Reference Articles 701 - 771 of 771
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S2079: Drivers for GaAs FET Switches and Digital Attenuators
From: Cobham Sensor SystemsDescription: Many of M/A-COM's GaAs FET switches and digital attenuators cannot operate directly with simple TTL or CMOS logic, but instead require external circuits to provide appropriate control voltages. This ...
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S2083: Surface Mounting Instructions for PQFN Packages
From: Cobham Sensor SystemsDescription: The layout of the surface mount board plays a critical role in product design and must be done properly to achieve the intended performance of an integrated circuit. An accurate PCB pad and solder ...
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3 GHz Broadband Silicon RFIC Amplifier - App Note (.pdf)
From: Avago TechnologiesDescription: Avago Technologies' ABA-31563 is a low current silicon gain block RFIC amplifier housed in a 6 lead SC-70 (SOT-363) surface mount plastic package. Providing a nominal gain of 21.9 dB and P1dB of 2 dBm ...
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How ARC Wave-X® Functions in a Mobile Phone
From: ARC Technologies, Inc.Description: Mobile phones present unique challenges to engineers tasked with controlling undesirable EMI and RF energy and minimizing Specific Absorption Rate (SAR) values, without sacrificing product ...
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Network Security for Device Servers
From: Sena TechnologiesDescription: Device servers deliver the appropriate network connection and physical interface for industrial device applications. Providing this function in a secure fashion is becoming a major concern for ...
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DSP GMSK Modem for Mobitex and Other Wireless Infrastructures
Description: Mobitex is a packetized wireless 900-MHz wide area network (WAN) that allows mobile/portable subscribers to transfer data, including e-mail, through the growing national and international network ...
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Good Practice Guide to the Measurement of Phase Noise
Description: The measurement of phase noise has become important in designing and developing systems for communications which pervade so much of our daily life. Without good low phase noise oscillators in systems ...
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Typical Performance Results for 3 GHz Attenuator 41-180
Description: This application note provides some typical results for a 41-180 attenuator measured using an HP8752 3 GHz Vector Network Analyzer. All the results were obtained with the attenuator placed in a ...
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Ethernet Is Moving Out of the Office Into Harsh Industrial Environments
Description: Ethernet is an ideal medium to transport large volumes of data, at speed, across great distances. Previously, multiple networks carrying specific protocols were installed side by side to carry out ...
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Agriculture Bank of China: VoIP-enabling 50,000 Branches
Description: Agricultural Bank of China (ABC), China's largest commercial bank, and one of the Global 500 with revenues exceeding $250 Billion US, was looking to decrease its long distance phone expenses between ...
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Akridge Real Estate Company Expands PBX Functionality
Description: The John Akridge Companies has more than 10.7 million square feet of upmarket commercial real estate under its management or in construction at 28 sites throughout the Washington DC area (18 are ...
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Boules Trading: UK to India - VoIP over ADSL Implementation
Description: Boules Trading is an established UK specialist textile business that designs and supplies children's clothing to High Street retailers' own brands such as BHS, John Lewis, Laura Ashley, Mothercare and ...
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Call Centers/Telemarketing Case Study
Description: During 2003, Chance Telecom was contacted by its affiliate in South America to present a solution for two of the biggest call center operations in the region. Both call centers were facing the same ...
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China Gov't. Deploys Nationwide VoIP Network
Description: The State Information Center (SIC) is the government body responsible for delivering information technology services throughout the People's Republic of China. The SIC has regional offices and ...
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Christies & Co.: Europe's Largest Real Estate Specialist Deploys Quintum
Description: One of the biggest concerns on the minds of business executives as they contemplate deployment of VoIP is whether end-users will notice any loss of quality or reliability. After all, phone service is ...
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Enterprise Solutions: Banking Application Note
Description: As they've grown over the years, banks and financial services firms have set up large numbers of local and regional offices across the country - and often around the world. These multiple locations ...
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Enterprise Solutions: Extending PBX Functions to Remote Offices AppNote
Description: In response to changing market demands and available resources, companies now maintain larger numbers of comparatively regional offices. In many cases, these offices are no more than a telecommuting ...
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Enterprise Solutions: Hospitality Application Note
Description: For today's traveler, telephone service is as much as part of a hotel stay as a bed and a hot shower. But hotels have traditionally had to charge high rates for phone service because of their own ...
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Enterprise Solutions: Long Distance Consolidation Application Note
Description: Companies with multiple offices typically maintain separate long distance service for each location. This can be costly, since smaller offices can't achieve the volume-based efficiency of a larger ...
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Enterprise Solutions: Multi-Office Communications Application Note
Description: In today's global environment, there are few organizations that don't need to make calls outside their local toll area. At a minimum, calls are required between two or more offices of one company, and ...
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Enterprise Solutions: Office-to-Office VoIP Trunking AppNote
Description: In today's global environment, there are few organizations that don't need to make calls outside their local toll area. At a minimum, calls are required between two or more offices of one company, and ...
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Flow Communications: IP Local Loop
Description: Historically, incumbent local exchange carriers (ILECs) have always stood between competitive telecom service providers and their customers. The ILECs' ownership of the local loop has meant that other ...
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ILS Off Shore Call Center Reduces Telemarketing Costs 50% with VoIP
Description: ILS Promotions is one of the UK's leading distributors of fine Asian textiles. The Bradford-based company wanted to initiate a major telesales initiative to promote its offerings and develop closer ...
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Keycom Deploys VoIP Across 28 Universities in UK
Description: British university students on a tight budget can find it difficult to manage their communications costs when they don't know how much telephone service or internet time they need to spend for their ...
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Labatt / OnlineTel Consumer Marketing Calling Card
Description: Consumer products are generally sold through multi-tier retail distribution. This makes it difficult for marketers of such products to build strong direct relationships with their customers. However, ...
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Metro Insurance VoIP-enables HQ and Remote Offices
Description: Metro Insurance Services is a growing wholesaler and underwriter headquartered in Union NJ. The company recently opened satellite offices in Rochester, New York and King of Prussia, Pennsylvania. To ...
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Nortel Networks/Quintum VoIP Implementation: Quebec Municipal Government
Description: VoIP networks and IP phones can offer tremendous benefits to organizations with multiple locations and intensive communications needs. That's why the St. Hyacinthe, Quebec school board, health care ...
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PacketSaver™ Multiplexing Feature
Description: Voice over Internet Protocol (VoIP) offers a wide range of benefits to both enterprises and communications/network service providers. These include lower costs, unified management of voice and data ...
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Premise Keepers: VoIP for Service Providers
Description: The future of convergence beckons consumers and providers of technology alike. Lower telecommunications costs, streamlined resource management, more efficient use of available bandwidth, and the ...
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Selecting a VoIP Solution at the Enterprise Edge
Description: The selection of an enterprise VoIP solution is a major decision. Voice service is critical to the operation of the business, so no one wants to implement a technology that will compromise call ...
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SP Solutions IVR/RADIUS Services for Calling Card, Prepaid and Other Payment Systems
Description: A service provider or carrier who is rolling out voice over IP (VoIP), requires either an existing, or a new, best-in-class RADIUS-compliant system to implement payment schemes such as calling cards, ...
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SP Solutions Local Loop Bypass Application Note
Description: Historically, incumbent local exchange carriers (ILECs) have always stood between competitive telecom service providers and their customers. The ILECs' ownership of the local loop has meant that other ...
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SP Solutions VoIP-Enabled Consumer Marketing Calling Card
Description: Consumer products are generally sold through multi-tier retail distribution. This makes it difficult for marketers of such products to build strong direct relationships with their customers. However, ...
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SP Solutions: IPhone4Less VoIP Network Management
Description: Service providers are faced with service delivery issues that were incomprehensible just a few years ago. Networks were clearly defined for voice or data. Today, however, VoIP is a disruptive ...
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Star Contact Call Center Leverages VoIP to Centralize Multi-National Operations
Description: As the Spanish-speaking market inside and outside of the U.S. continues to become more lucrative, companies are looking for more efficient and effective ways of serving Hispanic customers across North ...
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Taiwan Yuan-Fu Brokerage: 43 Offices Installed in Two Weeks
Description: In June of 2000, Mr. Henry Deng of the Yuan-Fu (English: MasterLink) Brokerage House began to consider voice-over-IP for his company. In just over a decade, MasterLink had grown into a major financial ...
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The Atlantic Club: VoIP-Enabling a Health Spa
Description: Tom Pear, President of the Atlantic Club, was looking for a cost effective way to converge the voice and data networks between the Atlantic Club's newest health club and day spa, located in Red Bank, ...
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US Navy Demonstrates VoIP with Tenors for Secure Ship-to-Shore Communications
Description: During the Navy's Trident Warrior '04 (TW04) During the Navy's Trident Warrior '04 (TW04) exercise in October 2004, the Automated Digital Network System (ADNS) demonstrated the Navy's ability to use ...
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VoIP for Calling Card Providers
Description: As voice and data networks continue to converge, the Internet provides calling card vendors with a powerful tool to increase profitability and deliver a broad range of value-added services. By routing ...
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VoIPex Wires Shopping Mall for VoIP
Description: Voice over IP can offer substantial cost savings to businesses of all sizes. But how do you sell smaller, less technically savvy business owners on an entirely new approach to voice communications? ...
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Comparison of DCS Architecture with Opto 22 Architecture
From: Opto 22Description: Today, control technology does provide commerciallyavailable off-the-shelf products that can be economically integrated into smaller refineries. These technologies provide the full functionality of ...
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How to Extend the Reach of IT
From: Opto 22Description: As you walk back to your office, you turn over in your mind the CEO's words: To avoid the cost of potential lawsuits claiming illness due to meat spoilage, the IT department you manage must set up a ...
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Information Technology Equipment Connected to Telecommunication Networks: Meeting the Requirements of UL 1950 Third Edition Section 6
Description: For manufacturers of computers, fax machines, telephones, modems, and other "information technology equipment" (ITE), April 1, 2000 will be more than just another April Fool's Day. This day will in ...
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TA047: High Voltage, Low Cost FETs for HPA MMIC Applications
From: Cobham Sensor SystemsDescription: M/A-COM is a longtime supplier to the military, Navy, Army and Air Force of GaAs MMICs, employed in active phased array radars. To date, the company's GaAs process of choice has been its Multifunction ...
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ANI-002: Synthesizer Evaluation Board Application Note
From: Cobham Sensor SystemsDescription: The Synthesizer Evaluation Kit is designed for evaluating M/A-COM's synthesizers. The kit consists of two PCB assemblies, a data cable and the software to program the synthesizer. The motherboard ...
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TA048: High Performance Wideband MSAG Gain Block/Driver Amplifier MMICs Using MLP Technology
From: Cobham Sensor SystemsDescription: The multi-level plating (MLP) process has been used to develop a family of wideband, low noise, generic gain block and driver amplifier MMICs operating up to 20 GHz. MLP implementation provides ...
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Looking Into Noise-Figure Measurement Uncertainty
From: Micronetics, Inc.Description: Microwave modeling software has enabled extremely low noise-figure (NF) amplifiers to become commonplace. There was a time when low-noise amplifiers (LNAs) below 0.7 dB were found only on specialized, ...
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Maximizing Eb/No (C/N) Accuracy (Application Note 701)
From: Micronetics, Inc.Description: The CNG series of generators have the ability to make highly accurate Eb/N0 or C/N ratios when used correctly. The basic operation of the CNG is depicted by the RF test block diagram in Figure 1, ...
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Using Noise for RF Receiver Built-In Test Applications
From: Micronetics, Inc.Description: Microwave thermal noise has long been employed for built-in test (BIT) of receivers and radiometers. Today's compact solid-state noise sources are broadband and extremely stable making them very ...
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SMR-4820 Compact Microwave Search Receiver
From: Cobham Sensor SystemsDescription: The SMR-4820 Microwave Receiver is a high-performance receiver designed for covert and clandestine type signals intelligence (SIGINT) operations requiring smaller-size equipment. RF preselection is ...
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TA041: A Surface Mount Plastic Packaged 1 to 18 GHz Low Noise Driver Amplifier
From: Cobham Sensor SystemsDescription: With the introduction of the MAAMGM0002, M/A-COM adds a cost-effective, highly manufacturable surface-mount plastic-packaged wideband driver amplifier to its array of standard products. The MAAMGM0002 ...
- S46 Microwave Switch System's "Just What You Need" Philosophy
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TA025: 10W CW Broadband Balanced Limiter / LNA Fabricated Using MSAG® MESFET Process
From: Cobham Sensor SystemsDescription: This paper presents the design and test data for a 10W broadband balanced limiter/LNA MMIC fabricated using MSAG MESFET process. The limiter is based on Schottky diodes and the 2-stage LNA is designed ...
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TA026: Application of Loadline Simulation to MSAG® Microwave High Power Amplifiers
From: Cobham Sensor SystemsDescription: Loadline theory is described as applied to high power microwave amplifiers. An example design with simulation is presented. The design of microwave GaAs high power amplifiers (HPAs) to demanding ...
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TA031: GaAs X-Band Multifunction Control MMIC Using the MSAG® Process
From: Cobham Sensor SystemsDescription: This paper describes efforts to achieve first pass design success for an X-band control MMIC consisting of multi-bit phase shifter, multi-bit attenuator, amplifier and serial-to-parallel converter ...
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Advantages of Ethernet Networks
From: Omron Electronics LLCDescription: Like Dick Tracy's wrist radio, the promise of Ethernet's wide-ranging use for remote troubleshooting and corrective action has been slow to show results for manufacturing. Only in the past few years ...
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AN3001: PIN Diode Vector Modulators
From: Cobham Sensor SystemsDescription: M/A-COM's PQFN vector modulator platform offers a means of varying attenuation and phase in a single surface mount package. These vector modulators offer linear phase and minimal amplitude ripple in ...
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Cascading Application Information
Description: Teledyne Cougar's comprehensive line of cascadable amplifiers includes many multiple stage amplifiers where some of the cascading has been integrated into a single package. This process makes the job ...
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Ethernet: How Fast Is It Really?
From: Omron Electronics LLCDescription: With the popularity and low cost of Ethernet hardware, industrial control systems are evolving toward this platform. Users be aware; proper network design and implementation is critical to fast ...
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GPS01: GPS Antenna Considerations for Automotive Applications
From: Cobham Sensor SystemsDescription: The design of active GPS antennas involves essentially three components: a patch element, filter, and low noise amplifier (LNA). Each of these components forms an important part of the overall antenna ...
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Process Automation System Independent Process Monitoring and Field Device Management
From: Endress+Hauser, Inc.
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TA002: Backside Mounting Procedures for Semiconductor Wafer Processing
From: Cobham Sensor SystemsDescription: The dramatic increase in demand for GaAs-based devices has required the rapid expansion of GaAs wafer fab capacity. The sharp growth in wafer fab output is expected to continue into the near future as ...
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TA015: Dicing Improvements: Yield Enhancement, Throughput Increase and Die Size Reduction
From: Cobham Sensor SystemsDescription: A strong wafer dicing operation is vital to the manufacturing process. At the dicing stage the wafer has the highest value. Everyone is aware of the wafer and die yield for the lot and they are ...
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TA022: Benefits and Challenges in Decreasing GaAs through Substrate via Size and Die Thickness
From: Cobham Sensor SystemsDescription: As the GaAs device market has shifted from primarily a low-volume military to a high-volume commercial customer base over the past decade, there has been significant pressure on manufacturers to ...
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TA024: A Transmitter Chip Set for Wireless Telemetry Applications
From: Cobham Sensor SystemsDescription: M/A-COM, Inc. has developed a highly integrated transmitter chip set for wireless telemetry applications under a U.S. Army Development Contract. The chip set is comprised of a voltage controlled ...
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TA027: Coupling Effects Between Lumped Elements
From: Cobham Sensor SystemsDescription: Coupling between various lumped circuit elements are characterized to establish the design rules for such components. Proximity effect is more pronounced in spiral inductors, however, it is less than ...
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TA028: GaAs MMIC Processes Enable Multi-Function Integration, Increasing Reliability While Reducing Chip Size and Cost
From: Cobham Sensor SystemsDescription: After some 20+ years of DoD technology development, the commercial wireless market has become the driving force for the GaAs MMIC industry. As the very low-cost requirements of the wireless industry ...
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TA029: Generic 2.5-W 60% Bandwidth C-Band MMIC Amplifier
From: Cobham Sensor SystemsDescription: This paper reports the design and test data of a generic 2.5-W two-stage C-band MMIC power amplifier developed using the MSAG® MESFET process. We measured typically a minimum PAE of 45% and 2.5W ...
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TA038: High Performance Wideband Amplifiers For Radar And Satcomm Applications
From: Cobham Sensor SystemsDescription: A series of high performance wideband MMIC low noise, gain block and driver amplifiers has been developed for applications in next-generation radar and satcom equipment. These new amplifiers operate ...
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TA039: Digital Polar Design Facilitates Multimode Transmitters
From: Cobham Sensor SystemsDescription: Tactical military radio requirements have seen significant changes over the last several years. In order to meet the communication needs of Future Combat Systems, programs like the Joint Tactical ...
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Wireless DeviceNet Leaps Material Handling Barriers
From: Omron Electronics LLCDescription: Turn a motorized conveyor system inside out and give the pallets the semi-autonomous capability to transport products from one station to the next for the type of product being carried. That level of ...
