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keysight

Basics of QAM reception and its measurement

December 3, 2020 By dherres

A conventional AM broadcast generally begins in the studio as a music or voice audio signal. The audio signal modulates the amplitude of a radio-frequency electrical signal. This AM signal–also referred to as double-sideband amplitude modulation to distinguish it from single-sideband modulation–produces equal frequency sidebands on either side of the center frequency. In single-sideband modulation […]

Filed Under: FAQ, Featured, Test and Measurement Tips Tagged With: FAQ, keysight

The back and forth of interferometer technology

September 15, 2020 By dherres

Conceptually, the interferometer is a relatively simple instrument that compares two distances typically differing only by a slight amount. Two waves, often coherent light waves, reflect from standard mirrors mounted at the object under investigation. The light from one mirror passes through a half-silvered mirror while the light from the other reflects from the back […]

Filed Under: FAQ, Featured, Test and Measurement Tips Tagged With: FAQ, keysight

The complexity of wireless receiver testing

June 3, 2020 By Lee Teschler

Eric Hsu | Keysight Technologies, Inc. The demand for wireless communications now challenges the physical limitations of today’s wireless communications systems. Interference can easily arise when systems operate in a crowded wireless environment using a shared spectrum. Signal congestion makes the process of designing, testing, and isolating system problems more complex. In the next few […]

Filed Under: Applications, FAQ, Featured, Test and Measurement Tips, Wireless Tagged With: FAQ, keysight

Microwave Symposium goes virtual, timeframe August

May 1, 2020 By Martin Rowe

The 2020 IEEE International Microwave Symposium will be a virtual event in August.

Filed Under: 5G, Featured Tagged With: keysight, rohdeschwarz

The basics of 5G’s modulation, OFDM

April 16, 2020 By Bob Witte

5G modulation

Orthogonal frequency-division multiplexing has become the standard modulation format for 5G New Radio. Lean how OFDM works and how it’s used. Orthogonal Frequency Division Multiplexing (OFDM) is an efficient modulation format used in modern wireless communication systems including 5G. OFDM combines the benefits of Quadrature Amplitude Modulation (QAM) and Frequency Division Multiplexing (FDM) to produce…

Filed Under: 5G, FAQ, Featured Tagged With: keysight

How to test USB4 designs

April 7, 2020 By Lee Teschler

Designers must look at and characterize the entire Type-C ecosystem when testing USB4 designs. Jit Lim • Keysight Technologies The USB Type-C connector has received significant adoption with ubiquitous standards like USB, DP, and Thunderbolt. The next-generation variant of USB is USB4. USB4 will transmit and receive on all four lanes of the Type-C connector […]

Filed Under: FAQ, Featured, Microcontroller Tips Tagged With: FAQ, keysight

A simplified way of devising 5G phased arrays

August 21, 2018 By Lee Teschler

We recently got a tour of Qorvo‘s new RF front-end module from Qorvo’as Bror Peterson and Keysight’s Osamu Kusanois. The module is said to be the world’s first 39-GHz front-end that integrates a power amp, low-noise amp, and switch in one small package. The module uses gallium nitride technology to get a high power density. […]

Filed Under: Microcontroller Tips Tagged With: keysight, qorvo

Using the scope integration function to determine energy use

November 9, 2017 By David Herres

power consumption

Integrals come in handy in measuring power consumption when that consumption is intermittent or corresponds to a dissipation vs. time function that is irregularly shaped. The classic example is that of a controller that wakes up every second or so. You can, of course, use single-shot capture to get the current waveform when the controller […]

Filed Under: Featured, Test and Measurement Tips Tagged With: keysight

Automotive Ethernet test software covers BroadR-Reach, 100Base-T1 and 1000Base-T1 formats

October 27, 2017 By Paige Beach

Keysight Technologies, Inc. today unveiled a total of five new automotive Ethernet solutions at the Automotive Testing Expo 2017, Suburban Collection Showplace, Booth 2008, Novi, Michigan, Oct. 24-26. These solutions help automotive design and test engineers bring their products to market faster with easy-to-use conformance testing. Among the innovations unveiled publicly for the first time is […]

Filed Under: Test and Measurement Tips Tagged With: keysight

Gallery: Technical highlights of the Electric & Hybrid Vehicle Technology Expo

September 18, 2017 By Lee Teschler

Electric & Hybrid Vehicle Technology Expo & Conference kicked off this week in Novi, Mich. near Detroit. Billed as a forum for electric, hybrid and plugin hybrid vehicle technology, it showcased technological developments along the supply chain including electrical powertrains and components, battery management systems, materials and equipment. Here are a few of the more […]

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Filed Under: Applications, Automotive, Featured, Power Electronic Tips Tagged With: keysight, Maxwelltechnologies, rohm, tektronix

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