This's a differentially fed bow-tie antenna.

Can I feed each half of the bow-tie with a 50 ohms unbalanced coax feed line and connect these two coax lines with a 180 degree hybrid coupler whose impedance is 50 ohms?

enter image description here

  • \$\begingroup\$ Data sheets for the antenna and hybrid coupler please. Or, why not use a simple balun. \$\endgroup\$
    – Andy aka
    Commented Dec 8, 2021 at 18:12
  • \$\begingroup\$ @Andyaka I just used a google image of differentially fed bow-tie structure. There is no antenna and hybrid coupler. I've been just wondering that what if I feed the elements separately like a monopole antenna with 50 ohm unbalanced lines, will this be balanced with a 180 degree hybrid coupler. \$\endgroup\$
    – Xant
    Commented Dec 8, 2021 at 18:16
  • \$\begingroup\$ That should work. Tie the two coax shields together and earth them (might work unearthed if they are just only bonded to each other). Feed into the coupler to get A-B output. That's what I'd do. \$\endgroup\$
    – Andy aka
    Commented Dec 8, 2021 at 18:18
  • \$\begingroup\$ @Andyaka why bond to each other rather than separately earthed? \$\endgroup\$
    – Xant
    Commented Dec 8, 2021 at 18:25
  • \$\begingroup\$ How to match? Huh? What is the impedance of that antenna? \$\endgroup\$ Commented Dec 8, 2021 at 18:27


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