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The humble signal generator has come out of its modest, functional shell and taken on a streamlined, compact, state-of-the-art persona with the development of the 3410 series. This family of digital RF signal generators has evolved in response to the worldwide growth of second- and third-generation wireless communications systems...

A new family of single- and dual-branch converter integrated circuits has been introduced for use in mobile infrastructure base stations. The new CV series converters are all priced below $10 in volume and are available in a 6 x 6 mm QFN package, as shown above. Their small size...

Double-balanced mixers are used extensively in transmitters and receivers. For frequencies below 5 GHz, the designs are normally realized using ferrite-based transformers, because they are very compact and their technology is mature. As the operating frequency increases, distributed element baluns become smaller in size and more attractive. Semiconductor-based mixers...

I find it hard to believe that it has been 12 years since Howard Ellowitz wrote a similar message announcing his retirement and introducing me as the new Publisher/Editor of Microwave Journal . Now it is my turn to slow down a little and find some breathing room. With...

Each of the many process technologies that can be used for RF power amplifiers - GaAs HBT, PHEMT, InGaP HBT and silicon RF MOSFET - have different advantages, such as better frequency characteristics, wider linearity and higher power capability. A fundamental comparison of the different process technologies is shown...

The quadrature demodulator is used in either heterodyne or homodyne receivers. In commercial communication receivers, the local oscillator frequency ranges from a few kilohertz to a few gigahertz. It is usual to test the individual part with a single tone to avoid the complexity of the baseband waveform. The...

There are several reasons for the wide use of printed transmission lines. They are simple to produce, they operate over a wide bandwidth, and have small weight and dimensions. The earliest form of printed transmission lines was the stripline ( Figure 1a ). 1,2 The printed stripline consists of...

COMPONENTS SMT Compatible Multi-interface Connector Series This 1.0/2.3 multi-interface connector series features an SMT design that facilitates PCB assembly and also accommodates tight packaging density. These connectors are available with 2, 3 and 4 coaxial interface combinations in the same housing. Frequency coverage is from DC to 2 GHz...

INDUSTRY NEWS Spectrum Control Inc. has acquired all of the outstanding common stock of FSY Microwave Inc. The purchase of FSY will enable Spectrum Control to expand its existing SPECWAVE line of ceramic-based wireless products and custom engineered wireless solutions. Texas Instruments Radio Frequency Identification Systems announced the launch...

Inductor Products Catalog This 10-page catalog features the company's WL series of wire wound chip inductor products, designed to provide excellent performance at competitive prices. Product descriptions, features, applications, specifications, circuit applications, outline drawings and selection guides are provided. American Technical Ceramics, Jacksonville, FL (631) 622-4700. Circle No. 200...