This paper examines the effect of the geometrical shapes of a defected ground-plane structure (DGS) slot on performance of the Hi-Lo microstrip low-pass filter (LPF). A three-pole LPF based on an ...

In this paper, the electromagnetic parameters of the grounding transformer are obtained based on finite element analysis, and then the parameters are substituted into the constructed time-domain ...

The Keychron Q Max series doesn’t come cheap, but it has just about everything we want out of a high-end mechanical keyboard. Its full aluminum case is exceedingly sturdy, hefty and cool to the ...

Procol Harum's former organ player has appeared in court to play the keyboard in a bid to prove he wrote part of one of the band's greatest hits. Matthew Fisher claims he wrote the distinctive organ ...

Concorde flights are to end after more than three decades of luxury travel. British Airways and Air France made simultaneous announcements that they would be permanently grounding the famous ...

TLD is introducing its Alternative Power Source solution to customers and announcing its objective to stop mechanical drivelines by the end of 2024.

More than just high-end and lifestyle: the rich middle ground of today’s hi-fi Andrew Everard Friday, June 13, 2025 It’s been a busy few months for hi-fi, as well as the announcement of the Harman ...

The Royal Kludge R65 brings a lot of refinement to the compact keyboard segment, and in 2025 it stands out as one of the best budget 65% wired or wireless boards with enthusiast-friendly features ...

The JamesDonkey J2 remains one of the most complete budget 75% keyboards you can buy in 2025. Priced around $34–$59, it delivers a well-rounded feature set that rivals far more expensive boards.