For this antenna, which cites a VSWR of 1.4, can that be improved (decreased) with the use of a matching network? Could the matching network be between the feed cable and the board or must it be between the antenna and the feed cable?

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    \$\begingroup\$ On the AM band, for a receiver ... you're over-thinking it. Just connect it. It's not like you'll have 30kW of power reflected back into a transmitter. Not a reliably measurable signal loss, no. \$\endgroup\$ May 16, 2018 at 21:30
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    \$\begingroup\$ With all due respect: If antenna design questions are considered "off-topic" in an ELECTRICAL ENGINEERING forum, I daresay that James Clerk Maxwell would be very disappointed in you. Amazing \$\endgroup\$
    – Seamus
    May 16, 2018 at 21:50
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    \$\begingroup\$ In an effort to shed some light on your question, I would say this, "Yes, it can be improved with a matching network, but at a 1.4 VSWR, it hardly seems worth the effort, and your EIRP could be lower even with a lower/better VSWR." \$\endgroup\$
    – Seamus
    May 16, 2018 at 21:54
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    \$\begingroup\$ Hmm. This seems like a legit question, which would lead to better understanding of RF fundamentals. Vote to reopen, anyone? \$\endgroup\$
    – bitsmack
    May 16, 2018 at 22:22
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    \$\begingroup\$ @bitsmack I agree it's a perfectly reasonable question (reopened) even though the answer is basically "don't bother". If you're after the last 0.5dB of performance then it's theoretically possible ... but you'd be better starting off with a decent AM loop antenna instead. Perhaps aa7ee.wordpress.com/2013/11/17/… or radiomagonline.com/misc/shielded-loop-antennas-for-the-am-band Much more likely potential for improved performance. \$\endgroup\$ May 17, 2018 at 10:53


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