S-parameter Modeling of Passive Components

I still get questions from people about S-parameters from time to time. I hope this old “cheat sheet” I made originally to help myself helps somebody else…

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Hybrid Antenna Article in Microwave Journal

The January issue of Microwave Journal contains an article about the hybrid antenna– click here (registration may be required).

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Hybrid Antennas for the Internet of Things

This design is slowly but steadily growing in popularity. It was first introduced here a couple years ago, then it was presented in greater detail in October of last year in  Antenna Systems and Technology’s website (A Hybrid “Hexa-Band” Cellular Antenna). We talked about it in November at Antenna Systems 2015. […]

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CompexCAD for Single Layer Capacitors

CompexCAD is now live.

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Resonant Lines for Device Measurement, 10 MHz – 3.5 GHz

[The following information was originally presented at Capacitor and Resistor Technol. Symp., New Orleans, 1999]   Background Used since WWII (Westphal & VonHippel, MIT) ASTM standard F752-82 (expired) Boonton 34A Still useful, applicable to higher and lower frequencies…   Equivalent Circuits   Q-factor Interpolation 60 cm line (BEC 34A s/n 176) […]

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pro re nata

p.r.n. “As the circumstances require” (p.r.n.) is a prescriptive phrase used by physicians to indicate that Rx (a remedy, cure or solution for a disorder or problem) may be administered according to the judgement of the caregiver or patient. Note here that the physician is not conveying, “do whatever you want, whenever […]

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One Year Old

Somewhere around a month (or two) ago Machine2Wireless quietly passed through its first year of existence. It was quiet because we were busy. It is sometimes useful to look back in time to take stock of what has transpired, especially if one hopes to learn and grow from past experience. […]

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The First All New Resonant Line in Thirty Years

NOTE: Submitted to CARTS 2014 Introduction The resonant line technique began at MIT Electrical Insulation Laboratories during WWII. The method satisfies a basic need to measure low losses in large reactive loads. The technique is to cancel the reactance of the load with a known (calculable) reactance, leaving the losses […]

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Bad news… Good news…

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Getting Big Ideas about ‘Small’ in NW AR

One of my customers is also a good friend. I emailed him from Fayetteville as soon as I got internet… Dear Walt- This is the first email sent from my new digs! The address is: Machine2Wireless, LLC 700 W. Research Center Blvd., Room 1260 Fayetteville, AR72701 Mark He replied… Welcome […]

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