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A Quad-Helix Antenna
According to specs provided, each helix has a nominal gain of 18 db, so the quad has a gain of around 24 db at 1420 MHz
post 21 Feb 2024
Antenna Wifi Links →
Antenna Theory Helical
Helical antenna is an example of wire antenna and itself forms the shape of a helix. This is a broadband VHF and UHF antenn
BiQuad 802.11b Antenna
for the 110 x 110 mm reflector, but it will be just as effective if made out of sheet brass or copper
Building a biquad antenna for wireless 802.11b
They have superior sidelobe performance when compared with a wire grid antenna
Can feed for 23cm and 13cm
A copper or brass disc, 23cm diameter, is soldered to the outer lip of a 95mm i.d. copper or brass tube
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Helical antenna is an example of wire antenna and itself forms the shape of a helix. This is a broadband VHF and UHF antenn
for the 110 x 110 mm reflector, but it will be just as effective if made out of sheet brass or copper
They have superior sidelobe performance when compared with a wire grid antenna
A copper or brass disc, 23cm diameter, is soldered to the outer lip of a 95mm i.d. copper or brass tube