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Industry News

The Design of Bandpass Filters Considering Frequency Dependence of Inverters

In general, practical inverters have frequency-dependent impedance or admittance. The equivalent circuits of several widely used inverters are investigated, consisting of ideal inverters plus frequency-dependent real and/or immittance parts. One of the...
Hee Yong Hwang and Sang-won Yun, Sogang University
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By using impedance or admittance inverters, microwave bandpass filters can be designed more conveniently with only one kind of resonator. Theoretically, the inverters have to be frequency independent. However, this is not true for practical cases. One of the most serious degradations in frequency response of a bandpass filter...
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Research@mwjournal.com

<I>Microwave Journal</I>'s second annual overview of microwave technology research projects currently being investigated by European academic institutions and commercial organizations
Richard Mumford, Microwave Journal European Editor
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Today's investment in and commitment to meaningful, commercially viable research will determine the shape and prosperity of tomorrow's microwave industry. Following its introduction in 2001 the second Microwave Journal guide to European research projects highlights the studies being undertaken by academic and commercial establishments to develop the innovations that...
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SAW Voltage-controlled Oscillators

Presentation of applications that use voltage-controlled surface acoustic wave oscillator technology to provide high performance telecom solutions
Robert P. Bernardo, Micro Networks
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Voltage-controlled surface acoustic wave (SAW) oscillators (VCSO) have been used for many years in both commercial and military applications. The low phase noise allows frequency multiplication to higher frequencies for use as sources, such as local oscillators in radar and other microwave systems. The excellent tuning linearity provides outstanding...
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Thales Launches CATS

Microwave Journal Staff
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French-based contractor Thales Airborne Systems used the 22-28 July Farnborough International Air Show to showcase its latest airborne electronic warfare (EW) product, the Compact Airborne Threat Surveyor (CATS). Operating within the E- to K-band (2 to 40 GHz) frequency band, CATS is a combined radar warning, electronic support (ES)...
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AMS Wins Radar Contracts in Ecuador, Hong-Kong and Turkey

Microwave Journal Staff
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The Anglo-Italian Alenia Marconi Systems (AMS) joint venture has been awarded air traffic control radars contracts in Ecuador, Hong-Kong and Turkey with a joint value of approximately US$34 million. Taking the countries in the order given, Ecuador's Civil Aviation Authority is acquiring a US$5 million air traffic management (ATM)...
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Rosoboronexport Promotes Detachable COMINT System

Microwave Journal Staff
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The Russian Federation's Moscow-based Rosoboronexport export agency is offering a detachable communications intelligence (COMINT) system that can be easily incorporated aboard any type of utility helicopter. Operating within the 30 to 2000 MHz frequency band, the package comprises an onboard equipment set (made up of four laptop computer-equipped workstations)...
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Indra Reveals New Air Defence Radar

Microwave Journal Staff
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Spanish contractor Indra has launched a new 2-D air defence surveillance radar under the trade name RAVEN. Operating within the I/J-band (8 to 20 GHz) frequency range, RAVEN is described as being a frequency modulated continuous wave (CW) type of equipment. It comprises an antenna/antenna drive assembly, a dual...
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FCC Initiates Proceeding to Promote Commercial Development of mm-wave Spectrum

Microwave Journal Staff
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The Federal Communications Commission (FCC) has initiated a proceeding to examine methods to promote the commercial development and growth of spectrum in the 71-76 GHz, 81-86 GHz and 92-95 GHz bands. Non-government users have never before occupied these bands. Specifically, the FCC seeks comments on its proposed rules to...
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Lockheed Martin Selects Endwave as Supplier for Comanche Radar Program

Microwave Journal Staff
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Endwave announced that it has entered into a multi-million dollar contract with Lockheed Martin Missiles and Fire control Co. to design the RF Receiver unit for the Comanche Radar system used in the Boeing RAH-66 Comanche Helicopter. The contract with Lockheed Martin, a primary sub-contractor to The Boeing Co....
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Raytheon Teams with Lockheed Martin for FAA Air Traffic Control Modernization

Microwave Journal Staff
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Raytheon Co. will join Lockheed Martin's national team to design and develop the next generation En Route Automation Modernization (ERAM) program for the Federal Aviation Administration (FAA). Raytheon will perform as a major subcontractor to Lockheed Martin, along with other air traffic management (ATM) industry leaders such as Computer...
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