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Industry News

Low Cost Phased Array Antennas for BWA Applications

Introduction to a low cost electronically steered array offering true-time-delay beamforming for ultra-broad bandwidth
e-tenna Corp.
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Product Feature Low Cost Phased Array Antennas for BWA Applications e-tenna Corp. Laurel, MD Today, most broadband wireless access (BWA) customer premise equipment (CPE) use fixed-beam antennas. These are generally either reflector (dish), or flat-panel array antennas. These antennas have generally been selected based on value - meeting a...
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A Low Loss PTFE-based Bond Ply Material for Multi-layer PCB Applications

Introduction to a high performance, low loss laminate material for microwave telecommunications and high speed digital printed circuit board (PCB) applications
Taconic Advanced Dielectric Division
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Product Feature A Low Loss PTFE-based Bond Ply Material for Multi-layer PCB Applications Taconic Advanced Dielectric Division Petersburgh, NY Growing needs are developing for pure package high performance, low loss laminate and prepreg materials for microwave telecommunications and high speed digital printed circuit board (PCB) applications. Polytetrafluoroethylene (PTFE), perhaps...
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An Eight-channel YIG-tuned Frequency Synthesizer Array

Development of a new YIG-based frequency synthesizer array that provides up to eight independent frequency channels
Micro Lambda Wireless Inc.
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Product Feature An Eight-channel YIG-tuned Frequency Synthesizer Array Micro Lambda Wireless Inc. Fremont, CA Low phase noise is a staple of modern communication systems signal sources. For that reason system designers prefer yttrium iron garnet (YIG)-based sources. In addition, many of today's communications systems are required to operate at...
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Laser-activateable Plastics and Laser Devices that Deliver Flexible 3D MID Technology

Use of 3D molded interconnect device (MID) technology to improve the range of laser-activateable plastics and laser devices
LPKF Laser & Electronics
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Product Feature Laser-activateable Plastics and Laser Devices that Deliver Flexible 3D MID Technology LPKF Laser & Electronics Garbsen, Germany In an increasingly competitive market those companies carrying out electronic production, especially small- to medium-sized enterprises, require fast, efficient and cost-effective solutions to aid the prototyping and production process. What...
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Characteristics of a Large Bandwidth Rectangular Microstrip-fed Inserted Triangular Patch in a Circular Slot Antenna

Analysis of the characteristics of a rectangular microstrip-fed triangular patch in a circular slot antenna using the finite-difference time domain (FDTD) method
Yong-Woong Jang
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Technical Feature Characteristics of a Large Bandwidth Rectangular Microstrip-fed Inserted Triangular Patch in a Circular Slot Antenna The characteristics of a rectangular microstrip-fed triangular patch in a circular slot antenna have been analyzed using the finite-difference time domain (FDTD) method. The impedance and bandwidth of the proposed antenna greatly...
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Design of a Circularly Polarized 2 x 2 Patch Array Operating in the 2.45 GHz ISM Band

Presentation of the design of a sequential rotation corporate feed network for a 2 x 2 patch array
M. Mathian, E. Korolkewicz, P. Gale and E.G. Lim
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Technical Feature Design of a Circularly Polarized 2 x 2 Patch Array Operating in the 2.45 GHz ISM Band The design of a corporate feed network producing a sequential rotation for a 2 x 2 circular polarized patch array is presented in this article. The feed network has also...
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A New Planar Coupled-line Balun for Microwave Applications

Presentation of a simple and effective way to relax the narrow spacing requirement between coupled lines in conventional planar Marchand baluns
Jwo-Shiun Sun and Guan-Yu Chen
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Technical Note A New Planar Coupled-line Balun for Microwave Applications This article presents a novel inward collateral coupled-line balun. The new design provides an effective and simple way to avoid the narrow line spacing used in conventional planar Marchand baluns. A new structure with l /4 collateral coupled-lines has...
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Gain for Compressed Amplifiers

Examination of two approaches to the concept of gain, differential and ratiometric in compressed amplifiers
Earl McCune
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Tutorial Gain for Compressed Amplifiers There is growing interest in operating amplifiers into compression to achieve higher power-conversion efficiencies. It becomes constructive then to revisit the concept of amplifier gain, because when an amplifier operates in compression the general assumption that the output signal is directly proportional to the...
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System-level Filter Design Methodology for WLAN-OFDM Transceivers

Presentation of system-level filter design methodology to efficiently constrain the implementation loss and complexity of a digital orthogonal frequency division multiplex (OFDM) transceiver
B. Debaillie, B. Come, W. Eberle, S. Donnay and H. Minami
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Technical Feature System-level Filter Design Methodology for WLAN-OFDM Transceivers Orthogonal frequency division multiplex (OFDM)-based WLAN standards target wireless communications in the 5 GHz band for consumer multimedia applications. Digital OFDM transceiver ICs, based on frequency domain equalization, have been presented. However, it is still a challenge to design a...
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A Modern Militarized Rubidium Frequency Standard

Development of a new generation of rubidium frequency standards for use in tactical military applications
Datum Inc.
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Product Features A Modern Militarized Rubidium Frequency Standard Datum Inc. Beverly, MA The last decade has seen widespread use of commercial-off-the-shelf (COTS) electronic equipment in military applications, allowing modern technology to be utilized quickly and less expensively. For the most part, this process has been successful provided that the...
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