The deisgn, redisign, build, test, and report phases are complete.

Quadrupler during fabrication and testing

The quadrupler project is complete. The final report was given at the Microwave Update 2023 meeting in Enfield CT in April
Press here for that report which includes information about the design, goals, and achievements of performance.

To summarize, the performance of this device is as follows

These charts show output frequency across X axis in GHz and output power across Y axis in dBm. The cursor is at 47 GHz.
Left is a chart of a typical unit at different input power levels. This unit reached compression at 4 dBm. Chart on right is an overlay of 8 typical units at +5 dBm input.

• Frequency and Signal Levels
• Input 10 GHz to 12.5 GHz
• Output 40 GHz to 50 GHz
• Input Level 3 to 5 dBm nominal, do not exceed 8 dBm input
• Output Level 5 dBm to 12.5 dBm with peak at 47 GHz band
• Power
• 6 to 13 VDC Nominal at 160 mA
• 6 to 8 VDC range if used as a continuous beacon
• Environment
• 25 C or lower Nominal
• 40 C maximum, but only if run at 6 to 8 VDC
• If run as continuous beacon and ambient may reach 40 C, then both
• run at 6 to 8 VCD and
• key source signal rather than keying the quadrupler directly
• Guaranty
• If "Use Instructions" are followed
• Guaranteed for 1 year from purchase date to function correctly (meet specifications)
• I decide whether to repair or replace
• If failure after more than 1 year, or didn't follow "Use Instructions" contact me

Ordering

. Paypal accepted in USD to tomw (at) wa1mba (dot) org

. Units sold at cost

. $400 each

. US Shipping $27

. International shipping $56

When you are ready to order also send an email message to me including your call sign (if not an amateur, your reason for ordering please), and your mailing/shipping address.

There are Sector Horns available which are just what you need for beacon use. These excellent horns have a 90 to 120 degree azimuth and 15 degree elevation beamwidths, thereby covering a wide range of ground while concentrating the energy on the horizond. The Quadrupler uses a circular flange, and the horn has a square flange pattern, so you will need a coupler between the two. The horns are designed by W1GHZ. Here is a message from him.

FROM PAUL W1GHZ

at Microwave Update, I presented "Sectoral Horns for Microwave Beacons" and Tom, WA1MBA, presented his 47 GHz Quadrupler. Together, they can make a 47 GHz beacon. the horns, which work at both 47 and 24 GHz, are now available. details may be found at w1ghz.org, along with some other updates just added 73 paul 73 paul

Tom WA1MBA

This page was last updated October 27, 2023