VNA Bridge and Support Circuits

Return to [HOME]
Return to [Hermes]
This page last updated 08/20/2014

Links to some excellent little known programs that I used in making the files below.

A great FREE solution to Micro$oft Office is WPS Office [Formaly called KingSoft] which is a cross platform program for Windows, iOS [iPad , iPod & iPhone], Android and Linux.  Reads & writes Office 97 to 2010 formats, and outputs in all  plus PDF. http://www.wps.com/

Graphisme et utilitaires - PhotoFiltre ver 6.53 [Photoshop Clone]
[in Downloads - which is located in top left Left column] http://photofiltre.free.fr/frames_en.htm
Extract to anywhere and run. Nice program and features. Simple editing & easy to use

Schindler & Shill Gmbh -  GerberLogix V29 Gerber viewer - great program
http://www.easylogix.de/products_detail.php?prog_id=1

Schematics [sch] are in Express PCB format

Gerbers are optimized for OSH Park Fab [3 protos pp $5 / sq-in]

Note:  Most of the original information here was done by Sam Wetterlin - see link below for much more information.

Revised  & New Information

Calibration Source for VNA, PHSNA, Scopes or Spectrum Analyzers
K9IVB_Version_Calibration_Source.pdf
Cal Source rev2_06202014.zip  [Gerbers]

K9IVB Bauln Bridges5_Layout.gif for BalunBridges6.zip [Express PCB file - right click to save the link !]
Note: Includes a breakout board for Hermes and several in line pads.
The only changes in v6 from v5 are the corrections to the Dual TC1-1-13 layout

Revised 3 Bauln Bridge layout from above that accounts for Solder Mask and top Silkscreen.
3BaulnBridge_v2_6102014.pdf
Schematic:  3-Bead Bauln Bridge_V2.sch
BOM spreadsheet:  3BaulnBridge_v2_BOM_06102014.xls
Gerbers:  TC1_Bridge_06092014.zip
[Board is ~1.34 sq-in so 3 for less than $7.00 at OSH Park]

Series Fixture for VE3NEA Ham VNA1.1
SeriesFixture_06102014.pdf
Gerbers:  SeriesFix_06092014.zip

K3IT Revised Gerbers for correction to Dual TC1-1-13
Dual-TC1_Rev_ 06092014.zip

Older Revised info moved from Hermes page

        VNA Bridge Parts Lists.xls Updated March 29, 2013

        Sam Wetterlin Electronics  Links to Schematics and  pcb files

        K9IVB Bauln Bridges5_Layout.gif for BalunBridges5.zip [Express PCB file - right click to save the link !]
            Note: Includes a breakout board for Hermes and several in line pads.

        Bridge_DualTC1-1-13_Alt_Ckt.gif Schematic showing revised circuit design.
        New 03/06/2014
            K3IT Revised Gerber files VNABridgeRev3.zip
            K3IT Link to OSH Park Project http://oshpark.com/shared_projects/kHH5LohL
         Mouser Parts List Link:  https://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=048cbe5d6b