CTS 223: How Does an Antenna Work?

In this episode, we have Ben Robson, RF Engineer, with us to explain how an antenna works. He went into great details on how the antenna works. It is probably the longest episode we have recorded so far! But it is well worth it! Thank you Ben for coming on the show to educate us! Enjoy.



Inside of a patch directional antenna (14dBi gain)



Example of S-11 Plots



Links & Resources



* VSWR / Return Loss Calculator – Electrical Engineering & Electronics Tools: https://www.allaboutcircuits.com/tools/vswr-return-loss-calculator/* Definition of S-Parameters: http://www.antenna-theory.com/definitions/sparameters.php* S11 Plots:* https://www.researchgate.net/profile/Aymen_Khaleel2/publication/276353525/figure/fig24/AS:294595561836552@1447248463416/S11-parameter-graph-for-single-patch-antenna.png* https://www.researchgate.net/profile/Jawad_Ali23/publication/311228399/figure/fig14/AS:434369224548366@1480573101877/Return-Loss-S11-Plot-of-Cellulose-based-Dual-Band-24-GHz-and-57GHz-Antenna.png* Example of Cisco Antenna Specs: https://www.cisco.com/c/en/us/td/docs/wireless/antenna/installation/guide/ant2513p4mn.html* Example of Ventev Antenna Specs: https://ventevinfra.com/wp-content/uploads/246112_2.4_5-GHz-13dBi-Wi-Fi-Warehouse-Antenna-with-4-N-Style-Jack-Connectors.pdf* Antenna Theory: http://www.antenna-theory.com/* MatLab – software to design antenna: https://www.mathworks.com/products/matlab.html* Understanding Cable and Antenna Analysis: https://www.anritsu.com/en-US/test-measurement/solutions/en-us/understanding-cable-and-antenna-analysis* Cable Attenuation Calculator: https://www.timesmicrowave.com/calculator/* Conversion Calculators: https://www.pasternack.com/t-rf-microwave-calculators-and-conversions.aspx