy of their measurements by using a low noise amplifier in front of a spectrum analyzer to reduce the effective noise figure of RF and microwave test systems....

The Book End

January 18, 2007

Microwave Journal

Phased Array Antennas: Floquet Analysis, Synthesis, BFNs and Active Systems A.K. Bhattacharyya Wiley Interscience • 514 pages; $125 ISBN: 0-471-72757-1 The purpose of this book is to present in a comprehensive manner the analysis and design of phased array antennas and systems. The book includes recent analytical developments in...