VNA Bridge and Support Circuits

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This page last updated 05/14/2019

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. Note this link is dead !
        Please use the new Mirror link https://forum.ptdreamer.com/sam/  [5/14/2019]

        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