Simple efficient microwave hybrid power dividers
This presentation is the property of its rightful owner.
Sponsored Links
1 / 11

Simple, Efficient Microwave Hybrid Power Dividers PowerPoint PPT Presentation


  • 99 Views
  • Uploaded on
  • Presentation posted in: General

Simple, Efficient Microwave Hybrid Power Dividers. By Robert J. Templin W5OE Roadrunners Microwave Group. Reasons for Hybrids. EME and other applications require higher microwave power High power MW amps are TWTs or other high voltage devices

Download Presentation

Simple, Efficient Microwave Hybrid Power Dividers

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -

Presentation Transcript


Simple efficient microwave hybrid power dividers

Simple, Efficient MicrowaveHybrid Power Dividers

By Robert J. Templin

W5OE

Roadrunners Microwave Group


Reasons for hybrids

Reasons for Hybrids

  • EME and other applications require higher microwave power

  • High power MW amps are TWTs or other high voltage devices

    not happy to sit out at the antenna feed point


Reasons for hybrids1

Reasons for Hybrids

  • With high-power MW amps in the shack, line losses are significant

  • A 200 W amp in the shack with a 3 db line loss is only 100 W at the feed


Reasons for hybrids2

Reasons for Hybrids

  • High power MW solid state amps operate at 28 volts and can be placed at the feed point

  • Line losses are eliminated

  • High power MW amps can be combined with hybrids to outpower TWT’s


Simple efficient microwave hybrid power dividers

Eu design

Hybrid

Combiner


Simple efficient microwave hybrid power dividers

N6CA 23cm ring-hybrid using tubing for the ring

-

Tubular ring element is a problem for other bands


Simple efficient microwave hybrid power dividers

N6CA design ring-hybrid using flat stock for ring

-

Easy to adapt to any band


Critical dimensions

Radius A

Radius B

Radius C

Spacing

1.5l Divided by 2p (0.2387 free space l)

Radius A minus .125”

Radius A plus .125”

0.100” for all bands

Critical Dimensions


Critical dimensions1

Critical Dimensions

  • Connector electrical spacing 90, 90, 90, 270 degrees

  • Linear Spacing A, A, A ,2A


Precautions

Precautions

  • Microwaves at high power levels deserve biological care!

  • You wouldn’t stick your head in a microwave oven, don’t get near high power feeds!


  • Login