APPUARPITA
Newbie level 6
Hi,
I am designing an active doubler,using reflector networks at both sides, reflector network consist of a series line as well as an idler circuit ( quarter wave open stub), idea is to reflect the undesired harmonics back to device in phase,.
since the quarter wave stub is resonant at one particular frequency,i want to know what is usually the percentage bandwidth of the stub and how to calculate it.
My input frequency is 5.5GHz-6.0GHz, i am using HEMT device for multiplication.
How much bandwidth the stub can sustain ?How to increase the bandwidth?
Avijit
I am designing an active doubler,using reflector networks at both sides, reflector network consist of a series line as well as an idler circuit ( quarter wave open stub), idea is to reflect the undesired harmonics back to device in phase,.
since the quarter wave stub is resonant at one particular frequency,i want to know what is usually the percentage bandwidth of the stub and how to calculate it.
My input frequency is 5.5GHz-6.0GHz, i am using HEMT device for multiplication.
How much bandwidth the stub can sustain ?How to increase the bandwidth?
Avijit