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Res-Net Microwave - RF Cafe

About RF Cafe

Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
    Kirt Blattenberger,


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 World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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:

Electronics World articles Popular Electronics articles QST articles Radio & TV News articles Radio-Craft articles Radio-Electronics articles Short Wave Craft articles Wireless World articles Google Search of RF Cafe website Sitemap Electronics Equations Mathematics Equations Equations physics Manufacturers & distributors Engineer Jobs LinkedIn Crosswords Engineering Humor Kirt's Cogitations RF Engineering Quizzes Notable Quotes App Notes Calculators Education Engineering magazine articles Engineering software Engineering smorgasbord RF Cafe Archives RF Cascade Workbook 2018 RF Symbols for Visio - Word Advertising RF Cafe Homepage Thank you for visiting RF Cafe!
Exodus Advanced Communications Best in Class RF Amplifier SSPAs

Please Sponsor RF Cafe

RF Cafe on a Samsung S4 Smartphone

RF Cafe on a Samsung S4 smartphone. At the time of this writing, RF Cafe scores an "Awesome! This page is mobile-friendly" on Google's Mobile-Friendly Test.

RF Cafe typically receives 10,000-15,000 website visitors each weekday and about half that on weekends (see chart). RF Cafe is a favorite of engineers, technicians, hobbyists, and students all over the world. With nearly 16,000 unique pages in the Google search index, RF Cafe returns in favorable positions on many types of key searches, both for text and images. New content is added on a daily basis.

5/2/2021 Update: Updated website visitor statistics graphs.

Please refer to the screen capture below for Banner Ad, and Highlighted Ad graphical formats and locations. Banners appear on every page of RF Cafe as shown. Hyperlinks point directly to your website. Please contact me if you are interested. Web page layouts do change occasionally, but order of ad precedence is always retained.

<click image for larger version>

Sponsorship Opportunities - RF Cafe

NOTE: I reserve the option to refuse ads which I do not feel are appropriate for the RF Cafe mission.

Website Traffic Trend January - April 2021 Web Statistics January - April 2021

Banner Advertising slots 1 through 5 randomly displays banners for up to four (4) separate companies*. Slot 6 is shared by typically four or more separate companies (a low cost way to have a banner ad). You provide the Banner and Highlighted Ad graphics as defined below.

Slot Description Price/mo.
#1 728x90 px $400
#2 160x600 px $375
#3 160x600 px $325
#4 160x600 px $300
#5 160x600 px  $275
#6 728x90 px $175
  • Contract Length = 3 months
  • All Banner Slot Advertisers may have up to 3 (3) separate graphic designs for your company, each with a unique URL to your website - all included at the rate shown. They will all share your impression ratio*. Also, you may provide a separate Highlighted Ad graphics for each Vendor Page on which you ad appears.
  • Banner Ad Specifications:
    728x90 - Width = 728 px, Height = 90 px
    160x600 - Width = 160 px, Height = 600 px
    File Format = JPG or GIF (static, no animation)
    File Size = 45 kBytes (maximum)
    Hyperlink = Your company website
    Content = Text & graphics
  • Highlighted Ad Specifications (see screen shot):
    Width = 330 pixels, Height = 400 pixels
    File Format = JPG or GIF (static, no animation)
    File Size = 45 kBytes (maximum)
    Hyperlink = Your company website
    Content = Text & graphics
    Vendor Page Placement = Up to 5 pages
          related to your products and/or services.
          I will suggest, but you have final say.
          Additional pages are $5/page/month
  • I will design the 79x24-pixel logo for the upper right page border. It displays permanently with every pageview, even if your Banner Ad is not currently displaying.
  • See other Notes below.

Important Notes:

  • Discounts are not offered at this time.
  • Pixel dimensions and maximum file sizes listed are firm. If you have trouble meeting the file size, I will be glad to help - there has never been an ad I couldn't fit.
  • I do not collect page traffic or link click statistics for advertisements. Your website server statistical analysis is a much better reporter of inbound links from RF Cafe than I or anyone else can provide.
  • To the best of my knowledge the page layouts shown are representative of all pages on RF Cafe.
  • I make page layout changes from time to enhance performance, but regardless of the layout, your ad(s) will retain relative location order.
  • The rel="sponsored" tag is inserted into all coded hyperlinks.
  • * Your banner(s) will be displayed at approximately a 1:4 rate in Slots #1, #2, #3, #4 & #5. I usually run third-party advertisements or my own RF Cafe software ads along with private advertisers in the banner slots, at a display rate of about 1:16.
RF Superstore (RF Components) - RF Cafe
EMC Directory
LOTUS Communications Systems Modular RF Component Building Blocks - RF Cafe

Please Support RF Cafe by purchasing my  ridiculously low−priced products, all of which I created.

These Are Available for Free