High Power wideband power combiner [hlp]

[No one]

Hello Everyone;
I want to know: Is there any high power wideband combiner in the VHF/UHF band? How we can implement it?

 

[james cook]

helical combiner,I think

 

[No one]

Hello james cook;
You wrote:

helical combiner,I think

Can you explain more?

 

[NiGo_bmstu]

Hello Everyone;
I want to know: Is there any high power wideband combiner in the VHF/UHF band? How we can implement it?

i think it suitable - radial combiner:

 

[No one]

Hello NiGo_bmstu;
Please explain about the figure. Which book is this figure from? What is the frequency band of it? Which MMIC's have been used in it?

 

[joensd]

You can use coaxial cable combiners.
These ideas exist for more than 20 years although I don´t want to say I´m capable of explaining them all.
Here´s one example that also works for the UHF range if adopted properly:
https://www.freepatentsonline.com/4774481.html
You´ll find many more designs in this very good and complete book about rf amplifiers: https://www.amazon.com/Microwave-Am...bs_sr_1?ie=UTF8&s=books&qid=1196109728&sr=8-1

If anybody has ever done power combining with coaxial cables, followed by matching transformer to 50 Ohms I´d be very interested.

Greets
Jens

 

[memarian]

hi,

check www.responsemicrowave.com

i used their products in FM Band and VHF TV Bands @ high RF power

good luck!

 

[NiGo_bmstu]

Hello NiGo_bmstu;
Please explain about the figure. Which book is this figure from? What is the frequency band of it? Which MMIC's have been used in it?

it's from article:
A Ka-Band Wideband-Gap Solid-State Power
Amplifier: Architecture
Identification
P. Khan, L. Epp, and A. Silva