High Power wideband power combiner [hlp]

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

helical combiner,I think

Hello james cook;
You wrote:
Can you explain more?

i think it suitable - radial combiner:

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?

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:
http://www.freepatentsonline.com/4774481.html
You′ll find many more designs in this very good and complete book about rf amplifiers: http://www.amazon.com/Microwave-Ampl...6109728&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

hi,

check www.responsemicrowave.com

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

good luck!

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