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FEIC Beam Scanning Group

Current links

Past Meetings

Hardware setup

Reports and papers

Analysis Techniques

ORR Action Items

Data

Room temperature 3mm receiver with holography feed horn

Band 3

Band 4

  • March 2010

Band 6

Band 7

Band 9

Map sizes and sampling

  • Minimum sampling to allow +-15deg farfield span without aliasing
    • Band 9: 121x121 points is lambda/0.55 at band center
    • Band 10: 165x165 points "
  • Map sizes recommended
    • Band 3: 100mm x 100mm with 81x81points is lambda/2.43 at band center. Warning: Larger map allows direct path around the warm optics.
    • Band 4: 100mm x 100mm with 81x81 points is lambda/1.45 at upper end of band
    • Band 6: 125mm x 125mm with 101x101 points is lambda/0.99 at band center. (Larger size needed to characterize the known sidelobe.)
    • Band 7: 100mm x 100mm with 101x101 points is lambda/0.81 at upper end
    • Band 8: 100mm x 100mm with 101x101 points is lambda/0.62 at upper end (492 GHz)
    • Band 9: 100mm x 100mm with 121x121 points
    • Band 10: 100mm x 100mm with 165x165 points

ASIAA results

Future data needed

  • Suggested scan parameters
    • 127x127 with a window size of 100.8126mm ( = 63*12.7*(127-1) microns)
  • After LORTM installation
    • Band 9: Andrey's horn
    • Band 3,6,7: OEW

Coax cable specs

30 MHz filter specs

Topic attachments
I Attachment Action Size Date Who Comment
20080402_Block+Diagram+of+NA+FEIC+system+without+LORTM.pdfpdf 20080402_Block+Diagram+of+NA+FEIC+system+without+LORTM.pdf manage 71.1 K 2008-08-20 - 21:04 ToddHunter Block diagram of beam scanning system (without LORTM)
20090525_FE_Cartridge_Studies_Preliminary_revA.pdfpdf 20090525_FE_Cartridge_Studies_Preliminary_revA.pdf manage 3710.6 K 2010-02-12 - 00:47 ToddHunter Art Symmes model of FE deformation with elevation
ALMA-40.00.00.00-122-A-CRE_Pointing_errors.pdfpdf ALMA-40.00.00.00-122-A-CRE_Pointing_errors.pdf manage 33.0 K 2009-09-05 - 09:51 ToddHunter Richard's CRE on pointing consistency between bands
B6_10_08_Scan11+12_WithProbe.xlsxls B6_10_08_Scan11+12_WithProbe.xls manage 11252.0 K 2008-11-03 - 16:31 ToddHunter Richard's spreadsheet with beam squint and defocus calculation
Band_3_CART-009_Beam_Pattern_Data.zipzip Band_3_CART-009_Beam_Pattern_Data.zip manage 7627.2 K 2008-12-07 - 23:21 ToddHunter Band 3 cartridge 9 pattern data (from HIA)
Calculation_of_Efficiencies.pdfpdf Calculation_of_Efficiencies.pdf manage 71.8 K 2008-08-20 - 20:57 ToddHunter Richard's description of efficiency calculations
Comp_params.pdfpdf Comp_params.pdf manage 12.0 K 2008-09-02 - 16:07 ToddHunter Comp_params.pdf: efficiencies from Andrey vs. NSI's farfield
Comp_plots.pdfpdf Comp_plots.pdf manage 60.5 K 2008-09-02 - 16:06 ToddHunter Comp_plots.pdf: amplitude plot of Andrey vs. NSI's farfield
Comparison_103.pdfpdf Comparison_103.pdf manage 10.9 K 2008-08-26 - 13:33 ToddHunter Richard Hills' comparison of efficiency values with and without NSI corrections
FEIC-b9-beam-report-3.pdfpdf FEIC-b9-beam-report-3.pdf manage 1672.4 K 2008-08-26 - 13:25 ToddHunter Band 9 report from Andrey Baryshev
FEND-40.02.00.00-035-B-REP-Appendix3-20070926-1.pdfpdf FEND-40.02.00.00-035-B-REP-Appendix3-20070926-1.pdf manage 4041.1 K 2008-12-08 - 14:42 ToddHunter Appendix 3: Band 3 Optics Measurement
FEND-40.02.06.01-036-A-REP.pdfpdf FEND-40.02.06.01-036-A-REP.pdf manage 193.4 K 2008-12-16 - 09:29 ToddHunter Lazareff's paper on Band 6 sidelobe
FEND-40.03.00.00-007-A-REP_cryostat-design-report.pdfpdf FEND-40.03.00.00-007-A-REP_cryostat-design-report.pdf manage 3353.9 K 2009-08-07 - 12:20 ToddHunter cryostat design report (see Section 9 on Band 3 deflection)
FESN013_B3PatternsNoWarmOptics.pdfpdf FESN013_B3PatternsNoWarmOptics.pdf manage 550.1 K 2010-12-21 - 15:17 ToddHunter  
FETMSdescription7.pdfpdf FETMSdescription7.pdf manage 609.1 K 2008-08-20 - 21:05 ToddHunter Description of beam scanning system
HolographyHornMeasurements.pdfpdf HolographyHornMeasurements.pdf manage 399.6 K 2008-10-09 - 15:15 ToddHunter beam patterns of spare holography horn at 104 GHz
K+L.pdfpdf K+L.pdf manage 163.7 K 2008-10-22 - 11:37 ToddHunter K+L 30MHz filter data
Large_cartridge_deflection_test.pdfpdf Large_cartridge_deflection_test.pdf manage 214.9 K 2009-08-07 - 12:19 ToddHunter Band 9 cartridge deflection test
Makefile.linuxlinux Makefile.linux manage 2.8 K 2010-12-06 - 14:57 ToddHunter  
NSI_beam_Measurement_at_EA_FEIC.rarrar NSI_beam_Measurement_at_EA_FEIC.rar manage 809.4 K 2009-11-05 - 22:03 ToddHunter raw NSI data from EA FEIC for bandNSI s 3,6,7
New_fit.xlsxls New_fit.xls manage 7289.0 K 2008-08-20 - 18:26 ToddHunter Richard's latest spreadsheet (with fits for phase and amplitude)
Pages_from_2009_Test_and_measurement_report-presentation.pdf_-_Adobe_Acrobat_Professional.pdfpdf Pages_from_2009_Test_and_measurement_report-presentation.pdf_-_Adobe_Acrobat_Professional.pdf manage 90.2 K 2009-11-05 - 21:58 ToddHunter Band 3 measurements at ASIAA
RHills_Sep_08_103.docdoc RHills_Sep_08_103.doc manage 175.0 K 2008-09-08 - 17:56 ToddHunter same as above, but in Word format (with better resolution)
RHills_Sep_08_103.pdfpdf RHills_Sep_08_103.pdf manage 185.5 K 2008-09-08 - 17:16 ToddHunter Richard's comparison of before/after averaging Beams 1 and 2, and differencing them
Reactel.pdfpdf Reactel.pdf manage 73.9 K 2008-10-22 - 11:36 ToddHunter Reactel 30MHz filter data
SchemeForAlternativeMount.docdoc SchemeForAlternativeMount.doc manage 93.5 K 2008-10-14 - 11:26 ToddHunter Richard & Todd's scheme for an alternative warm optics mount
Set2_questions.pdfpdf Set2_questions.pdf manage 304.2 K 2008-08-26 - 13:39 ToddHunter set2_questions from Richard Hills
Small_cartridge_deflection_test.pdfpdf Small_cartridge_deflection_test.pdf manage 200.0 K 2009-08-07 - 12:19 ToddHunter Band 3 cartridge deflection test
asa_wavefront.pngpng asa_wavefront.png manage 31.6 K 2010-03-29 - 15:23 ToddHunter wavefront error due to subreflector-primary despace
fit-all-2008-scan106_105_B9_defoc.xlsxls fit-all-2008-scan106_105_B9_defoc.xls manage 6564.5 K 2008-08-20 - 18:25 ToddHunter Richard's spreadsheet with defocus term
fred103.pdfpdf fred103.pdf manage 916.2 K 2008-08-28 - 17:40 ToddHunter Fred's plots of beam1, beam2, and proper average (Scan 103)
grooves2.pdfpdf grooves2.pdf manage 40.6 K 2008-10-28 - 18:16 ToddHunter James Lamb article on cross-pol from grooves
probepat.pdfpdf probepat.pdf manage 2263.9 K 2008-10-27 - 16:18 ToddHunter 3mm open-ended waveguide probe correction applied by NSI software (as derived by Fred)
roomtemp3mm.jpgjpg roomtemp3mm.jpg manage 177.7 K 2009-01-10 - 15:22 ToddHunter photo of NSI scanner setup for 3mm room temperature receiver test
scan103.fred.rtfrtf scan103.fred.rtf manage 2941.8 K 2008-09-19 - 15:05 ToddHunter Fred Schwab's Mathematica analysis of scan 103 starting from NSI near field data
scannerReport.pdfpdf scannerReport.pdf manage 2682.2 K 2009-08-13 - 22:14 ToddHunter Investigation of the Repeatability of the NA FEIC Nearfield Scanner (Aug 13)
set2images.pdfpdf set2images.pdf manage 465.3 K 2008-08-26 - 13:41 ToddHunter set2images (PDF)
yaghjian.pdfpdf yaghjian.pdf manage 634.0 K 2008-10-27 - 17:48 ToddHunter Yaghjian 1984 paper on OEW
Topic revision: r85 - 2013-08-15, ToddHunter
 

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