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Innovative Power Products Couplers

RF Cafe Custom Products

RF Cafe has ended the dearth of T-shirts, sweatshirts, coffee mugs, and other items that sport engineering themes. Our newest design sports the thesis, "RF Engineers...We Are the World's Match Makers," with colorful, instructional Smith Chart™ designs and VSWR-Return Loss-Reflection Coefficient conversion formulas.

Extremely Low Prices

I really want these items to be "out there," so the new prices are set at cost + 50¢.    Click Here

This design is sure to be popular with RF Cafe visitors, and will be added to the potential prizes for our monthly drawing of a name of someone who purchases RF Cafe software. Items that qualify for the RF Cafe T-shirt Contest are colored in GREEN.

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RF Cafe Ringer T-shirt - front (blue or black trim),  We Are the World's Matchmakers Smith Chart designRF Cafe Ringer T-shirt - back (blue or black trim),  We Are the World's Matchmakers Smith Chart design
T-Shirt w/Color Trim
RF Cafe Lady's T-shirt - front (available in 3 colors),  We Are the World's Matchmakers Smith Chart designRF Cafe Lady's T-shirt - back (available in 3 colors),  We Are the World's Matchmakers Smith Chart design
Lady's T-Shirt
RF Cafe Coffee Mug - 15 oz. We Are the World's Matchmakers Smith Chart designRF Cafe Coffee Mug - 15 oz. We Are the World's Matchmakers Smith Chart design
15 oz Large Coffee Mug
RF Cafe Coffee Mug - 8 oz. We Are the World's Matchmakers Smith Chart designRF Cafe Coffee Mug - 8 oz., We Are the World's Matchmakers Smith Chart design
8 oz Coffee Cup
RF Cafe Gray Hooded Sweatshirt - front,  We Are the World's Matchmakers Smith Chart designRF Cafe Gray Hooded Sweatshirt - back,  We Are the World's Matchmakers Smith Chart design
Gray Hooded Sweatshirt
RF Cafe Gray Sweatshirt - front,  We Are the World's Matchmakers Smith Chart designRF Cafe Gray Sweatshirt  - back,  We Are the World's Matchmakers Smith Chart design
Gray Sweatshirt
RF Cafe Ceramic Stein - 22 oz.,  We Are the World's Matchmakers Smith Chart designRF Cafe Ceramic Stein - 22 oz., We Are the World's Matchmakers Smith Chart design
22 oz Ceramic Stein
RF Cafe Black T-Shirt,  We Are the World's Matchmakers Smith Chart design
Black T-Shirt (front only)
RF Cafe Baseball Cap,  We Are the World's Matchmakers Smith Chart design
Baseball Cap
RF Cafe Lady's Tank Top - front (white only),  We Are the World's Matchmakers Smith Chart designRF Cafe Lady's Tank Top - back (white only),  We Are the World's Matchmakers Smith Chart design
Lady's Tank Top
RF Cafe Ceramic Tile,  We Are the World's Matchmakers Smith Chart design
4.25"x4.25" Tile Coaster
RF Cafe Mouse Pad, Engineer's Troubleshooting Flowchart design
Mouse Pad

RF Cafe Custom Designs

These custom designs appear on our products. If there is a particular item offered by CaféPress™ that you would like us to add one of these designs to, please send an e-mail and let us know.

RF Engineers - We are the World's Match  Makers™

RF Engineers - We are the World's Match Makers™

This custom design by RF Cafe is a montage of Smith Charts with forbidden regions and their associated L-C networks, along with conversions between return loss, reflection coefficient, and VSWR.

Engineer's Troubleshooting Flow Chart

Engineer's Troubleshooting Flow Chart

Experts say that good humor has to have a bit of truth in it.

ERZIA (RF amplifiers, wireless, communications) - RF Cafe
Rigol Technology (test equipment) - RF Cafe Axiom Test Equipment - RF Cafe
About RF Cafe
Kirt Blattenberger - RF Cafe Webmaster
Copyright: 1996 - 2018
Webmaster:
    Kirt Blattenberger,
    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The Internet was still largely an unknown entity at the time and not much was available in the form of WYSIWYG ...

All trademarks, copyrights, patents, and other rights of ownership to images and text used on the RF Cafe website are hereby acknowledged.

My Hobby Website:  AirplanesAndRockets.com

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