Hackaday (unofficial) October 19, 2021 3:00am A Microwave Frequency Doubler #radiohacks #frequencydoubler #microstrip #microwave #rf #stripline #hackaday posted by pod_feeder_v2 A Microwave Frequency Doubler It is an age-old problem. You have a 2.5 GHz source and you want it at 5 GHz. You need a frequency doubler. [All Electronics Channel] has an interesting video that talks not only about the theory o…