As is always the case, we've been busy adding plenty of new features to Microwaves101. We ain't been slack, Cap'n Walker!

Happy 100th Birthday to the immortal Jackie Robinson! (Born 31 January, 1919).  Other close anniversaries: it's been sixty years since the Day the Music Died (3 February 1959) and forty years since 16-year-old Brenda Anne Spencer shot up a schoolyard with an automatic weapon to "liven up her day" (29 January 1979).  Now that every day seems like Monday, it would be hard to market a protest song about a school shootings, but Ireland's  Boom-Town Rats did that in 1979, holding the number one spot in UK with I Don't Like Mondays.  How's your Monday going so far? It will get better if you listen to I Don't like Mondays played live, followed by Bob Geldof's awsome interview on the Merv Griffith Show.  Clearly, here's a man who couldn't care less what the media thinks of him.  We could use more people like that.  Like Chopin, Boom-Town Rats' Johnnie Fingers is not afraid of the black keys on a keyboard.

Now let's see what's new on the Microwaves101 site for February 2019...

  •  We have a new page on capacitance versus voltage  of multi-layer ceramic caps, by Hadrien. Did you know that X7R is a ferro-electric material? Merci beaucoup, mon ami!

  • We're sharing a presentation from Aerospace Corp, a federally funded research and development center (FFRDC)  that talks about lead versus lead-free solder, thanks to a post on a local Meetup board.  You just never know when you're going to run across information useful to microwave engineering! 

  • We offer a a new page on wideband 180-degree hybrid couplers, thanks to Carl Pfeiffer. Carl's coupler is an asymmetric coupled line structure, in the example, 2-13 GHz is achieved but the technique can be used over 10:1 bandwidth.

  • Carl also submitted an answer to a question we posted a while back about hybrid coupler isolation: why do the isolation and return losses seem to be neary identical? Thanks, Carl!

  • Here's a page on two ways to define noise figure (and the most math you've ever seen on this site!) thanks to John McCorkle.

  • The Unknown Editor is happy to celebrate Black History Month, and even provides some personal history from way back in the 1970s. He's included a controversial year-book photo, even though he has no intention of running for governor!

  • Other fixes and updates:

    • We made a minor fix to our downloadable charge storage capacitor dissipation spreadsheet, thanks to eagle-eyed Fritz. The math in the original spreadsheet was not changed, in case you were worried...
    • Mel sent us an update on SRB Singer, for the Where Are They Now? page.  Thanks, Mel!
    • FYI for those of you who DON'T get our video newsletter, this month we're highlighting the video series from CalTech called "The Mechanical Universe".  We wish we had time to watch them all!
    • We've finally implemented a workaround for the newsletter sign up problems we were having.  Want to sign up for this or our video newsletter?  Go to the MW101Stuff Newsletter page
  • Meanwhile, on our discussion board, it looks like three colleagues answered a question sourcing a microwave oven with temperature sensors.  Seems like a nice niche market for a microwave engineeri with some spare time.  Someone is looking for advice on benchtop thermal testing set-ups, here's your chance to influence a manufacturer.  Phil is looking for resources to come up to speed on HFSS (that makes two of us...). Help a brother out!  Pop on over to the discussion board to register and sign in, then chime in on existing threads, or start your own topics. Our new user approval process is quick and anonymous, blocks most bots and and eliminates spam by more than 99%. At least that's what the sales rep told us...

Attention forward thinking microwave marketeers: check out information on advertising with us. Sponsorship information is but a click away...

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