Tuning an Electrically Short Antenna for Field Operation

#Antenna #HAM #Radio #5G #IoT

Now Sun Cycle 25 is building and increasingly favoring radio operation in the HF band (1.5 to 30 MHz). There are military and other radio applications for 5 to 20 W battery-operated radios with whip antennas that make the radio portable. A whip antenna has no ground return or proper counterpoise, therefore not optimized for signal propagation. Thus, some users drag a wire behind. This solution is not ideal. We explore optimizing antenna performance for HF, VHF, and UHF (spanning 1.5 to 512 MHz) manpacks and using an antenna tuning unit (ATU). Battery-operated manpacks with internal ATUs were used for testing, comparing internal ATUs with the performance obtained using external tuners. The necessary mathematical treatment for this case is provided. Prof. Sarkar was involved with the modeling software WIPL-D and HOBBIES. Some anecdotes will be provided with interactions with him on these. 

• Date: 28 Sep 2022
• Time: 03:00 PM to 04:00 PM
• All times are (GMT-05:00) US/Eastern
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• McLean Blvd.
• Paterson, New Jersey
• United States 07504
• Building: 201

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• Co-sponsored by IEEE North Jersey Section

• Starts 20 September 2022 10:00 AM
• Ends 28 September 2022 04:00 PM
• All times are (GMT-05:00) US/Eastern
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