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vor 8 Jahren

7-2015

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Fachzeitschrift für Hochfrequenz- und Mikrowellentechnik

Test & Measurement LCR

Test & Measurement LCR Meter Provides Low-Frequency Impedance Testing Allows Manufacturers to Perform Required Impedance Testing in Highly Cost-Effective Manner Keysight Technologies, Inc. today introduced three low-frequency options for its E4982A LCR meter. With these new options, the E4982A is well suited for RF inductor, coil and EMI filter manufacturers that are required to perform impedance testing at various frequencies. Today’s smart phones and other electronic equipment often utilize components such as inductors and EMI filters. Ensuring these passive components operate as expected in the real-world requires impedance testing during production, as well as during quality assurance. Keysight’s new E4982A LCR meter options allow manufacturers to easily test passive components at desired frequencies. The options cover the 1-MHz to 300-MHz (Opt. 030), 500-MHz (Opt. 050) and 1-GHz (Opt. 100) frequency ranges. These new frequency range options complement the E4982A’s existing 3-GHz measurement capability (Opt. 300). Frequency upgrade options are also available. “Impedance testing is a critical step in the manufacture of passive components,” said Akira Nukiyama, vice president and general manager of Keysight’s Component Test Division. “Performing this testing cost-effectively is just as critical. With our new low-frequency LCR meter options, manufacturers now have the ability to perform the required testing in a highly cost-effective manner.” Keysight’s E4982A LCR meter is used in passive component manufacturing where impedance testing is required. The meter features high measurement speed, 0.8 percent basic accuracy with unparalleled measurement repeatability, and a wide impedance measurement range in all frequency options. Its powerful functions make it ideal for use in manufacturing, R&D and quality assurance. ■ Keysight Technologies UK Ltd www.keysight.co.uk News AR Europe announces new distribution partnership with 3ctest (China) 3ctest (Suzhou 3ctest Electronic Co. Ltd.), one of the leading manufacturers in EMC instrumentation recently appointed AR Europe as their exclusive distribution partner in Europe for their pulsed EMI products. This new agreement follows 3ctest’s decision to expand its market outside of China. The extensive expertise and knowledge together with strong brand recognition and established distribution network makes AR Europe an ideal partner for 3ctest. “AR is a well-known international company with sales and service networks covering all over the world. It is a great honour that 3Ctest can cooperate with AR Europe.” Said Bill Huang, General Manager of 3ctest. “With the help of the AR platform, our product quality and service can move on to a new level. Our cooperation is the beginning of a win-win future.” Ger Kabel, MD of AR Europe added, “We are very excited that AR Europe is launching 3ctest’s products in Europe and I am confident the line will be a great success as we have a great team and very capable sales associates all over Europe. 3ctest’s products fit perfectly with our existing portfolio.” AR Europe www.ar-deutschland.com 3ctest www.3c-test.com 48 hf-praxis 7/2015

RF & Wireless Components GaN Bias Controller and Sequence Module M/A-COM Technology Solutions announced a GaN bias controller and sequencer for fixed and pulsed negative gate biasing. The MABC-001000-DP000L module provides proper gate voltage and pulsed drain voltage biasing for a device under test (DUT). The module also provides bias sequencing, ensuring that the pulsed drain voltage cannot be applied to a device under test unless the negative gate bias voltage is present. The bias controller module solution offers protection and dynamic control of all MACOM High-Power transistors including MACOM’s broad GaN portfolio. The solution consists of two functional elements arranged vertically on the customers’ board to conserve size, weight and cost. The first functional element referred to as Module 1 is patterned and populated directly onto the customer board. The second functional element, referred to as Module 2, uses the land pattern of Module 1 and interconnects vertically through Module 1. The primary function of Module 1 is drain switching, while the main function of Module 2 is to provide the customer with easy gate switching. The device is capable of robust GaN protection at any power up/ power down sequence and has a target total switch transition time of 500 ns. It features an open drain output current of 200 mA for an external MOSFET switch drive, gate bias output current of 50 mA for heavy RF compression, and an internal thermistor or external temperature sensor voltage for Gate Bias Sum. The recommended approach is to utilize both module functions. The overall MABC-001000- 000DPM can be co-located in heavy EMI/RFI environments with little or no extra filtering. Additional features include optional remote temperature sensing and temperature, fast gate switching, remote gate adjust, and buffered multi-gate bias. With 30 dB typical EMI/RFI rejection at all I/O ports, the MABC-001000-DP000L is RoHS compliant and 260° reflow compatible. ■ M/A-COM Technology Solutions Holdings, Inc. www.macom.com Software Software Simplifies Multi-Emitter Scenario Generation for Aerospace/ Defense Applications parameters manually can be a daunting task. With the MESG capability, Signal Studio simplifies threat interleaving for ECM system test applications such as sorting and identification, subsystem interface management and threat correlation. The Keysight N7660B Signal Studio for multi-emitter scenario generation (MESG) provides aerospace/defense engineers with performance-optimized, Keysightvalidated multi-emitter signals that they can download to one or more Keysight N5193A UXG agile signal generators for effective testing of electronic countermeasures (ECM) systems. Creating realistic multi-emitter scenarios is a complex challenge that involves correctly interleaving multiple pulse trains as well as identifying, counting and prioritizing pulse collisions. Managing all these A graphical user interface allows test engineers to easily configure radar parameters such as frequency, amplitude and pulse width, and then interleave multiple radar emitters. This includes the ability to combine radars into scenarios using dropped-pulse reports to optimize pulse density. Engineers also can reduce pulse collisions by changing emitter start times, priorities and pulse-repetition intervals, by toggling emitters on and off, and by adding more UXG signal generators to the simulation. Engineers can download the multi-emitter scenarios, created in Signal Studio, directly to one or more UXGs as pulse descriptor word (PDW) lists. The UXG provides phase-coherent frequency and amplitude transitions as fast as 180 ns, timing resolution of 2 ns, and spurious-free dynamic range of -70 dBc. Off the shelf, the UXG is a powerful building block that engineers can use as either a dependable local oscillator or a scalable threat simulator. Its capabilities enable aerospace/defense engineers to generate increasingly complex simulations that get closer to reality for increased confidence in ECM system performance. ■ Keysight Technologies, Inc. www.keysight.com hf-praxis 7/2015 49

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