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This six-part series looks at five decades of the microwave industry recorded in Microwave Journal . In this fourth installment, we focus on the 1980s, a decade marked by such notable events as the birth of MTV, punk rock and “new wave,” the marriage of Prince Charles and Diana,...

A simple method for the extraction of the small-signal model parameters of a MOSFET is proposed. The intrinsic elements determined are described as functions of the extrinsic resistances. The parasitic elements are iteratively determined using the variance of the intrinsic elements as an optimization criterion. Good agreement is obtained...

The high power and wide bandwidth potential of GaN HEMT devices is well known. 1 RFMD has been developing high power amplifiers using GaN HEMTs for various applications. A 250 W amplifier in the 2.14 to 2.5 GHz band for wireless infrastructure applications in the WCDMA and WiMAX bands...

The advantages of anechoic chambers utilized for antenna measurements, as compared with conventional outdoor antenna test ranges, such as security, interference-free radiation and immunity to weather, are well known. Typical anechoic chambers comprise a shielded enclosure with the internal metallic surfaces covered by absorbing materials, a source antenna to...

A novel CPW-fed rectangle-trapezoid-rectangle shaped monopole antenna composed of a trapezoid and two rectangles is presented. In this context, the flat monopole structure improves the impedance bandwidth and reduces the size of the antenna dramatically. The ultra-wideband (UWB) antenna design plays a role as a filter. The coplanar waveguide...

Sustained growth in wireless communications and greater demands for bandwidth place tremendous pressure on component manufacturers to provide high performance, surface-mount technology (SMT) packaged products. The market is seeking low-cost, standard SMT components for high volume printed circuit board (PCB) assembly flow, in particular for applications such as point-to-point...

The world of telecommunications has experienced an accelerated period of change in recent years. In the past, many terminals such as mobile telephones and PDAs were only capable of transmitting and receiving signals based on a few different standards such as GSM and WCDMA. However, increasing numbers of functions...

In the ongoing race for reduced design costs and faster time to market, simulation efficiency remains the most important factor in electromagnetic field analysis. Simulation efficiency can be determined by the time taken to reach the final design, which is strongly influenced by the level of workflow integration, the...

In 1983, the SUCOFLEX 100 microwave cable family from HUBER+SUHNER impacted greatly on the market and to this day continues to hold its own as a leading product family. Its extensive product range and electrical and mechanical characteristics, allied to high reliability, has enabled the family to be widely...

Industry News Terabeam/HXI , also known as the Harmonix Division of Terabeam Corp. , was sold by its parent company, Proxim Wireless , to Renaissance Electronics Corp. (REC), Harvard, MA. Going forward, the new company name will be HXI LLC and HXI will be a wholly-owned subsidiary of REC....