https://hexandflex.com/2021/07/25/the-freespace-pathloss-myth/2024-07-21T21:58:15+00:00monthlyhttps://hexandflex.com/spi300/https://hexandflex.com/wp-content/uploads/2020/08/design2.pngDesign22020-08-19T18:07:30+00:00weekly0.6https://hexandflex.com/2019/08/31/getting-started-with-the-nanovna-part-1/https://hexandflex.com/wp-content/uploads/2019/08/20190826_145638-e1566837439853.jpg20190826_145638Loadhttps://hexandflex.com/wp-content/uploads/2019/08/20190826_145658-e1566837350161.jpg20190826_145658Openhttps://hexandflex.com/wp-content/uploads/2019/08/20190826_145615-e1566837277806.jpg20190826_145615Shorthttps://hexandflex.com/wp-content/uploads/2019/08/20190826_145124-e1566836556794.jpg20190826_145124Open, Short and Load Standards next to their associated calibration menu.https://hexandflex.com/wp-content/uploads/2019/08/20190826_145816-e1566831089465.jpg20190826_145816Congratulations, You have unlocked the secret keypad!https://hexandflex.com/wp-content/uploads/2019/08/20190826_145800-e1566830917706.jpg20190826_145800Press here to bring up the keypad.https://hexandflex.com/wp-content/uploads/2019/08/20190826_145745-e1566830724160.jpg20190826_145745Choose start, stop centre or span.https://hexandflex.com/wp-content/uploads/2019/08/20190826_145736-e1566830192979.jpg20190826_145736Set the frequency range under the Stimulus menu.https://hexandflex.com/wp-content/uploads/2019/08/20190826_144703-e1566828396155.jpg20190826_144703NanoVNA with cal standardshttps://hexandflex.com/wp-content/uploads/2019/08/smith-1-e1566823480528.pngsmith2023-12-02T21:18:59+00:00monthlyhttps://hexandflex.com/2019/09/08/getting-started-with-the-nanovna-part-2/https://hexandflex.com/wp-content/uploads/2019/09/20190908_115957-e1567964840477.jpg20190908_115957FORMAT menu options.https://hexandflex.com/wp-content/uploads/2019/09/20190908_115917-e1567941958867.jpg20190908_115917CHANNEL menuhttps://hexandflex.com/wp-content/uploads/2019/09/20190908_115852-e1567941589612.jpg20190908_115852Trace now active. Currently measuring channel 1(S21).https://hexandflex.com/wp-content/uploads/2019/09/20190908_115838-e1567941499590.jpg20190908_115838Select Tracehttps://hexandflex.com/wp-content/uploads/2019/09/20190908_115825-e1567941384559.jpg20190908_115825TRACE menuhttps://hexandflex.com/wp-content/uploads/2019/09/20190908_115812.jpg20190908_115812Display Menu. Current Active Trace is 0(Yellow)2022-01-13T10:18:35+00:00monthlyhttps://hexandflex.com/2019/09/15/getting-started-with-the-nanovna-part-3-pc-software/https://hexandflex.com/wp-content/uploads/2019/09/nanovnacompare.pngnanoVNAcompareQUCStudio comparisonhttps://hexandflex.com/wp-content/uploads/2019/09/qucsnanovnacompare.pngQUCSnanoVNAcompareUsing QUCS studio to compare touchstone fileshttps://hexandflex.com/wp-content/uploads/2019/09/spi300-s11.pngSPI300 S11HexAndFlex 300MHZ+ Circularly Polarised Spiral Antenna.https://hexandflex.com/wp-content/uploads/2019/09/display-setup.pngDisplay setupDisplay setuphttps://hexandflex.com/wp-content/uploads/2019/09/mycal.pngmyCalMy calibration. With Load connected to port 1.https://hexandflex.com/wp-content/uploads/2019/09/vnasavercal.pngvnasaverCALCalibration Windowhttps://hexandflex.com/wp-content/uploads/2019/09/1segment-vs-10-segments.png1segment vs 10 segmentsLeft = 1 segment, Right = 10 segments.https://hexandflex.com/wp-content/uploads/2019/09/sweepcontrol.pngSweepControlSweep Controlhttps://hexandflex.com/wp-content/uploads/2019/09/vnasaver-main-screen.pngVNASaver main screenNanoVNA Saver. Enter the correct com port name into this box. In my case 'COM4'https://hexandflex.com/wp-content/uploads/2019/09/vnasaverdownload.pngvnaSaverDownloadFor Windows you can download the pre-compiled .exe file2022-05-03T01:18:27+00:00monthlyhttps://hexandflex.com/2020/01/11/impedance-matching-with-qucs-studio-and-vna/https://hexandflex.com/wp-content/uploads/2020/01/all-results.pngAll resultsMatching results.https://hexandflex.com/wp-content/uploads/2020/01/simulate-all.pngsimulate allTop to bottom High-Pass, Low-Pass, Unmatched.https://hexandflex.com/wp-content/uploads/2020/01/matching-networks.pngmatching networks2 matching networks pasted into schematic.https://hexandflex.com/wp-content/uploads/2020/01/matching-parameters.pngmatching parametersMatching parameters imported from plothttps://hexandflex.com/wp-content/uploads/2020/01/marker-added.pngmarker addedAdding a marker to a plothttps://hexandflex.com/wp-content/uploads/2020/01/sparameter-results.pngsparameter resultsThis should look the same as our VNA measurement.https://hexandflex.com/wp-content/uploads/2020/01/qucs_setequationandsweep-1.pngqucs_setequationandsweepSet Simulation PArameters and Equation to match the changes.https://hexandflex.com/wp-content/uploads/2020/01/qucs_setequationandsweep.pngqucs_setequationandsweepS Parameter Sim and Equations need to be changed to reflect our changed setup.https://hexandflex.com/wp-content/uploads/2020/01/configsparamblock.pngconfigsparamblockSelect you s-param file and set number of ports to 1https://hexandflex.com/wp-content/uploads/2020/01/sparamcompadded.pngsparamcompaddedS-parameter File Component in 'Systems Components section2020-01-11T17:00:54+00:00monthlyhttps://hexandflex.com/2017/12/11/making-an-ultra-wideband-antenna-part-3-performance/https://hexandflex.com/wp-content/uploads/2017/12/effective-apper-proj.jpgEFFECTIVE APPER PROJEffective Aperture(Average)https://hexandflex.com/wp-content/uploads/2017/12/effective-area-only.jpgeffective area onlyEffective Areahttps://hexandflex.com/wp-content/uploads/2017/12/fixed-effective-area.jpgfixed effective areaGain plotted with expected gain for given effective areahttps://hexandflex.com/wp-content/uploads/2017/12/2400-az.jpg2400 Az2400MHz Azimuth https://hexandflex.com/wp-content/uploads/2017/12/sketch-15128452363901144131378.pngsketch-15128452363901144131378.pnghttps://hexandflex.com/wp-content/uploads/2017/12/20171207_160141-1495261322.jpg20171207_160141-1495261322.jpghttps://hexandflex.com/wp-content/uploads/2017/12/20171207_1605531.jpg20171207_160553https://hexandflex.com/wp-content/uploads/2017/12/scr00005.pngscr00005SWRhttps://hexandflex.com/wp-content/uploads/2017/12/scr00006.pngscr00006Return Losshttps://hexandflex.com/wp-content/uploads/2017/12/scan0000762858506-e1512842023735.jpgscan0000762858506.jpgFinal Antenna2019-07-20T15:24:22+00:00monthlyhttps://hexandflex.com/uwb-vivaldi-800mhz/2019-04-13T17:30:46+00:00weekly0.6https://hexandflex.com/spi800/2019-04-13T17:25:55+00:00weekly0.6https://hexandflex.com/2018/10/05/spiral-antenna-part-2-modelling-and-simulation-with-openems/https://hexandflex.com/wp-content/uploads/2018/09/rhcp-directivity.pngRHCP DirectivityRHCP Directivityhttps://hexandflex.com/wp-content/uploads/2018/09/rhcp_lhcp.pngRHCP_LHCPhttps://hexandflex.com/wp-content/uploads/2018/09/return_loss.pngreturn_lossReturn Losshttps://hexandflex.com/wp-content/uploads/2018/09/real_imag.pngreal_imagFeed Point Impedance, Well matched to 120ohms https://hexandflex.com/wp-content/uploads/2018/09/themesh.jpgTheMeshOpenEMS Mesh2020-02-29T23:31:14+00:00monthlyhttps://hexandflex.com/products/2019-04-13T17:18:46+00:00weekly0.6https://hexandflex.com/2018/11/11/spiral-antenna-part-3-results-and-suckers/https://hexandflex.com/wp-content/uploads/2018/11/spi300_lhcpgain.pngSPI300_LHCPgainGain Plotshttps://hexandflex.com/wp-content/uploads/2018/11/spi300gif_9mb.gifSPI300GIF_9MBRHCP/LHCP Antenna Pattern Swept from 300MHz to 6GHzhttps://hexandflex.com/wp-content/uploads/2018/11/spi300efficiencyperc.pngAntenna Efficiency in %https://hexandflex.com/wp-content/uploads/2018/11/spi300efficiencydb.pngAntenna Efficiency in dBhttps://hexandflex.com/wp-content/uploads/2018/11/spi300vswr.pngVSWRhttps://hexandflex.com/wp-content/uploads/2018/11/big-and-little.jpgBig 300MHz and Small 800MHz on Windowhttps://hexandflex.com/wp-content/uploads/2018/11/log-spiral-antenna-in-anechoic-chamber-for-gain-testing-in-dbi.gifLog-Spiral-Antenna-in-Anechoic-Chamber-For-Gain-Testing-in-dBihttps://hexandflex.com/wp-content/uploads/2018/11/20181110_144553_hdr-981733601.jpg20181110_144553_hdr-981733601.jpghttps://hexandflex.com/wp-content/uploads/2018/11/20181109_1128592133502796.jpg20181109_1128592133502796.jpg2020-02-22T07:01:17+00:00monthlyhttps://hexandflex.com/2018/09/29/spiral-antenna-part-1/https://hexandflex.com/wp-content/uploads/2018/09/log_spiral.pnglog_spiralEquiangle Spiral (Log Spiral)https://hexandflex.com/wp-content/uploads/2018/09/arch_spiral.pngarch_spiralArchimedian Spiralhttps://hexandflex.com/wp-content/uploads/2018/09/spiralpcbfeed.pngspiralPCBfeedEquiangular Spiral Antenna with tapered microstrip feed.https://hexandflex.com/wp-content/uploads/2018/09/spiral.jpgspiralEquianglular Spiral Antennahttps://hexandflex.com/wp-content/uploads/2018/09/survey.jpgSurveyR&D Survey Results2018-10-01T13:59:57+00:00monthlyhttps://hexandflex.com/about/2018-04-27T09:09:51+00:00weekly0.6https://hexandflex.com/2017/12/06/making-an-ultra-wideband-antenna-part-2/https://hexandflex.com/wp-content/uploads/2017/12/vivaldi-basic2.jpgvivaldi basic2Basic Vivaldi Antennahttps://hexandflex.com/wp-content/uploads/2017/12/20171207_160553.jpgFinal AntennaFinal Antennahttps://hexandflex.com/wp-content/uploads/2017/12/lens.jpglensLens(a poor attempt)https://hexandflex.com/wp-content/uploads/2017/12/corregations.jpgCorrugationsCorrugationshttps://hexandflex.com/wp-content/uploads/2017/12/bava.jpgBalanced Antipodal AntennaBalanced Antipodal Antenna (BAVA)https://hexandflex.com/wp-content/uploads/2017/12/taper-feed-with-caption.jpgAntipodal Tapered FeedAntipodal Tapered Feedhttps://hexandflex.com/wp-content/uploads/2017/12/taper-feed.jpgtaper feedhttps://hexandflex.com/wp-content/uploads/2017/12/directfeed1.jpgDirect FeedDirect Feedhttps://hexandflex.com/wp-content/uploads/2017/12/directfeedwithhole.jpgIncreasing the feed bandwidthIncreasing the feed bandwidthhttps://hexandflex.com/wp-content/uploads/2017/12/directfeed.jpgDirect FeedDirect Feed2019-05-08T09:31:58+00:00monthlyhttps://hexandflex.com/2018/03/04/reconfigurable-ultra-wideband-antenna-array-kit-part-2-spacing/https://hexandflex.com/wp-content/uploads/2018/03/100mmspacing-combined-gain.png100mmspacing combined gainCombined Directivity (4 elements @ 100mm spacing)https://hexandflex.com/wp-content/uploads/2018/03/80mmspacing-combined-gain.png80mmspacing combined gainCombined Directivity (4 elements @ 80mm spacing)https://hexandflex.com/wp-content/uploads/2018/03/60mmspacing-combined-gain.png60mmspacing combined gainCombined Directivity (4 elements @ 60mm spacing)https://hexandflex.com/wp-content/uploads/2018/03/array-factor-187mm-800-and-6ghz.pngarray factor 187mm 800 and 6ghz187mm (blue=800MHz,Red=6GHz)https://hexandflex.com/wp-content/uploads/2018/03/array-factor-25mm-800-and-6ghz.pngarray factor 25mm 800 and 6ghz25mm (blue=800MHz,Red=6GHz)https://hexandflex.com/wp-content/uploads/2018/03/grating-lobe-table.pnggrating lobe tablehttps://hexandflex.com/wp-content/uploads/2018/03/spacing-grating-lobe.pngspacing grating lobeSpacing greater than wavelength allows array gain at undesired angleshttps://hexandflex.com/wp-content/uploads/2018/03/spacing-boresight.pngspacing boresightSignals arriving from boresight add up in phase2018-03-16T11:46:23+00:00monthlyhttps://hexandflex.com/2018/02/28/ultra-wideband-antenna-lab-measurements/https://hexandflex.com/wp-content/uploads/2018/02/palm-tree-antipodal-vivaldi-antenna-anechoic-chamber-photo-3.jpgPalm-Tree-Antipodal-Vivaldi-Antenna-Anechoic-Chamber-Photo-3Antenna being tested in anechoic chamber2022-12-18T18:51:47+00:00monthlyhttps://hexandflex.com/2018/02/17/uwb-antenna-rd-survey/2018-03-02T18:14:11+00:00monthlyhttps://hexandflex.com/2018/02/11/reconfigurable-ultra-wideband-antenna-array-kit-part-1/https://hexandflex.com/wp-content/uploads/2018/02/corparate-feed-single-element-e1518360368818.pngcorparate feed single elementSplitter-Spacer Single Elementhttps://hexandflex.com/wp-content/uploads/2018/02/corparate-feed-4x4-e1518360894117.pngcorparate feed 4x44 x 4 regular arrayhttps://hexandflex.com/wp-content/uploads/2018/02/corparate-feed-2x4-e1518360807571.pngcorparate feed 2x42 x 4 Regular Arrayhttps://hexandflex.com/wp-content/uploads/2018/02/corparate-feed-2x2-e1518360649210.pngcorparate feed 2x22 x 2 Regular Arrayhttps://hexandflex.com/wp-content/uploads/2018/02/corparate-feed-1x4-e1518360544490.pngcorparate feed 1x41 x 4 Regular Arrayhttps://hexandflex.com/wp-content/uploads/2018/02/array-basic.pngarray basicAll antennas fed with equal phase offset.2018-02-11T16:07:02+00:00monthlyhttps://hexandflex.com/2017/12/03/making-an-ultrawideband-antenna-pt1/https://hexandflex.com/wp-content/uploads/2017/12/drha.jpgDual Ridged Horn AntennaDual Ridged Horn Antennahttps://hexandflex.com/wp-content/uploads/2017/12/tsa.jpgTapered Slot AntennaTapered Slot Antennahttps://hexandflex.com/wp-content/uploads/2017/12/horn-morph-big.jpgHorn morphFrom top.; Horn Antenna, Open Horn Antenna, Tapered Slot Antenna, Open Horn Antenna, Fat Bowtie, Discone Antennahttps://hexandflex.com/wp-content/uploads/2017/12/spiral.jpgArchimedean SpiralArchimedean Spiralhttps://hexandflex.com/wp-content/uploads/2017/12/logp.jpgLog Periodic Dipole ArrayLog Periodic Dipole Arrayhttps://hexandflex.com/wp-content/uploads/2017/12/lptawithcomplmentary.jpgLog Periodic Tooth AntennaLog Periodic Tooth Antenna with it's complementary version.https://hexandflex.com/wp-content/uploads/2017/12/lpta.jpgLog Periodic Tooth AntennaLog Periodic Tooth Antennahttps://hexandflex.com/wp-content/uploads/2017/12/discone.jpgdisconeDiscone Antennshttps://hexandflex.com/wp-content/uploads/2017/12/horn1.jpgHorn Antennshttps://hexandflex.com/wp-content/uploads/2017/12/uwb-monopole.jpgUWB monopoleUWB Monopoles and Dipoles2017-12-11T08:54:00+00:00monthlyhttps://hexandflex.com/2016/07/15/wanhao-duplicator-i3-pei-bed-mod/https://hexandflex.com/wp-content/uploads/2016/07/pei-bed.jpgPEI bedhttps://hexandflex.com/wp-content/uploads/2016/07/wdi3-pei-bed-mount-top-view1.pngwdi3 pei bed mount top viewhttps://hexandflex.com/wp-content/uploads/2016/07/wdi3-pei-bed-mount-cut-view1.pngwdi3 pei bed mount cut viewhttps://hexandflex.com/wp-content/uploads/2016/07/wdi3-pei-bed-mount-top-view.pngwdi3 pei bed mount top viewhttps://hexandflex.com/wp-content/uploads/2016/07/wdi3-pei-bed-mount-cut-view.pngwdi3 pei bed mount cut view2017-12-03T10:46:21+00:00monthlyhttps://hexandflex.com/2014/01/04/new-blog/2014-01-04T12:14:33+00:00monthlyhttps://hexandflex.comdaily1.02024-07-21T21:58:15+00:00